VACUUM VERBOSE ANALYZE taking long time to process.

Hi,
We have a table which consists of 3 millions of records and when we try to
delete them and run VACUUM VERBOSE ANALYZE on it in production environment ,
it takes 6/7 hours to process.

our understanding is that ,there are other processes running in the prod
environment which may acquire lock on this table and due to this vacuum
keeps waiting continuously for getting lock and due to this it takes long
time to finish .

can any body suggest me a solution by which we can reduce the time to 1 to 2
hours ?


please reply me on this with your suggestions .



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