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Update FAQ.
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doc/FAQ
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doc/FAQ
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should be more than that for best performance. For large numbers of
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backend processes, you are also likely to find that you need to
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increase various Unix kernel configuration parameters. Things to check
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include the maximum size of shared memory blocks, SHMMAX, the maximum
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number of semaphores, SEMMNS and SEMMNI, the maximum number of
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processes, NPROC, the maximum number of processes per user, MAXUPRC,
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include the maximum size of shared memory blocks, SHMMAX; the maximum
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number of semaphores, SEMMNS and SEMMNI; the maximum number of
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processes, NPROC; the maximum number of processes per user, MAXUPRC;
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and the maximum number of open files, NFILE and NINODE. The reason
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that PostgreSQL has a limit on the number of allowed backend processes
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is so your system won't run out of resources.
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