SHARD_DEMOTION_CWOBJ1547=CWOBJ1547I: {0} (demoting {1} to {2}) in transition.
Explanation
Specified shard is in a transitional state. The message indicates the state of the shard and the state the shard will become after transition completes. There will likely be an additional message printed later in the log indicating the new state of the shard.
User response
No action is required.