[
https://issues.apache.org/jira/browse/COUCHDB-3421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16014416#comment-16014416
]
Joan Touzet commented on COUCHDB-3421:
--------------------------------------
Hi Scott,
I see you are using coreos and docker. This is not an officially supported
configuration for CouchDB at this time. My guess is that you are running into
performance limitations inherent in this configuration. Can you test the same
setup, but without using Docker or coreos?
I can guarantee you that many of us have CouchDB in production with loads far
greater than you are testing with and see no problems of this sort.
> 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
>
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
