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Posted to issues@spark.apache.org by "Petar Petrov (JIRA)" <ji...@apache.org> on 2018/01/22 22:04:01 UTC

[jira] [Created] (SPARK-23182) Allow enabling of TCP keep alive for master RPC connections

Petar Petrov created SPARK-23182:
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             Summary: Allow enabling of TCP keep alive for master RPC connections
                 Key: SPARK-23182
                 URL: https://issues.apache.org/jira/browse/SPARK-23182
             Project: Spark
          Issue Type: Improvement
          Components: Spark Core
    Affects Versions: 2.2.0
            Reporter: Petar Petrov


We rely heavily on preemptible worker machines in GCP/GCE. These machines disappear without closing the TCP connections to the master which increases the number of established connections and new workers can not connect because of "Too many open files" on the master.

To solve the problem we need to enable TCP keep alive for the RPC connections to the master but it's not possible to do so via configuration.



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