Re: standby replication server throws invalid memory alloc requestsize , does not start up

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От Scott Ribe
Тема Re: standby replication server throws invalid memory alloc requestsize , does not start up
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Msg-id 8F8408A0-7FEB-4F32-8E76-F7429DA0B481@elevated-dev.com
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Ответ на standby replication server throws invalid memory alloc request size ,does not start up  (Vijaykumar Jain <vjain@opentable.com>)
Ответы Re: standby replication server throws invalid memory alloc requestsize , does not start up
Re: [External] Re: standby replication server throws invalid memoryalloc request size , does not start up
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You need to worry, very much, that your setup did not preserve data write ordering when the power went out.

- you might have fsync turned off in PG
- you might be using a non-journaled filesystem
- your disks might be cheating on sync commands (consumer grade disks are notorious for this)
- you might be using consumer-grade flash that can't flush its cache on power loss

This highly unlikely to be a PG bug, and you do need to worry that it could have been the master if you had been less
lucky.

--
Scott Ribe
scott_ribe@elevated-dev.com
https://www.linkedin.com/in/scottribe/



> On Jun 28, 2018, at 7:17 AM, Vijaykumar Jain <vjain@opentable.com> wrote:
>
> My only concern was do I need to worry about this error showing up again?



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