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15.20. Setting Replication Timeout Periods

Suppliers must have an exclusive connection to a consumer to send updates to the directory. As mentioned in Section 15.4.3, “Preventing Monopolization of a Consumer in Multi-Supplier Replication”, it is possible to configure a wait time for suppliers attempting to connect to a consumer, so that the supplier does not hang while the consumer is tied up with another supplier.
It is also possible to set a timeout period for a supplier, so that it does not stay connected to a consumer interminably attempting to send updates over a slow or broken connection.
There are two attributes which set the timeout period:
  • nsDS5ReplicaTimeout sets the number of seconds that the replication operation waits for a response from the consumer before timing out and failing. To set the optimum number, check the access logs to see the average amount of time that the replication process takes, and set the timeout period accordingly.
  • nsDS5DebugReplicaTimeout sets the timeout period for the replication operation when debug logging is enabled. This setting may be appreciably higher than the nsDS5ReplicaTimeout setting because debug logging can slow down directory operations. This attribute can optionally set an error log level where this parameter is applied; the default is replication debugging (8192).
Both of these attributes are set in the replication agreement of the replicated suffix:
# ldapmodify -D "cn=Directory Manager" -W -x

dn: cn=example-agreement,cn=replica,cn=dc\3Dexample\2Cdc\3Dcom,cn=mapping tree,cn=config
changetype: modify
add: nsDS5ReplicaTimeout
nsDS5ReplicaTimeout: 600
-
add: nsDS5DebugReplicaTimeout
nsDS5DebugReplicaTimeout: 6000