[Ocfs2-devel] [PATCH 2/2] Thread recovery

[Joel Becker]

On Wed, Dec 01, 2010 at 09:13:37PM -0800, Sunil Mushran wrote:
> One problem I see is that we may spawn too many threads. Imagine
> a setup with 50 mounts and 16 nodes. Not uncommon at all. If 5 nodes
> die, that's 300 threads, 50 of which will be coordinating threads.
> 
> One solution is to have a universal mount count and use that and the
> number of cpus to come up with a per-mount parallel reco count.
> 
> Thoughts, anyone?

	The new concurrency workqueues should allow us a
limited-threadcount pool of threads to do this.  We should be using them
rather than implementing thread management ourselves.

Joel

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Joel Becker
Senior Development Manager
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127