Proxy server processes often die

[zhaogeyuan]

I use two proxy services, anyproxy and tinyproxy. They are deployed on 6 servers respectively, and the problem that the proxy process will die after running for a while. I use a java program to call youtube-dl through a shell command to download audio
` try {

            // 执行命令, 返回一个子进程对象（命令在子进程中执行）
            process[0] = Runtime.getRuntime().exec(cmd, null, dir);

            // 获取命令执行结果, 有两个结果: 正常的输出 和 错误的输出（PS: 子进程的输出就是主进程的输入）
            bufrIn[0] = new BufferedReader(new InputStreamReader(process[0].getInputStream(), "UTF-8"));
            bufrError[0] = new BufferedReader(new InputStreamReader(process[0].getErrorStream(), "UTF-8"));

            // 读取输出
            String line = null;
            while ((line = bufrIn[0].readLine()) != null) {
                result.append(line).append('\n');
            }
            while ((line = bufrError[0].readLine()) != null) {
                result.append(line).append('\n');
            }

            // 方法阻塞, 等待命令执行完成（成功会返回0）
            int code = process[0].waitFor();

        } catch (Exception e) {

            logger.error("thread pool run shell command fail.",e);

        }`