DomGarguilo commented on code in PR #3431:
URL: https://github.com/apache/accumulo/pull/3431#discussion_r1206978775


##########
server/manager/src/main/java/org/apache/accumulo/manager/FateServiceHandler.java:
##########
@@ -740,6 +740,23 @@ public void executeFateOperation(TInfo tinfo, TCredentials 
c, long opid, FateOpe
             
.map(ByteBufferUtil::toText).collect(Collectors.toCollection(TreeSet::new));
 
         KeyExtent extent = new KeyExtent(tableId, endRow, prevEndRow);
+
+        if (splits.stream()
+            .anyMatch(split -> !extent.contains(split) || 
split.equals(extent.endRow()))) {
+          throw new ThriftTableOperationException(tableId.canonical(), null, 
tableOp,
+              TableOperationExceptionType.OTHER,
+              "Split is outside bounds of tablet or equal to the tablets 
endrow");
+        }

Review Comment:
   Not sure if it would be helpful to include more info in these new exception 
messages but if so, we could do something like this:
   
   ```java
   Optional<Text> badSplit = splits.stream()
       .filter(split -> !extent.contains(split) || 
split.equals(extent.endRow())).findAny();
   if (badSplit.isPresent()) {
     Text split = badSplit.orElseThrow();
     throw new ThriftTableOperationException(tableId.canonical(), null, tableOp,
         TableOperationExceptionType.OTHER,
         "Split '" + split + "' is outside bounds of tablet or equal to the 
tablets endrow '"
             + extent.endRow() + "'");
   }
   ```
   
   Similar approach could apply to the other exception as well.



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