实验室最近在做的项目要做ubuntu系统监控,要获得系统的一些信息并返回给web服务器.
web服务器与ubuntu主机的通信我写的程序用的是socket,至于为什么不用java程序ssh到对应的主机上当初这个方案被否决了,只好专心写自己的socket.
系统的cpu信息的获得可以用cat /proc/cpuinfo
下面是我截取的命令执行部分结果
这里面有几个非常重要的参数
- processor 逻辑处理器的id。
- physical id 物理封装的处理器的id。
- core id 每个核心的id。
- cpu cores 位于相同物理封装的处理器中的内核数量。
- siblings 位于相同物理封装的处理器中的逻辑处理器的数量
系统内存的使用率我用的是free命令
总内存 已用内存 和剩余内存都可以得到 使用率的获得也就是用这几个参数做一些计算
系统的磁盘Io我用的是iostat -x -k 1 2 这里取得是第二次刷新的数据 原因是第一次的数据是从系统开机到现在的累计值 不是需求要得到的 这里截取命令的截取结果
各个参数的含义这里就不详细解释了 在网上都解释的很详细
网卡信息的采集 我用的是lspci
Ethernet controller 既是系统的网卡
系统的运行时间 用到的命令是cat /proc/uptime
第一个参数1188788.89既是系统运行了多少S
采集的命令 都知道了 接下来就是用java程序采集了 不多说 贴上自己写的部分代码 由于要用socket传给客户端 所以对字符都有一些分隔符处理 方便客户端对字符串解析
1 public static String getmachineinfo() throws IOException {
2 StringBuffer Machineinfo = new StringBuffer();
3 StringBuffer Machineio = new StringBuffer();
4 StringBuffer MachineUptime = new StringBuffer();
5 StringBuffer MachineCpu = new StringBuffer();
6 StringBuffer MachineNetworkcard = new StringBuffer();
7 StringBuffer MachineMemory = new StringBuffer();
8 StringBuffer MachineHostname = new StringBuffer();
9 double Machinerunningvm=0;
10 String[] cmd = new String[] { "iostat", "-x", "-k", "1", "2" };
11 Process process = Runtime.getRuntime().exec(cmd);
12 int count = 0;// 计数
13 double ioreadspeedsum = 0;// 统计实体机每个磁盘io的和
14 double iowritespeedsum = 0;
15 double ioreadnumsum = 0;
16 double iowritenumsum = 0;
17 LineNumberReader br = new LineNumberReader(new InputStreamReader(process.getInputStream()));
18 String line;
19 while ((line = br.readLine()) != null) {
20 String[] words = line.split("\\s+");
21 if (words.length > 3) {
22 if (words[0].equals("Device:"))// 用来判断取第二次刷新的数据
23 count += 1;
24 if (words[0].contains("sd") && count == 2)// 取第二次刷新的数据
25 // 获得Io信息并取得累加值
26 {
27 ioreadnumsum += Double.valueOf(words[3]);
28 iowritenumsum += Double.valueOf(words[4]);
29 ioreadspeedsum += Double.valueOf(words[5]);
30 iowritespeedsum += Double.valueOf(words[6]);
31 }
32 }
33 }
34 Machineio.append(ioreadnumsum + " " + iowritenumsum + " " + ioreadspeedsum + " " + iowritespeedsum + " ");
35 cmd = new String[] { "cat", "/proc/uptime" };
36 process = Runtime.getRuntime().exec(cmd);
37 br = new LineNumberReader(new InputStreamReader(process.getInputStream()));
38 if ((line = br.readLine()) != null) {
39 String[] words = line.split("\\s+");
40 MachineUptime.append(words[0] + " ");
41 }
42 ArrayList<String> cpuidjudge = new ArrayList<String>();
43 String cpuid = new String();
44 String cpumodelname = new String();
45 String cpucore = new String();
46 String cpusiblings = new String();
47 cmd = new String[] { "cat", "/proc/cpuinfo" };
48 process = Runtime.getRuntime().exec(cmd);
49 br = new LineNumberReader(new InputStreamReader(process.getInputStream()));
50 while ((line = br.readLine()) != null) {
51 String[] words = line.split("\\s+");
52 if (words.length > 1) {
53 if (words[0].equals("physical"))// 用来判断Physical id
54 {
55 cpuid = words[3];
56 }
57 if (words[0].equals("model") && words[1].equals("name"))// 用来判断cpu
58 // model
59 // name
60 {
61 cpumodelname = line.toString().replaceAll("model name :", "").replaceAll("\\s+", " ");
62 }
63 if (words[0].equals("siblings"))// 用来判断siblings
64 {
65 cpusiblings = words[2];
66 }
67 if (words[0].equals("cpu") && words[1].equals("cores"))// 用来判断cpu
68 // cores
69 {
70 cpucore = words[3];
71 if (!(cpuidjudge.contains(cpuid))) {
72 cpuidjudge.add(cpuid);
73 MachineCpu.append(cpuid + "-" + cpumodelname + "-" + cpusiblings + "-" + cpucore + "|");// 加的横杠和竖杠是为了客户端接收后对字符的分解处理
74 }
75 }
76 }
77
78 }
79 cmd = new String[] { "lspci" };
80 process = Runtime.getRuntime().exec(cmd);
81 br = new LineNumberReader(new InputStreamReader(process.getInputStream()));
82 while ((line = br.readLine()) != null) {
83 String[] words = line.split("\\s+");
84 if (words[1].equals("Ethernet") && words[2].contains("controller")) {// 用来判断网关
85 for (int i = 3; i < words.length; i++) {
86 MachineNetworkcard.append(words[i] + " ");
87 }
88 MachineNetworkcard.append("-");
89 }
90 }
91 cmd = new String[] { "free" };
92 process = Runtime.getRuntime().exec(cmd);
93 br = new LineNumberReader(new InputStreamReader(process.getInputStream()));
94 while ((line = br.readLine()) != null) {
95 String[] words = line.split("\\s+");
96 if (words[0].equals("Mem:"))// 用来判断内存
97 {
98 MachineMemory.append(words[1] + " " + words[2] + " " + words[3]);
99 }
100 }
101 cmd = new String[] { "hostname" };
102 process = Runtime.getRuntime().exec(cmd);
103 br = new LineNumberReader(new InputStreamReader(process.getInputStream()));
104 MachineHostname.append(br.readLine());
105 System.out.println(MachineHostname.toString());
106 cmd = new String[] { "virsh","list"};
107 process = Runtime.getRuntime().exec(cmd);
108 br = new LineNumberReader(new InputStreamReader(process.getInputStream()));
109 while ((line = br.readLine()) != null) {
110 String[] words = line.split("\\s+");
111 if (words.length>2&&words[3].contains("running"))// 用来判断
112 {
113 Machinerunningvm+=1;
114 }
115 }
116 Machineinfo.append(Machineio + "\n" + MachineUptime + "\n" + MachineCpu + "\n" + MachineNetworkcard+"\n"+MachineMemory+"\n"+MachineHostname+"\n"+Machinerunningvm);
117 return Machineinfo.toString();
118 }
暂时先写这么多吧