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| author | Robert Haas <rhaas@postgresql.org> | 2016-09-20 12:04:41 -0400 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2016-09-20 12:04:41 -0400 |
| commit | 419113dfdc4c729f6c763cc30a9b02ee68a7da94 (patch) | |
| tree | 7315c7f4b1e7e398a3acec68b2633db4b48ffa07 /src/backend/executor/nodeWindowAgg.c | |
| parent | 45310221a9afccd98e78813459472370ade9dc4c (diff) | |
| download | postgresql-419113dfdc4c729f6c763cc30a9b02ee68a7da94.tar.gz postgresql-419113dfdc4c729f6c763cc30a9b02ee68a7da94.zip | |
Retry DSM control segment creation if Windows indicates access denied.
Otherwise, attempts to run multiple postmasters running on the same
machine may fail, because Windows sometimes returns ERROR_ACCESS_DENIED
rather than ERROR_ALREADY_EXISTS when there is an existing segment.
Hitting this bug is much more likely because of another defect not
fixed by this patch, namely that dsm_postmaster_startup() uses
random() which returns the same value every time. But that's not
a reason not to fix this.
Kyotaro Horiguchi and Amit Kapila, reviewed by Michael Paquier
Discussion: <CAA4eK1JyNdMeF-dgrpHozDecpDfsRZUtpCi+1AbtuEkfG3YooQ@mail.gmail.com>
Diffstat (limited to 'src/backend/executor/nodeWindowAgg.c')
0 files changed, 0 insertions, 0 deletions