The following errors are seen in the copy server log (the copy log on source also denoted by *sync* *svr* log) and the copy never runs. There is no copy client log (the copy log on target also denoted by *sync* *clt* log):
21037240 16/10:00:05 INFO:SyncMessager:0: Launcher is starting client process
21037240 16/10:00:05 INFO:SyncApplication:0: Checking SYNC versions
21037240 16/10:00:06 INFO:SyncApplication:0: Sending configuration and tables
21037240 16/10:00:06 ERROR:SyncMessager:0: An error occurred in the import thread
21037240 16/10:00:06 ERROR:SyncApplication:0: Failed sending config and tables at sync/svr/sync_server.cpp:171
There are two common reasons for this to occur:
There are two SharePlex instances running on source and/or target sharing the port 2501 for copy
OR
There are two SharePlex instances running on source and/or target having the same port # configured for copy due to the setting of SP_OSY_PORT to the same value on both instances.
To get past the issue, either configure both the instances of SharePlex to have different values for SP_OSY_PORT or let one of the instance take the default value of 2501 and set SP_OSY_PORT to a different value for the second instance of SharePlex. When configuring SP_OSY_PORT to a value, ensure that the port to be used by copy is not used by other processes and that the port is not blocked by a firewall.
If copy is only run on one of the instances at any given time, then this issue should not occur.