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Treat exit code 128 (ERROR_WAIT_NO_CHILDREN) as non-fatal on Win32, 

since it can happen when a process fails to start when the system
is under high load.

Per several bug reports and many peoples investigation.

Back-patch to 8.4, which is as far back as the "deadman-switch"
for shared memory access exists.
This commit is contained in:
Magnus Hagander 2010-09-16 20:37:13 +00:00
parent f7270a65b3
commit 594419e74a
1 changed files with 14 additions and 1 deletions
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15
src/backend/postmaster/postmaster.c
View File

@ -37,7 +37,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.615 2010/07/20 00:47:52 rhaas Exp $
* $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.616 2010/09/16 20:37:13 mha Exp $
*
* NOTES
*
@ -2588,6 +2588,19 @@ CleanupBackend(int pid,
* assume everything is all right and proceed to remove the backend from
* the active backend list.
*/
#ifdef WIN32
/*
* On win32, also treat ERROR_WAIT_NO_CHILDREN (128) as nonfatal
* case, since that sometimes happens under load when the process fails
* to start properly (long before it starts using shared memory).
*/
if (exitstatus == ERROR_WAIT_NO_CHILDREN)
{
LogChildExit(LOG, _("server process"), pid, exitstatus);
exitstatus = 0;
}
#endif
if (!EXIT_STATUS_0(exitstatus) && !EXIT_STATUS_1(exitstatus))
{
HandleChildCrash(pid, exitstatus, _("server process"));