How to check, when replicas are really created

I use ElasticSeach 6.5
To change index mappings I am issuing reindexing operation.
For faster reindexing, I set number_of_replicas to 0 for a new index (that I am reindexing into).
After reindexing is finished I set number_of_replicas to 1. But this operation (setting of index parameter) returns immediately. Because of that, I think, that right after this post replicas are not created fully. It's too fast for big index.
How to check if replicas are really fully created and populated, so I can delete the old index and be sure, that data is safe in case of some of the node's failure?

You should wait for the cluster health to report green, indicating that all replicas have been successfully allocated.

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.