Dmitry O Litvintsev wrote:
> Hi
> 
> Since I have posted this nothing really changed. I am starting to panic 
> (mildly).  

...

> vacuum_cost_delay = 50ms

Most likely, this value is far too high.  You're causing autovacuum to
sleep for a very long time with this setting.  Hard to say for certain
without seeing the cost_limit value and the other related parameters,
but it's most certainly what's causing you pain.  The default of 20ms is
already too high for most users.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


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