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In einer neuen App Engine-Standardumgebung von Java 8 sehe ich den folgenden Fehler beim Versuch, in einem PubSub-Thema zu veröffentlichen:
io.grpc.internal.ChannelExecutor drain: Runnable threw exception in ChannelExecutor (ChannelExecutor.java:89)
java.lang.NullPointerException
at com.google.apphosting.runtime.ApiProxyImpl$CurrentRequestThreadFactory.newThread(ApiProxyImpl.java:1267)
at com.google.common.util.concurrent.ThreadFactoryBuilder$1.newThread(ThreadFactoryBuilder.java:162)
at java.util.concurrent.ThreadPoolExecutor$Worker.<init>(ThreadPoolExecutor.java:612)
at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:925)
at java.util.concurrent.ThreadPoolExecutor.ensurePrestart(ThreadPoolExecutor.java:1587)
at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:336)
at java.util.concurrent.ScheduledThreadPoolExecutor.schedule(ScheduledThreadPoolExecutor.java:555)
at io.grpc.internal.ManagedChannelImpl.rescheduleIdleTimer(ManagedChannelImpl.java:334)
at io.grpc.internal.ManagedChannelImpl.exitIdleMode(ManagedChannelImpl.java:299)
at io.grpc.internal.ManagedChannelImpl$4$1.run(ManagedChannelImpl.java:357)
at io.grpc.internal.ChannelExecutor.drain(ChannelExecutor.java:87)
at io.grpc.internal.ManagedChannelImpl$4.get(ManagedChannelImpl.java:359)
at io.grpc.internal.ClientCallImpl.start(ClientCallImpl.java:218)
at io.grpc.ForwardingClientCall.start(ForwardingClientCall.java:47)
at com.google.api.gax.grpc.HeaderInterceptor$1.start(HeaderInterceptor.java:62)
at io.grpc.stub.ClientCalls.startCall(ClientCalls.java:276)
at io.grpc.stub.ClientCalls.asyncUnaryRequestCall(ClientCalls.java:252)
at io.grpc.stub.ClientCalls.futureUnaryCall(ClientCalls.java:186)
at com.google.pubsub.v1.PublisherGrpc$PublisherFutureStub.publish(PublisherGrpc.java:460)
at com.google.cloud.pubsub.v1.Publisher.publishOutstandingBatch(Publisher.java:329)
at com.google.cloud.pubsub.v1.Publisher.publishAllOutstanding(Publisher.java:304)
at com.google.cloud.pubsub.v1.Publisher.access$500(Publisher.java:79)
at com.google.cloud.pubsub.v1.Publisher$5.run(Publisher.java:283)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:295)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
verwandtes Problem ist hier mit etwas mehr Informationen: https://github.com/GoogleCloudPlatform/google-cloud-java/issues/2275
Dies ist ein Gradle Projekt mit folgenden Abhängigkeiten:
dependencies {
providedCompile 'javax.servlet:javax.servlet-api:3.1.0'
providedCompile 'com.google.appengine:appengine:+'
testCompile 'org.eclipse.jetty:jetty-server:9.+'
testCompile 'org.eclipse.jetty:jetty-servlet:9.+'
compile group: 'com.google.guava', name: 'guava', version: '19.+'
compile group: 'com.google.inject', name: 'guice', version: '4.+'
compile 'com.google.appengine:appengine-api-1.0-sdk:1.+'
compile 'com.google.cloud:google-cloud-storage:1.2+'
compile group: 'com.google.cloud', name: 'google-cloud-pubsub', version: '0.20+'
compile ('com.google.cloud:google-cloud-datastore:1.2+')
compile('com.google.apis:google-api-services-cloudkms:v1-rev15-1.22.0') {
exclude(group: 'com.google.guava', module: 'guava-jdk5')
}
compile(group: 'com.google.api-client', name: 'google-api-client', version: '1.+') {
exclude(group: 'com.google.guava', module: 'guava-jdk5')
}
compile(group: 'com.google.api-client', name: 'google-api-client-appengine', version: '1.+') {
exclude(group: 'com.google.guava', module: 'guava-jdk5')
}
}
Ich implementiere, indem ich die WAR-Datei an appcfg.sh übergebe, anstatt das App Engine Gradle-Plugin zu verwenden.
PubSub in meinem Java 8 flexible Umgebung mit älteren PubSub Bibliotheken (0,11 Serie) funktioniert gut, aber auf die Java-8 Standardumgebung mit neueren PubSub Bibliotheken seit dem Einschalten (0,20 Serie) traf ich diesen Fehler jedes Mal.
Der einzige andere Hinweis auf diese Fehler, die ich gesehen habe in dieser Google Groups Diskussion: https://groups.google.com/d/msg/google-appengine/2UTg4Eqskyk/PbqYEK3GAAAJ
UPDATE 1:
die wirklich beängstigend Behelfslösung oben in diesem Google Groups Thread vorgeschlagen Nach dem Versuch (https: // gist.github.com/cmaan/7752e3c4fd0b1ba90a745cb6db232206) die NPE hat aufgehört zu geschehen. Allerdings gibt es ein neues Problem jetzt:
Caused by: io.grpc.StatusRuntimeException: UNAUTHENTICATED
at io.grpc.Status.asRuntimeException(Status.java:543) ~[grpc-core-1.4.0.jar:1.4.0]
at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:442) ~[grpc-stub-1.4.0.jar:1.4.0]
at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:426) ~[grpc-core-1.4.0.jar:1.4.0]
at io.grpc.internal.ClientCallImpl.access$100(ClientCallImpl.java:76) ~[grpc-core-1.4.0.jar:1.4.0]
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:512) ~[grpc-core-1.4.0.jar:1.4.0]
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:429) ~[grpc-core-1.4.0.jar:1.4.0]
at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:544) ~[grpc-core-1.4.0.jar:1.4.0]
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52) ~[grpc-core-1.4.0.jar:1.4.0]
at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:117) ~[grpc-core-1.4.0.jar:1.4.0]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_112-google-v7]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_112-google-v7]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[na:1.8.0_112-google-v7]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:295) ~[na:1.8.0_112-google-v7]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_112-google-v7]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_112-google-v7]
... 1 common frames omitted
Caused by: java.io.IOException: Could not get the access token.
at com.google.auth.oauth2.AppEngineCredentials.refreshAccessToken(AppEngineCredentials.java:136) ~[google-auth-library-oauth2-http-0.7.0.jar:na]
at com.google.auth.oauth2.OAuth2Credentials.refresh(OAuth2Credentials.java:149) ~[google-auth-library-oauth2-http-0.7.0.jar:na]
at com.google.auth.oauth2.OAuth2Credentials.getRequestMetadata(OAuth2Credentials.java:135) ~[google-auth-library-oauth2-http-0.7.0.jar:na]
at io.grpc.auth.GoogleAuthLibraryCallCredentials$1.run(GoogleAuthLibraryCallCredentials.java:110) ~[grpc-auth-1.4.0.jar:1.4.0]
... 7 common frames omitted
Caused by: java.lang.reflect.InvocationTargetException: null
at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_112-google-v7]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_112-google-v7]
at com.google.auth.oauth2.AppEngineCredentials.refreshAccessToken(AppEngineCredentials.java:131) ~[google-auth-library-oauth2-http-0.7.0.jar:na]
... 10 common frames omitted
Caused by: com.google.apphosting.api.ApiProxy$CallNotFoundException: Can't make API call memcache.Get in a thread that is neither the original request thread nor a thread created by ThreadManager
at com.google.apphosting.api.ApiProxy$CallNotFoundException.foreignThread(ApiProxy.java:844) ~[runtime-shared.jar:na]
at com.google.apphosting.api.ApiProxy$1.get(ApiProxy.java:183) ~[runtime-shared.jar:na]
at com.google.apphosting.api.ApiProxy$1.get(ApiProxy.java:180) ~[runtime-shared.jar:na]
at com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:93) ~[appengine-api.jar:na]
at com.google.appengine.api.memcache.MemcacheServiceImpl.quietGet(MemcacheServiceImpl.java:28) ~[appengine-api.jar:na]
at com.google.appengine.api.memcache.MemcacheServiceImpl.get(MemcacheServiceImpl.java:51) ~[appengine-api.jar:na]
at com.google.appengine.api.appidentity.AppIdentityServiceImpl.getAccessToken(AppIdentityServiceImpl.java:300) ~[appengine-api.jar:na]
... 14 common frames omitted