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The previous code tried to synchronize by unlinking the init file twice, but that doesn't actually work: it leaves a window wherein a third process could read the already-stale init file but miss the SI messages that would tell it the data is stale. The result would be bizarre failures in catalog accesses, typically "could not read block 0 in file ..." later during startup. Instead, hold RelCacheInitLock across both the unlink and the sending of the SI messages. This is more straightforward, and might even be a bit faster since only one unlink call is needed. This has been wrong since it was put in (in 2002!), so back-patch to all supported releases. |
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| .. | ||
| attoptcache.c | ||
| catcache.c | ||
| inval.c | ||
| lsyscache.c | ||
| Makefile | ||
| plancache.c | ||
| relcache.c | ||
| relmapper.c | ||
| spccache.c | ||
| syscache.c | ||
| ts_cache.c | ||
| typcache.c | ||