spurious /dev/shm related errors on insert

[Michael Charnoky <noky@xxxxxxxx>]

Hi, I'm seeing random errors from an application that is performing DB inserts. The error happens spuriously and looks like this from the application side:

could not open file "/dev/shm/postgres_apptable_47861701461760" for reading: No such file or directory

The PostgreSQL logs show:

2016-03-18 07:25:01 UTC ERROR:  could not open file "/dev/shm/postgres_apptable_47861701461760" for reading: No such file or directory
2016-03-18 07:25:01 UTC STATEMENT:  COPY urltable FROM '/dev/shm/postgres_apptable_47861701461760' USING DELIMITERS '#' WITH NULL AS '\null';

Any clues? I couldn't find any similar issues reported by other users. Thanks!

Mike