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https://issues.apache.org/jira/browse/IOTDB-6125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17761159#comment-17761159
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LiYuheng commented on IOTDB-6125:
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iotdb使用默认配置，bm将DEVICE_NUM_PER_WRITE设为1000，BATCH_SIZE_PER_WRITE设为1，应该就能复现当时的问题。
完整配置见附件。
> Fix DataPartition allocation bug when insert big batch data
> -----------------------------------------------------------
>
> Key: IOTDB-6125
> URL: https://issues.apache.org/jira/browse/IOTDB-6125
> Project: Apache IoTDB
> Issue Type: Bug
> Reporter: Yongzao Dan
> Assignee: Yongzao Dan
> Priority: Major
> Labels: pull-request-available
> Attachments: iotd与bm配置.zip
>
>
> The DataPartitions will be allocated un-balanced if the user insert a big
> batch data to the cluster firstly. Because the RegionGroup
> quickly-extension-policy doesn't extend enough RegionGroups for the special
> case.
>
> In this PR, the RegionGroup extension policy will always ensure the database
> have enough RegionGroups for allocate new Partitions balancely.
>
> And this PR also add some concise log to record the DataAllotTable
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