[pgpool-general: 2120] Re: Suggestion about two datacenters connected through WAN

Tatsuo Ishii ishii at postgresql.org
Wed Sep 11 18:01:53 JST 2013

>>> Hi Tatsuo.
>>>> One thing you might want to use for this is, "trusted_servers". 
>>>> Usually
>>> you register router IPs you trust (pgpool should be able to reach the
>>> router) for this. In the split brain case, if pgpool in TC1 or TC2 
>>> finds that it cannot reach the IP anymore, it sucides to avoid going 
>>> the split brain.
>>> I will definetely try trusted_servers option.
> Is it the requirement to have a watchdog enabled for trusted_servers option
> to work?

Yes. You need activate watchdog to enable trusted_servers.
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp

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