Re: 7.3.4 vacuum/analyze error

Alvaro Herrera <alvherre@dcc.uchile.cl> writes:
> On Wed, Sep 29, 2004 at 11:23:52PM -0600, Ed L. wrote:
>> On Wednesday September 29 2004 5:17, Tom Lane wrote:
>>> 2004-09-29 18:14:53.621 [520]    ERROR:  Memory exhausted in
>>> AllocSetAlloc(1189)
>>>
>>> Analyze: 132263832 total in 27 blocks; 2984 free (35 chunks); 132260848
>>> used
>>>
>>> Either increase your per-process memory limit, or reduce the statistics
>>> targets for this table ...
>>
>> Can you explain a little more of how you interpret the numbers above to draw
>> your conclusion?

> I just means that, from the operating system POV, there are 132263832
> bytes in use.  The rest is Pg internal bookkeeping that doesn't help you
> any.

Well, the other potentially interesting deduction is that the failure
came during a request for a small additional amount of memory, viz 1189
bytes.  Had the AllocSetAlloc call been requesting hundreds of megs,
my thoughts would have turned to corrupt data (specifically a broken
field-length word) instead of memory exhaustion per se.

            regards, tom lane