Re: Strange problem
From: Mladen Gogala <gogala.mladen_at_gmail.com>
Date: Mon, 1 May 2017 00:57:08 -0400
Message-ID: <4a1f000f-fabd-ae1d-d8a8-bfd4df6c1c49_at_gmail.com>
Date: Mon, 1 May 2017 00:57:08 -0400
Message-ID: <4a1f000f-fabd-ae1d-d8a8-bfd4df6c1c49_at_gmail.com>
On 04/30/2017 11:35 PM, Mark W. Farnham wrote:
> It’s probably something completely different,
John Cleese in a bikini?
https://www.youtube.com/watch?v=nxNyoAMqRXQ
> but I think it IS likely that dbw0 is somehow losing write authority
I am still not quite convinced that ZFS is completely stable. I set
filesystemio_options to "none", increased the number of DBWR processes
and their slaves. Not everybody likes ZFS, as can be seen here:
http://www.eall.com.br/blog/?p=2481
I know that direct IO and asynchronous IO put quite heavy requirements
on both the file system and the OS, so I decided that removing that
would be the first thing to try.
-- Mladen Gogala Oracle DBA Tel: (347) 321-1217 -- http://www.freelists.org/webpage/oracle-lReceived on Mon May 01 2017 - 06:57:08 CEST