刘珍 created IOTDB-5324:
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Summary: [migrate region] 1rep1C4D ,after the region is migrated
successfully， wal cannot be deleted from destDataNode
Key: IOTDB-5324
URL: https://issues.apache.org/jira/browse/IOTDB-5324
Project: Apache IoTDB
Issue Type: Bug
Components: mpp-cluster
Affects Versions: master branch
Reporter: 刘珍
Assignee: Gaofei Cao
m_1229_0fedffd
问题描述
1副本1C4D集群，写入数据过程中，迁移region（Id=1 from ip4 to ip14）成功，但是目的节点的wal删不掉。
1.启动1副本1C4D集群
config/schema/data 是ratis/ratis/IoT协议
2.BM 写入数据（配置见附件）
9分钟后，迁移region
./sbin/start-cli.sh -h 172.20.70.4 -e "migrate region 1 from 2 to 3"
迁移成功，耗时20秒（2022-12-29 18:25:17,621-2022-12-29 18:25:37,676）
但是ip14的datanode
的regionId=1的wal删除不掉，导致大小为50GB，一直有限流的WARN日志，BM16个多小时不结束，理论上BM1个多小时就应该执行完成：
2022-12-30 10:14:07,669
[pool-25-IoTDB-ClientRPC-Processor-59$20221230_021337_10719_3.1.0] WARN
o.a.i.d.m.p.s.FragmentInstanceDispatcherImpl:243 - write locally failed.
TSStatus: TSStatus(code:606, message:Reject write because there are too many
requests need to process), message: Reject write because there are too many
requests need to process
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