Specifies the delay between activity rounds for WAL sender processes.

In each round the WAL sender sends any WAL accumulated since the last

round to the standby server. It then sleeps for

<varname>wal_sender_delay</> milliseconds, and repeats. The default

value is 200 milliseconds (<literal>200ms</>).

<varname>wal_sender_delay</> milliseconds, and repeats. The sleep

is interrupted by transaction commit, so the effects of a committed

transaction are sent to standby servers as soon as the commit

happens, regardless of this setting. The default value is one second

(<literal>1s</>).

Note that on many systems, the effective resolution of sleep delays is

10 milliseconds; setting <varname>wal_sender_delay</> to a value that

is not a multiple of 10 might have the same results as setting it to

intmax_wal_senders=0;/* the maximum number of concurrent walsenders */

intWalSndDelay=200;/* max sleep time between some actions */

intWalSndDelay=1000;/* max sleep time between some actions */

},

&WalSndDelay,

200,1,10000,NULL,NULL

1000,1,10000,NULL,NULL

},

{

#max_wal_senders = 0# max number of walsender processes

# (change requires restart)

#wal_sender_delay =200ms# walsender cycle time, 1-10000 milliseconds

#wal_sender_delay =1s# walsender cycle time, 1-10000 milliseconds

#wal_keep_segments = 0# in logfile segments, 16MB each; 0 disables

#vacuum_defer_cleanup_age = 0# number of xacts by which cleanup is delayed