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Cleaning up locks on application startup [message #1235512]

Fri, 24 January 2014 09:55

Laurent Petit
Messages: 21
Registered: December 2010

Junior Member

I have a server side application whose storage is backed up by JGit.

If the application crashes, or is killed, it is possible (it already happened in practice) that some lock files remain on disk, e.g. .git/refs/heads/master.lock

My question is, are there administration methods / ways, via JGit API, to cleanup this kind of false positive when the application starts up ?

I can consider just walking the .git repository and remove all *.lock files found there, but maybe it's just one of many problems that could occur when the application is killed while it was busy with jgit, and this is already handled by some jgit code ?

Thanks in advance,

--
Laurent

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Re: Cleaning up locks on application startup [message #1236605 is a reply to message #1235512]

Mon, 27 January 2014 11:50

Matthias Sohn
Messages: 546
Registered: July 2009

Senior Member

It looks like your application tried to update the master branch when it crashed. File locks are implemented by jgit's
LockFile class. You may try to get rid of stale locks caused by crashes using LockFile.unlock().

source code
https://git.eclipse.org/c/jgit/jgit.git/tree/org.eclipse.jgit/src/org/eclipse/jgit/internal/storage/file/LockFile.java

javadoc
http://download.eclipse.org/jgit/docs/jgit-3.2.0.201312181205-r/apidocs/org/eclipse/jgit/internal/storage/file/LockFile.html

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