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Posted to notifications@iotdb.apache.org by "Haiming Zhu (Jira)" <ji...@apache.org> on 2022/10/28 03:12:00 UTC

[jira] [Commented] (IOTDB-4237) [ wal size ] enable_partition ，wal size is too large

    [ https://issues.apache.org/jira/browse/IOTDB-4237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17625401#comment-17625401 ] 

Haiming Zhu commented on IOTDB-4237:
------------------------------------

After fixing this issue, we can control the wal size in fixed size.

!new-size.png!

And the write performances are similar:

Before:

!old- performance.png!

After:

!new- performance.png!

> [ wal size ]  enable_partition ，wal size is too large
> -----------------------------------------------------
>
>                 Key: IOTDB-4237
>                 URL: https://issues.apache.org/jira/browse/IOTDB-4237
>             Project: Apache IoTDB
>          Issue Type: Improvement
>          Components: Core/WAL
>            Reporter: 刘珍
>            Assignee: Haiming Zhu
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: image-2022-08-25-16-20-10-918.png, insert_is_overflow.config.properties, new- performance.png, new-size.png, old- performance.png
>
>
> m_0825_5c62ac9 ， 新单机
>  enable_partition=true
>  partition_interval=86400
> 现在默认开启时间分区，可能会导致wal文件夹比较大（停止写入能降下去），需要优化配置，控制wal size不要过大
>  !image-2022-08-25-16-20-10-918.png! 
> 测试环境：
> 1. 192.168.10.64 机器 72核256GB
> 关合并，其余iotdb配置未修改。
> 启动NewIoTDB
> 2. bm运行周测配置 见附件
> 测试过程监测wal 文件夹大小



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