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Commit5a90740

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Update HINT for pre-existing shared memory block.
One should almost always terminate an old process, not use a manualremoval tool like ipcrm. Removal of the ipcclean script eleven yearsago (39627b1) and its non-replacementcorroborate that manual shm removal is now a niche goal. Back-patch to9.4 (all supported versions).Reviewed by Daniel Gustafsson and Kyotaro HORIGUCHI.Discussion:https://postgr.es/m/20180812064815.GB2301738@rfd.leadboat.com
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‎src/backend/utils/init/miscinit.c‎

Lines changed: 3 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -1066,14 +1066,10 @@ CreateLockFile(const char *filename, bool amPostmaster,
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if (PGSharedMemoryIsInUse(id1,id2))
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ereport(FATAL,
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(errcode(ERRCODE_LOCK_FILE_EXISTS),
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errmsg("pre-existing shared memory block "
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"(key %lu, ID %lu) is still in use",
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errmsg("pre-existing shared memory block (key %lu, ID %lu) is still in use",
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id1,id2),
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errhint("If you're sure there are no old "
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"server processes still running, remove "
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"the shared memory block "
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"or just delete the file \"%s\".",
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filename)));
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errhint("Terminate any old server processes associated with data directory \"%s\".",
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refName)));
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}
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}
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