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Re: Hard limit on WAL space used (because PANIC sucks) - Mailing list pgsql-hackers

From Heikki Linnakangas
Subject Re: Hard limit on WAL space used (because PANIC sucks)
Date
Msg-id 52DFB623.8080206@vmware.com
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In response to Re: Hard limit on WAL space used (because PANIC sucks)  (Simon Riggs <simon@2ndQuadrant.com>)
Responses Re: Hard limit on WAL space used (because PANIC sucks)  (Simon Riggs <simon@2ndQuadrant.com>)
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On 01/22/2014 02:10 PM, Simon Riggs wrote:
> As Jeff points out, the blocks being modified would be locked until
> space is freed up. Which could make other users wait. The code
> required to avoid that wait would be complex and not worth any
> overhead.

Checkpoint also acquires the content lock of every dirty page in the 
buffer cache...

- Heikki

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