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https://issues.apache.org/jira/browse/SPARK-27868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17018219#comment-17018219
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Marcelo Masiero Vanzin commented on SPARK-27868:
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It's ok for now, it's done. Hopefully 3.0 will come out soon and the "main"
documentation on the site will have the info.
> Better document shuffle / RPC listen backlog
> --------------------------------------------
>
> Key: SPARK-27868
> URL: https://issues.apache.org/jira/browse/SPARK-27868
> Project: Spark
> Issue Type: Bug
> Components: Documentation, Spark Core
> Affects Versions: 2.4.3
> Reporter: Marcelo Masiero Vanzin
> Assignee: Marcelo Masiero Vanzin
> Priority: Minor
> Labels: release-notes
> Fix For: 3.0.0
>
>
> The option to control the listen socket backlog for RPC and shuffle servers
> is not documented in our public docs.
> The only piece of documentation is in a Java class, and even that
> documentation is incorrect:
> {code}
> /** Requested maximum length of the queue of incoming connections. Default
> -1 for no backlog. */
> public int backLog() { return conf.getInt(SPARK_NETWORK_IO_BACKLOG_KEY,
> -1); }
> {code}
> The default value actual causes the default value from the JRE to be used,
> which is 50 according to the docs.
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