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Wait for Netty 4 threads to terminate on close 

Today if the PreBuiltTransportClient is using Netty 4 transport, on
shutdown some Netty 4 threads could linger. This commit causes the
client to wait for these threads to shutdown upon termination.
This commit is contained in:
Jason Tedor 2016-08-04 09:48:38 -04:00
parent b0730bb214
commit c08557d033
2 changed files with 19 additions and 1 deletions
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2
client/transport/build.gradle
View File

@ -34,7 +34,7 @@ dependencies {
compile "org.elasticsearch.plugin:percolator-client:${version}"
testCompile "com.carrotsearch.randomizedtesting:randomizedtesting-runner:${versions.randomizedrunner}"
testCompile "junit:junit:${versions.junit}"
testCompile "org.hamcrest:hamcrest-all:${versions.hamcrest}"`
testCompile "org.hamcrest:hamcrest-all:${versions.hamcrest}"
}
dependencyLicenses {

18
client/transport/src/main/java/org/elasticsearch/transport/client/PreBuiltTransportClient.java
View File

@ -19,7 +19,10 @@
package org.elasticsearch.transport.client;
import io.netty.util.ThreadDeathWatcher;
import io.netty.util.concurrent.GlobalEventExecutor;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.network.NetworkModule;
import org.elasticsearch.common.settings.Setting;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.reindex.ReindexPlugin;
@ -33,6 +36,7 @@ import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.TimeUnit;
/**
* A builder to create an instance of {@link TransportClient}
@ -84,4 +88,18 @@ public class PreBuiltTransportClient extends TransportClient {
}
@Override
public void close() {
super.close();
if (!NetworkModule.TRANSPORT_TYPE_SETTING.exists(settings)
|| NetworkModule.TRANSPORT_TYPE_SETTING.get(settings).equals(Netty4Plugin.NETTY_TRANSPORT_NAME)) {
try {
GlobalEventExecutor.INSTANCE.awaitInactivity(5, TimeUnit.SECONDS);
ThreadDeathWatcher.awaitInactivity(5, TimeUnit.SECONDS);
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
}
}