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Subject: too many clients already
From: "Abraham, Danny" <danny_abraham@xxxxxxx>
Date: Thu, 2 Apr 2020 15:06:03 +0000
Accept-language: en-GB, en-US
Cc: "Abraham, Danny" <danny_abraham@xxxxxxx>

Hi,

Will appreciate a hint here.

Running on a big and stressed AIX platform and receiving lots of "CDTFATAL:  sorry, too many clients already"
and transient difficulty to log in.

Happens on all PG versions (Tested 9.5,10.4,11.5)

Big installation: max_connections is 1200,  shared_buffers is 2GB 

But .. select count(*) from pg_stat_activity   is only 66.

Thanks

Danny

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