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https://issues.apache.org/jira/browse/IOTDB-5655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yongzao Dan reassigned IOTDB-5655:
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Sprint: 2023-3-Catalyst (was: Catalyst-Backlog)
Assignee: Yongzao Dan (was: Xinyu Tan)
> [remove datanode] Performance needs to be optimized
> ---------------------------------------------------
>
> Key: IOTDB-5655
> URL: https://issues.apache.org/jira/browse/IOTDB-5655
> Project: Apache IoTDB
> Issue Type: Improvement
> Components: mpp-cluster
> Reporter: 刘珍
> Assignee: Yongzao Dan
> Priority: Major
> Attachments: image-2023-03-09-17-59-56-570.png, screenshot-1.png
>
>
> rc/1.1.0 0306_32f9db0
> IoT 3副本3C5D ，缩容1个datanode（写入不停），太慢，需优化：
> 下图显示单线程在执行，缩容节点有28个region，每个region 迁移成功耗时5-10 分钟：
> !image-2023-03-09-17-59-56-570.png!
> benchmark写入完成：2023-03-09 18:44:18
> ip72缩容完成：2023-03-09 19:06:01,284 [Thread-0] INFO
> o.a.i.d.s.IoTDBShutdownHook:116 - IoTDB exits. Jvm memory usage: 77 GB 501 MB
> 267 KB 432 B
> 开始缩容时间：2023-03-09 16:45:48,783 [main] INFO
> o.a.i.d.s.DataNodeServerCommandLine:103 - Starting to remove DataNode from
> cluster, parameter: -r, 192.168.10.72:6667
> 如果开始缩容，缩容节点就拒绝新的写入，应该能提升性能。
> !screenshot-1.png!
> 测试流程同https://issues.apache.org/jira/browse/IOTDB-5061
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