| From: | Fujii Masao <masao(dot)fujii(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Streaming replication and non-blocking I/O |
| Date: | 2009-12-15 06:07:20 |
| Message-ID: | 3f0b79eb0912142207s30c7176fnb4b7553e7f07100e@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Dec 15, 2009 at 4:11 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Hm. Perhaps it should be a loadable plugin and not hard-linked into the
> backend? Compare dblink.
You mean that such plugin is supplied in shared_preload_libraries,
a new process is forked and the shared-memory related to walreceiver
is created by using shmem_startup_hook? Since this approach would
solve the problem discussed previously, ISTM this makes sense.
http://archives.postgresql.org/pgsql-hackers/2009-11/msg00031.php
Some additional code might be required to control the termination
of walreceiver.
Regards,
--
Fujii Masao
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center
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