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From "Joshua McKenzie (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10714) tcp retransmission issue seen in cassandra cluster
Date Tue, 03 May 2016 16:56:13 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15269067#comment-15269067
] 

Joshua McKenzie commented on CASSANDRA-10714:
---------------------------------------------

[~jeffl]: Are you still seeing this issue, or did it resolve via other means (software/firmware/hardware
changes)?

> tcp retransmission issue seen in cassandra cluster
> --------------------------------------------------
>
>                 Key: CASSANDRA-10714
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10714
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Streaming and Messaging
>            Reporter: Jeff Liu
>
> I have been seen tcp package retransmission issue in various stacks in our environment.
( AWS with no VPC). I'm currently using hsha rpc server type on cassandra 2.1.6 version. The
information captured by wireshark shows that the retransmission happened both between client-to-server
and server-to-server. Even within a cluster that doesn't have any client traffic, sporadic
retransmission still happens.
> It's pretty easy to reproduce this issue by watching "netstat -s | grep retrans". 



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