On Tue, Aug 18, 2009 at 2:41 PM, Kevin
> On Tuesday 18 August 2009 13:37:12 Tom Lane wrote:
>> Kevin Kempter <kevink(at)consistentstate(dot)com> writes:
>> > INFO: "action_rollup_notifier": found 0 removable, 34391214 nonremovable
>> > row versions in 152175 pages
>> > DETAIL: 22424476 dead row versions cannot be removed yet.
>> > Anyone have any suggestions per why these rows cannot be removed yet?
>> You've got an open transaction that's older than the one that deleted
>> those rows (or at least started before the latter committed).
>> pg_stat_activity might be helpful in fingering the culprit.
>> regards, tom lane
> Does the use of serialized transactions affect this in any way?
Nope, just an open transaction of any kind.
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