On 6 October 2012 22:52, Thom Brown <t...@linux.com> wrote:
> On 5 October 2012 15:26, Heikki Linnakangas <heikki.linnakan...@iki.fi> wrote:
>> Use the regular main processing loop also in walsenders.
>>
>> The regular backend's main loop handles signal handling and error recovery
>> better than the current WAL sender command loop does. For example, if the
>> client hangs and a SIGTERM is received before starting streaming, the
>> walsender will now terminate immediately, rather than hang until the
>> connection times out.
>
> This commit seems to have broken the WAL sender in at least one
> scenario.  I have a primary and 2 standbys, standby 1 receiving WAL
> stream from the primary, and standby 2 receiving WAL stream from
> standby 1 (chain configuration).  If I attempt to restart standby 1,
> it hangs and the WAL sender process on standby 1 uses 100% CPU.
>
> The following error is logged too:
> FATAL:  terminating walreceiver process due to administrator command
>
> I can shut down standby 1 without issue only if I shut down standby 2 before 
> it.

This was just a description of the scenario I was using.  The same
occurs with just 1 standby and attempting to shut down the primary.

-- 
Thom


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