| From: | Simon Riggs <simon(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Sync Rep v19 |
| Date: | 2011-03-06 21:33:38 |
| Message-ID: | 1299447218.1696.5536.camel@ebony |
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| Lists: | pgsql-hackers |
On Sun, 2011-03-06 at 16:51 +0900, Fujii Masao wrote:
> One comment; what about introducing built-in function to wake up all the
> waiting backends? When replication connection is closed, if we STONITH
> the standby, we can safely (for not physical data loss but logical one)
> switch the primary to standalone mode. But there is no way to wake up
> the waiting backends for now. Setting synchronous_replication to OFF
> and reloading the configuration file doesn't affect the existing waiting
> backends. The attached patch introduces the "pg_wakeup_all_waiters"
> (better name?) function which wakes up all the backends on the queue.
Will apply this as a separate commit.
--
Simon Riggs http://www.2ndQuadrant.com/books/
PostgreSQL Development, 24x7 Support, Training and Services
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