Suppose we have two cluster : A and B
Data from A is getting synced to B every 12 hour. So incremental snapshots from A are getting restored on B.
Suppose on a day, at first 12 hr, index1 was created with 10 docs. Now snapshot was taken and restored to cluster B.
Now on cluster B we have index1 with 10 docs. Suppose I index a document in index1 on cluster B. Now index1 on cluster B has 11 docs. 1 doc is new and present only in cluster B. Cluster A index 1 has 10 docs only.
Now, in next 12 hr, 10 more docs come to index1 in cluster A. So cluster A has now 20 docs. Incremental snapshot is taken and in this snapshot we have 10 new docs of index1.
Now if this incremental snapshot is restored in cluster B will it delete the 11th document which was indexed manually or will 10 new docs will be indexed making the count of index1 in cluster B to 21 docs??
Note: Cluster A index1 has 20 docs now