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Posted to notifications@iotdb.apache.org by "刘珍 (Jira)" <ji...@apache.org> on 2022/02/21 01:59:00 UTC

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

    [ https://issues.apache.org/jira/browse/IOTDB-2568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17495280#comment-17495280 ] 

刘珍 commented on IOTDB-2568:
---------------------------

1205pre6，已解决。

> "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
>            Assignee: Alima777
>            Priority: Critical
>              Labels: pull-request-available
>         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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