On Thu, 2007-04-05 at 22:56 +0100, Simon Riggs wrote: > transaction_guarantee.v11.patch
correct files attached > Open Questions > -------------- > > 1. Should the DFC use a standard hash table? Custom code allows both > additional speed and the ability to signal when it fills. > > 2. Should tqual.c update the LSN of a heap page with the LSN of the > transaction commit that it can read from the DF cache? I now think we should update the LSN of the page, but not changed yet. > 3. Should the WALWriter also do the wal_buffers half-full write at the > start of XLogInsert() ? Not that important > 4. The recent changes to remove CheckpointStartLock haven't changed the > code path for deferred transactions, so a similar solution might be > possible there also. Some further discussion required here, I think. That change may actually have introduced a slight risk into the patch. Will raise at review. > 5. Is it correct to do WAL-before-flush for clog only, or should this > be multixact also? Not necessary -- Simon Riggs EnterpriseDB http://www.enterprisedb.com
tg.tar.gz
Description: application/compressed-tar
---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
