Jean-Gerard,
> The classic output from top (during all other index vacuum):
> PID UID PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND
> 20461 503 14 0 13M 75M sleep semwai 5:27 2.05% postgres
>
> When backend hits the tsearch2 index, SIZE/RES grows until it reachs
> 1GB, where I got the error.
> PID UID PRI NICE SIZE RES STATE WAIT TIME CPU COMMAND
> 20461 503 -5 0 765M 824M sleep biowai 4:26 33.20% postgres
OK, next thing to try is upgrading to 7.4.7. Since you have 7.4.2, this
should be a straightforward binary replacement.
--
--Josh
Josh Berkus
Aglio Database Solutions
San Francisco