openldap能否同步两台AD openldap主从同步

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mob6454cc673226 2024-05-10 23:12:04
文章标签 openldap能否同步两台AD ldap epoll 数据库 ide 文章分类 机器学习人工智能
虽然主从配置提供了ldap的高可用性，但是当Master节点挂了的时候，还是需要做一些配置才能让Slave节点接管主节点的工作，但是多主的情况下，就可以直接替换主节点，甚至还可以使用keepalived来实现无缝切换。虽然官方给出的openldap 2.4有好几种replication的配置方法，但是以实际应用而言，还是syncrepl和mirror两种模式使用较多，所以这里来操作一下mirror mode。
环境说明：
直接在上一篇的syncrepl基础上进行，因为上一篇主从配置已经从最简单的开始，保证syncrepl能成功（你只需要准备一台CentOS 6.5，然后脚本安装openldap，然后根据文中的配置进行配置一下即可），所以这里就使用上次的环境进行操作。
1、配置节点ldapsrv01(双主的情况没有Master和Slave之分)
cp /etc/openldap/slapd.conf /etc/openldap/slapd.conf.ori
vi /etc/openldap/slapd.conf
[root@ldapsrv01 ~]# diff /etc/openldap/slapd.conf.bak2016-09-20 /etc/openldap/slapd.conf
35c35
< # modulepath /usr/lib64/openldap
---
> modulepath /usr/lib64/openldap
57c57
< # moduleload syncprov.la
---
> moduleload syncprov.la
135a136,145
> # master replia server start
> ServerID          1  "ldap://ldapsrv01.contoso.com"
> ServerID          2  "ldap://ldapsrv02.contoso.com"
> overlay           syncprov
> syncprov-checkpoint  10 1
> syncprov-sessionlog  100
> syncrepl          rid=1                    provider="ldap://ldapsrv01.contoso.com"                    type=refreshAndPersist    schemachecking=off    retry="5 5 30 +"                    searchbase="dc=contoso,dc=com"    bindmethod=simple    binddn="cn=admin,dc=contoso,dc=com"
> syncrepl          rid=2                    provider="ldap://ldapsrv02.contoso.com"    type=refreshAndPersist    schemachecking=off    retry="5 5 30 +"    searchbase="dc=contoso,dc=com"    bindmethod=simple    binddn="cn=admin,dc=contoso,dc=com"
> MirrorMode        on
> 
注：
注：这里对slapd.conf文件所做的修改如下：
     1）取消了modulepath /usr/lib64/openldap之前的注释
     2）取消了moduleload syncprov.la之前的注释
     3）在index nisMapName,nisMapEntry            eq,pres,sub这一行之后添加如下内容：
            # master replia server start
            ServerID          1  "ldap://ldapsrv01.contoso.com"
            ServerID          2  "ldap://ldapsrv02.contoso.com"
            overlay           syncprov
            syncprov-checkpoint  10 1
            syncprov-sessionlog  100
                    
                                searchbase="dc=contoso,dc=com"
                                bindmethod=simple                   
                                binddn="cn=admin,dc=contoso,dc=com"
                                credentials=123456
                                credentials=123456
            MirrorMode        on
 #千万不要复制我上面的配置，为了排版，我这里是换行而不是tab
rm -rf /etc/openldap/slapd.d/*
slaptest -u
slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d/
chown -R ldap. /etc/openldap/slapd.d/
service slapd restart
提示：如果执行slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d/出现以下警告，这是因为之前的syncrepl配置修改，只要结果是config file testing succeeded即可，不影响Mirror的配置。
[root@ldapsrv01 ~]# slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d/
57e0e92f bdb_db_open: DB_CONFIG for suffix "dc=contoso,dc=com" has changed.
57e0e92f Performing database recovery to activate new settings.
57e0e92f bdb_db_open: database "dc=contoso,dc=com": recovery skipped in read-only mode. Run manual recovery if errors are encountered.
config file testing succeeded
2、配置节点ldapsrv02
cp /etc/openldap/slapd.conf /etc/openldap/slapd.conf.ori
vi /etc/openldap/slapd.conf
vi /etc/openldap/slapd.conf
注：这里对slapd.conf文件所做的修改如下：
       1）取消了modulepath /usr/lib64/openldap之前的注释
       2）取消了moduleload syncprov.la之前的注释
       3）在index nisMapName,nisMapEntry            eq,pres,sub这一行之后添加如下内容：
  # master replia server start
            ServerID          1  "ldap://ldapsrv01.contoso.com"
            ServerID          2  "ldap://ldapsrv02.contoso.com"
            overlay           syncprov
            syncprov-checkpoint  10 1
            syncprov-sessionlog  100
                    provider="ldap://ldapsrv01.contoso.com"            type=refreshAndPersist    schemachecking=off    retry="5 5 30 +"            searchbase="dc=contoso,dc=com"    bindmethod=simple    binddn="cn=admin,dc=contoso,dc=com"
                    provider="ldap://ldapsrv02.contoso.com"    type=refreshAndPersist    schemachecking=off    retry="5 5 30 +"    searchbase="dc=contoso,dc=com"    bindmethod=simple    binddn="cn=admin,dc=contoso,dc=com"
            MirrorMode        on

rm -rf /etc/openldap/slapd.d/*
slaptest -u
slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d/
chown -R ldap. /etc/openldap/slapd.d/
service slapd restart
3、在节点1上进行测试
1）添加一个test用户，然后分别在两个节点上进行查询操作
[root@ldapsrv01 ~]# ldapadd -x -D "cn=admin,dc=contoso,dc=com" -w123456 -f test.ldif 
adding new entry "uid=test,ou=People,dc=contoso,dc=com"

[root@ldapsrv01 ~]# ldapsearch -x -H ldap://ldapsrv01.contoso.com -b "dc=contoso,dc=com" |grep uid=test
dn: uid=test,ou=People,dc=contoso,dc=com
[root@ldapsrv01 ~]# ldapsearch -x -H ldap://ldapsrv02.contoso.com -b "dc=contoso,dc=com" |grep uid=test
dn: uid=test,ou=People,dc=contoso,dc=com
2）删除test用户，然后分别在两个节点上进行查询操作
[root@ldapsrv01 ~]# ldapdelete -x -D "cn=admin,dc=contoso,dc=com" -w123456 "uid=test,ou=People,dc=contoso,dc=com"
[root@ldapsrv01 ~]# ldapsearch -x -H ldap://ldapsrv01.contoso.com -b "dc=contoso,dc=com" |grep uid=test
[root@ldapsrv01 ~]# ldapsearch -x -H ldap://ldapsrv02.contoso.com -b "dc=contoso,dc=com" |grep uid=test
4、在节点2上进行测试
1）添加一个test用户，然后分别在两个节点上进行查询操作
[root@ldapsrv02 ~]# ldapadd -x -D "cn=admin,dc=contoso,dc=com" -w123456 -f test.ldif
adding new entry "uid=test,ou=People,dc=contoso,dc=com"

[root@ldapsrv02 ~]# ldapsearch -x -H ldap://ldapsrv01.contoso.com -b "dc=contoso,dc=com" |grep uid=test
dn: uid=test,ou=People,dc=contoso,dc=com
[root@ldapsrv02 ~]# ldapsearch -x -H ldap://ldapsrv02.contoso.com -b "dc=contoso,dc=com" |grep uid=test
dn: uid=test,ou=People,dc=contoso,dc=com
2）删除test用户，然后分别在两个节点上进行查询操作
[root@ldapsrv02 ~]# ldapdelete -x -D "cn=admin,dc=contoso,dc=com" -w123456 "uid=test,ou=People,dc=contoso,dc=com"
[root@ldapsrv02 ~]# ldapsearch -x -H ldap://ldapsrv01.contoso.com -b "dc=contoso,dc=com" |grep uid=test
[root@ldapsrv02 ~]# ldapsearch -x -H ldap://ldapsrv02.contoso.com -b "dc=contoso,dc=com" |grep uid=test
两个节点上测试，数据可以双向同步，mirror模式配置成功。
注意：mirror不区分主从，每个节点都可以进行数据的增删改查，而syncrepl模式中，从节点是只读的，而无法进行数据的增删和修改等操作。
5、ldap同步日志记录
Sep 20 16:00:44 ldapsrv02 slapd[2214]: connection_resched: attempting closing conn=1005 sd=22
Sep 20 16:00:44 ldapsrv02 slapd[2214]: daemon: removing 22
Sep 20 16:00:44 ldapsrv02 slapd[2214]: conn=1005 fd=22 closed
Sep 20 16:00:44 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:00:44 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:00:44 ldapsrv02 slapd[2214]: 
Sep 20 16:00:44 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:00:44 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:00:44 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:13 ldapsrv02 slapd[2214]: 
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 busy
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: listen=8, new connection on 22
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: added 22r (active) listener=(nil)
Sep 20 16:01:13 ldapsrv02 slapd[2214]: conn=1006 fd=22 ACCEPT from IP=[::1]:42664 (IP=[::]:389)
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:13 ldapsrv02 slapd[2214]: 
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:13 ldapsrv02 slapd[2214]:  22r
Sep 20 16:01:13 ldapsrv02 slapd[2214]: 
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: read active on 22
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: conn=1006 op=0 BIND dn="cn=admin,dc=contoso,dc=com" method=128
Sep 20 16:01:13 ldapsrv02 slapd[2214]: conn=1006 op=0 BIND dn="cn=admin,dc=contoso,dc=com" mech=SIMPLE ssf=0
Sep 20 16:01:13 ldapsrv02 slapd[2214]: conn=1006 op=0 RESULT tag=97 err=0 text=
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:13 ldapsrv02 slapd[2214]: 
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:13 ldapsrv02 slapd[2214]:  22r
Sep 20 16:01:13 ldapsrv02 slapd[2214]: 
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: read active on 22
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: conn=1006 op=1 DEL dn="uid=test,ou=People,dc=contoso,dc=com"
Sep 20 16:01:13 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:13 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:13 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:13 ldapsrv02 slapd[2214]: 
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: conn=1006 op=1 RESULT tag=107 err=0 text=
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:13 ldapsrv02 slapd[2214]:  22r
Sep 20 16:01:13 ldapsrv02 slapd[2214]: 
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: read active on 22
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: conn=1006 op=2 UNBIND
Sep 20 16:01:13 ldapsrv02 slapd[2214]: connection_closing: readying conn=1006 sd=22 for close
Sep 20 16:01:13 ldapsrv02 slapd[2214]: connection_resched: attempting closing conn=1006 sd=22
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: removing 22
Sep 20 16:01:13 ldapsrv02 slapd[2214]: conn=1006 fd=22 closed
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:13 ldapsrv02 slapd[2214]: 
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:13 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:27 ldapsrv02 slapd[2214]: 
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 busy
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: listen=7, new connection on 22
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: added 22r (active) listener=(nil)
Sep 20 16:01:27 ldapsrv02 slapd[2214]: conn=1007 fd=22 ACCEPT from IP=192.168.49.139:58869 (IP=0.0.0.0:389)
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:27 ldapsrv02 slapd[2214]: 
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:27 ldapsrv02 slapd[2214]:  22r
Sep 20 16:01:27 ldapsrv02 slapd[2214]: 
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: read active on 22
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: conn=1007 op=0 BIND dn="" method=128
Sep 20 16:01:27 ldapsrv02 slapd[2214]: conn=1007 op=0 RESULT tag=97 err=0 text=
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:27 ldapsrv02 slapd[2214]: 
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:27 ldapsrv02 slapd[2214]:  22r
Sep 20 16:01:27 ldapsrv02 slapd[2214]: 
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: read active on 22
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: begin get_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]: PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: end get_filter 0
Sep 20 16:01:27 ldapsrv02 slapd[2214]: conn=1007 op=1 SRCH base="dc=contoso,dc=com" scope=2 deref=0 filter="(objectClass=*)"
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => bdb_filter_candidates
Sep 20 16:01:27 ldapsrv02 slapd[2214]: #011AND
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => bdb_list_candidates 0xa0
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => bdb_filter_candidates
Sep 20 16:01:27 ldapsrv02 slapd[2214]: #011PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= bdb_filter_candidates: id=-1 first=1 last=12
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= bdb_list_candidates: id=-1 first=1 last=12
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= bdb_filter_candidates: id=-1 first=1 last=12
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: => test_filter
Sep 20 16:01:27 ldapsrv02 slapd[2214]:     PRESENT
Sep 20 16:01:27 ldapsrv02 slapd[2214]: <= test_filter 6
Sep 20 16:01:27 ldapsrv02 slapd[2214]: conn=1007 op=1 SEARCH RESULT tag=101 err=0 nentries=10 text=
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:27 ldapsrv02 slapd[2214]: 
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:27 ldapsrv02 slapd[2214]:  22r
Sep 20 16:01:27 ldapsrv02 slapd[2214]: 
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: read active on 22
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: conn=1007 op=2 UNBIND
Sep 20 16:01:27 ldapsrv02 slapd[2214]: connection_closing: readying conn=1007 sd=22 for close
Sep 20 16:01:27 ldapsrv02 slapd[2214]: connection_resched: attempting closing conn=1007 sd=22
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: removing 22
Sep 20 16:01:27 ldapsrv02 slapd[2214]: conn=1007 fd=22 closed
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on 1 descriptor
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: activity on:
Sep 20 16:01:27 ldapsrv02 slapd[2214]: 
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=7 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=8 active_threads=0 tvp=zero
Sep 20 16:01:27 ldapsrv02 slapd[2214]: daemon: epoll: listen=9 active_threads=0 tvp=zero
https://blog.51cto.com/jerry12356/1854617
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