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From: Massimo Dal Zotto <dz@cs.unitn.it>

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> sinval.patch
>
>       fixes a problem in SI cache which causes table overflow if some
>       backend is idle for a long time while other backends keep adding
>       entries.
>       It uses the new signal handling implemented in tprintf.patch.
>       I have also increacasesed the max number of backends from 32 to 64
>       and the table size from 1000 to 5000.
>       I don't know if anybody is working on SI, but until another
>       solution is found this patch fixes the problem. I have received
>       messages from other people reporting the same problem which I
>       fixed many months ago.
This commit is contained in:
Marc G. Fournier
1998-08-25 21:31:20 +00:00
parent 82555376a1
commit 53d7d47302
3 changed files with 23 additions and 8 deletions
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5
src/backend/storage/ipc/sinval.c
View File

@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/storage/ipc/sinval.c,v 1.10 1998/06/15 19:29:15 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/storage/ipc/sinval.c,v 1.11 1998/08/25 21:31:17 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
@@ -157,8 +157,7 @@ RegisterSharedInvalid(int cacheId, /* XXX */
/* should be called by a backend */
/****************************************************************************/
void
InvalidateSharedInvalid(void (*invalFunction) (),
void (*resetFunction) ())
InvalidateSharedInvalid(void (*invalFunction) (), void (*resetFunction) ())
{
SpinAcquire(SInvalLock);
SIReadEntryData(shmInvalBuffer, MyBackendId,