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https://issues.apache.org/jira/browse/COUCHDB-3421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16014574#comment-16014574
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Scott Kaul commented on COUCHDB-3421:
-------------------------------------
Hi Joan,
Thanks for the reply. Is docker the issue, coreOS or both? Should I try
ubuntu/RHEL or just anything but coreOS/docker?
Also, am I reading this error correctly? The issue is replication is falling
behind and it is unable to synchronize data from one node to the other?
Anything else that can be done to alleviate the work load?
Thanks!
Scott
> mem3 sync shards WARNING at very low message rate, data doesn't sync
> --------------------------------------------------------------------
>
> Key: COUCHDB-3421
> URL: https://issues.apache.org/jira/browse/COUCHDB-3421
> Project: CouchDB
> Issue Type: Bug
> Components: Replication
> Reporter: Scott Kaul
> Priority: Minor
>
> Sending couch messages, as low as 100 messages a second, results in couch
> falling behind on its replication with other nodes. In cluster configuration
> n, w, and r are all set to 2. While sending these messages, the following
> warning is observed:
> May 17 15:56:54 coreosnode2 docker[26520]: [warning]
> 2017-05-17T15:56:54.753466Z [email protected] <0.309.0> --------
> mem3_sync shards/20000000-3fffffff/test.1495035040
> [email protected] {pending_changes,151}
> Likewise after the message loader is stopped (jmeter) it takes couch a period
> of time (minutes) to complete replication before the WARNINGs are no longer
> received and couchDB CPU goes down.
> I'm happy to provide a jmx file for jmeter as well as a couple curl commands
> to delete/create the DB used.
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