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From "Peter Dettman (JIRA)" <j...@apache.org>
Subject [jira] Created: (JCR-2674) FileDataStore ignores return code from setLastModified
Date Wed, 14 Jul 2010 18:28:57 GMT
FileDataStore ignores return code from setLastModified
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                 Key: JCR-2674
                 URL: https://issues.apache.org/jira/browse/JCR-2674
             Project: Jackrabbit Content Repository
          Issue Type: Bug
          Components: jackrabbit-core
    Affects Versions: 2.1.0
         Environment: Solaris/ZFS/JDK1.6.0_20
            Reporter: Peter Dettman
            Priority: Critical


Garbage collection depends on the file modification date being successfully updated when records
are "touched" during the mark phase. The result of a silent failure is the catastrophic loss
of the file in the sweep phase.

FileDataStore.getRecordIfStored does not, however, check the return code from setLastModified.

I believe I was bitten by this when my dev deployment ran out of disk space. A substantial
portion of my datastore was deleted, and the best explanation I can come up with is that the
setLastModified calls started (silently) failing, leading to massive overkill in the sweep.

There is also a call to setLastModified in FileDataStore.addRecord which is not strictly correct
in the face of GC (i.e. it needs the resolution offset, and also must succeed if the file
is writable or risk incorrect collection).

Patch to follow.

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