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https://issues.apache.org/jira/browse/COUCHDB-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alexander Shorin updated COUCHDB-1429:
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Component/s: View Server Support
> Server stops responding after heavy load against _list function
> ---------------------------------------------------------------
>
> Key: COUCHDB-1429
> URL: https://issues.apache.org/jira/browse/COUCHDB-1429
> Project: CouchDB
> Issue Type: Bug
> Components: View Server Support
> Affects Versions: 1.1.1
> Environment: Ubuntu 11.10 on AWS EC2 t1.micro instance, ~512MB memory
> and no swap
> Reporter: Nathan Vander Wilt
>
> Under heavy load, CouchDB crashes and stops responding to all incoming
> requests.
> To reproduce this, basically:
> 1. build-couchdb (1.1.1) on an EC2 t1.micro running Ubuntu
> 2. Add the '42' file at the path Blitz.io is looking for (not sure the
> easiest way to do this natively, I inserted a rule for it at the nginx level)
> 3. Run their default rush on a _list function (mine happened to do a fair
> amount of work,
> doing a Markdown conversion and Mustache templating)
> 4. Around about the 40 concurrent user mark in my case, CouchDB dies a
> terrible horrible death with a
> bunch of zombie couchjs process.
> In this log https://gist.github.com/a059c4db5bce19f1df7f (warning: large!)
> you'll see the heavy requests being handled but suddenly crashing. The
> "restart" seen at the end was due to manual intervention from the shell,
> CouchDB did not gracefully handle the issue.
> I later tried turning on some swap space in case memory was an issue, but
> didn't seem to have an appreciable effect.
> May be related to the discussion here:
> http://mail-archives.apache.org/mod_mbox/couchdb-dev/201203.mbox/%3ccapino9ek5xajllpyufwnrk3hxkn5e-5j59pr6ummdwpmthh...@mail.gmail.com%3e
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