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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COUCHDB-2040) Compaction fails when copying attachment
Date Wed, 29 Jan 2014 22:18:10 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-2040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13885897#comment-13885897
] 

ASF subversion and git services commented on COUCHDB-2040:
----------------------------------------------------------

Commit 586dfe4bd0be5318b259faa494c941a8923bb074 in branch refs/heads/2050-bug-md5-mismatch
from [~rnewson]
[ https://git-wip-us.apache.org/repos/asf?p=couchdb.git;h=586dfe4 ]

Throw cleaner error on MD5 mismatch during compaction

COUCHDB-2040


> Compaction fails when copying attachment
> ----------------------------------------
>
>                 Key: COUCHDB-2040
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-2040
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Database Core
>            Reporter: Igor Klimer
>
> Orignal discussion from the user mailing list: http://mail-archives.apache.org/mod_mbox/couchdb-user/201401.mbox/%3cD14F971A540B974BB75ADC55F00F34CA69A356DA@SEX1.getback.ad2008r2.corp%3e
> Digest:
> During database compaction, the process fails at about 50% with the following error:
http://pastebin.com/qeaZNHMj (CouchDB 1.2.0, Windows Server 2008 R2 Enterprise).
> After server and CouchDB upgrade the error is still the same: http://pastebin.com/feJWu7bN
(CouchDB 1.5.0, Ubuntu 12.04.3 LTS (GNU/Linux 3.8.0-33-generic x86_64)).
> There was one prior attempt at compaction that failed because of insufficient disk space:
http://pastebin.com/S1URXN0p
> After this initial failure, I've made sure that there's sufficient disk space for the
.compact file.
> The .compact file was always removed before trying compaction again.
> At the request of Robert Samuel Newson, I've also tried with an empty .compact file -
the results were the same: http://pastebin.com/MJCgGM8C.
> Our I/O subsystem consists of some RAID5 matrices - the admins claim that they've been
running error-free since inception ;) We have yet to run a parity check, since that'd require
taking the matrix offline and I'd rather not do that without exhausting other options.
> Config files from the 1.2.0/Windows server (since that's where the fault must have occured):
> default.ini: http://pastebin.com/kUz0qyNk
> local.ini: http://pastebin.com/srZUMwzB
> Other than the default delayed_commits set to true, there are no options that could affect
fsync()ing and such.
> I've run:
> curl localhost:5984/ecrepo/_changes?include_docs=true
> curl localhost:5984/ecrepo/_all_docs?include_docs=true
> and both calls succeeded, which would suggest that a faulty (incorrect checksum/length)
is at fault somewhere.



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