| From: | ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp> |
|---|---|
| To: | "Simon Riggs" <simon(at)2ndquadrant(dot)com>, <pgsql-patches(at)postgresql(dot)org> |
| Subject: | Re: Reviewers Guide to Deferred Transactions/TransactionGuarantee |
| Date: | 2007-04-10 11:46:54 |
| Message-ID: | 20070410195953.8FC6.ITAGAKI.TAKAHIRO@oss.ntt.co.jp |
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| Lists: | pgsql-hackers pgsql-patches |
"Simon Riggs" <simon(at)2ndquadrant(dot)com> wrote:
> > transaction_guarantee.v11.patch
> correct files attached
This is a small fix to transaction_guarantee patch.
WAL writer needs PGSharedMemoryReAttach() on EXEC_BACKEND platforms.
Other changes are only for suppressing warnings.
We might also need to increase NUM_AUXILIARY_PROCS (=3) for WAL writer,
but I didn't change it in the patch. (I don't know why the value is 3
-- bgwriter, autovacuum launcher and ... what?)
BTW, the following TODO item comes to my mind:
| Allow WAL traffic to be streamed to another server for stand-by replication
We have to open sockets to another server when we want to stream WAL.
If there were WAL writer, we can save the number of those sockets.
Regards,
---
ITAGAKI Takahiro
NTT Open Source Software Center
| Attachment | Content-Type | Size |
|---|---|---|
| transaction_guarantee.v11fix.patch | application/octet-stream | 2.6 KB |
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