| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Gregory Stark <stark(at)enterprisedb(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-committers(at)postgresql(dot)org |
| Subject: | Re: pgsql: Add checks to TRUNCATE, CLUSTER, and REINDEX to prevent |
| Date: | 2008-02-01 02:41:01 |
| Message-ID: | 200802010241.m112f1r04410@momjian.us |
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| Thread: | |
| Lists: | pgsql-committers |
Gregory Stark wrote:
> "Bruce Momjian" <bruce(at)momjian(dot)us> writes:
>
> > * Improve deadlock detection when deleting items from shared buffers
> >...
> > Let me know if there is better wording.
>
> I'm not sure whhere deleting items from shared buffers enters into it.
>
> I think you need something like:
>
> Add deadlock detection when a process holding a buffer pin is blocked by a
> lock held by a process attempting to LockBufferForCleanup() on that buffer or
> more complex versions thereof. (And without adding unacceptable overhead to
> pin/unpin.)
Text updated:
* Improve deadlock detection when a page cleaning lock conflicts
with a shared buffer that is pinned
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://postgres.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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