(accumulo) branch main updated: fixes bug in ondemand tablet hosting (#4998)

[kturner]

This is an automated email from the ASF dual-hosted git repository.

kturner pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/accumulo.git


The following commit(s) were added to refs/heads/main by this push:
     new e41cda6460 fixes bug in ondemand tablet hosting (#4998)
e41cda6460 is described below

commit e41cda6460187ff871c2b45b652af76cecfbf251
Author: Keith Turner <ktur...@apache.org>
AuthorDate: Fri Oct 18 10:34:38 2024 -0400

    fixes bug in ondemand tablet hosting (#4998)
    
    When a hosting request was sent to the manager and the manager
    determined there was nothing to do it would attempt to create a batch
    scanner with an empty set of ranges and this would fail.  Added a check
    to see if the ranges were empty.
---
 .../src/main/java/org/apache/accumulo/manager/TabletGroupWatcher.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git 
a/server/manager/src/main/java/org/apache/accumulo/manager/TabletGroupWatcher.java
 
b/server/manager/src/main/java/org/apache/accumulo/manager/TabletGroupWatcher.java
index 9ebe9eee42..69f96f89b7 100644
--- 
a/server/manager/src/main/java/org/apache/accumulo/manager/TabletGroupWatcher.java
+++ 
b/server/manager/src/main/java/org/apache/accumulo/manager/TabletGroupWatcher.java
@@ -371,7 +371,9 @@ abstract class TabletGroupWatcher extends 
AccumuloDaemonThread {
         }
       });
 
-      processRanges(ranges);
+      if (!ranges.isEmpty()) {
+        processRanges(ranges);
+      }
     } finally {
       inProgress.forEach(hostingRequestInProgress::remove);
     }