Document repl-diskless-sync-delay in redis.conf.

1 files changed, 12 insertions, 0 deletions

diff --git a/redis.conf b/redis.conf
index f74d6f512..81dcf5a86 100644
--- a/redis.conf
+++ b/redis.conf
@@ -267,6 +267,18 @@ slave-read-only yes
 # works better.
 repl-diskless-sync no
 
+# When diskless replication is enabled, it is possible to configure the delay
+# the server waits in order to spawn the child that trnasfers the RDB via socket
+# to the slaves.
+#
+# This is important since once the transfer starts, it is not possible to serve
+# new slaves arriving, that will be queued for the next RDB transfer, so the server
+# waits a delay in order to let more slaves arrive.
+#
+# The delay is specified in seconds, and by default is 5 seconds. To disable
+# it entirely just set it to 0 seconds and the transfer will start ASAP.
+repl-diskless-sync-delay 5
+
 # Slaves send PINGs to server in a predefined interval. It's possible to change
 # this interval with the repl_ping_slave_period option. The default value is 10
 # seconds.