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> 1 seconds seems a very low default for me. I can imagine that most
> distributed transactions are taking longer than this to complete.
One second means it is set by default to catch *all* prepared
transactions. It's simply checking how long the transaction has
been open via:
SELECT database, ROUND(EXTRACT(epoch FROM now()-prepared)), prepared
FROM pg_prepared_xacts ORDER BY prepared ASC;
If you *are* using prepared transactions (which most people are not),
you would want to set a specific number for your environment -
and certainly more than 1 second (perhaps 5 minutes?) At that point,
the check changes from "has anybody mistakenly created a prepared
transaction" to "has one of our prepared transactions been open
too long?"
- --
Greg Sabino Mullane greg@turnstep.com
End Point Corporation
PGP Key: 0x14964AC8 200905051154
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8
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