The LDAP Synchronization task provides a way to improve on the performance of accessing your LDAP server, when it has significant latency.
As opposed to retrieving information from your LDAP server with every request to authenticate a user, or search for user information, ExtraView uses its own lookup tables. The LDAP synchronization task refreshes the information within the ExtraView database on a timed basis, using the value of the poll interval.
The upside of this technique is improved performance. This comes at the expense of ExtraView not having up-to-date information such as new users or password changes, until the task refreshes the information.
This task should only be run on a single node within a clustered environment.