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Re: Synchronous replication

Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>

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From: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
To: Fujii Masao <masao.fujii@gmail.com>
Cc: Yeb Havinga <yebhavinga@gmail.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2010-08-09T21:22:14Z
Lists: pgsql-hackers 
I wonder if we can continue to rely on the pg_sleep() loop for sleeping 
in walsender. On those platforms where interrupts don't interrupt sleep, 
sending the signal is not going to promptly wake up walsender. That was 
fine before, but any delay is going to be poison to synchronous 
replication performance.

Thoughts?

-- 
   Heikki Linnakangas
   EnterpriseDB   http://www.enterprisedb.com