On postgresql startup, I see this in the log files
2017-07-17 05:21:01.743 UTC > LOCATION: CreateAnonymousSegment, pg_shmem.c:484
2017-07-17 05:21:01.868 UTC > LOG: 00000: redirecting log output to logging collector process
2017-07-17 05:21:01.868 UTC > HINT: Future log output will appear in directory "pg_log".
2017-07-17 05:21:01.868 UTC > LOCATION: SysLogger_Start, syslogger.c:622
2017-07-21 05:46:01.680 UTC > DEBUG: 00000: logger shutting down
2017-07-21 05:46:01.680 UTC > LOCATION: SysLoggerMain, syslogger.c:490
2017-07-21 05:46:01.973 UTC > DEBUG: 00000: mmap(8264876032) with MAP_HUGETLB failed, huge pages disabled: Cannot allocate memory
I have never used huge pages - turning on huge_pages in
postgres.conf does not help, I get different errors and the server will not start. I am unfamiliar with these settings.
Please help point me in the right direction to explore why these errors are occurring and what I should do about them - adjustments to memory settings, logging (it is set very high) vacuuming, or what?
What parts of the PostgreSQL manual are relevant?
Stack: postgresql 9.6 on aws ec2 generic linux
UPDATE: This post was originally written about things I noticed on installing a backup utility, and how that appeared to be causing errors, then I noticed a server without the utility is logging the same messages.