Status of the startup process post end of recovery

From: Pavan Deolasee <pavan(dot)deolasee(at)gmail(dot)com>
To: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Status of the startup process post end of recovery
Date: 2013-03-04 12:51:50
Message-ID: CABOikdOwm4V8JauyNY1Nb=6YjDvAR1T+NdVjaEAkz=+a-z2k5Q@mail.gmail.com
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Hello,

While doing some tests, I observed that the "ps" command continues to
display status of the startup process as "recovering <filename>" even
though it has finished the redo and is now performing end-of-recovery
checkpoint. This checkpoint can take a while, a few seconds to a few
minutes depending on the dirty buffers at the end of the recovery. The
"ps" command keep displaying a stale status for all that time. How
about calling set_ps_display() with appropriate status string, say
similar to what is logged by LogCheckpointStart() ? If we do that,
what would be the best place to add that code ? I was thinking adding
that to CreateCheckpoint() itself so that the status is displayed at
all relevant places.

Comments ?

Thanks,
Pavan

--
Pavan Deolasee
http://www.linkedin.com/in/pavandeolasee

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