【故障|监听】TNS-12518、TNS-00517和 Linux Error：32：Broken pipe
1.1 BLOG文档结构图
1.2 前言部分
1.2.1 导读和注意事项
各位技术爱好者，看完本文后，你可以掌握如下的技能，也可以学到一些其它你所不知道的知识，~O(∩_∩)O~：
① Linux Error: 32: Broken pipe的可能原因（重点）
② TNS-12518: TNS:listener could not hand off client connection的一般解决过程
③ SQL*Plus登录报错：ORA-12537: TNS:connection closed
Tips：
① 本文在itpub（http://blog.itpub.net/26736162）、博客园(http://www.cnblogs.com/lhrbest)和微信公众号（xiaomaimiaolhr）上有同步更新。
② 文章中用到的所有代码、相关软件、相关资料及本文的pdf版本都请前往小麦苗的云盘下载，小麦苗的云盘地址见：http://blog.itpub.net/26736162/viewspace-1624453/。
③ 若网页文章代码格式有错乱，请下载pdf格式的文档来阅读。
④ 在本篇BLOG中，代码输出部分一般放在一行一列的表格中。
本文如有错误或不完善的地方请大家多多指正，ITPUB留言或QQ皆可，您的批评指正是我写作的最大动力。
1.3 故障分析及解决过程
1.3.1 故障环境介绍
项目 | source db |
db 类型 | 单机 |
db version | 11.2.0.3.0 |
db 存储 | ASM |
OS版本及kernel版本 | RHEL 6.5 |
1.3.2 故障发生现象及报错信息
登陆报错：
[oracle@orcltest ~]$ sqlplus 'sys/"l@h\r/0"'@LHRDB as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Thu Mar 16 12:06:36 2017
Copyright (c) 1982, 2011, Oracle. All rights reserved.
ERROR: ORA-12537: TNS:connection closed
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查监听日志（/u01/app/11.2.0/grid/network/admin/listener.ora），报错如下：
16-MAR-2017 12:06:36 * (CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=lhrdb)(CID=(PROGRAM=sqlplus)(HOST=orcltest)(USER=oracle))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.59.129)(PORT=12333)) * establish * lhrdb * 12518 TNS-12518: TNS:listener could not hand off client connection TNS-12547: TNS:lost contact TNS-12560: TNS:protocol adapter error TNS-00517: Lost contact Linux Error: 32: Broken pipe
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1.3.3 故障分析
潇湘隐者：http://www.cnblogs.com/kerrycode/p/4164838.html
我的解决参考：http://www.itpub.net/thread-1870217-1-1.html
根据MOS：Troubleshooting Guide for TNS-12518 TNS listener could not hand off client connection (文档 ID 550859.1)中，
Error: 32: Broken pipe
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection TNS-12547: TNS:lost contact TNS-12560: TNS:protocol adapter error TNS-00517: Lost contact IBM/AIX RISC System/6000 Error: 32: Broken pipe
Cause: The error 32 indicates the communication has been broken while the listener is trying to hand off the client connection to the server process or dispatcher process.
Action: 1. One of reason would be processes parameter being low, and can be verified by the v$resource_limit view. 2. In Shared Server mode, check the 'lsnrctl services' output and see if the dispatcher has refused any connections, if so, then consider increasing the number of dispatchers. 3. Check the alert log for any possible errors. 4. Memory resource is also another cause for this issue. Check the swap, memory usage of the OS. 5. If RAC/SCAN or listener is running in separate home, check the following note:
Note: 1069517.1 ORA-12537 or TNS-12518 if Listener (including SCAN Listener) and Database are Owned by Different OS User
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根据第5条，因为我的grid是11.2.0.1，而Oracle是11.2.0.3的，查询MOS:ORA-12537 / ORA-12547 or TNS-12518 if Listener (including SCAN Listener) and Database are Owned by Different OS User (文档 ID 1069517.1)，里边明确指出是由于$RDBMS_HOME/bin/oracle文件的权限问题导致。
1.3.4 故障解决
$ORACLE_HOME/bin/oracle文件的权限问题，应该为-rwsr-s--x，属主应该是oracle:asmadmin。
解决办法：
方法：
1、修改oracle的权限为6751
[root@orcltest bin]# ll /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle -rwxr-s--x. 1 oracle asmadmin 210823844 May 18 2014 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest ~]# chmod 6751 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest bin]# ll /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle -rwsr-s--x. 1 oracle asmadmin 210823844 May 18 2014 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest bin]#
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2、重新用setasmgidwrap设置oracle
[root@orcltest bin]# ll /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle -rwxr-s--x. 1 oracle asmadmin 210823844 May 18 2014 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest ~]# /u01/app/11.2.0/grid/bin/setasmgidwrap -o /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest bin]# ll /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle -rwsr-s--x. 1 oracle asmadmin 210823844 May 18 2014 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest bin]# [root@orcltest bin]# stat /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle File: `/u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle' Size: 210823844 Blocks: 411776 IO Block: 4096 regular file Device: 802h/2050d Inode: 1717737 Links: 1 Access: (6751/-rwsr-s--x) Uid: ( 501/ oracle) Gid: ( 504/asmadmin) Access: 2017-03-16 11:05:44.809363974 +0800 Modify: 2014-05-18 17:09:50.508549983 +0800 Change: 2017-03-16 12:33:15.733816820 +0800 [root@orcltest bin]# [root@orcltest bin]#
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重新连接：
[oracle@orcltest ~]$ sqlplus 'sys/"l@h\r/0"'@LHRDB as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Thu Mar 16 13:32:48 2017
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Automatic Storage Management, OLAP, Data Mining and Real Application Testing options
SYS@LHRDB>
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1.4 故障处理总结
如果可执行文件$ORACLE_HOME/bin/oracle的属主或权限设定出了问题，那么可能会造成很多问题。例如：无法登陆到数据库、ora-600错误、“TNS-12518: TNS:listener could not hand off client connection”、“Linux Error: 32: Broken pipe”、“ORA-12537: TNS:connection closed”、访问ASM磁盘出错等。解决办法很简单，可以在grid用户下运行setasmgidwrap命令重新配置$ORACLE_HOME/bin/oracle可执行文件的权限和属主或者直接将oracle文件的权限修改为6751。$ORACLE_HOME/bin/oracle可执行文件正确属主应该是oracle:asmadmin，并且权限必须有s共享才可以，如下所示：
[root@orcltest ~]$ which setasmgidwrap /u01/app/11.2.0/grid/bin/setasmgidwrap [root@orcltest ~]$ setasmgidwrap -o /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest ~]$ ll /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle -rwsr-s--x 1 oracle asmadmin 232399083 Apr 21 2015 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest ~]# ll /u01/app/11.2.0/grid/bin/oracle -rwsr-s--x. 1 grid oinstall 203972117 Jan 5 2015 /u01/app/11.2.0/grid/bin/oracle [root@orcltest ~]# chmod 6751 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest ~]# ll /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle -rwsr-s--x 1 oracle asmadmin 232399083 Apr 21 2015 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle [root@orcltest bin]# cd /u01/app/oracle/product/11.2.0/dbhome_1/bin/ [root@orcltest bin]# which stat /usr/bin/stat [root@orcltest bin]# stat oracle File: `oracle' Size: 210823844 Blocks: 411776 IO Block: 4096 regular file Device: 802h/2050d Inode: 1717737 Links: 1 Access: (6751/-rwsr-s--x) Uid: ( 501/ oracle) Gid: ( 504/asmadmin) Access: 2017-03-16 12:33:44.809363974 +0800 Modify: 2014-05-18 17:09:50.508549983 +0800 Change: 2017-03-16 11:05:15.733816820 +0800
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问：在UNIX/LINUX环境中，oracle数据库启动后存在许多后台进程和前台进程，虽然相关进程产生一些trace文件也是常有的事情，但是真正是什么决定了oracle相关进程的属性呢？
答：通常来说，oracle的后台进程的调用是依赖于$ORACLE_HOME/bin/oracle这个二进制文件，但它从远端连入而分配的服务器进程（server process）相关属主的属性则是继承自listener进程，而listener进程的属主属性同样是进程自其启动的用户（分oracle用户和grid用户）$ORACLE_HOME/bin/oracle的属主属性。
其他原因：
启动ORACLE监听的时候 报错 Linux Error: 32: Broken pipe
原因：原来/home/oracle/product/9.2.0.1.0/network/log/listener.log 文件超过2G，监听就会断掉。
解决办法：清空日志文件
[oracle@localhost oracle]$ cd $ORACLE_HOME/network/log
[oracle@chicago log]$ cat </dev/null> listener.log
至此问题解决
有个命令可以对这个写日志进行关闭
LSNRCTL> set log_status off
要继续写日志，只需要
LSNRCTL> set log_status on
也可以在 listener.ora 文件里面添加一项
LOGGING_LISTENER = OFF
添加了这个之后无论你怎么重启监听，都不会写日志了。
1.5 用到的SQL集合
setasmgidwrap -o /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle chmod 6751 /u01/app/oracle/product/11.2.0/dbhome_1/bin/oracle stat oracle |
1.6 参考文章
1.6.1 MOS
1.6.1.1 Troubleshooting Guide for TNS-12518 TNS listener could not hand off client connection (文档 ID 550859.1)
In this Document
| Purpose |
| Troubleshooting Steps |
| Section I: Steps to approach ORA-12518/TNS-12518 Error: |
| Section II: Commonly Known Errors: |
| Error: 32: Broken pipe |
| Error: 11: Resource temporarily unavailable |
| Error: Connection Pooling limit reached |
| Error: 24: Too many open files |
| Section III: Errors Specific to Windows |
| Error: 2: No such file or directory |
| Error: 233: Unknown error |
| Error: 54: Unknown error |
| Error: 10022: Unknown error |
| References |
APPLIES TO:
Oracle Net Services - Version 10.1.0.5 to 12.1.0.2 [Release 10.1 to 12.1]
Information in this document applies to any platform.
PURPOSE
This article discusses how to troubleshoot the ORA-12518/TNS-12518 listener errors.
TROUBLESHOOTING STEPS
Section I: Steps to approach ORA-12518/TNS-12518 Error:
ORA-12518/TNS-12518 indicates a problem while listener hands off the client connection to the server process or dispatcher process.TNS-12518 is logged in the listener log. The client might receive ORA-12518 or some other disconnection errors like ORA-12537. Once TNS-12518 is noted in the listener log, follow the below steps to approach and resolve this error.
Let us have a small discussion about how actually database connections are made:
In Dedicated mode, database client contacts listener and supplies the SERVICE NAME of the database. Then listener spawns a dedicated server process and hands off the client connection to this dedicated server process. TNS-12518 indicates a problem while handing off the client connection to the server process.
In Shared Server mode, database client contacts listener and supplies the SERVICE NAME of the database. Then listener hands off the client connection to one of the dispatcher configured for that service. TNS-12518 indicates a problem while handing off the client connection to the dispatcher server process.
Though this error is logged in the listener log, the listener is just the messenger, ORA-12518/TNS-12518 is mostly related to RDBMS and OS resources.
Step 1. Is listener version compatible to the database
Check if you are using compatible listener version for your database version.
If the database is 8i then use 8i or 9i listeners only. 10g listeners are not compatible to work with 8i databases.
For 9i databases, 9i or 10g listeners can be used.
For 10g databases, only 10g listeners can be used.
The general rule is that use the higher version of the listener when there is a version mismatch between database and the listener.
Step 2. Gather more information from listener log
The first place you would look for the TNS-12518 error is the listener log. Usually the listener log would be located under $ORACLE_HOME/network/log directory. You can use 'lsnrctl status' command output to look for the location of the listener log file.
$lsnrctl status
- - -
- - -
Listener Parameter File /ora10g/home_ora10g/network/admin/listener.ora
Listener Log File /ora10g/home_ora10g/network/log/listener.log
- - -
- - -
listener log gives the complete error stack and the database service name to which the client tried to connect to.
19-SEP-2007 13:55:34 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))(SERVICE_NAME=test.oracle.com)) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.10.10.3)(PORT=36030)) * establish * test.oracle.com * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
In the above example, listener log shows the complete error stack, the bottom error being 32 is the OS error. It also shows that the jdbc client from IP 10.10.10.3 has tried to connect to the database service 'test.oracle.com' and failed with the error 12518.
Look for the lowest error in the stack. That is the error we have to concentrate on and try to resolve it. In the above example, the lower error is 'Linux Error: 32: Broken pipe'.
Step 3. Are service handlers in blocked state
Check if the handlers are in blocked state. Check the output of the 'lsnrctl services'. Examine the status information under the database service name. From the listener log you would know which database service was affected by the 12518 error, now with the output of the 'lsnrctl services' under that service name gather more information.
Service "test.oracle.com" has 1 instance(s).
Instance "db10g", status READY, has 2 handler(s) for this service...
Handler(s):
"DEDICATED" established:9 refused:0 state:ready
LOCAL SERVER
"D000" established:10 refused:0 current:0 max:972 state:ready
DISPATCHER <machine: oid.mohan.com, pid: 25908>
(ADDRESS=(PROTOCOL=tcp)(HOST=oid.mohan.com)(PORT=33487))
The highlighted state should be in 'ready' state for the connection to be successful. If the state is in 'blocked' then the connection are not possible. The state of a handler could be in blocked state in the following scenario:
i. The database parameter processes reached its value.
ii. The database is in the process of startup or shutting down.
In shared server mode, the number of dispatchers should be set according to the load that you expect. 'lsnrctl services' output shows the maximum number(max:997) of connections that the dispatcher would accept and the number connections refused (refused:0) by this dispatcher. If any connections refused by the dispatcher, then consider increasing the number of dispatchers.
If you are using PFILE edit init.ora and increase the dispatchers parameter. If you are using SPFILE you can dynamically increase the dispatchers parameter by the'alter system set' command.
Step 4. Is a local BEQ connection successful
Check if local BEQ connection to the database works fine. It also verifies if the database is up and in good condition to accept the connection. If the database is down or in a hung state then a connection request to the database by the listener will not be possible.
Connect to the database server via telnet or ssh and check if a local bequeath SQL*Plus connection works. In other words, issue:
sqlplus username/password [Enter]
This connection bypasses the listener and directly connects to the database via the BEQ (bequeath) protocol. If this fails, then the TNS-12518 listener error is simply a result of the database issue.
One such error is:
ORA-12560: TNS:protocol adapter error
A possible cause for this error on Microsoft Windows servers, is that the Windows Database Service has not yet been created (common when creating a "standby" instance).
Resolution for this would be to create the Windows Service first by using the "oradim" command (see the Database Admin guide for details on oradim and service creation).
Step 5. Has number of processes reached its limit?
If local BEQ is successful, check the below query
SQL> select * from v$resource_limit;
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_AL LIMIT_VALU
-------------------- ------------------- --------------- ---------- ----------
processes 249 250 250 250
sessions 54 82 280 280
- - - - - -
- - - - - -
Verify if the processes or sessions reached its limit value. If these database parameters reached its limit value, then consider increasing it accordingly.
In the above example, the processes parameter has been set to 250. It's MAX_UTILIZATION has reached the limit value of 250, so the processes parameter should be increased further to accomodate the number of incoming connections.
Edit the init.ora and set the processes parameter to a higher value. By default, if you just increase the processes it is enough, the sessions value would automatically be increased.
Check the alert.log for a corresponding error such as "ksvcreate" process failed, etc. Check timestamp against listener.log timestamps for causal relationship.
Step 6. Are OS kernel parameters configured for optimum?
Database is operated by a single user, normally it would be 'oracle' user. At the Operating System level, there is a limit for the number of process spawned by a user. And also there is a limit for the total number of process running on the entire OS.
The Oracle Database and the newly spawned processes would be owned by the 'oracle' user. And so make sure that these values are set accordingly.On Unix these values are configured through the configurable OS kernel parameters and is specific to Operating Systems. You will have check your corresponding OS documentation for your OS.
For example for HP-UX the configurable kernel parameters are,
maxuprc Maximum number of processes for each non-root user
nproc Maximum number of processes on the system
Step 7. Does alert log have any errors?
Look in alert log and look for any errors related to memory or process during the time the error TNS-12518 occurred in the listener log. If the alert log has any memory related errors, there there is a potential memory resource issue at the OS level.
OS memory issues can be addressed by the below:
i. Make sure that the OS has been configured with the enough Swap memory. In case of Windows it is called as Virtual Memory.
ii. Reduce the size of SGA, thus the newly spawned server process will have some more system memory available.
iii. Reduce the PGA size, so that the newly spawned server process would occupy less memory.
iv. If you are in DEDICATED mode, try switching to MTS mode.
To address memory issue for 32-bit Windows: Refer Note 371983.1
If there are any memory or process related error in the alert log during the time the TNS-12518 is logged in the listener log, then those errors in the alert log should be focused on and should be solved at first. Because, the errors in the alert log is the base error for the TNS-12518 in the listener log.
However, the errors in the alert logs are not being discussed in this article, they are out of the scope of this article.
Step 8. If using a statically defined SID_DESC in the listener.ora file for your sid, ensure that it is configured properly.
A common mistake is to include a (PROGRAM=EXTPROC) parameter:
(SID_LIST=
(SID_DESC =
(GLOBAL_DBNAME = ORCL.oracle.com)
(SID_NAME = ORCL)
(PROGRAM=extproc)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)))
This misconfiguration occurs when the PLSExtproc SID_DESC is copied, pasted and edited in the listener.ora file. The inclusion of the PROGRAM line will cause an ORA-12518 to be returned to the client. Here's the corrected SID_DESC for our example SID:
(SID_LIST=
(SID_DESC =
(GLOBAL_DBNAME = ORCL.oracle.com)
(SID_NAME = ORCL)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)))
Section II: Commonly Known Errors:
This section lists some of the known and reported errors. It is also recommended that you refer the Section I above for a generic troubleshooting approach to the error TNS-12518.
Below shows example error stack that can be found in the listener log. The last line in the error stack shows the actual operating system name. Depending on the OS, only the operating system name would be different. For example, if you encounter error 32: Broken pipe, according to the OS, the last line in the error stack would be different only by the OS name, as shown below.
Solaris Error: 32: Broken pipe
HPUX Error: 32: Broken pipe
Linux Error: 32: Broken pipe
_______________________________________________________________________________________________________________________________________
Error: 32: Broken pipe
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
IBM/AIX RISC System/6000 Error: 32: Broken pipe
Cause:
The error 32 indicates the communication has been broken while the listener is trying to hand off the client connection to the server process or dispatcher process.
Action:
1. One of reason would be processes parameter being low, and can be verified by the v$resource_limit view.
2. In Shared Server mode, check the 'lsnrctl services' output and see if the dispatcher has refused any connections, if so, then consider increasing the number of dispatchers.
3. Check the alert log for any possible errors.
4. Memory resource is also another cause for this issue. Check the swap, memory usage of the OS.
5. If RAC/SCAN or listener is running in separate home, check the following note:
Note: 1069517.1 ORA-12537 or TNS-12518 if Listener (including SCAN Listener) and Database are Owned by Different OS User
______________________________________________________________________________________________________________________________________
Error: 11: Resource temporarily unavailable
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection
TNS-12549: TNS:operating system resource quota exceeded
TNS-12560: TNS:protocol adapter error
TNS-00519: Operating system resource quota exceeded
IBM/AIX RISC System/6000 Error: 11: Resource temporarily unavailable
Cause:
As the error indicates operating system resource has exceeded.
Action:
1. Increase the appropriate OS kernel parameters for 'maximum number of processes allowed per user'.
For example for HP-UX the parameters are maxuprc and nproc.
______________________________________________________________________________________________________________________________________
Error: 12: Not enough space
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection
TNS-12549: TNS:operating system resource quota exceeded
TNS-12560: TNS:protocol adapter error
TNS-00519: Operating system resource quota exceeded
IBM/AIX RISC System/6000 Error: 12: Not enough space
Cause:
This is a memory related issue. The error indicates that there is not enough memory available to spawn and hand off the client connections.
Typical problems are:
- Out of system memory / swap
- Out of process slots in the process table
- Streams resources depleted
- Out of File Handles
- sga memory usage
Action:
1. Check in the alert log for any possible memory related error.
2. Increase swap/Virtual memory if possible the available memory.
3. SGA and PGA can be reduced to address the memory consumption.
4. MTS mode can be used to reduce the amount of process and memory consumption.
________________________________________________________________________________________________________________________________________
Error: Connection Pooling limit reached
Error stack in listener log:
TNS-12518 TNS:listener could not hand off client connection
TNS-12564 TNS:connection refused
TNS-12602 TNS: Connection Pooling limit reached
Action:
1. Try increasing initial number of dispatchers.
_______________________________________________________________________________________________________________________________________
Error: 24: Too many open files
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
Linux Error: 24: Too many open files
or
TNS-12518: TNS:listener could not hand off client connection
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
Solaris Error: 24: Too many open files
Error Description:
Out of file descriptors
Cause:
Can be caused by the following unpublished defect:
BUG 13078786 - LISTENER GOES DOWN SUDDENLY W/ LINUX ERROR: 32: BROKEN PIPE
Action:
See Note 1527483.1 11.2 : ORA-12518 Listener Hangs and Reports "Too Many Open Files"
Use prescribed workaround OR apply one-off patch to your environment if available.
_______________________________________________________________________________________________________________________________________
Error: 1: Not Owner
Error Description:
The listener doesn't own or have permissions to write a necessary file
Cause:
The listener doesn't have adequate permission on socket files
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
HPUX Error: 1: Not owner
Action: Clear /var/tmp/.oracle/ directory
IMPORTANT NOTE: In RAC environment, please use caution when removing existing socket files. See Note 2099377.1 How to remove Network socket files in a RAC Environment for Cluster/Resource startup issues
=========================================================================================================================
Section III: Errors Specific to Windows
It is also recommended that you refer the Section I above for a generic troubleshooting approach to the error TNS-12518.
This section briefly describes about the errors that are encountered on Windows Operating System. TNS-12518 most commonly occurs on 32-bit OS due to its memory constraint, however TNS-12518 can occur on 64-bit OS as well. See Note 873752.1 for more information on Windows memory addressing and the 3GB switch.
_______________________________________________________________________________________________________________________________________
Error: 2: No such file or directory
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection
TNS-12560: TNS:proto adapter error
TNS-00530: Proto adapter error
32-bit Windows Error: 2: No such file or directory
Error Description: ERROR_FILE_NOT_FOUND 2 The system cannot find the file specified.
Cause: This indicates the database service is not actually available
Action: 1.Verify if the intended database really up and accepting local BEQ connections.
_______________________________________________________________________________________________________________________________________
Error: 233: Unknown error
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 233: Unknown error
Error Description:
ERROR_PIPE_NOT_CONNECTED
233
No process is on the other end of the pipe.
Cause:
The communication has been broken while the listener is trying to hand off the client connection to the server process or dispatcher process.
Action:
Refer Note 371983.1
_______________________________________________________________________________________________________________________________________
Error: 54: Unknown error
Error stack in listener log:
TNS-12518: TNS:listener could not hand off client connection
TNS-12571: TNS:packet writer failure
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
32-bit Windows Error: 54: Unknown error
Error Description:
ERROR_NETWORK_BUSY
54
0x36
The network is busy.
Cause:
This indicates a bottleneck at the network layer(TCP/IP).
Action:
1.Try increasing dispatchers and shared servers.
Error: 10022: Unknown error
Error stack in listener log:
12518 TNS-12518: TNS:listener could not hand off client connection
TNS-12560: TNS:protocol adapter error TNS-00534: Failed to grant connection ownership to child
64-bit Windows Error: 10022: Unknown error
Error Description:
Error: 10022: Invalid Argument
Cause:
An invalid argument was supplied.
Action:
Check the Control Panel Services Properties and confirm both listener and instance are started with same "Log on As" account.
Note that in 12c, the account would be the Oracle Home User.
Note that a JDBC Thin connection from a Windows client might also yield the 12518:
Macromedia}{Oracle JDBC Driver][Oracle]Connection refused, (DESCRIPTION=(TMP=)(VSNNUM=186646784)(ERR=12518)(ERROR_STACK= (ERROR=(CODE=12518)(EMFI=4))(ERROR=(CODE=12560)(EMFI=4))(ERROR=(CODE=530)(EMFI=4))(ERROR=(BUF='64-bit Windows Error:203: Unknown error'))))
REFERENCES
NOTE:873752.1
- Windows Memory Configuration: 32-bit and 64-bit
NOTE:1069517.1
- ORA-12537 / ORA-12547 or TNS-12518 if Listener (including SCAN Listener) and Database are Owned by Different OS User
NOTE:371983.1
- 10gR2 Dedicated Connections Intermittently Fail with TNS-12518
NOTE:1527483.1
- 11.2 : ORA-12518 Listener Hangs and Reports "Too Many Open Files"
1.6.1.2 ORA-12537 / ORA-12547 or TNS-12518 if Listener (including SCAN Listener) and Database are Owned by Different OS User (文档 ID 1069517.1)
In this Document
| Symptoms |
| Cause |
| Solution |
| References |
APPLIES TO:
Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Oracle Database Configuration Assistant - Version 11.1.0.7 and later
Oracle Net Services - Version 11.2.0.2 and later
Information in this document applies to any platform.
SYMPTOMS
In environment where listener home (including SCAN listener which resides in GRID Infrastructure/ASM home) and database home are owned by different OS user, ORA-12537 could happen when connecting through listener, when creating database through DBCA, or when installing database software and creating a database in runInstaller. Job Role Separation is a typical example as SCAN and local grid home listener is owned differently than database.
- Error detail
12537, 00000, "TNS:connection closed"
// *Cause: "End of file" condition has been reached; partner has disconnected.
// *Action: None needed; this is an information message.
Before the error is reported, connection could hang for a while, and a core file may also be generated.
- Screen output:
SQL> conn system/xxx@OSES
ERROR:
ORA-12537: TNS:connection closed
OR
PRCR-1079 : Failed to start resource ora.db11.db
CRS-5011: Check of resource db11 failed: details at ..
CRS-2674: Start of ora.db11.db on racnode1 failed
ORA-12546: TNS:permission denied
- listener_scann.log or listener.log
TNS-12518: TNS:listener could not hand off client connection
TNS-12546: TNS:permission denied
TNS-12560: TNS:protocol adapter error
TNS-00516: Permission denied
Linux Error: 13: Permission denied
OR
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
- runInstaller error if installing
INFO: Starting Output Reader Threads for process /ocw/grid/bin/kfod
INFO: Parsing KFOD-00300: OCI error [-1] [OCI error] [ORA-12547: TNS:lost contact
INFO: Parsing ] [12547]
INFO: Parsing
INFO: The process /ocw/grid/bin/kfod exited with code 1
..
SEVERE: [FATAL] [INS-30502] No ASM disk group found.
CAUSE: There were no disk groups managed by the ASM instance +ASM1.
CAUSE
1. In environments where the listener is not run in the same ORACLE_HOME where the database resides, the listener owner (including SCAN listener) may not be able to access the oracle binary in the database home. This is common in RAC or whenever a GRID_HOME and a database ORACLE_HOME are installed.
As listener owner:
$ ls -l $RDBMS_HOME/bin/oracle
ls: /home/oracle/app/oracle/product/11.2/db/bin/oracle: Permission denied
2. Oracle binary in database home has wrong permission:
ls -l $RDBMS_HOME/bin/oracle
-rwxr-x--x 1 oracle asmadmin 184286251 Aug 9 16:25 /home/oracle/app/oracle/product/11.2/db/bin/oracle
The permission "-rwxr-x--x" is wrong as it's missing suid bit, oracle binary should have permission of 6751:
-rwsr-s--x 1 oracle asmadmin 184286251 Aug 9 16:25 /home/oracle/app/oracle/product/11.2/db/bin/oracle
Note: If Job Role Separation is in place, the group will be <asmadmin>, otherwise it will be <oinstall>
3. File System for database home does not support setuid/suid or has nosetuid/nosuid set:
mount| grep <mount_point_of_ORACLE_HOME>
/home/oracle on /dev/dsk/diskoracle read/write/nosuid..
4. RDBMS_HOME/lib has wrong ownership/permission:
As listener owner:
$ ls -l $RDBMS_HOME/lib
ls: /home/oracle/app/oracle/product/11.2/db/lib: Permission denied
5. Another cause may be permissions on the RDBMS Directory structure or Home directory which needs to be accessed by the CRS user.
Check that the RDBMS $ORACLE_HOME is set to 755.
This can be seen from an OS trace such as strace or truss when using it to trace the CRS user running the "oracle" executable which fails with the "Permission denied" error.
Also:
a) Log in as the "GRID" user on each node, and issue the following (on each directory under the RDBMS Home) :-
[grid@orcl002:+ASM2 ~]$ ls -al /home/oracle/app/oracle
ls: cannot open directory /u01/app/oracle: Permission denied
***NOTE: the Oracle directory has 700 for the permissions, which should be changed to 755:
Current (incorrect) -->
[grid@orcl002:+ASM2 ~]$ ll /home/oracle/app
drwx------. 8 oracle oinstall 4096 Oct 12 08:38 oracle
Should be (correct) -->
[grid@orcl002:+ASM2 ~]$ ll /home/oracle/app
drwxr-xr-x. 8 oracle oinstall 4096 Oct 12 08:38 oracle
b) Likewise the /product directory has 700 perms, so change to 755 -->
[grid@orcl002:+ASM2 ~]$ ls -al /home/oracle/app/oracle/product
ls: cannot open directory /u01/app/oracle/product: Permission denied
Current (incorrect) -->
[grid@orcl002:+ASM2 ~]$ ls -al /home/oracle/app/oracle
drwx------. 3 oracle oinstall 4096 Oct 12 08:58 product
Should be (correct) -->
[grid@orcl002:+ASM2 ~]$ ls -al /u01/app/oracle
drwxr-xr-x. 3 oracle oinstall 4096 Oct 12 08:58 product
c) Now a connection should work:
$ sqlplus system/<pwd>@'(description=(address=(protocol=tcp)(host=orcl002)(port=1521))(connect_data=(server=dedicated)(service_name=ORCL)))'
SQL>
SOLUTION
Solution is to make sure file system for database home has setuid/suid set, database binary($RDBMS_HOME/bin/oracle) has correct ownership and permission, and listener owner is able to access database oracle binary (as listener owner, "ls -l $RDBMS_HOME/bin/oracle" will tell)
If its Job Role Separation environment, please refer to the following document:
Oracle? Grid Infrastructure
Installation Guide
11g Release 2 (11.2)
Oracle ASM Job Role Separation Option with SYSASM
REFERENCES
NOTE:422173.1
- Local SQL*Plus Connection and DBCA Fails With: ORA-12547: TNS:Lost Contact
NOTE:975457.1
- How to Troubleshoot Connectivity Issue with 11gR2 SCAN Name
NOTE:970619.1
- ORA-12545 or ORA-12537 While Connecting to RAC through SCAN name
1.6.1.3 TNS Listener Crash with Core Dump (文档 ID 549932.1)
In this Document
| Symptoms |
| Cause |
| Solution |
| References |
APPLIES TO:
Oracle Net Services - Version 10.2.0.1 to 10.2.0.4 [Release 10.2]
Generic UNIX
***Checked for relevance on 6-JUL-2016***
SYMPTOMS
- There may be heavy load on the CPU shooting up to 100%.
- The number of sessions in the database is well below the upper or maximum limit defined in the parameter file.
- The listener crashes suddenly during this heavy CPU load generating the core.
- (Optional) Listener.Ora has SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF.
Listener Log:
-------------
.....
.....
19-NOV-2007 13:40:49 * (CONNECT_DATA=(SID=ORAC)(CID=(PROGRAM=C:\pegasos\te\usys\bin\uniface.exe)(HOST=TERVI-NB179)(USER=kjokioja))) * (ADDRESS= (PROTOCOL=tcp)(HOST=10.12.152.5)(PORT=1670)) * establish * ORAC * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12571: TNS:packet writer failure
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
Linux Error: 104: Connection reset by peer
19-NOV-2007 13:40:49 * (CONNECT_DATA=(SID=ORAC)(CID=(PROGRAM=C:\pegaos\te\usys\bin\uniface.exe)(HOST=TERVI-0184A)(USER=paitasal))) * (ADDRESS=(PROTO COL=tcp)(HOST=10.12.176.136)(PORT=1574)) * establish * ORAC * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
.........
........
The Operating system log (/var/log/messages) may show the following :
tnslsnr[5841]: segfault at 0000000000000018 rip 0000003eab66854d rsp 0000007fbfff9230 error 4
tnslsnr[6469]: segfault at 0000000000000018 rip 0000003eab66854d rsp 0000007fbfff9420 error 4
tnslsnr[7375]: segfault at 0000000000000018 rip 0000003eab668bb3 rsp 0000007fbfff9c70 error 4
Gdb on the core file generated shows the following stack :
#gdb /home/oracle/db_1/bi/tnslsnr core.7375 Core was generated by `/opt/oracle/ora102/bin/tnslsnr LISTENER -inherit'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /opt/oracle/ora102/lib/libclntsh.so.10.1...(no debugging symbols found)...done.
........
.........
(gdb) bt
#0 0x00000032b7468bb3 in _int_free () from /lib64/tls/libc.so.6
#1 0x00000032b74691f6 in free () from /lib64/tls/libc.so.6
#2 0x000000000040f01f in nsglhe ()
#3 0x00000000004114e9 in nsglma ()
#4 0x00000000004061cb in main ()
(gdb) where
#0 0x00000032b7468bb3 in _int_free () from /lib64/tls/libc.so.6
#1 0x00000032b74691f6 in free () from /lib64/tls/libc.so.6
#2 0x000000000040f01f in nsglhe ()
#3 0x00000000004114e9 in nsglma ()
#4 0x00000000004061cb in main ()
The core indicates that the program terminated with signal 11, Segmentation fault .
SIGSEGV is reported for improper memory handling .The default action for a program upon receiving
SIGSEGV is abnormal termination. This action will end the process.
The virtual memory stats (vmstat) output may show huge paging/swapping activity .
For Example:
-------------
$vmstat 5 7 The si and so column under the swap section suggests the amount of memory swapped in from disk (/s)and amount of memory swapped to disk (/s) respectively.
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
2 0 0 27124 3940 1160 74528 0 1304 956 5360 272 191 51 21 98
3 0 0 27080 3756 1180 72580 0 260 2552 388 218 429 90 10 89
14 2 1 26808 5096 1188 69868 84 1108 2016 9064 490 567 59 22 96
4 0 0 25548 5912 1192 73032 0 0 436 0 478 736 50 50 0
5 0 0 25548 3940 1192 73548 0 0 1560 0 301 385 93 7 0
1 1 1 25548 3336 1192 71800 8 176 2848 432 258 147 91 9 88
1 0 0 25544 4124 1200 70480 116 60 836 60 171 200 97 3 92
Note: You may also use the top command to check the system memory usage.
CAUSE
Extensive paging/swapping activity is a clear indication that the system is running out of the physical memory.
SOLUTION
Solution :
1. Increase the physical memory of the system.
OR
2. Apply the Patch 6139856 for unpublished Bug 6139856 if available for your platform.
OR
3. Configure Hugepages on the OS. Ref : Note 361323.1
A Note on HugePages:
Hugepages is a mechanism that allows the Linux kernel to utilise the multiple page size capabilities of modern hardware architectures. Its important to know that utilising a huge amount of physical memory with the default page size consumes the TLB and adds processing overhead. The Linux kernel is able to set aside a portion of physical memory to be able be addressed using a larger page size. Since the page size is higher, there will be less overhead managing the pages with the TLB. In the Linux 2.6 series of kernels, hugepages is enabled using the CONFIG_HUGETLB_PAGE feature when the kernel is built. Systems with large amount of memory can be configured to utilise the memory more efficiently by setting aside a portion dedicated for hugepages. The actual size of the page is dependent on the system architecture. A typical x86 system will have a Huge Page Size of 2048 kBytes. The huge page size may be found by looking at the /proc/meminfo :
# cat /proc/meminfo |grep Hugepagesize Hugepagesize: 2048 kB
For more on configuring Hugepages please refer Note 361323.1
REFERENCES
BUG:6752308
- LISTENER DIED BY SEGFAULT AFTER TNS ERROR
NOTE:361323.1
- HugePages on Linux: What It Is... and What It Is Not...
1.6.2 博客
潇湘隐者：http://www.cnblogs.com/kerrycode/p/4164838.html
最近一周，有一台ORACLE数据库服务器的监听服务在凌晨2点过几分的时间点突然崩溃，以前从没有出现过此类情况，但是最近一周出现了两次这种情况,检查时发现了如下一些信息：
$ lsnrctl services
LSNRCTL for Linux: Version 10.2.0.4.0 - Production on 12-DEC-2014 08:22:34
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=ceglnx01)(PORT=1521)))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
Linux Error: 111: Connection refused
检查监听服务的日志信息（/u01/app/oracle/product/10.2.0/db_1/network/log/listener.log)，发现如下信息
第一次错误信息截图
08-DEC-2014 02:07:41 * (CONNECT_DATA=(SERVICE_NAME=epps)(CID=(PROGRAM=D:\Tasks\FGIS2MES\CEK\gmt_auto.exe)(HOST=CEGWEB1)(USER=cegadmin))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.21.34)(PORT=4419)) * establish * epps * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
第二次错误信息截图
在metalink上查到ID 550859.1，出现Linux Error: 32: Broken pipe这个错误的原因大概有下面一些因素导致：
Cause:
The error 32 indicates the communication has been broken while the listener is trying to hand off the client connection to the server process or dispatcher process.
Action:
1. One of reason would be processes parameter being low, and can be verified by the v$resource_limit view.
2. In Shared Server mode, check the 'lsnrctl services' output and see if the dispatcher has refused any connections, if so, then consider increasing the number of dispatchers.
3. Check the alert log for any possible errors.
4. Memory resource is also another cause for this issue. Check the swap, memory usage of the OS.
1：错误原因之一：processes参数的值偏低
关于v$resource_limit，如下所示
Column | Datatype | Description | |
RESOURCE_NAME | VARCHAR2(30) | 资源名 | Name of the resource |
CURRENT_UTILIZATION | NUMBER | 资源的当前使用量 | Number of (resources, locks, or processes) currently being used |
MAX_UTILIZATION | NUMBER | 实例启动以来，资源使用达到的最大值 | Maximum consumption of this resource since the last instance start-up |
INITIAL_ALLOCATION | VARCHAR2(10) | 初始化值，一般等于limit_value | Initial allocation. This will be equal to the value specified for the resource in the initialization parameter file (UNLIMITED for infinite allocation). |
LIMIT_VALUE | VARCHAR2(10) | 系统设置的资源值 | Unlimited for resources and locks. This can be greater than the initial allocation value (UNLIMITED for infinite limit). |
如下所示，我们可以发现自从实例启动以来，processes的最大值为152，而LIMIT_VALUE的值为170，所以可以排除这个原因导致上述错误。
SQL> select * from v$resource_limit;
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_ALLOCATION LIMIT_VALUE
--------------------- ------------------- --------------- ------------------ ------------
processes 113 152 170 170
sessions 115 154 192 192
enqueue_locks 57 117 2480 2480
enqueue_resources 40 86 1064 UNLIMITED
ges_procs 0 0 0 0
ges_ress 0 0 0 UNLIMITED
ges_locks 0 0 0 UNLIMITED
ges_cache_ress 0 0 0 UNLIMITED
ges_reg_msgs 0 0 0 UNLIMITED
ges_big_msgs 0 0 0 UNLIMITED
ges_rsv_msgs 0 0 0 0
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_ALLOCATION LIMIT_VALUE
--------------------- ------------------- --------------- ------------------ ------------
gcs_resources 0 0 0 0
gcs_shadows 0 0 0 0
dml_locks 0 76 844 UNLIMITED
temporary_table_locks 0 3 UNLIMITED UNLIMITED
transactions 2 12 211 UNLIMITED
branches 0 1 211 UNLIMITED
cmtcallbk 0 1 211 UNLIMITED
sort_segment_locks 39 131 UNLIMITED UNLIMITED
max_rollback_segments 11 11 211 65535
max_shared_servers 1 1 UNLIMITED UNLIMITED
parallel_max_servers 0 0 0 3600
22 rows selected.
SQL>
2： 如下所示，shared_servers的值大于1,服务器是共享模式
客户端连接数据库都是专用服务器模式dedicated server connection，如下所示
lsnrctl services 查看时并没有发现dispatcher has refused any connections，所以也可以排除dispatchers数量偏少的原因。这个如下截图所示
3: 关于内存资源不足会导致该错误，如下所示，服务器RAM 16G， 物理内存基本使用完，但是Swap基本上没有使用多少，有点嫌疑，但是还是没有明显的证据。
查看系统日志messages，如下所示，第一次在02:07有一条错误记录，查看了一些资料后，判定应该是由内存访问越界造成的。这个倒是一个支持内存不足导致监听服务错误的有力证据。
[root@ceglnx01 log]# more /var/log/messages
Dec 7 04:02:13 ceglnx01 syslogd 1.4.1: restart.
Dec 8 02:07:41 ceglnx01 kernel: tnslsnr[8040]: segfault at 18 ip 0000003aee8705d5 sp 00007fff010a07f0 error 4 in libc-2.5.so[3aee80
0000+14e000]
Dec 8 07:53:22 ceglnx01 avahi-daemon[3706]: Invalid query packet.
Dec 8 07:54:02 ceglnx01 last message repeated 7 times
Dec 8 08:12:18 ceglnx01 avahi-daemon[3706]: Invalid query packet.
Dec 8 08:20:16 ceglnx01 last message repeated 9 times
第二次错误信息，也是发生在凌晨2:07，具体错误信息如下所示：
Dec 9 02:10:51 ceglnx01 kernel: INFO: task gdb:17053 blocked for more than 120 seconds.
Dec 9 02:10:51 ceglnx01 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 9 02:10:51 ceglnx01 kernel: gdb D ffff880427d52840 0 17053 17019 0x00000080
Dec 9 02:10:51 ceglnx01 kernel: ffff8800bbb1dd50 0000000000000086 ffff8800bbb1dd20 0000000000000202
Dec 9 02:10:51 ceglnx01 kernel: ffff880003f78800 ffff88008d93c6c0 ffff880003f78bd0 ffffffff81231b4a
Dec 9 02:10:51 ceglnx01 kernel: 0000000000004800 0000000000000100 ffff8800bbb1de00 7fffffffffffffff
Dec 9 02:10:51 ceglnx01 kernel: Call Trace:
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81231b4a>] ? cpumask_next_and+0x20/0x32
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff814527e9>] schedule_timeout+0x36/0xe7
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8104541f>] ? __enqueue_entity+0x79/0x7b
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81045684>] ? enqueue_entity+0x263/0x270
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8104367e>] ? need_resched+0x23/0x2d
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8145265b>] wait_for_common+0xb7/0x12c
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8104cf2f>] ? default_wake_function+0x0/0x19
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff810448c9>] ? task_rq_unlock+0x11/0x13
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81452773>] wait_for_completion+0x1d/0x1f
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81056ec5>] do_fork+0x2d0/0x339
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81456080>] ? do_page_fault+0x28a/0x299
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8101923b>] sys_vfork+0x25/0x27
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81012113>] stub_vfork+0x13/0x20
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81011db2>] ? system_call_fastpath+0x16/0x1b
Dec 9 02:10:51 ceglnx01 kernel: INFO: task gdb:17069 blocked for more than 120 seconds.
Dec 9 02:10:51 ceglnx01 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 9 02:10:51 ceglnx01 kernel: gdb D 0000000000000000 0 17069 17022 0x00000080
Dec 9 02:10:51 ceglnx01 kernel: ffff88008d93fd50 0000000000000082 0000000000000000 0000000000000202
Dec 9 02:10:51 ceglnx01 kernel: ffff88008d93c6c0 ffffffff81aa84c0 ffff88008d93ca90 000000054227a93b
Dec 9 02:10:51 ceglnx01 kernel: 0000000000004c00 0000000000000000 0000000000000000 7fffffffffffffff
Dec 9 02:10:51 ceglnx01 kernel: Call Trace:
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff814527e9>] schedule_timeout+0x36/0xe7
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8104541f>] ? __enqueue_entity+0x79/0x7b
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81045684>] ? enqueue_entity+0x263/0x270
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8104367e>] ? need_resched+0x23/0x2d
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8145265b>] wait_for_common+0xb7/0x12c
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8104cf2f>] ? default_wake_function+0x0/0x19
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff810448c9>] ? task_rq_unlock+0x11/0x13
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81452773>] wait_for_completion+0x1d/0x1f
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81056ec5>] do_fork+0x2d0/0x339
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81456080>] ? do_page_fault+0x28a/0x299
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff8101923b>] sys_vfork+0x25/0x27
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81012113>] stub_vfork+0x13/0x20
Dec 9 02:10:51 ceglnx01 kernel: [<ffffffff81011db2>] ? system_call_fastpath+0x16/0x1b
Dec 9 02:12:51 ceglnx01 kernel: INFO: task gdb:17053 blocked for more than 120 seconds.
Dec 9 02:12:51 ceglnx01 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 9 02:12:51 ceglnx01 kernel: gdb D ffff880427d52840 0 17053 17019 0x00000080
Dec 9 02:12:51 ceglnx01 kernel: ffff8800bbb1dd50 0000000000000086 ffff8800bbb1dd20 0000000000000202
Dec 9 02:12:51 ceglnx01 kernel: ffff880003f78800 ffff88008d93c6c0 ffff880003f78bd0 ffffffff81231b4a
Dec 9 02:12:51 ceglnx01 kernel: 0000000000004800 0000000000000100 ffff8800bbb1de00 7fffffffffffffff
Dec 9 02:12:51 ceglnx01 kernel: Call Trace:
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81231b4a>] ? cpumask_next_and+0x20/0x32
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff814527e9>] schedule_timeout+0x36/0xe7
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8104541f>] ? __enqueue_entity+0x79/0x7b
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81045684>] ? enqueue_entity+0x263/0x270
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8104367e>] ? need_resched+0x23/0x2d
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8145265b>] wait_for_common+0xb7/0x12c
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8104cf2f>] ? default_wake_function+0x0/0x19
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff810448c9>] ? task_rq_unlock+0x11/0x13
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81452773>] wait_for_completion+0x1d/0x1f
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81056ec5>] do_fork+0x2d0/0x339
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81456080>] ? do_page_fault+0x28a/0x299
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8101923b>] sys_vfork+0x25/0x27
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81012113>] stub_vfork+0x13/0x20
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81011db2>] ? system_call_fastpath+0x16/0x1b
Dec 9 02:12:51 ceglnx01 kernel: INFO: task gdb:17069 blocked for more than 120 seconds.
Dec 9 02:12:51 ceglnx01 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 9 02:12:51 ceglnx01 kernel: gdb D 0000000000000000 0 17069 17022 0x00000080
Dec 9 02:12:51 ceglnx01 kernel: ffff88008d93fd50 0000000000000082 0000000000000000 0000000000000202
Dec 9 02:12:51 ceglnx01 kernel: ffff88008d93c6c0 ffffffff81aa84c0 ffff88008d93ca90 000000054227a93b
Dec 9 02:12:51 ceglnx01 kernel: 0000000000004c00 0000000000000000 0000000000000000 7fffffffffffffff
Dec 9 02:12:51 ceglnx01 kernel: Call Trace:
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff814527e9>] schedule_timeout+0x36/0xe7
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8104541f>] ? __enqueue_entity+0x79/0x7b
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81045684>] ? enqueue_entity+0x263/0x270
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8104367e>] ? need_resched+0x23/0x2d
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8145265b>] wait_for_common+0xb7/0x12c
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8104cf2f>] ? default_wake_function+0x0/0x19
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff810448c9>] ? task_rq_unlock+0x11/0x13
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81452773>] wait_for_completion+0x1d/0x1f
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81056ec5>] do_fork+0x2d0/0x339
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81456080>] ? do_page_fault+0x28a/0x299
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff8101923b>] sys_vfork+0x25/0x27
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81012113>] stub_vfork+0x13/0x20
Dec 9 02:12:51 ceglnx01 kernel: [<ffffffff81011db2>] ? system_call_fastpath+0x16/0x1b
Dec 9 02:14:51 ceglnx01 kernel: INFO: task gdb:17053 blocked for more than 120 seconds.
Dec 9 02:14:51 ceglnx01 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 9 02:14:51 ceglnx01 kernel: gdb D ffff880427d52840 0 17053 17019 0x00000080
Dec 9 02:14:51 ceglnx01 kernel: ffff8800bbb1dd50 0000000000000086 ffff8800bbb1dd20 0000000000000202
Dec 9 02:14:51 ceglnx01 kernel: ffff880003f78800 ffff88008d93c6c0 ffff880003f78bd0 ffffffff81231b4a
Dec 9 02:14:51 ceglnx01 kernel: 0000000000004800 0000000000000100 ffff8800bbb1de00 7fffffffffffffff
Dec 9 02:14:51 ceglnx01 kernel: Call Trace:
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81231b4a>] ? cpumask_next_and+0x20/0x32
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff814527e9>] schedule_timeout+0x36/0xe7
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8104541f>] ? __enqueue_entity+0x79/0x7b
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81045684>] ? enqueue_entity+0x263/0x270
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8104367e>] ? need_resched+0x23/0x2d
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8145265b>] wait_for_common+0xb7/0x12c
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8104cf2f>] ? default_wake_function+0x0/0x19
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff810448c9>] ? task_rq_unlock+0x11/0x13
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81452773>] wait_for_completion+0x1d/0x1f
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81056ec5>] do_fork+0x2d0/0x339
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81456080>] ? do_page_fault+0x28a/0x299
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8101923b>] sys_vfork+0x25/0x27
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81012113>] stub_vfork+0x13/0x20
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81011db2>] ? system_call_fastpath+0x16/0x1b
Dec 9 02:14:51 ceglnx01 kernel: INFO: task gdb:17069 blocked for more than 120 seconds.
Dec 9 02:14:51 ceglnx01 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 9 02:14:51 ceglnx01 kernel: gdb D 0000000000000000 0 17069 17022 0x00000080
Dec 9 02:14:51 ceglnx01 kernel: ffff88008d93fd50 0000000000000082 0000000000000000 0000000000000202
Dec 9 02:14:51 ceglnx01 kernel: ffff88008d93c6c0 ffffffff81aa84c0 ffff88008d93ca90 000000054227a93b
Dec 9 02:14:51 ceglnx01 kernel: 0000000000004c00 0000000000000000 0000000000000000 7fffffffffffffff
Dec 9 02:14:51 ceglnx01 kernel: Call Trace:
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff814527e9>] schedule_timeout+0x36/0xe7
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8104541f>] ? __enqueue_entity+0x79/0x7b
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81045684>] ? enqueue_entity+0x263/0x270
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8104367e>] ? need_resched+0x23/0x2d
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8145265b>] wait_for_common+0xb7/0x12c
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8104cf2f>] ? default_wake_function+0x0/0x19
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff810448c9>] ? task_rq_unlock+0x11/0x13
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81452773>] wait_for_completion+0x1d/0x1f
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81056ec5>] do_fork+0x2d0/0x339
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81456080>] ? do_page_fault+0x28a/0x299
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff8101923b>] sys_vfork+0x25/0x27
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81012113>] stub_vfork+0x13/0x20
Dec 9 02:14:51 ceglnx01 kernel: [<ffffffff81011db2>] ? system_call_fastpath+0x16/0x1b
Dec 9 02:16:51 ceglnx01 kernel: INFO: task gdb:17053 blocked for more than 120 seconds.
Dec 9 02:16:51 ceglnx01 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 9 02:16:51 ceglnx01 kernel: gdb D ffff880427d52840 0 17053 17019 0x00000080
Dec 9 02:16:51 ceglnx01 kernel: ffff8800bbb1dd50 0000000000000086 ffff8800bbb1dd20 0000000000000202
Dec 9 02:16:51 ceglnx01 kernel: ffff880003f78800 ffff88008d93c6c0 ffff880003f78bd0 ffffffff81231b4a
Dec 9 02:16:51 ceglnx01 kernel: 0000000000004800 0000000000000100 ffff8800bbb1de00 7fffffffffffffff
Dec 9 02:16:51 ceglnx01 kernel: Call Trace:
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff81231b4a>] ? cpumask_next_and+0x20/0x32
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff814527e9>] schedule_timeout+0x36/0xe7
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8104541f>] ? __enqueue_entity+0x79/0x7b
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff81045684>] ? enqueue_entity+0x263/0x270
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8104367e>] ? need_resched+0x23/0x2d
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8145265b>] wait_for_common+0xb7/0x12c
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8104cf2f>] ? default_wake_function+0x0/0x19
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff810448c9>] ? task_rq_unlock+0x11/0x13
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff81452773>] wait_for_completion+0x1d/0x1f
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff81056ec5>] do_fork+0x2d0/0x339
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff81456080>] ? do_page_fault+0x28a/0x299
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8101923b>] sys_vfork+0x25/0x27
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff81012113>] stub_vfork+0x13/0x20
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff81011db2>] ? system_call_fastpath+0x16/0x1b
Dec 9 02:16:51 ceglnx01 kernel: INFO: task gdb:17069 blocked for more than 120 seconds.
Dec 9 02:16:51 ceglnx01 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Dec 9 02:16:51 ceglnx01 kernel: gdb D 0000000000000000 0 17069 17022 0x00000080
Dec 9 02:16:51 ceglnx01 kernel: ffff88008d93fd50 0000000000000082 0000000000000000 0000000000000202
Dec 9 02:16:51 ceglnx01 kernel: ffff88008d93c6c0 ffffffff81aa84c0 ffff88008d93ca90 000000054227a93b
Dec 9 02:16:51 ceglnx01 kernel: 0000000000004c00 0000000000000000 0000000000000000 7fffffffffffffff
Dec 9 02:16:51 ceglnx01 kernel: Call Trace:
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff814527e9>] schedule_timeout+0x36/0xe7
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8104541f>] ? __enqueue_entity+0x79/0x7b
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff81045684>] ? enqueue_entity+0x263/0x270
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8104367e>] ? need_resched+0x23/0x2d
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8145265b>] wait_for_common+0xb7/0x12c
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff8104cf2f>] ? default_wake_function+0x0/0x19
Dec 9 02:16:51 ceglnx01 kernel: [<ffffffff810448c9>] ? task_rq_unlock+0x11/0x13
然后在metalink文档 ID 549932.1中发现如下一些信息
APPLIES TO:
Oracle Net Services - Version 10.2.0.1 to 11.1.0.7 [Release 10.2 to 11.1]
Generic UNIX
***Checked for relevance on 22-MAR-2013***
SYMPTOMS
· There may be heavy load on the CPU shooting up to 100%.
· The number of sessions in the database is well below the upper or maximum limit defined in the parameter file.
· The listener crashes suddenly during this heavy CPU load generating the core.
· (Optional) Listener.Ora has SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF.
Listener Log:
-------------
.....
.....
19-NOV-2007 13:40:49 * (CONNECT_DATA=(SID=ORAC)(CID=(PROGRAM=C:\pegasos\te\usys\bin\uniface.exe)(HOST=TERVI-NB179)(USER=kjokioja))) * (ADDRESS= (PROTOCOL=tcp)(HOST=10.12.152.5)(PORT=1670)) * establish * ORAC * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12571: TNS:packet writer failure
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
Linux Error: 104: Connection reset by peer
19-NOV-2007 13:40:49 * (CONNECT_DATA=(SID=ORAC)(CID=(PROGRAM=C:\pegaos\te\usys\bin\uniface.exe)(HOST=TERVI-0184A)(USER=paitasal))) * (ADDRESS=(PROTO COL=tcp)(HOST=10.12.176.136)(PORT=1574)) * establish * ORAC * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
.........
........
The Operating system log (/var/log/messages) may show the following :
tnslsnr[5841]: segfault at 0000000000000018 rip 0000003eab66854d rsp 0000007fbfff9230 error 4
tnslsnr[6469]: segfault at 0000000000000018 rip 0000003eab66854d rsp 0000007fbfff9420 error 4
tnslsnr[7375]: segfault at 0000000000000018 rip 0000003eab668bb3 rsp 0000007fbfff9c70 error 4
Gdb on the core file generated shows the following stack :
#gdb /home/oracle/db_1/bi/tnslsnr core.7375 Core was generated by `/opt/oracle/ora102/bin/tnslsnr LISTENER -inherit'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /opt/oracle/ora102/lib/libclntsh.so.10.1...(no debugging symbols found)...done.
........
.........
(gdb) bt
#0 0x00000032b7468bb3 in _int_free () from /lib64/tls/libc.so.6
#1 0x00000032b74691f6 in free () from /lib64/tls/libc.so.6
#2 0x000000000040f01f in nsglhe ()
#3 0x00000000004114e9 in nsglma ()
#4 0x00000000004061cb in main ()
(gdb) where
#0 0x00000032b7468bb3 in _int_free () from /lib64/tls/libc.so.6
#1 0x00000032b74691f6 in free () from /lib64/tls/libc.so.6
#2 0x000000000040f01f in nsglhe ()
#3 0x00000000004114e9 in nsglma ()
#4 0x00000000004061cb in main ()
The core indicates that the program terminated with signal 11, Segmentation fault .
SIGSEGV is reported for improper memory handling .The default action for a program upon receiving
SIGSEGV is abnormal termination. This action will end the process.
The virtual memory stats (vmstat) output may show huge paging/swapping activity .
For Example:
-------------
$vmstat 5 7 The si and so column under the swap section suggests the amount of memory swapped in from disk (/s)and amount of memory swapped to disk (/s) respectively.
procs memory swap io system cpu
r b w swpd free buff cache si so bi bo in cs us sy id
2 0 0 27124 3940 1160 74528 0 1304 956 5360 272 191 51 21 98
3 0 0 27080 3756 1180 72580 0 260 2552 388 218 429 90 10 89
14 2 1 26808 5096 1188 69868 84 1108 2016 9064 490 567 59 22 96
4 0 0 25548 5912 1192 73032 0 0 436 0 478 736 50 50 0
5 0 0 25548 3940 1192 73548 0 0 1560 0 301 385 93 7 0
1 1 1 25548 3336 1192 71800 8 176 2848 432 258 147 91 9 88
1 0 0 25544 4124 1200 70480 116 60 836 60 171 200 97 3 92
Note: You may also use the top command to check the system memory usage.
CAUSE
Extensive paging/swapping activity is a clear indication that the system is running out of the physical memory.
SOLUTION
Solution :
1. Increase the physical memory of the system.
OR
2. Apply the Patch 6139856 for unpublished Bug 6139856 if available for your platform.
OR
3. Configure Hugepages on the OS. Ref : Note 361323.1
A Note on HugePages:
Hugepages is a mechanism that allows the Linux kernel to utilise the multiple page size capabilities of modern hardware architectures. Its important to know that utilising a huge amount of physical memory with the default page size consumes the TLB and adds processing overhead. The Linux kernel is able to set aside a portion of physical memory to be able be addressed using a larger page size. Since the page size is higher, there will be less overhead managing the pages with the TLB. In the Linux 2.6 series of kernels, hugepages is enabled using the CONFIG_HUGETLB_PAGE feature when the kernel is built. Systems with large amount of memory can be configured to utilise the memory more efficiently by setting aside a portion dedicated for hugepages. The actual size of the page is dependent on the system architecture. A typical x86 system will have a Huge Page Size of 2048 kBytes. The huge page size may be found by looking at the /proc/meminfo :
# cat /proc/meminfo |grep Hugepagesize Hugepagesize: 2048 kB
For more on configuring Hugepages please refer Note 361323.1
REFERENCES
BUG:6752308 - LISTENER DIED BY SEGFAULT AFTER TNS ERROR
NOTE:361323.1 - HugePages on Linux: What It Is... and What It Is Not...
如上官方文档所示，有三个解决方案：
1： 增加系统物理内存
2： 打补丁Patch 6139856
3： 启用HugePage设置
鉴于当时操作系统有100多天没有重启过了，于是在2014-12-12 23：00重启了一下Linux服务器，到目前为止已经运行了3天，暂时没有出现这个错误。因为有可能一些内存泄露也会导致内存资源不足情况，例如，TNSListener Leaking Memory Using Dedicated Server (文档 ID 785742.1)。所以暂时没有实施上面方案2、3、想运行一段时间，验证一下自己的想法，如果还是出现这个错误，则尝试方案2、3、
[root@ceglnx01 ~]# who -b
system boot 2014-12-12 23:11
从另外一方面分析，在凌晨2点过几分出现这个错误，是因为，有两个比较大的作业在此时运行。消耗的服务器资源比较大，所以也从侧面验证了内存资源不足。
另外，在网上看到listener.log日志文件大于2G时，也可能出现这个问题。所以有时候也需要排查“监听日志文件过大可能也是导致监听器自己服务宕掉”。
http://blog.csdn.net/killvoon/article/details/49420485
oracle 10.2.0.4
一生产系统监听异常停止了，listener.log中报出如下错误：
TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
并且操作系统日志/var/log/messages中抛出类似如下错误：
tnslsnr[5841]: segfault at 0000000000000018 rip 0000003eab66854d rsp 0000007fbfff9230 error 4
且有一些cpu和内存负载过高，自己kill进程的信息
在metalink上有这篇文档：549932.1
版本：
Oracle Net Services - Version 10.2.0.1 to 11.1.0.7 [Release 10.2 to 11.1]
Generic UNIX
***Checked for relevance on 22-MAR-2013***
问题现象：
- There may be heavy load on the CPU shooting up to 100%.
- The number of sessions in the database is well below the upper or maximum limit defined in the parameter file.
- The listener crashes suddenly during this heavy CPU load generating the core.
- (Optional) Listener.Ora has SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF.
导致原因：
Extensive paging/swapping activity is a clear indication that the system is running out of the physical memory.
解决方法：
1. Increase the physical memory of the system.
OR
2. Apply the Patch 6139856 for unpublished Bug 6139856 if available for your platform.
OR
3. Configure Hugepages on the OS. Ref : Note 361323.1
--------------------------------------------------------------------------------------------------------------
算是oracle bug问题了，当操作系统物理内存不足，swap/page 耗尽，将会导致listener异常崩溃。
而且从操作系统日志中，可以看到linux自己kill 进程的信息(由于事后总结，且信息在内网内，权限有限，贴不出日志内容)。
所以我的理解就是，当操作系统物理内存居高不下，操作系统会自己杀掉一些他认为的空闲进程之类，而不巧，杀掉的恰好是oracle的监听进程，
从而导致监听异常崩溃。
之所以说恰好是监听进程，是因为在/var/log/messages中，看到之前也有杀掉oracle进程的信息，但当时监听并未停掉，所以怀疑当时杀掉的并不是oracle监听进程，可能是其他非本地进程。
我的解决参考： http://www.itpub.net/thread-1870217-1-1.html
论坛各位大拿，帮帮忙吧。
问题描述：
服务器断电重启后客户端无法登陆。数据库本地 sqlplus / as sysdba可以登录。
C:\Users\duchanglei>sqlplus username/password@jkxt21
SQL*Plus: Release 11.2.0.1.0 Production on Tue Jun 3 16:42:05 2014
Copyright (c) 1982, 2010, Oracle. All rights reserved.
ERROR:
ORA-12537: TNS:connection closed
环境：数据库
[oracle@jkxtrac1 bin]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Tue Jun 3 16:46:12 2014
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
环境：操作系统
[root@jkxtrac1 log]# lsb_release -a
LSB Version: :core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: RedHatEnterpriseServer
Description: Red Hat Enterprise Linux Server release 5.6 (Tikanga)
Release: 5.6
Codename: Tikanga
监听日志：
<msg time='2014-06-03T16:48:57.448+08:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='jkxtrac1'
host_addr='10.199.102.21'>
<txt>TNS-12518: TNS:listener could not hand off client connection
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
Linux Error: 32: Broken pipe
</txt>
</msg>
alert日志
没有相关信息，没有报任何错误。
操作系统日志：
[root@jkxtrac1 log]# tail -n50 messages
Jun 3 14:27:42 jkxtrac1 avahi-daemon[8081]: Registering new address record for 10.199.102.23 on eth0.
Jun 3 14:27:42 jkxtrac1 avahi-daemon[8081]: Withdrawing address record for 10.199.102.23 on eth0.
Jun 3 14:27:42 jkxtrac1 avahi-daemon[8081]: Registering new address record for 10.199.102.23 on eth0.
Jun 3 14:27:42 jkxtrac1 avahi-daemon[8081]: Withdrawing address record for 10.199.102.23 on eth0.
Jun 3 14:27:42 jkxtrac1 avahi-daemon[8081]: Registering new address record for 10.199.102.23 on eth0.
Jun 3 14:28:56 jkxtrac1 gconfd (root-10454): 正在启动(版本 2.14.0)，pid 10454 用户“root”
Jun 3 14:28:56 jkxtrac1 gconfd (root-10454): 地址“xml:readonly:/etc/gconf/gconf.xml.mandatory”解析为位于 0 的只读配置源
Jun 3 14:28:56 jkxtrac1 gconfd (root-10454): 地址“xml:readwrite:/root/.gconf”解析为位于 1 的可写入配置源
Jun 3 14:28:56 jkxtrac1 gconfd (root-10454): 地址“xml:readonly:/etc/gconf/gconf.xml.defaults”解析为位于 2 的只读配置源
Jun 3 14:28:58 jkxtrac1 gconfd (root-10454): 地址“xml:readwrite:/root/.gconf”解析为位于 0 的可写入配置源
Jun 3 14:28:58 jkxtrac1 hcid[7308]: Default passkey agent (:1.6, /org/bluez/applet) registered
Jun 3 14:28:58 jkxtrac1 pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0 Not Found
Jun 3 14:28:58 jkxtrac1 last message repeated 2 times
Jun 3 14:28:59 jkxtrac1 nm-system-settings: Loaded plugin ifcfg-rh: (c) 2007 - 2008 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
Jun 3 14:28:59 jkxtrac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-lo ...
Jun 3 14:28:59 jkxtrac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth1 ...
Jun 3 14:28:59 jkxtrac1 nm-system-settings: ifcfg-rh: read connection 'System eth1'
Jun 3 14:28:59 jkxtrac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-usb0 ...
Jun 3 14:28:59 jkxtrac1 nm-system-settings: ifcfg-rh: read connection 'System usb0'
Jun 3 14:28:59 jkxtrac1 nm-system-settings: ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth0 ...
Jun 3 14:28:59 jkxtrac1 nm-system-settings: ifcfg-rh: read connection 'System eth0'
Jun 3 14:29:01 jkxtrac1 pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0 Not Found
Jun 3 14:39:53 jkxtrac1 kernel: qla2xxx 0000:8b:00.1: scsi(4:1:3): Abort command issued -- 1 1fe 2002.
Jun 3 14:53:04 jkxtrac1 kernel: qla2xxx 0000:8b:00.1: scsi(4:1:3): Abort command issued -- 1 34f 2002.
Jun 3 15:00:18 jkxtrac1 CLSD: The clock on host jkxtrac1 has been updated by the Cluster Time Synchronization Service to be synchronous with the mean cluster time.
Jun 3 15:32:43 jkxtrac1 CLSD: The clock on host jkxtrac1 has been updated by the Cluster Time Synchronization Service to be synchronous with the mean cluster time.
Jun 3 15:49:19 jkxtrac1 scim-bridge: The lockfile is destroied
Jun 3 15:49:19 jkxtrac1 scim-bridge: Cleanup, done. Exitting...
Jun 3 16:03:49 jkxtrac1 CLSD: The clock on host jkxtrac1 has been updated by the Cluster Time Synchronization Service to be synchronous with the mean cluster time.
Jun 3 16:14:00 jkxtrac1 kernel: qla2xxx 0000:8b:00.1: scsi(4:1:3): Abort command issued -- 1 cd7 2002.
Jun 3 16:28:59 jkxtrac1 scim-bridge: Failed to open the panel socket
Jun 3 16:29:00 jkxtrac1 scim-bridge: Failed to open the panel socket
Jun 3 16:29:00 jkxtrac1 scim-bridge: Panel client has not yet been prepared
Jun 3 16:29:00 jkxtrac1 last message repeated 3 times
Jun 3 16:29:00 jkxtrac1 scim-bridge: The lockfile is destroied
Jun 3 16:29:00 jkxtrac1 scim-bridge: Cleanup, done. Exitting...
Jun 3 16:29:00 jkxtrac1 Cleanup, done. Exitting...
Jun 3 16:29:27 jkxtrac1 gconfd (root-10454): GConf 服务器不在使用，正在关闭。
Jun 3 16:29:27 jkxtrac1 gconfd (root-10454): 退出
Jun 3 16:30:43 jkxtrac1 kernel: scim-launcher[10521] trap stack segment rip:2b38d4ea70f1 rsp:7fffacbf26f0 error:0
Jun 3 16:32:13 jkxtrac1 gconfd (root-1975): 正在启动(版本 2.14.0)，pid 1975 用户“root”
Jun 3 16:32:13 jkxtrac1 gconfd (root-1975): 地址“xml:readonly:/etc/gconf/gconf.xml.mandatory”解析为位于 0 的只读配置源
Jun 3 16:32:13 jkxtrac1 gconfd (root-1975): 地址“xml:readwrite:/root/.gconf”解析为位于 1 的可写入配置源
Jun 3 16:32:13 jkxtrac1 gconfd (root-1975): 地址“xml:readonly:/etc/gconf/gconf.xml.defaults”解析为位于 2 的只读配置源
Jun 3 16:32:14 jkxtrac1 pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0 Not Found
Jun 3 16:32:14 jkxtrac1 last message repeated 2 times
Jun 3 16:32:14 jkxtrac1 gconfd (root-1975): 地址“xml:readwrite:/root/.gconf”解析为位于 0 的可写入配置源
Jun 3 16:32:14 jkxtrac1 hcid[7308]: Default passkey agent (:1.18, /org/bluez/applet) registered
Jun 3 16:32:17 jkxtrac1 pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0 Not Found
Jun 3 16:34:54 jkxtrac1 CLSD: The clock on host jkxtrac1 has been updated by the Cluster Time Synchronization Service to be synchronous with the mean cluster time.
网络上说资源问题，我的资源很多啊：
top - 16:53:12 up 2:28, 2 users, load average: 0.21, 0.29, 0.27
Tasks: 665 total, 2 running, 662 sleeping, 0 stopped, 1 zombie
Cpu(s): 0.7%us, 0.1%sy, 0.0%ni, 99.0%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 32889308k total, 5147440k used, 27741868k free, 181984k buffers
Swap: 34933332k total, 0k used, 34933332k free, 3341088k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2154 root 15 0 328m 19m 10m R 20.7 0.1 0:35.01 gnome-terminal
471 root 10 -5 0 0 0 S 0.9 0.0 0:36.27 kacpid
5947 root 15 0 13160 1568 828 R 0.7 0.0 0:00.58 top
8764 grid 15 0 245m 31m 12m S 0.7 0.1 0:15.21 gipcd.bin
9342 grid 15 0 1323m 57m 40m S 0.7 0.2 0:48.72 oracle
7476 root 15 0 3824 600 496 S 0.5 0.0 0:06.27 acpid
8723 grid 15 0 306m 37m 16m S 0.5 0.1 0:29.02 oraagent.bin
8763 root 16 0 292m 35m 15m S 0.5 0.1 0:35.45 orarootagent.bi
9615 root 15 0 272m 25m 14m S 0.5 0.1 0:42.74 orarootagent.bi
7036 root 10 -5 0 0 0 S 0.2 0.0 0:07.41 kondemand/9
7042 root 10 -5 0 0 0 S 0.2 0.0 0:03.46 kondemand/15
7050 root 10 -5 0 0 0 S 0.2 0.0 0:00.06 kondemand/23
8750 grid 15 0 174m 25m 11m S 0.2 0.1 0:04.80 gpnpd.bin
8798 root RT 0 249m 92m 56m S 0.2 0.3 0:04.35 cssdmonitor
9019 root 17 0 241m 22m 10m S 0.2 0.1 0:02.35 octssd.bin
9346 grid 15 0 1314m 30m 21m S 0.2 0.1 0:02.10 oracle
30771 oracle 15 0 12.8g 51m 36m S 0.2 0.2 0:09.80 oracle
30955 oracle 15 0 12.8g 42m 39m S 0.2 0.1 0:01.83 oracle
SQL> select * from v$resource_limit;
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_ALLOCATION LIMIT_VALUE
------------------------------ ------------------- --------------- ---------------------------------------- ----------------------------------------
processes 51 54 1000 1000
sessions 59 64 1536 1536
enqueue_locks 39 52 19523 19523
enqueue_resources 36 36 6976 UNLIMITED
ges_procs 47 49 1001 1001
ges_ress 9448 9448 32571 UNLIMITED
ges_locks 4771 5092 49133 UNLIMITED
ges_cache_ress 1649 1649 0 UNLIMITED
ges_reg_msgs 112 134 2730 UNLIMITED
ges_big_msgs 35 78 2730 UNLIMITED
ges_rsv_msgs 0 0 1000 1000
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_ALLOCATION LIMIT_VALUE
------------------------------ ------------------- --------------- ---------------------------------------- ----------------------------------------
gcs_resources 36726 36726 UNLIMITED UNLIMITED
gcs_shadows 36561 36563 UNLIMITED UNLIMITED
smartio_overhead_memory 0 0 0 UNLIMITED
smartio_buffer_memory 0 0 0 UNLIMITED
smartio_metadata_memory 0 0 0 UNLIMITED
smartio_sessions 0 0 0 UNLIMITED
dml_locks 0 0 6756 UNLIMITED
temporary_table_locks 0 0 UNLIMITED UNLIMITED
transactions 0 0 1689 UNLIMITED
branches 0 0 1689 UNLIMITED
cmtcallbk 0 2 1689 UNLIMITED
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_ALLOCATION LIMIT_VALUE
------------------------------ ------------------- --------------- ---------------------------------------- ----------------------------------------
max_rollback_segments 11 11 1689 65535
sort_segment_locks 0 1 UNLIMITED UNLIMITED
k2q_locks 0 0 3072 UNLIMITED
max_shared_servers 1 1 UNLIMITED UNLIMITED
parallel_max_servers 1 1 970 3600
27 rows selected.
重启数据库服务器2次，也没弄好、。
| 问题解决，结贴。 方法： 1、修改oracle.exe的权限为6751; [oracle@jkxtrac1 bin]$ ls -l ./oracle -rwxr-s--x 1 oracle asmadmin 239627031 Jan 21 18:59 ./oracle [oracle@jkxtrac1 bin]$ ls -l oracle -rwxr-s--x 1 oracle asmadmin 239627031 Jan 21 18:59 oracle [oracle@jkxtrac1 bin]$ chmod 6751 oracle [oracle@jkxtrac1 bin]$ ls -l oracle -rwsr-x--x 1 oracle asmadmin 239627031 Jan 21 18:59 oracle 2、重新用setasmgidwrap设置oracle.exe [root@jkxtrac1 ~]# cd /data/app/11.2.0/grid_1/bin/ [root@jkxtrac1 bin]# ./setasmgidwrap o=/home/oracle/app/oracle/product/11.2.0/dbhome_1/bin/oracle 感谢各位朋友的帮助；； |
