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From "Joshua Bronson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (COUCHDB-275) couch crashes erlang vm under heavy load
Date Thu, 12 Mar 2009 06:22:50 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12681179#action_12681179
] 

Joshua Bronson commented on COUCHDB-275:
----------------------------------------

I have installed erlang R12B-5 on a development server, applied the attached patch, and can
confirm that it prevents the term_to_binary snippet above from crashing erlang. did bjorn
give any idea as to why the OTP team will not include this patch? would be good to know before
we roll this out on our production server.

> couch crashes erlang vm under heavy load
> ----------------------------------------
>
>                 Key: COUCHDB-275
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-275
>             Project: CouchDB
>          Issue Type: Bug
>    Affects Versions: 0.9
>         Environment: Linux melkjug.com 2.6.23-gentoo-r8 #1 SMP Wed Feb 13 14:28:49 EST
2008 x86_64 QEMU Virtual CPU version 0.9.1 GenuineIntel GNU/Linux
>            Reporter: Joshua Bronson
>         Attachments: 2009-03-05-couch.log.snippet, term_to_binary_fix.diff
>
>
> I clicked "Compact" in futon for my 11G database at 9:04 AM EST:
> [Mon, 02 Mar 2009 14:04:32 GMT] [info] [<0.59.0>] Starting compaction for db "melkjug"
> An hour and a half later it was 85% finished and then the following was output to stderr:
> heart: Mon Mar  2 10:33:20 2009: heart-beat time-out.
> /usr/bin/couchdb: line 255: echo: write error: Broken pipe
> heart: Mon Mar  2 10:33:22 2009: Executed "/usr/bin/couchdb -k". Terminating.
> I am retaining my 4.3G melkjug.couch.compact file in case it's useful in debugging this.

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