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From "Ramzi Rabah (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-651) cassandra 0.5 version throttles and sometimes kills traffic to a node if you restart it.
Date Wed, 23 Dec 2009 17:40:29 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12794121#action_12794121
] 

Ramzi Rabah commented on CASSANDRA-651:
---------------------------------------

More info:
 I do see that Node X.X.X.X is dead, and
Node X.X.X.X has restarted.

This show up on all the 3 other servers:
 INFO [Timer-1] 2009-12-22 20:38:43,738 Gossiper.java (line 194)
InetAddress /10.6.168.20 is now dead.

Node /10.6.168.20 has restarted, now UP again
 INFO [GMFD:1] 2009-12-22 20:43:12,812 StorageService.java (line 475)
Node /10.6.168.20 state jump to normal



> cassandra 0.5 version throttles and sometimes kills traffic to a node if you restart
it.
> ----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-651
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-651
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: latest in 0.5 branch
>            Reporter: Ramzi Rabah
>
> From the cassandra user message board: 
> "I just recently upgraded to latest in 0.5 branch, and I am running
> into a serious issue. I have a cluster with 4 nodes, rackunaware
> strategy, and using my own tokens distributed evenly over the hash
> space. I am writing/reading equally to them at an equal rate of about
> 230 reads/writes per second(and cfstats shows that). The first 3 nodes
> are seeds, the last one isn't. When I start all the nodes together at
> the same time, they all receive equal amounts of reads/writes (about
> 230).
> When I bring node 4 down and bring it back up again, node 4's load
> fluctuates between the 230 it used to get to sometimes no traffic at
> all. The other 3 still have the same amount of traffic. And no errors
> what so ever seen in logs. " 

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