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https://issues.apache.org/jira/browse/COUCHDB-2040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13885901#comment-13885901
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Robert Newson commented on COUCHDB-2040:
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Something like this:
https://git-wip-us.apache.org/repos/asf?p=couchdb.git;a=commitdiff;h=586dfe4;hp=f04485f04e2f02e86ca6316a0b19ce9a8d3cc5fd
> 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/%3cd14f971a540b974bb75adc55f00f34ca69a35...@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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