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