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https://issues.apache.org/jira/browse/HDFS-17588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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fuchaohong updated HDFS-17588:
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Description: When using RouterObserverReadProxyProvider to initiate the
first RPC request, the router routes this RPC to the active namenode and
updates the stateid of the corresponding nameservice. However, the stateid of
other nameservices is not updated. Clients should first perform msync to update
the stateid of all nameservices with enabled Observers before executing the
first read. (was: When using RouterObserverReadProxyProvider to initiate the
first RPC request, the router routes this RPC to the active namenode and
updates the stateid of the corresponding nameservice. However, the stateid of
other nameservices is not updated. Clients should first perform msync to update
the stateid of all nameservices with enabled Observers.)
> RBF: RouterObserverReadProxyProvider should perform an msync before executing
> the first read.
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-17588
> URL: https://issues.apache.org/jira/browse/HDFS-17588
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: rbf
> Reporter: fuchaohong
> Priority: Major
> Labels: pull-request-available
>
> When using RouterObserverReadProxyProvider to initiate the first RPC request,
> the router routes this RPC to the active namenode and updates the stateid of
> the corresponding nameservice. However, the stateid of other nameservices is
> not updated. Clients should first perform msync to update the stateid of all
> nameservices with enabled Observers before executing the first read.
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