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unexpected "ERROR: concurrent delete in progress"

From: Jon Nelson <jnelson+pgsql(at)jamponi(dot)net>
To: pgsql-bugs(at)postgresql(dot)org
Subject: unexpected "ERROR: concurrent delete in progress"
Date: 2010-12-07 19:51:07
Message-ID: AANLkTimd_Zx0wbs9KazRbO11jD301=9p=KpUXqij9oGr@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-bugs
While tracking down some issues that /might/ be kernel related, I ran
into an error message:

ERROR:  concurrent delete in progress

With this SQL in a file (t.sql):

begin;
create temporary table foo as select x as a, ARRAY[x] as b FROM
generate_series(1, 10000000 ) AS x;
create index foo_a_idx on foo (a);
create index foo_b_idx on foo USING GIN (b);
rollback;

I had issued this bash:

while true; do psql -f t.sql test >> out 2>&1; done

and after a dozen or so iterations I encountered that error message.
Now, it *might* be kernel related, but what else might it be?
I'm on Linux x86_64, using postgresql 8.4.5.


-- 
Jon

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Next:From: Tom LaneDate: 2010-12-07 20:19:23
Subject: Re: unexpected "ERROR: concurrent delete in progress"
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Subject: Re: i need some help on installing all the stuff

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