exactly figured out what. There are no other sessions but drop database keeps
saying "regression" is being accessed by other users. I do see Autovacuum
touching tables in regression but CheckOtherDBBackends() is supposed to send
it a sigkill if it finds it and it doesn't seem to be doing so.
I've been hacking on unrelated stuff in this database and have caused multiple
core dumps and autovacuum is finding orphaned temp tables. It's possible some
state is corrupted in some way here but I don't see what.
postgres=# select * from pg_stat_activity;
datid | datname | procpid | usesysid | usename | current_query | waiting | xact_start | query_start | backend_start | client_addr | client_port
-------+----------+---------+----------+---------+---------------------------------+---------+-------------------------------+-------------------------------+-------------------------------+-------------+-------------
11505 | postgres | 5616 | 10 | stark | select * from pg_stat_activity; | f | 2008-08-04 11:46:05.438479+01 | 2008-08-04 11:46:05.438956+01 | 2008-08-04 11:45:19.827702+01 | | -1
(1 row)
postgres=# commit;
COMMIT
postgres=# drop database regression;
ERROR: 55006: database "regression" is being accessed by other users
LOCATION: dropdb, dbcommands.c:678
select * from pg_stat_activity;
postgres=# datid | datname | procpid | usesysid | usename | current_query | waiting | xact_start | query_start | backend_start | client_addr | client_port
-------+----------+---------+----------+---------+---------------------------------+---------+-------------------------------+-------------------------------+-------------------------------+-------------+-------------
11505 | postgres | 5616 | 10 | stark | select * from pg_stat_activity; | f | 2008-08-04 11:46:45.619642+01 | 2008-08-04 11:46:45.620115+01 | 2008-08-04 11:45:19.827702+01 | | -1
(1 row)
--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com
Ask me about EnterpriseDB's On-Demand Production Tuning
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