Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

[improve][broker] Add retry for start service unit state channel (ExtensibleLoadManagerImpl only) #23230

Merged
merged 7 commits into from
Sep 4, 2024
+53 −6
Merged

[improve][broker] Add retry for start service unit state channel (ExtensibleLoadManagerImpl only) #23230

Changes from 5 commits
Commits
Show all changes
7 commits
Select commit Hold shift + click to select a range
1e0dc81
Add retry for start service unit state channel
Demogorgon314 Aug 27, 2024
ebad246
Fix test
Demogorgon314 Aug 27, 2024
5989cce
Remove unused change
Demogorgon314 Aug 27, 2024
9d16db2
Use Backoff for delay calculation
Demogorgon314 Aug 30, 2024
2d4f760
Use Thread.sleep
Demogorgon314 Aug 30, 2024
16f9e0d
Add a new field STARTUP_TIMEOUT_SECONDS as the timeout
Demogorgon314 Sep 2, 2024
1b0f2e6
Close the pulsar service after thread been interrupted
Demogorgon314 Sep 3, 2024
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
51 changes: 45 additions & 6 deletions .../main/java/org/apache/pulsar/broker/loadbalance/extensions/ExtensibleLoadManagerImpl.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -99,7 +99,10 @@
import org.apache.pulsar.common.naming.TopicDomain;
import org.apache.pulsar.common.naming.TopicName;
import org.apache.pulsar.common.stats.Metrics;
import org.apache.pulsar.common.util.Backoff;
import org.apache.pulsar.common.util.BackoffBuilder;
import org.apache.pulsar.common.util.FutureUtil;
import org.apache.pulsar.metadata.api.MetadataStoreException;
import org.apache.pulsar.metadata.api.coordination.LeaderElectionState;
import org.slf4j.Logger;

Expand All @@ -122,6 +125,8 @@ public class ExtensibleLoadManagerImpl implements ExtensibleLoadManager, BrokerS

public static final long COMPACTION_THRESHOLD = 5 * 1024 * 1024;

public static final int MAX_RETRY = 5;

private static final String ELECTION_ROOT = "/loadbalance/extension/leader";

public static final Set<String> INTERNAL_TOPICS =
Expand Down Expand Up @@ -401,10 +406,37 @@ public void start() throws PulsarServerException {
this.serviceUnitStateChannel.listen(splitManager);
this.leaderElectionService.start();
pulsar.runWhenReadyForIncomingRequests(() -> {
try {
this.serviceUnitStateChannel.start();
} catch (Exception e) {
failStarting(e);
Backoff backoff = new BackoffBuilder()
.setInitialTime(100, TimeUnit.MILLISECONDS)
.setMax(conf.getMetadataStoreOperationTimeoutSeconds(), TimeUnit.SECONDS)
RobertIndie marked this conversation as resolved.
Show resolved Hide resolved
.create();
int retry = 0;
while (!Thread.currentThread().isInterrupted()) {
try {
brokerRegistry.register();
this.serviceUnitStateChannel.start();
break;
} catch (Exception e) {
log.warn("The broker:{} failed to start service unit state channel. Retrying {} th ...",
pulsar.getBrokerId(), ++retry, e);
try {
Thread.sleep(backoff.next());
} catch (InterruptedException ex) {
log.warn("Interrupted while sleeping.");
// preserve thread's interrupt status
Thread.currentThread().interrupt();
gaoran10 marked this conversation as resolved.
Show resolved Hide resolved
}
failStarting(e);
if (retry >= MAX_RETRY) {
log.error("Failed to start the service unit state channel after retry {} th. "
+ "Closing pulsar service.", retry, e);
try {
pulsar.close();
BewareMyPower marked this conversation as resolved.
Show resolved Hide resolved
} catch (PulsarServerException ex) {
log.error("Failed to close pulsar service.", ex);
}
}
}
}
});
this.antiAffinityGroupPolicyHelper =
Expand Down Expand Up @@ -498,8 +530,15 @@ private void failStarting(Exception ex) {
this.brokerRegistry, ex);
if (this.brokerRegistry != null) {
try {
brokerRegistry.close();
} catch (PulsarServerException e) {
brokerRegistry.unregister();
BewareMyPower marked this conversation as resolved.
Show resolved Hide resolved
} catch (MetadataStoreException e) {
// ignore
}
}
if (this.serviceUnitStateChannel != null) {
try {
serviceUnitStateChannel.close();
} catch (IOException e) {
// ignore
}
}
Expand Down
Loading