Identify the operation type in rejected exception (#60138)

Currently, we do not categorize the operation type in the rejection
exception messsage when we reject an indexing operation for indexing
memory limits. This commit fixes this to ensure that it is identified as
coordinating, primary, or replica.

server/src/main/java/org/elasticsearch/index/IndexingPressure.java

@@ -68,7 +68,7 @@ public class IndexingPressure {
                 "coordinating_and_primary_bytes=" + bytesWithoutOperation + ", " +
                 "replica_bytes=" + replicaWriteBytes + ", " +
                 "all_bytes=" + totalBytesWithoutOperation + ", " +
-                "operation_bytes=" + bytes + ", " +
+                "coordinating_operation_bytes=" + bytes + ", " +
                 "max_coordinating_and_primary_bytes=" + primaryAndCoordinatingLimits + "]", false);
         }
         currentCoordinatingBytes.getAndAdd(bytes);
@@ -99,7 +99,7 @@ public class IndexingPressure {
                 "coordinating_and_primary_bytes=" + bytesWithoutOperation + ", " +
                 "replica_bytes=" + replicaWriteBytes + ", " +
                 "all_bytes=" + totalBytesWithoutOperation + ", " +
-                "operation_bytes=" + bytes + ", " +
+                "primary_operation_bytes=" + bytes + ", " +
                 "max_coordinating_and_primary_bytes=" + primaryAndCoordinatingLimits + "]", false);
         }
         currentPrimaryBytes.getAndAdd(bytes);