I am seeing fairly regular occurances of one or other pool grabbing every available scratch pool tape.
I'm not the only one who's reported it and I've filed it as a bug a couple of times but the issue has never been fixed. The problem is intermittent, apparently impossible to predict and leaves no indication of errors in the logfile. It's happened using on several versions of Bacula (3.2 up to current (but I only started using scratch pools at 3.2)) MySQL (several versions) and Postgres (Several versions), using LTO2 and LTO5 tapes. The only thing which I can think of which _might_ cause this is that if several jobs get started at once when there is no tape in "append" state in their pool they may all independently decide to grab one from the scratch pool (is there locking to prevent this happening?) Can someone take a look at the code and see if this scenario is possible? Does anyone have any other ideas why multiple tapes would be transferred from a scratch pool? For those who might think this is minor (which I did): I have been on leave for 10 days. This happened while I was away and caused major disruption to backups because the backup operators had no idea how to cope with the situation - and our director decided that as it wasn't supposed to happen they should wait for me to return before attempting to fix it. (35 new, unused tapes which had been added to the Scratch pool were pulled into one of the backup pools, leaving the other 4 pools starved of resources! They were afraid if they added more tapes it would happen again) ------------------------------------------------------------------------------ Learn Windows Azure Live! Tuesday, Dec 13, 2011 Microsoft is holding a special Learn Windows Azure training event for developers. It will provide a great way to learn Windows Azure and what it provides. You can attend the event by watching it streamed LIVE online. Learn more at http://p.sf.net/sfu/ms-windowsazure _______________________________________________ Bacula-devel mailing list Bacula-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-devel
