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https://issues.apache.org/jira/browse/CASSANDRA-9625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14596458#comment-14596458
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Nimi Wariboko Jr. commented on CASSANDRA-9625:
----------------------------------------------

We are seeing this issue as well on single node. Our cluster has been upgraded 
to 2.1.6 - however for one node we enabled reporting on all the column family 
metrics. This is the only node the eventually stops reporting its metrics to 
graphite.

> GraphiteReporter not reporting
> ------------------------------
>
>                 Key: CASSANDRA-9625
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9625
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Debian Jessie, 7u79-2.5.5-1~deb8u1, Cassandra 2.1.3
>            Reporter: Eric Evans
>            Assignee: T Jake Luciani
>             Fix For: 2.1.x
>
>         Attachments: metrics.yaml, thread-dump.log
>
>
> When upgrading from 2.1.3 to 2.1.6, the Graphite metrics reporter stops 
> working.  The usual startup is logged, and one batch of samples is sent, but 
> the reporting interval comes and goes, and no other samples are ever sent.  
> The logs are free from errors.
> Frustratingly, metrics reporting works in our smaller (staging) environment 
> on 2.1.6; We are able to reproduce this on all 6 of production nodes, but not 
> on a 3 node (otherwise identical) staging cluster (maybe it takes a certain 
> level of concurrency?).
> Attached is a thread dump, and our metrics.yaml.



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