Dump/Restore vs Vacuum Full

[Adi Alurkar]

Greetings,

Are there any differences, advantages of running a dump/restore vs
running the following:1)REINDEX all the tables in all the databases,
2)VACUUM FULL ANALYZE on all the databases

Assuming the following
1) the system can be offline.
2) PG version 7.4.x
3) pg_autovacuum running as a daemon with 30 minutes sleep but have had
a few occasions where pg_autovacuum had to be killed and restarted.
4) FSM settings are set > than required by VACUUM ANALYZE VERBOSE
"test".

-Adi


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[Adi Alurkar]

Any comments ?
knock knock!! is this thing ON?

Post by Adi Alurkar
Greetings,
Are there any differences, advantages of running a dump/restore vs
running the following:1)REINDEX all the tables in all the databases,
2)VACUUM FULL ANALYZE on all the databases
Assuming the following
1) the system can be offline.
2) PG version 7.4.x
3) pg_autovacuum running as a daemon with 30 minutes sleep but have
had a few occasions where pg_autovacuum had to be killed and
restarted.
4) FSM settings are set > than required by VACUUM ANALYZE VERBOSE
"test".
-Adi
---------------------------(end of
broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match

--
Adi Alurkar (DBA sf.NET) <***@vasoftware.com>
1024D/79730470 A491 5724 74DE 956D 06CB D844 6DF1 B972 7973 0470



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[Gaetano Mendola]

Post by Adi Alurkar
Any comments ?
knock knock!! is this thing ON?

Post by Adi Alurkar
Greetings,
Are there any differences, advantages of running a dump/restore vs
running the following:1)REINDEX all the tables in all the databases,
2)VACUUM FULL ANALYZE on all the databases
Assuming the following
1) the system can be offline.
2) PG version 7.4.x
3) pg_autovacuum running as a daemon with 30 minutes sleep but have
had a few occasions where pg_autovacuum had to be killed and restarted.
4) FSM settings are set > than required by VACUUM ANALYZE VERBOSE "test".

Go for a vacuum full and reindex of all tables. The advantages are that
the dump/restore is longer if your vacuum the database quite enough

BTW, with 7.4.x there is no needs to run vacuum full so much

Regards
Gaetano Mendola