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https://issues.apache.org/jira/browse/IOTDB-5105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17641824#comment-17641824
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Jialin Qiao commented on IOTDB-5105:
------------------------------------
Reproduce:
Start 1C1D
Create some databases.
When you see the following log in ConfigNode, then adding a new ConfigNode will
fail.
2022-12-01 18:45:30,052 [pool-12-IoTDB-ConfigNodeRPC-Processor-4] INFO
o.a.i.c.m.ClusterSchemaManager:335 - [AdjustRegionGroupNum] The least number of
DataRegionGroups per Database is adjusted to: 4
> Can not register new confignode to cluster
> ------------------------------------------
>
> Key: IOTDB-5105
> URL: https://issues.apache.org/jira/browse/IOTDB-5105
> Project: Apache IoTDB
> Issue Type: Bug
> Components: Core/Cluster
> Reporter: Houliang Qi
> Priority: Critical
> Attachments: image-2022-12-01-17-58-05-668.png
>
>
> Hi, I found one bug when registering a new confignode to the cluster.
> when registering the new confignode to the cluster, the target confignode
> will check the
> _least_data_region_group_num_ , however, the parameter can auto-be adjusted
> in the cluster, which causes the node that wants to register the cluster can
> not to register successfully.
>
> !image-2022-12-01-17-58-05-668.png!
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