[pulsar] branch master updated: [improve][broker] Added isActive in ManagedCursorImpl (#19341)

[mmerli]

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mmerli pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/pulsar.git


The following commit(s) were added to refs/heads/master by this push:
     new 96fb7dab7a1 [improve][broker] Added isActive in ManagedCursorImpl 
(#19341)
96fb7dab7a1 is described below

commit 96fb7dab7a1bc260d8ee3c9d5df15de6863ee15b
Author: Heesung Sohn <103456639+heesung...@users.noreply.github.com>
AuthorDate: Sat Jan 28 08:37:13 2023 -0800

    [improve][broker] Added isActive in ManagedCursorImpl (#19341)
---
 .../apache/bookkeeper/mledger/impl/ManagedCursorImpl.java   | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git 
a/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
 
b/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
index 5b351c99649..34cd26274ff 100644
--- 
a/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
+++ 
b/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedCursorImpl.java
@@ -218,6 +218,9 @@ public class ManagedCursorImpl implements ManagedCursor {
     private static final String COMPACTION_CURSOR_NAME = "__compaction";
     private volatile boolean cacheReadEntry = false;
 
+    // active state cache in ManagedCursor. It should be in sync with the 
state in activeCursors in ManagedLedger.
+    private volatile boolean isActive = false;
+
     class MarkDeleteEntry {
         final PositionImpl newPosition;
         final MarkDeleteCallback callback;
@@ -1208,19 +1211,23 @@ public class ManagedCursorImpl implements ManagedCursor 
{
 
     @Override
     public void setActive() {
-        if (!alwaysInactive) {
+        if (!isActive && !alwaysInactive) {
             ledger.activateCursor(this);
+            isActive = true;
         }
     }
 
     @Override
     public boolean isActive() {
-        return ledger.isCursorActive(this);
+        return isActive;
     }
 
     @Override
     public void setInactive() {
-        ledger.deactivateCursor(this);
+        if (isActive) {
+            ledger.deactivateCursor(this);
+            isActive = false;
+        }
     }
 
     @Override