This bug certainly sounds like it might apply in my case.  But wouldn't 
this fix already be in the akubra-fs.jar file included with Fedora 3.4.2? 
(I checked and my version of the file is akubra-fs-0.3.jar.)  If not then 
please send me the details for building the latest version. 





From:
Scott Prater <pra...@wisc.edu>
To:
"Support and info exchange list for Fedora users." 
<fedora-commons-users@lists.sourceforge.net>
Date:
10/28/2011 05:13 PM
Subject:
Re: [fcrepo-user] Datastream modification error



You may have run into this bug:

https://jira.duraspace.org/browse/AKUBRA-1

The quick fix is to build Akubra from the master branch, and install the 
patched akubra-fs jar.  I can provide you with more details, if you want 
to go down this path.

-- Scott

On 10/28/2011 05:58 PM, Christopher Emmerich wrote:
> I'm having a problem modifying Fedora datastreams after having moved my
> entire fedora/data directory to AFS and creating a symbolic link to the
> AFS.  Ingests and purges work fine but datastream modifications fail.
> Here's the relevant part of the stack trace:
>
>          at java.lang.Thread.run(Thread.java:619) [na:1.6.0_21]
> Caused by: org.fcrepo.common.FaultException: java.io.IOException: Rename
> failed
> for an unknown reason.
>          at
> org.fcrepo.server.storage.lowlevel.akubra.AkubraLowlevelStorage.renam
> e(AkubraLowlevelStorage.java:363) [fcrepo-server-3.4.2.jar:na]
>          at
> org.fcrepo.server.storage.lowlevel.akubra.AkubraLowlevelStorage.safeO
> verwrite(AkubraLowlevelStorage.java:306) [fcrepo-server-3.4.2.jar:na]
>          at
> org.fcrepo.server.storage.lowlevel.akubra.AkubraLowlevelStorage.repla
> ce(AkubraLowlevelStorage.java:244) [fcrepo-server-3.4.2.jar:na]
>          at
> org.fcrepo.server.storage.lowlevel.akubra.AkubraLowlevelStorage.repla
> ceObject(AkubraLowlevelStorage.java:150) [fcrepo-server-3.4.2.jar:na]
>          at
> org.fcrepo.server.storage.lowlevel.akubra.AkubraLowlevelStorageModule
> .replaceObject(AkubraLowlevelStorageModule.java:79)
> [fcrepo-server-3.4.2.jar:na]
>
>          at
> org.fcrepo.server.storage.DefaultDOManager.doCommit(DefaultDOManager.
> java:1334) [fcrepo-server-3.4.2.jar:na]
>          ... 46 common frames omitted
> Caused by: java.io.IOException: Rename failed for an unknown reason.
>          at org.akubraproject.fs.FSBlob.moveTo(FSBlob.java:151)
> [akubra-fs-0.3.ja
> r:na]
>          at
> org.akubraproject.map.IdMappingBlob.moveTo(IdMappingBlob.java:69) [ak
> ubra-map-0.3.jar:na]
>          at
> org.fcrepo.server.storage.lowlevel.akubra.AkubraLowlevelStorage.renam
> e(AkubraLowlevelStorage.java:361) [fcrepo-server-3.4.2.jar:na]
>
> Our AFS sys. admin mentioned that AFS doesn't support hard links.  Are
> hard links being used to create copies of data files?  If so, is there a
> workaround?  I'm using Fedora 3.4.2.
>
>
>
>
> 
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-- 
Scott Prater
Library, Instructional, and Research Applications (LIRA)
Division of Information Technology (DoIT)
University of Wisconsin - Madison
pra...@wisc.edu

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