(pulsar) branch master updated: [fix][broker] Skip backlog-quota eviction on fenced/closing topics (#25684)

[lhotari]

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lhotari pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
     new 1471f9f943a [fix][broker] Skip backlog-quota eviction on 
fenced/closing topics (#25684)
1471f9f943a is described below

commit 1471f9f943a39454268a7b5028d37abbfb652635
Author: Lari Hotari <lhot...@users.noreply.github.com>
AuthorDate: Wed May 6 11:05:26 2026 +0300

    [fix][broker] Skip backlog-quota eviction on fenced/closing topics (#25684)
---
 .../org/apache/pulsar/broker/service/BacklogQuotaManager.java | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git 
a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BacklogQuotaManager.java
 
b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BacklogQuotaManager.java
index da0d7ccd4ae..686e2244b56 100644
--- 
a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BacklogQuotaManager.java
+++ 
b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BacklogQuotaManager.java
@@ -94,6 +94,17 @@ public class BacklogQuotaManager {
      */
     public void handleExceededBacklogQuota(PersistentTopic persistentTopic, 
BacklogQuotaType backlogQuotaType,
                                            boolean 
preciseTimeBasedBacklogQuotaCheck) {
+        if (persistentTopic.isFenced() || 
persistentTopic.isClosingOrDeleting()) {
+            // Skip eviction work on a topic that is being torn down or 
transiently fenced.
+            // Mutating cursors here (skipEntries / markDeletePosition) 
contends with the
+            // delete path and can keep namespace force-delete from completing 
in time;
+            // the entries are about to be discarded anyway.
+            log.debug()
+                    .attr("topic", persistentTopic.getName())
+                    .attr("backlogQuotaType", backlogQuotaType)
+                    .log("Skipping backlog-quota eviction on fenced/closing 
topic");
+            return;
+        }
         BacklogQuota quota = persistentTopic.getBacklogQuota(backlogQuotaType);
         BacklogQuotaMetrics topicBacklogQuotaMetrics =
                 
persistentTopic.getPersistentTopicMetrics().getBacklogQuotaMetrics();