On 07/18/2018 02:13 AM, Raghavendra Rao J S V wrote:
We have thousands of tables. But out of those tables, around 20 to 40
tables are always busy due to that those tables are bloating.
Define bloating?
In order to avoid this we are running a shell script which performs
vacuum full on the tables which has more than ten thousand dead tuples.
Out of how many live tuples?
While running this we are stopping all application processors and
running vacuum full on the tables which has more dead tuples.
1. Is it ok to run *vacuum full verbose* command for live database for
the tables which has more dead tuples(greater than)?
2. Does it cause any *adverse *effect?
https://www.postgresql.org/docs/10/static/sql-vacuum.html
"FULL
Selects “full” vacuum, which can reclaim more space, but takes much
longer and exclusively locks the table. This method also requires extra
disk space, since it writes a new copy of the table and doesn't release
the old copy until the operation is complete. Usually this should only
be used when a significant amount of space needs to be reclaimed from
within the table.
"
Please clarify me. Thanks in advance.
--
Regards,
Raghavendra Rao J S V
--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx
