Examples with SSHException com.sohu.cache.exception.SSHException used on opensource projects

Example 1 with SSHException

use of com.sohu.cache.exception.SSHException in project cachecloud by sohutv.

the class SSHUtil method getMachineInfo.

/**
 * Get HostPerformanceEntity[cpuUsage, memUsage, load] by ssh.<br>
 * 方法返回前已经释放了所有资源，调用方不需要关心
 *
 * @param ip
 * @param userName
 * @param password
 * @throws Exception
 * @since 1.0.0
 */
public static MachineStats getMachineInfo(String ip, int port, String userName, String password) throws SSHException {
    if (StringUtil.isBlank(ip)) {
        try {
            throw new IllegalParamException("Param ip is empty!");
        } catch (IllegalParamException e) {
            throw new SSHException(e.getMessage(), e);
        }
    }
    port = IntegerUtil.defaultIfSmallerThan0(port, ConstUtils.SSH_PORT_DEFAULT);
    final MachineStats systemPerformanceEntity = new MachineStats();
    systemPerformanceEntity.setIp(ip);
    sshTemplate.execute(ip, port, userName, password, new SSHCallback() {

        public Result call(SSHSession session) {
            // 解析top命令
            session.executeCommand(COMMAND_TOP, new DefaultLineProcessor() {

                public void process(String line, int lineNum) throws Exception {
                    if (lineNum > 5) {
                        return;
                    }
                    if (1 == lineNum) {
                        // 第一行，通常是这样：
                        // top - 19:58:52 up 416 days, 30 min, 1 user, load average:
                        // 0.00, 0.00, 0.00
                        int loadAverageIndex = line.indexOf(LOAD_AVERAGE_STRING);
                        String loadAverages = line.substring(loadAverageIndex).replace(LOAD_AVERAGE_STRING, EMPTY_STRING);
                        String[] loadAverageArray = loadAverages.split(",");
                        if (3 == loadAverageArray.length) {
                            systemPerformanceEntity.setLoad(StringUtil.trimToEmpty(loadAverageArray[0]));
                        }
                    } else if (3 == lineNum) {
                        // 第三行通常是这样：
                        // , 0.0% sy, 0.0% ni, 100.0% id, 0.0% wa,
                        // 0.0% hi, 0.0% si
                        // redhat:%Cpu(s):  0.0 us
                        // centos7:Cpu(s): 0.0% us
                        double cpuUs = getUsCpu(line);
                        systemPerformanceEntity.setCpuUsage(String.valueOf(cpuUs));
                    }
                }
            });
            // 解析memory
            session.executeCommand(COMMAND_MEM, new LineProcessor() {

                private String totalMem;

                private String freeMem;

                private String buffersMem;

                private String cachedMem;

                public void process(String line, int lineNum) throws Exception {
                    if (line.contains(MEM_TOTAL)) {
                        totalMem = matchMemLineNumber(line).trim();
                    } else if (line.contains(MEM_FREE)) {
                        freeMem = matchMemLineNumber(line).trim();
                    } else if (line.contains(MEM_BUFFERS)) {
                        buffersMem = matchMemLineNumber(line).trim();
                    } else if (line.contains(MEM_CACHED)) {
                        cachedMem = matchMemLineNumber(line).trim();
                    }
                }

                public void finish() {
                    if (!StringUtil.isBlank(totalMem, freeMem, buffersMem)) {
                        Long totalMemLong = NumberUtils.toLong(totalMem);
                        Long freeMemLong = NumberUtils.toLong(freeMem);
                        Long buffersMemLong = NumberUtils.toLong(buffersMem);
                        Long cachedMemLong = NumberUtils.toLong(cachedMem);
                        Long usedMemFree = freeMemLong + buffersMemLong + cachedMemLong;
                        Double memoryUsage = 1 - (NumberUtils.toDouble(usedMemFree.toString()) / NumberUtils.toDouble(totalMemLong.toString()) / 1.0);
                        systemPerformanceEntity.setMemoryTotal(String.valueOf(totalMemLong));
                        systemPerformanceEntity.setMemoryFree(String.valueOf(usedMemFree));
                        DecimalFormat df = new DecimalFormat("0.00");
                        systemPerformanceEntity.setMemoryUsageRatio(df.format(memoryUsage * 100));
                    }
                }
            });
            // 统计磁盘使用状况
            /**
             * 内容通常是这样： Filesystem 容量 已用 可用 已用% 挂载点 /dev/xvda2 5.8G 3.2G 2.4G
             * 57% / /dev/xvda1 99M 8.0M 86M 9% /boot none 769M 0 769M 0%
             * /dev/shm /dev/xvda7 68G 7.1G 57G 12% /home /dev/xvda6 2.0G 36M
             * 1.8G 2% /tmp /dev/xvda5 2.0G 199M 1.7G 11% /var
             */
            session.executeCommand(COMMAND_DF_LH, new LineProcessor() {

                private Map<String, String> diskUsageMap = new HashMap<String, String>();

                public void process(String line, int lineNum) throws Exception {
                    if (lineNum == 1) {
                        return;
                    }
                    line = line.replaceAll(" {1,}", WORD_SEPARATOR);
                    String[] lineArray = line.split(WORD_SEPARATOR);
                    if (6 == lineArray.length) {
                        String diskUsage = lineArray[4];
                        String mountedOn = lineArray[5];
                        diskUsageMap.put(mountedOn, diskUsage);
                    }
                }

                public void finish() {
                    systemPerformanceEntity.setDiskUsageMap(diskUsageMap);
                }
            });
            return null;
        }
    });
    // 统计当前网络流量 @TODO
    Double traffic = 0.0;
    systemPerformanceEntity.setTraffic(traffic.toString());
    return systemPerformanceEntity;
}

Example 2 with SSHException

use of com.sohu.cache.exception.SSHException in project cachecloud by sohutv.

the class AppDataMigrateCenterImpl method showDataMigrateLog.

@Override
public String showDataMigrateLog(long id, int pageSize) {
    AppDataMigrateStatus appDataMigrateStatus = appDataMigrateStatusDao.get(id);
    if (appDataMigrateStatus == null) {
        return "";
    }
    String logPath = appDataMigrateStatus.getLogPath();
    String host = appDataMigrateStatus.getMigrateMachineIp();
    StringBuilder command = new StringBuilder();
    command.append("/usr/bin/tail -n").append(pageSize).append(" ").append(logPath);
    try {
        return SSHUtil.execute(host, command.toString());
    } catch (SSHException e) {
        logger.error(e.getMessage(), e);
        return "";
    }
}

Example 3 with SSHException

use of com.sohu.cache.exception.SSHException in project cachecloud by sohutv.

the class AppDataMigrateCenterImpl method createRemoteFile.

/**
 * 创建远程文件
 *
 * @param host
 * @param fileName
 * @param content
 */
public boolean createRemoteFile(String host, String fileName, String content) {
    /**
     * 1. 创建本地文件
     */
    // 确认目录
    String localAbsolutePath = MachineProtocol.TMP_DIR + fileName;
    File tmpDir = new File(MachineProtocol.TMP_DIR);
    if (!tmpDir.exists()) {
        if (!tmpDir.mkdirs()) {
            logger.error("cannot create /tmp/cachecloud directory.");
        }
    }
    Path path = Paths.get(MachineProtocol.TMP_DIR + fileName);
    // 将配置文件的内容写到本地
    BufferedWriter bufferedWriter = null;
    try {
        bufferedWriter = Files.newBufferedWriter(path, Charset.forName(MachineProtocol.ENCODING_UTF8));
        bufferedWriter.write(content);
    } catch (IOException e) {
        logger.error("write rmt file error, ip: {}, filename: {}, content: {}", host, fileName, content, e);
        return false;
    } finally {
        if (bufferedWriter != null) {
            try {
                bufferedWriter.close();
            } catch (IOException e) {
                logger.error(e.getMessage(), e);
            }
        }
    }
    /**
     * 2. 将配置文件推送到目标机器上
     */
    try {
        SSHUtil.scpFileToRemote(host, localAbsolutePath, ConstUtils.getRedisMigrateToolDir());
    } catch (SSHException e) {
        logger.error("scp rmt file to remote server error: ip: {}, fileName: {}", host, fileName, e);
        return false;
    }
    /**
     * 3. 删除临时文件
     */
    File file = new File(localAbsolutePath);
    if (file.exists()) {
        file.delete();
    }
    return true;
}

Example 4 with SSHException

use of com.sohu.cache.exception.SSHException in project new-cloud by xie-summer.

the class AppDataMigrateCenterImpl method showDataMigrateConf.

@Override
public String showDataMigrateConf(long id) {
    AppDataMigrateStatus appDataMigrateStatus = appDataMigrateStatusDao.get(id);
    if (appDataMigrateStatus == null) {
        return "";
    }
    String configPath = appDataMigrateStatus.getConfigPath();
    String host = appDataMigrateStatus.getMigrateMachineIp();
    String command = "cat " + configPath;
    try {
        return SSHUtil.execute(host, command);
    } catch (SSHException e) {
        logger.error(e.getMessage(), e);
        return "";
    }
}

Example 5 with SSHException

use of com.sohu.cache.exception.SSHException in project new-cloud by xie-summer.

the class AppDataMigrateCenterImpl method createRemoteFile.

/**
 * 创建远程文件
 *
 * @param host
 * @param fileName
 * @param content
 */
public boolean createRemoteFile(String host, String fileName, String content) {
    /**
     * 1. 创建本地文件
     */
    // 确认目录
    String localAbsolutePath = MachineProtocol.TMP_DIR + fileName;
    File tmpDir = new File(MachineProtocol.TMP_DIR);
    if (!tmpDir.exists()) {
        if (!tmpDir.mkdirs()) {
            logger.error("cannot create /tmp/cachecloud directory.");
        }
    }
    Path path = Paths.get(MachineProtocol.TMP_DIR + fileName);
    // 将配置文件的内容写到本地
    BufferedWriter bufferedWriter = null;
    try {
        bufferedWriter = Files.newBufferedWriter(path, Charset.forName(MachineProtocol.ENCODING_UTF8));
        bufferedWriter.write(content);
    } catch (IOException e) {
        logger.error("write rmt file error, ip: {}, filename: {}, content: {}", host, fileName, content, e);
        return false;
    } finally {
        if (bufferedWriter != null) {
            try {
                bufferedWriter.close();
            } catch (IOException e) {
                logger.error(e.getMessage(), e);
            }
        }
    }
    /**
     * 2. 将配置文件推送到目标机器上
     */
    try {
        SSHUtil.scpFileToRemote(host, localAbsolutePath, ConstUtils.getRedisMigrateToolDir());
    } catch (SSHException e) {
        logger.error("scp rmt file to remote server error: ip: {}, fileName: {}", host, fileName, e);
        return false;
    }
    /**
     * 3. 删除临时文件
     */
    File file = new File(localAbsolutePath);
    if (file.exists()) {
        file.delete();
    }
    return true;
}