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https://issues.apache.org/jira/browse/HDFS-3257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252943#comment-13252943
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Tsz Wo (Nicholas), SZE commented on HDFS-3257:
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> ... JournalService RPC server runs using a single thread. ...
I think we are better to assume multiple threads. Otherwise, read and write
from JournalService cannot be parallel. Also, the fence response may be slow
since it have to wait for other operations.
> Fix synchronization issues with journal service
> -----------------------------------------------
>
> Key: HDFS-3257
> URL: https://issues.apache.org/jira/browse/HDFS-3257
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Reporter: Hari Mankude
> Assignee: Hari Mankude
>
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