[jira] [Commented] (CASSANDRA-8621) For streaming operations, when a socket is closed/reset, we should retry/reinitiate that stream

["Paulo Motta (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-8621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15191003#comment-15191003 ] 

Paulo Motta commented on CASSANDRA-8621:
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You probably want to check your TCP keepalive settings: https://docs.datastax.com/en/cassandra/2.0/cassandra/troubleshooting/trblshootIdleFirewall.html

> For streaming operations, when a socket is closed/reset, we should retry/reinitiate that stream
> -----------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-8621
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8621
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Streaming and Messaging
>            Reporter: Jeremy Hanna
>            Assignee: Paulo Motta
>
> Currently we have a setting (streaming_socket_timeout_in_ms) that will timeout and retry the stream operation in the case where tcp is idle for a period of time.  However in the case where the socket is closed or reset, we do not retry the operation.  This can happen for a number of reasons, including when a firewall sends a reset message on a socket during a streaming operation, such as nodetool rebuild necessarily across DCs or repairs.
> Doing a retry would make the streaming operations more resilient.  It would be good to log the retry clearly as well (with the stream session ID and node address).



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