What are the pros and cons of closing and reopening of an index.I am using this for updating my synonyms file. Will it have any impact on performance perspective of cluster.I have gone through below link.But didn't find any performance related impacts.
And also when reopen index i am seeing "Cluster health status changed from [RED] to [YELLOW] (reason: [shards started [[appliancesynonym]] ...])." .
Seems like it is restarting the shards.Will it have impact on other indexes when i close one particular index.