Tom DalPozzo <t.dalpo...@gmail.com> writes:
> 2017-04-18 22:06 GMT+02:00 Tom Lane <t...@sss.pgh.pa.us>:
>> If your session is just sitting, that's not surprising. I think stats
>> updates are only transmitted to the collector at transaction end (and
>> even then, only if it's been at least N msec since the last transmission
>> from the current session).
> Hi, my transaction ended, that I waited 1 min and queried the stat.
> I had to wait for session end in order to see the updeted stats.
> Did you mean "...to the collector at SESSION end"?
No, I meant what I said. No amount of just-sitting will cause a session
to do something: it either transmits stats at transaction end or it
doesn't because it thinks it's too soon since its last update. If you
want to force out the stats, you could wait a second or so and then
do a dummy transaction (even "select 1" will do, in testing).
BTW, a quick look at the code says the threshold is 500 msec, ie,
stats are sent only if it's been at least half a second since the
session's last report.
regards, tom lane
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