I looked and found a new "hint". On Tue, Nov 19, 2019 at 05:57:59AM -0600, Justin Pryzby wrote: > < 2019-11-15 22:16:07.098 EST >PANIC: could not fsync file > "base/16491/1731839470.2": No such file or directory > < 2019-11-15 22:16:08.751 EST >LOG: checkpointer process (PID 27388) was > terminated by signal 6: Aborted
An earlier segment of that relation had been opened successfully and was *still* opened: $ sudo grep 1731839470 /var/spool/abrt/ccpp-2019-11-15-22:16:08-27388/open_fds 63:/var/lib/pgsql/12/data/base/16491/1731839470 For context: $ sudo grep / /var/spool/abrt/ccpp-2019-11-15-22:16:08-27388/open_fds |tail -3 61:/var/lib/pgsql/12/data/base/16491/1757077748 62:/var/lib/pgsql/12/data/base/16491/1756223121.2 63:/var/lib/pgsql/12/data/base/16491/1731839470 So this may be an issue only with relations>segment (but, that interpretation could also be very naive).
