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Catch RejectedExceutionException in ZenPing et al. 

If nodes are shutting down we close thread pools and throw
'EsRejectedExcutionException'. This commit handles these exceptions
gracefully if throw during Ping execution.
This commit is contained in:
Simon Willnauer 2013-09-28 20:57:58 +02:00
parent 6b6a468327
commit 1f906804ff
3 changed files with 26 additions and 14 deletions
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4
src/main/java/org/elasticsearch/discovery/zen/ping/ZenPing.java
View File

@ -48,7 +48,9 @@ public interface ZenPing extends LifecycleComponent<ZenPing> {
void onPing(PingResponse[] pings);
}
public class PingResponse implements Streamable {
public static class PingResponse implements Streamable {
public static PingResponse[] EMPTY = new PingResponse[0];
private ClusterName clusterName;

9
src/main/java/org/elasticsearch/discovery/zen/ping/ZenPingService.java
View File

@ -32,6 +32,7 @@ import org.elasticsearch.common.network.NetworkService;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.util.concurrent.ConcurrentCollections;
import org.elasticsearch.common.util.concurrent.EsRejectedExecutionException;
import org.elasticsearch.discovery.zen.DiscoveryNodesProvider;
import org.elasticsearch.discovery.zen.ping.multicast.MulticastZenPing;
import org.elasticsearch.discovery.zen.ping.unicast.UnicastHostsProvider;
@ -144,7 +145,12 @@ public class ZenPingService extends AbstractLifecycleComponent<ZenPing> implemen
ImmutableList<? extends ZenPing> zenPings = this.zenPings;
CompoundPingListener compoundPingListener = new CompoundPingListener(listener, zenPings);
for (ZenPing zenPing : zenPings) {
try {
zenPing.ping(compoundPingListener, timeout);
} catch (EsRejectedExecutionException ex) {
logger.debug("Ping execution rejected", ex);
compoundPingListener.onPing(null);
}
}
}
@ -152,15 +158,12 @@ public class ZenPingService extends AbstractLifecycleComponent<ZenPing> implemen
private final PingListener listener;
private final ImmutableList<? extends ZenPing> zenPings;
private final AtomicInteger counter;
private ConcurrentMap<DiscoveryNode, PingResponse> responses = ConcurrentCollections.newConcurrentMap();
private CompoundPingListener(PingListener listener, ImmutableList<? extends ZenPing> zenPings) {
this.listener = listener;
this.zenPings = zenPings;
this.counter = new AtomicInteger(zenPings.size());
}

11
src/main/java/org/elasticsearch/discovery/zen/ping/multicast/MulticastZenPing.java
View File

@ -33,6 +33,7 @@ import org.elasticsearch.common.network.NetworkService;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.common.util.concurrent.ConcurrentCollections;
import org.elasticsearch.common.util.concurrent.EsRejectedExecutionException;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentType;
@ -199,6 +200,7 @@ public class MulticastZenPing extends AbstractLifecycleComponent<ZenPing> implem
public PingResponse[] pingAndWait(TimeValue timeout) {
final AtomicReference<PingResponse[]> response = new AtomicReference<PingResponse[]>();
final CountDownLatch latch = new CountDownLatch(1);
try {
ping(new PingListener() {
@Override
public void onPing(PingResponse[] pings) {
@ -206,11 +208,16 @@ public class MulticastZenPing extends AbstractLifecycleComponent<ZenPing> implem
latch.countDown();
}
}, timeout);
} catch (EsRejectedExecutionException ex) {
logger.debug("Ping execution rejected", ex);
return PingResponse.EMPTY;
}
try {
latch.await();
return response.get();
} catch (InterruptedException e) {
return null;
Thread.currentThread().interrupt();
return PingResponse.EMPTY;
}
}
@ -220,7 +227,7 @@ public class MulticastZenPing extends AbstractLifecycleComponent<ZenPing> implem
threadPool.generic().execute(new Runnable() {
@Override
public void run() {
listener.onPing(new PingResponse[0]);
listener.onPing(PingResponse.EMPTY);
}
});
return;