cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Michael Shuler (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-10714) tcp retransmission issue seen in cassandra cluster
Date Mon, 16 Nov 2015 21:44:10 GMT


Michael Shuler commented on CASSANDRA-10714:

This could be simple network issues with a NIC, switch port, or neighbor, so TCP does its
job and retransmits packets. You might see error|dropped|overruns values in ifconfig, as well.
If this persists on a particular node in your cluster, it may be prudent to destroy that node
and launch another one in the hopes that you get a more stable server.

> tcp retransmission issue seen in cassandra cluster
> --------------------------------------------------
>                 Key: CASSANDRA-10714
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          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". 

This message was sent by Atlassian JIRA

View raw message