From: | Nicola Contu <nicola(dot)contu(at)gmail(dot)com> |
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To: | "pgsql-generallists(dot)postgresql(dot)org" <pgsql-general(at)lists(dot)postgresql(dot)org> |
Cc: | Alessandro Aste <Alessandro(dot)aste(at)gtt(dot)net> |
Subject: | ERROR: too many dynamic shared memory segments |
Date: | 2019-09-11 07:47:38 |
Message-ID: | CAMTZZh0Wv9O=Y1VnqfwZSiw8ocx2bbdORDv2_mZy=pAKG=r+_w@mail.gmail.com |
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Lists: | pgsql-general |
Hello,
We are running postgres 11.5 and in the last two weeks we did :
- upgrade of postgres to 11.5 from 11.4
- increased shared_buffer to 1/3 of the memory
- increased effective_cache_size = 160GB from 120
- increased checkpoint_completion_target = 0.9 from 0.7
- increased checkpoint_timeout = 1h
- increased work_mem = 2GB (this can be set up to 4GB) from 600MB
Since that, in the last two weeks we saw an increment of this error :
ERROR: too many dynamic shared memory segments
Is there any relation between these parameters or the pgsql 11.5 version?
Any help can be appreciated.
Thank you,
Nicola
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