EDirectory Synchronization Tips


EDirectory Synchronization EDirectory Performance Tuning#

In EDirectory (40101.29) and later some EDirectory Background Processes have been redesigned to cater to large, dynamic environments.

eDirectory Support recommend that you set the Background Process Delay Settings to a Hard Limit to 5ms and enable Asynchronous Outbound Synchronization. However, if the CPU utilization goes high, increase the sleep duration.

eDirectory Support reported lab tests were performed on a setup of 10 servers with the following settings: Hard Limit- 0ms, Asynchronous Outbound Synchronization - enabled, and Async Dispatcher Thread Delay - 0ms. The tests have shown that replication is 7 times faster than with the default settings. During this test, no other client operations were performed.

Enabling EDirectory Synchronization Tips may lead to increased CPU and I/O utilization at the receiving server. To avoid this, you can set a delay in sending the packets by specifying a delay interval in Async Dispatcher NDS Thread Delay. You can set this delay interval between 0 to 999 milliseconds. The default value is zero milliseconds.
To reap the best benefits of the performance of your systems with these scalability enhancements, you must be on EDirectory (40101.29) or later on all servers. Even if there are some older versions in the replica ring, there is improvement in performance.


Removing a Partition#

When partitioning notes for large trees and removing a partition, you can speed things up by making all replicas R/O except Master.

Then Merge the partition. This is what happens when the Join takes place anyhow and this adds soem control to the process.



More Information#

There might be more information for this subject on one of the following: