Pause the service.
This will wait for any current execution of the service polling to finish.
Can be restarted with start()
Returns true if the index on the invoking node can be rebuilt from the information contained in the
If the ReplicatedIndexOperationStore is empty then it is assumed the index can be rebuilt.
true if the index can be rebuilt
Reset the index count to the last entry in the NodeIndexOperation table for each node.
This is done to mark the current state before getting a new index copy or performing a full reindex.
It would normally be done immediately following a pause() of the service.
shuts down this service - this must be the last operation performed on this service;