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Monitoring: Catch EsRejectedExecutionException when rescheduling the cleaner 

closes elastic/elasticsearch#1900

Original commit: elastic/x-pack-elasticsearch@87efb135b4
This commit is contained in:
Tanguy Leroux 2016-04-04 10:42:54 +02:00
parent 652b69ad7f
commit 115b037f06
1 changed files with 19 additions and 9 deletions
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24
elasticsearch/x-pack/marvel/src/main/java/org/elasticsearch/marvel/cleaner/CleanerService.java
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@ -11,6 +11,7 @@ import org.elasticsearch.common.settings.ClusterSettings;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.util.concurrent.AbstractLifecycleRunnable;
import org.elasticsearch.common.util.concurrent.EsRejectedExecutionException;
import org.elasticsearch.common.util.concurrent.FutureUtils;
import org.elasticsearch.marvel.MarvelSettings;
import org.elasticsearch.marvel.license.MarvelLicensee;
@ -31,8 +32,8 @@ public class CleanerService extends AbstractLifecycleComponent<CleanerService> {
private final ThreadPool threadPool;
private final ExecutionScheduler executionScheduler;
private final List<Listener> listeners = new CopyOnWriteArrayList<>();
private final IndicesCleaner runnable;
private volatile IndicesCleaner runnable;
private volatile TimeValue globalRetention;
CleanerService(Settings settings, ClusterSettings clusterSettings, MarvelLicensee licensee, ThreadPool threadPool,
@ -42,6 +43,7 @@ public class CleanerService extends AbstractLifecycleComponent<CleanerService> {
this.threadPool = threadPool;
this.executionScheduler = executionScheduler;
this.globalRetention = MarvelSettings.HISTORY_DURATION.get(settings);
this.runnable = new IndicesCleaner();
// the validation is performed by the setting's object itself
clusterSettings.addSettingsUpdateConsumer(MarvelSettings.HISTORY_DURATION, this::setGlobalRetention);
@ -55,7 +57,6 @@ public class CleanerService extends AbstractLifecycleComponent<CleanerService> {
@Override
protected void doStart() {
logger.debug("starting cleaning service");
this.runnable = new IndicesCleaner();
threadPool.schedule(executionScheduler.nextExecutionDelay(new DateTime(ISOChronology.getInstance())), executorName(), runnable);
logger.debug("cleaning service started");
}
@ -64,15 +65,14 @@ public class CleanerService extends AbstractLifecycleComponent<CleanerService> {
protected void doStop() {
logger.debug("stopping cleaning service");
listeners.clear();
runnable.cancel();
logger.debug("cleaning service stopped");
}
@Override
protected void doClose() {
logger.debug("closing cleaning service");
if (runnable != null) {
runnable.cancel();
}
logger.debug("cleaning service closed");
// Cleaner runnable should have been cancelled in doStop() method,
// normally called just before this one
}
private String executorName() {
@ -196,7 +196,15 @@ public class CleanerService extends AbstractLifecycleComponent<CleanerService> {
logger.debug("scheduling next execution in [{}] seconds", delay.seconds());
try {
future = threadPool.schedule(delay, executorName(), this);
} catch (EsRejectedExecutionException e) {
if (e.isExecutorShutdown()) {
logger.debug("couldn't schedule new execution of the cleaner, executor is shutting down", e);
} else {
throw e;
}
}
}
@Override
@ -212,9 +220,11 @@ public class CleanerService extends AbstractLifecycleComponent<CleanerService> {
* stopped.
*/
public void cancel() {
if (future.isCancelled() == false) {
FutureUtils.cancel(future);
}
}
}
interface ExecutionScheduler {