Re: Testing pg_terminate_backend()

Tom Lane wrote:
> Bruce Momjian <bruce@momjian.us> writes:
> > Attached is my test script.   I ran it for 14 hours (asserts on),
> > running 450 regression tests, with up to seven backends killed per
> > regression test.
>
> Hmm, there are something on the order of 10000 SQL commands in our
> regression tests, so even assuming perfect randomness you've exercised
> SIGTERM on maybe 10% of them --- and of course there's multiple places
> in a complex DDL command where SIGTERM might conceivably be a problem.
>
> Who was volunteering to run this 24x7 for awhile?

Yes, that is what it needs.

> >         SLEEP=`expr $RANDOM \* $REGRESSION_DURATION / 32767`
>
> Uh, where's the randomness coming from?

In bash $RANDOM returns a random number from 0-32k every time;
#!/bin/bash is specified in the top line.

--
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +