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https://issues.apache.org/jira/browse/HDFS-12749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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TanYuxin updated HDFS-12749:
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Description: After SNN restart，DN will call BPServiceActor#reRegister
method to register. But when DN registers to NN, SNN will return
> After SNN restart and DN re-register to SNN，some DN may not send block report
> to SNN if DN num is too large
> -----------------------------------------------------------------------------------------------------------
>
> Key: HDFS-12749
> URL: https://issues.apache.org/jira/browse/HDFS-12749
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: TanYuxin
>
> After SNN restart，DN will call BPServiceActor#reRegister method to register.
> But when DN registers to NN, SNN will return
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