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Search engine shutdown call from the Estore instnace

 When the estore or commerce instances are restarted the routing system service can send shut down requests to stale engines, this can be caused because of any of the following.

1. Some other instance marked the engine as stopped in the DB (This can be caused because the machine could not reach the host running the engine)
2. The eStore instance is using a different search schema that has data about the search engine host and is marked as stopped in that DB.

To avoid this overrride \atg\search\routing\RoutingSystemService.properties by setting
cleanUpStrayEng=false.

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