Re: Streaming replication, and walsender during recovery
От | Simon Riggs |
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Тема | Re: Streaming replication, and walsender during recovery |
Дата | |
Msg-id | 1263886870.3642.6161.camel@ebony обсуждение исходный текст |
Ответ на | Re: Streaming replication, and walsender during recovery (Fujii Masao <masao.fujii@gmail.com>) |
Ответы |
Re: Streaming replication, and walsender during recovery
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Список | pgsql-hackers |
On Tue, 2010-01-19 at 15:04 +0900, Fujii Masao wrote: > > > > There is an ERROR, but no problem AFAICS. The tli isn't set until end of > > recovery because it doesn't need to have been set yet. That shouldn't > > prevent retrieving WAL data. > > OK. Here is the patch which supports a walsender process during recovery; > > * Change walsender so as to send the WAL written by the walreceiver > if it has been started during recovery. > * Kill the walsenders started during recovery at the end of recovery > because replication cannot survive the change of timeline ID. Good patch. I think we need to add a longer comment explaining the tli issues. I agree with your handling of them. It would be useful to have the ps display differentiate between multiple walsenders, and in this case have it indicate cascading also. -- Simon Riggs www.2ndQuadrant.com
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