DSP: AD2AD: No available DCs for domain error message observed when processing an object (4309870)

Issue

Dirsync encountered error message like the one below when processing an AD Object during sync process.

No available DCs for domain, cannot process LDAP request for object

Upon the finish of the Sync Profile, user noticed group members from another domain in the source forest were not copied to the target forest.

Cause

This error will occur when DirSync can not locate the object based on the object DN in the specified Global Catalog Server. DirSync will search the object based on the DN via the specified DCs in the DC list. (DC stands for Global Catalog Server).

Solution

Ensure GC server will be listed for each domains in the forest which DirSync connects to under the DC list tab.