PG DB: 8.1.3
  12 DB in the cluster
   
  When I do a full vacuum of the database cluster, at the end I am getting the 
message as follows:
   
  psql:dba_task.sql:1: INFO:  free space map contains 8033993 pages in 1023 
relations
DETAIL:  A total of 8000000 page slots are in use (including overhead).
8201952 page slots are required to track all free space.
Current limits are:  8000000 page slots, 32768 relations, using 49054 KB.
psql:dba_task.sql:1: NOTICE:  number of page slots needed (8201952) exceeds 
max_fsm_pages (8000000)
HINT:  Consider increasing the configuration parameter "max_fsm_pages" to a 
value over 8201952.
   
  My questions are:
   
  1. With out increasing the max_fsm_pages, can I bring down the need for 
fsm_pages by deleting unnecessary tables?
  2. As, the database grows the need for max_fsm_pages grows too, what is the 
best practice? 
  3. As a new postgres DBA, how should one manage this parameter?
   
  Thanks
  Abu Mushayeed

 
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