shm

From: Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
To: pgsql-admin <pgsql-admin(at)postgresql(dot)org>
Subject: shm
Date: 2020-03-05 14:43:49
Message-ID: 565DBAD4-E79D-4EE0-89C4-ABE33AD0C0A7@elevated-dev.com
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What is POSIX shared memory used for anymore? Shared buffers now defaults to mmap, right? So when I run out of shm in Kubernetes because of the 64MB limit, what is actually causing it to run out?

(I know about creating the memory-based volume and mounting it at /dev/shm, and have implemented that workaround. Still want to know what is causing this memory use.)

--
Scott Ribe
scott_ribe(at)elevated-dev(dot)com
https://www.linkedin.com/in/scottribe/

Responses

  • Re: shm at 2020-03-05 14:51:45 from Tom Lane
  • Re: shm at 2020-03-05 16:10:56 from Imre Samu

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