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Posted to notifications@iotdb.apache.org by "刘珍 (Jira)" <ji...@apache.org> on 2022/02/18 09:34:00 UTC

[jira] [Created] (IOTDB-2568) "show query processlist" is blocked

刘珍 created IOTDB-2568:
-------------------------

             Summary: "show query processlist" is blocked
                 Key: IOTDB-2568
                 URL: https://issues.apache.org/jira/browse/IOTDB-2568
             Project: Apache IoTDB
          Issue Type: Improvement
          Components: Core/Query
            Reporter: 刘珍
         Attachments: image-2022-02-18-17-31-13-155.png, q.sh, run.sh

1205 pre5：
多用户并发查询，并发查询线程数>16 （# concurrent_query_thread=16）
show query processlist会被阻塞，机器资源够用。
（性能）监控的命令，不应该被自己阻塞。

复现方法：
1. 机器  192.168.10.68
2. 数据 /data/liuzhen_test/1205_pre5下的data
3. 关合并
4. 100用户并发查询，脚本见附件，2个脚本放在$iotdb_dir下。
run.sh脚本运行后，cli执行
show query processlist

 !image-2022-02-18-17-31-13-155.png! 



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