Fix the logic in libpqrcv_receive() to determine if there's any incoming data that can be read without blocking. It used to conclude that there isn't, even though there was data in the socket receive buffer. That lead walreceiver to flush the WAL after every received chunk, potentially causing big performance issues.
Backpatch to 9.0, because the performance impact can be very significant. Branch ------ master Details ------- http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=a5a02a744555789ab8390dbf57271e9d07127602 Modified Files -------------- .../libpqwalreceiver/libpqwalreceiver.c | 35 +++++++++---------- 1 files changed, 17 insertions(+), 18 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
