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Just a quick top-post to thank you all for this fix guys !
Cheers,
On 15/02/2013 18:43, Heikki Linnakangas wrote:
> On 15.02.2013 19:16, Fujii Masao wrote:
>> On Sat, Feb 16, 2013 at 2:07 AM, Heikki Linnakangas
>> <hlinnakangas@vmware.com> wrote:
>>> On 15.02.2013 18:10, Fujii Masao wrote:
>>>>
>>>> At least in 9.2, when the archived file is restored into
>>>> pg_xlog, its xxx.done archive status file is created. So we
>>>> don't need to check InArchiveRecovery when deleting old WAL
>>>> files. Checking whether xxx.done exists is enough.
>>>
>>> Hmm, what about streamed WAL files? I guess we could go back to
>>> the pre-9.2 coding, and check WalRcvInProgress(). But I didn't
>>> actually like that too much, it seems rather random that old
>>> streamed files are recycled when wal receiver is running at the
>>> time of restartpoint, and otherwise not. Because whether wal
>>> receiver is running at the time the restartpoint happens has
>>> little to do with which files were created by streaming
>>> replication. With the right pattern of streaming files from the
>>> master, but always being teporarily disconnected when the
>>> restartpoint runs, you could still accumulate WAL files
>>> infinitely.
>>
>> Walreceiver always creates .done file when it closes the
>> already-flushed WAL file and switches WAL file to next. So we
>> also don't need to check WalRcvInProgress().
>
> Ah, I missed that part of the patch.
>
> Okay, agreed, that's a better fix. I committed your forward-port of
> the 9.2 patch to master, reverted my earlier fix for this bug, and
> simply removed the
> InArchiveRecovery/ArchiveRecoveryInProgress()/RecoveryInProgress()
> condition from RemoveOldXlogFiles().
>
> - Heikki
- --
Jehan-Guillaume de Rorthais
http://www.dalibo.com
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