> From: "Tom Lane" <tgl@sss.pgh.pa.us>
>> Every transaction takes ExclusiveLock on its own transaction ID. That
>> in itself isn't an issue. You sure you don't see any rows with granted
>> = 'f' while pg_dump is running and everything seems blocked?
>
> yes. during a pg_dump, there are like 30 locks - all of then granted (t)
That makes sense; once you are dumping the 30th table, there will be
about 30 locks, although they should only be AccessShared locks.
> i'll set up pg8.1.1 tomorrow on a new server to check if its db/web or
> server related...
You can expect to see a bunch of AccessShared locks associated with
the transaction used for the pg_dump.
The interesting question is what *else* is trying to grab a lock; that
"something else" is presumably the root of your troubles.
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