Marcelo Vanzin created SPARK-27868:
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Summary: Better document shuffle / RPC listen backlog
Key: SPARK-27868
URL: https://issues.apache.org/jira/browse/SPARK-27868
Project: Spark
Issue Type: Improvement
Components: Documentation, Spark Core
Affects Versions: 2.4.3
Reporter: Marcelo Vanzin
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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