>
>
> So wal replay got AccessExclusiveLock on relation 17987 and waiting for
> something.
> And query waiting for AccessShareLock on the same relation.
>
>
=E2=80=8Bgdb backtrace from stuck startup process:
(gdb) bt
#0 0x00007f04ad862633 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f04af86488e in pg_usleep (microsec=3D<optimized out>) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/port/pgsleep.c:53
#2 0x00007f04af7328ac in WaitExceedsMaxStandbyDelay () at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/storage/ipc/standby.c=
:171
#3 ResolveRecoveryConflictWithVirtualXIDs
(reason=3DPROCSIG_RECOVERY_CONFLICT_SNAPSHOT, waitlist=3D0x7f04b13ba2f0) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/storage/ipc/standby.c=
:232
#4 ResolveRecoveryConflictWithVirtualXIDs (waitlist=3D0x7f04b13ba2f0,
reason=3DPROCSIG_RECOVERY_CONFLICT_SNAPSHOT) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/storage/ipc/standby.c=
:191
#5 0x00007f04af544445 in heap_xlog_clean (record=3D0x7f04b1395b80,
lsn=3D107351881751648) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/heap/heapam.c:=
7329
#6 heap2_redo (lsn=3D107351881751648, record=3D0x7f04b1395b80) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/heap/heapam.c:=
8488
#7 0x00007f04af580648 in StartupXLOG () at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/access/transam/xlog.c=
:6920
#8 0x00007f04af6f5d8f in StartupProcessMain () at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/postmaster/startup.c:=
224
#9 0x00007f04af58c579 in AuxiliaryProcessMain (argc=3D2, argv=3D<optimized
out>) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/bootstrap/bootstrap.c=
:422
#10 0x00007f04af6f235b in StartChildProcess (type=3DStartupProcess) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/postmaster/postmaster=
.c:5155
#11 0x00007f04af6f4847 in PostmasterMain (argc=3D<optimized out>,
argv=3D<optimized out>) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/postmaster/postmaster=
.c:1237
#12 0x00007f04af513a5d in main (argc=3D5, argv=3D0x7f04b13731a0) at
/tmp/buildd/postgresql-9.4-9.4.4/build/../src/backend/main/main.c:228
=E2=80=8B
--=20
Maxim Boguk
Senior Postgresql DBA
http://www.postgresql-consulting.ru/ <http://www.postgresql-consulting.com/=
>
Phone RU: +7 910 405 4718
Phone AU: +61 45 218 5678
LinkedIn: http://www.linkedin.com/pub/maksym-boguk/80/b99/b1b
Skype: maxim.boguk
Jabber: maxim.boguk@gmail.com
=D0=9C=D0=BE=D0=B9=D0=9A=D1=80=D1=83=D0=B3: http://mboguk.moikrug.ru/
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