Configuring Group Size

The group size (default value 1) represents the maximum number of data modifications that can be bundled into a single update message. If the network connection appears to be impeding replication, increase the group size to a higher value than the default, such as 10, and recheck replication performance.

When increasing the group size, make sure that the following are true:

• The window size is set significantly higher than the group size.

• The window size divided by the group size is much greater than the value for nsslapd-maxThreadsPerConn under cn=config on the consumer (typically twice as large).

  When the group size is set higher than 1, the supplier does not wait to fill a group before sending updates to the consumer.

To Configure Group Size

You can use DSCC to perform this task. For information, see Directory Service Control Center Interface and the DSCC online help.

Modify the group size.

$ dsconf set-repl-agmt-prop -h host -p port suffix-DN \ consumer-host:consumer-port transport-group-size:value

For example:

$ dsconf set-repl-agmt-prop -h host2 -p 1389 dc=example,dc=com host1:1389 \ transport-group-size:10