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mmarshall pushed a commit to branch branch-2.8
in repository https://gitbox.apache.org/repos/asf/pulsar.git
The following commit(s) were added to refs/heads/branch-2.8 by this push:
new 3f58951 [Broker] waitingCursors potential heap memory leak (#13939)
3f58951 is described below
commit 3f58951980b4be6ec0d64da5d44879c56a6801d0
Author: gaozhangmin <[email protected]>
AuthorDate: Tue Feb 22 02:18:56 2022 +0800
[Broker] waitingCursors potential heap memory leak (#13939)
(cherry picked from commit 478fd36227c2ede3e1162dd9a4361cffc5dbfceb)
---
.../apache/bookkeeper/mledger/ManagedLedger.java | 7 +++++++
.../bookkeeper/mledger/impl/ManagedLedgerImpl.java | 4 ++++
.../service/persistent/PersistentSubscription.java | 1 +
.../pulsar/broker/admin/CreateSubscriptionTest.java | 21 +++++++++++++++++++++
.../offload/jcloud/impl/MockManagedLedger.java | 5 +++++
5 files changed, 38 insertions(+)
diff --git
a/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/ManagedLedger.java
b/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/ManagedLedger.java
index 0200e25..cd39919 100644
---
a/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/ManagedLedger.java
+++
b/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/ManagedLedger.java
@@ -289,6 +289,13 @@ public interface ManagedLedger {
void deleteCursor(String name) throws InterruptedException,
ManagedLedgerException;
/**
+ * Remove a ManagedCursor from this ManagedLedger's waitingCursors.
+ *
+ * @param cursor the ManagedCursor
+ */
+ void removeWaitingCursor(ManagedCursor cursor);
+
+ /**
* Open a ManagedCursor asynchronously.
*
* @see #openCursor(String)
diff --git
a/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedLedgerImpl.java
b/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedLedgerImpl.java
index b8a21f4..84c975c 100644
---
a/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedLedgerImpl.java
+++
b/managed-ledger/src/main/java/org/apache/bookkeeper/mledger/impl/ManagedLedgerImpl.java
@@ -3409,6 +3409,10 @@ public class ManagedLedgerImpl implements ManagedLedger,
CreateCallback {
}
}
+ public void removeWaitingCursor(ManagedCursor cursor) {
+ this.waitingCursors.remove(cursor);
+ }
+
public boolean isCursorActive(ManagedCursor cursor) {
return activeCursors.get(cursor.getName()) != null;
}
diff --git
a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentSubscription.java
b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentSubscription.java
index 212f61a..56486c2 100644
---
a/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentSubscription.java
+++
b/pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentSubscription.java
@@ -313,6 +313,7 @@ public class PersistentSubscription implements Subscription
{
if (dispatcher != null && dispatcher.getConsumers().isEmpty()) {
deactivateCursor();
+ topic.getManagedLedger().removeWaitingCursor(cursor);
if (!cursor.isDurable()) {
// If cursor is not durable, we need to clean up the
subscription as well
diff --git
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/CreateSubscriptionTest.java
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/CreateSubscriptionTest.java
index e0d1720..2ad45ce 100644
---
a/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/CreateSubscriptionTest.java
+++
b/pulsar-broker/src/test/java/org/apache/pulsar/broker/admin/CreateSubscriptionTest.java
@@ -19,15 +19,22 @@
package org.apache.pulsar.broker.admin;
import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertTrue;
import static org.testng.Assert.fail;
import com.google.common.collect.Lists;
import javax.ws.rs.ClientErrorException;
import javax.ws.rs.core.Response.Status;
+import org.apache.bookkeeper.mledger.impl.ManagedLedgerImpl;
+import org.apache.pulsar.broker.service.persistent.PersistentTopic;
import org.apache.pulsar.client.admin.PulsarAdminException.ConflictException;
+import org.apache.pulsar.client.api.Consumer;
import org.apache.pulsar.client.api.MessageId;
import org.apache.pulsar.client.api.Producer;
+import org.apache.pulsar.client.api.Schema;
import org.apache.pulsar.client.api.ProducerConsumerBase;
+import org.apache.pulsar.client.api.SubscriptionType;
import org.apache.pulsar.common.naming.TopicName;
+import org.awaitility.Awaitility;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
@@ -127,4 +134,18 @@ public class CreateSubscriptionTest extends
ProducerConsumerBase {
Lists.newArrayList("sub-1"));
}
}
+
+ @Test
+ public void testWaitingCurosrCausedMemoryLeak() throws Exception {
+ String topic = "persistent://my-property/my-ns/my-topic";
+ for (int i = 0; i < 10; i ++) {
+ Consumer<String> consumer =
pulsarClient.newConsumer(Schema.STRING).topic(topic)
+
.subscriptionType(SubscriptionType.Failover).subscriptionName("test" +
i).subscribe();
+ Awaitility.await().untilAsserted(() ->
assertTrue(consumer.isConnected()));
+ consumer.close();
+ }
+ PersistentTopic topicRef = (PersistentTopic)
pulsar.getBrokerService().getTopicReference(topic).get();
+ ManagedLedgerImpl ml =
(ManagedLedgerImpl)(topicRef.getManagedLedger());
+ assertEquals(ml.getWaitingCursorsCount(), 0);
+ }
}
diff --git
a/tiered-storage/jcloud/src/test/java/org/apache/bookkeeper/mledger/offload/jcloud/impl/MockManagedLedger.java
b/tiered-storage/jcloud/src/test/java/org/apache/bookkeeper/mledger/offload/jcloud/impl/MockManagedLedger.java
index 229cd66..907aba6 100644
---
a/tiered-storage/jcloud/src/test/java/org/apache/bookkeeper/mledger/offload/jcloud/impl/MockManagedLedger.java
+++
b/tiered-storage/jcloud/src/test/java/org/apache/bookkeeper/mledger/offload/jcloud/impl/MockManagedLedger.java
@@ -138,6 +138,11 @@ public class MockManagedLedger implements ManagedLedger {
}
@Override
+ public void removeWaitingCursor(ManagedCursor cursor) {
+
+ }
+
+ @Override
public void asyncOpenCursor(String name, AsyncCallbacks.OpenCursorCallback
callback, Object ctx) {
}
