Wake WALSender to reduce data loss at failover for async commit. WALSender now woken up after each background flush by WALwriter, avoiding multi-second replication delay for an all-async commit workload. Replication delay reduced from 7s with default settings to 200ms, allowing significantly reduced data loss at failover.
Andres Freund and Simon Riggs Branch ------ REL9_0_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/090e8a984cf1a8a3ef7f6db6dc919f843902d80c Modified Files -------------- src/backend/access/transam/xlog.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
