>> commit 728bd991c3c4389fb39c45dcb0fe57e4a1dccd71 >> Author: Simon Riggs <simon@2ndQuadrant.com> >> Date: Tue Apr 4 15:56:56 2017 -0400 >> >> Speedup 2PC recovery by skipping two phase state files in normal path > > Thanks Jeff for your tests. > > So that's now two crash bugs in as many days and lack of clarity about > how to fix it. >
The issue seems to be that a prepared transaction is yet to be committed. But autovacuum comes in and causes the clog to be truncated beyond this prepared transaction ID in one of the runs.
We only add the corresponding pgproc entry for a surviving 2PC transaction on completion of recovery. So could be a race condition here. Digging in further.
Regards,
Nikhils
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Nikhil Sontakke http://www.2ndQuadrant.com/ PostgreSQL/Postgres-XL Development, 24x7 Support, Training & Services
