Re: libpq changes for synchronous replication
От | Simon Riggs |
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Тема | Re: libpq changes for synchronous replication |
Дата | |
Msg-id | 1285000014.1733.5757.camel@ebony обсуждение исходный текст |
Ответ на | libpq changes for synchronous replication (Fujii Masao <masao.fujii@gmail.com>) |
Ответы |
Re: libpq changes for synchronous replication
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Список | pgsql-hackers |
On Fri, 2010-09-17 at 18:22 +0900, Fujii Masao wrote: > On Fri, Sep 17, 2010 at 5:09 PM, Heikki Linnakangas > <heikki.linnakangas@enterprisedb.com> wrote: > > That said, there's a few small things that can be progressed regardless of > > the details of synchronous replication. There's the changes to trigger > > failover with a signal, and it seems that we'll need some libpq changes to > > allow acknowledgments to be sent back to the master regardless of the rest > > of the design. We can discuss those in separate threads in parallel. > > Agreed. The attached patch introduces new function which is used > to send ACK back from walreceiver. The function sends a message > to XLOG stream by calling PQputCopyData. Also I allowed PQputCopyData > to be called even during COPY OUT. Does this differ from Zoltan's code? -- Simon Riggs www.2ndQuadrant.comPostgreSQL Development, 24x7 Support, Training and Services
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