From: Tom Lane <tgl@sss.pgh.pa.us>
To: Arjun Ranade <ranade@nodalexchange.com>
Cc: Alvaro Aguayo Garcia-Rada <aaguayo@opensysperu.com>
Cc: pgsql-admin <pgsql-admin@postgresql.org>
Subject: Re: PG10 - Out of shared memory / invalid memory alloc request size
Date: Tue, 14 Nov 2017 15:15:29 -0500
Message-ID: <19652.1510690529@sss.pgh.pa.us> (raw)
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Arjun Ranade <ranade@nodalexchange.com> writes:
> We will try that. I am wondering why we need to worry about this in pg10
> whereas we had no issues with shared memory in 9.4
What it looks like to me is something is miscomputing a memory request
size and asking for some silly amount of memory. I think you're dealing
with a software bug, not inadequate configuration.
> Anecdotally it seems that these errors are happening when
> powa_take_snapshot() (Postgres workload analyzer) is running as well but
> I can't confirm that.
The first theory that comes to mind is that powa_take_snapshot() requires
some updates for PG10. I do not know what that function is or where you
got it from, but if there's any C code involved, you need to discuss this
with its developer(s).
regards, tom lane
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To: pgsql-admin@postgresql.org
Cc: tgl@sss.pgh.pa.us, ranade@nodalexchange.com, aaguayo@opensysperu.com
Subject: Re: PG10 - Out of shared memory / invalid memory alloc request size
In-Reply-To: <19652.1510690529@sss.pgh.pa.us>
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