Thread:Project:Support desk/Problem With File Upload: Could not acquire lock for "mwstore://local-backend/local-public/1/1e"./reply (8)

Ok, I found a way to force nullLockManager, and my uploads work now. Change line 97 in includes/filebackend/FileBackendGroup.php from

'lockManager'   => 'fsLockManager',

to 'lockManager'   => 'nullLockManager',

A rather direct fix, in a way does not feel 'right'.

What is the preferred way of switching to nullLockManager, by the way? The list of lock managers in DefaultSettings.php is empty, it is populated in includes/Setup.php as far as I can tell, and if I comment out fsLockManager there I get "Internal error" later (since it is being referenced).

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Discussion on SourceForge (sourceforge.net/p/forge/site-support/2758/) suggests the issue is with locking on NFS.