On 1/5/17 4:56 PM, Michael Banck wrote:
>> You can't actually change the other two without changing wal_level.
> That actually goes both ways: I recently saw a server not start cause we
> were experimenting with temporarily setting wal_level to minimal for
> initial bulk loading, but did not reduce max_wal_senders back to zero.
> So it failed at startup with 'FATAL:  WAL streaming (max_wal_senders >
> 0) requires wal_level "replica" or "logical"'.

I think that was the point:  You can't change the default of
max_wal_senders without also changing the default of wal_level.

Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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