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https://issues.apache.org/jira/browse/HADOOP-15321?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16403284#comment-16403284
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Xiao Chen commented on HADOOP-15321:
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Git blaming I see this default has been like this since 0.23. [~kihwal] do you
have insights on why the default is as such?
> Reduce the RPC Client max retries on timeouts
> ---------------------------------------------
>
> Key: HADOOP-15321
> URL: https://issues.apache.org/jira/browse/HADOOP-15321
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Priority: Major
>
> Currently, the
> [default|https://github.com/apache/hadoop/blob/branch-3.0.0/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java#L379]
> number of retries when IPC client catch a {{ConnectTimeoutException}} is 45.
> This seems unreasonably high.
> Given the IPC client timeout is by default 60 seconds, if a DN host is
> shutdown the client will retry for 45 minutes until aborting. (If host is
> there but process down, it would throw a connection refused immediately,
> which is cool)
> Creating this Jira to discuss whether we can reduce that to a reasonable
> number.
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