[GitHub] [iotdb] JackieTien97 commented on issue #2641: What you can do when IoTDB has no response（IoTDB 无响应如何操作）

[GitBox <gi...@apache.org>]

JackieTien97 commented on issue #2641:
URL: https://github.com/apache/iotdb/issues/2641#issuecomment-773869071


   1. top命令查看iotdb进程当前的cpu负载与内存占用，截图留存，或以文字形式记录;
   
   2. jstack命令输出iotdb进程的线程运行信息，生成stack1.log文件；再次执行 jstack命令，生成stack2.log
   `jstack -l pid > stack1.log`
   `jstack -l pid > stack2.log`
   (pid用具体的iotdb进程号替换)
   
   3. 如果内存占用过高，使用jmap命令生成iotdb进程的堆栈信息(注意：若分配给iotdb进程的内存较大，此步耗时可能会很久，生成的文件可能较大，确保磁盘剩余空间充足)
   `jmap -dump:format=b,file=iotdb.phrof pid` 
   (pid用具体的iotdb进程号替换)


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