NPE on Local Indexing...

Hi,

Currently on Druid 0.8, running local index tasks (remote mode) and seeing the following NPE errors on the middleManager task logs. What could be causing this.

2016-03-25T02:33:29,584 WARN [main] io.druid.guice.LifecycleScope - Caught exception when trying to create a[Key[type=io.druid.indexing.worker.executor.ExecutorLifecycle, annotation=[none]]]

java.lang.reflect.InvocationTargetException

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_51]

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_51]

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_51]

    at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_51]

    at com.metamx.common.lifecycle.Lifecycle$AnnotationBasedHandler.start(Lifecycle.java:331) ~[java-util-0.27.0.jar:?]

    at com.metamx.common.lifecycle.Lifecycle.addMaybeStartHandler(Lifecycle.java:236) ~[java-util-0.27.0.jar:?]

    at com.metamx.common.lifecycle.Lifecycle.addMaybeStartManagedInstance(Lifecycle.java:182) ~[java-util-0.27.0.jar:?]

    at io.druid.guice.LifecycleScope$1.get(LifecycleScope.java:57) [druid-api-0.3.8.jar:0.8.0]

    at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41) [guice-4.0-beta.jar:?]

    at com.google.inject.internal.InjectorImpl$3$1.call(InjectorImpl.java:1005) [guice-4.0-beta.jar:?]

    at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1051) [guice-4.0-beta.jar:?]

    at com.google.inject.internal.InjectorImpl$3.get(InjectorImpl.java:1001) [guice-4.0-beta.jar:?]

    at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1040) [guice-4.0-beta.jar:?]

    at io.druid.cli.CliPeon.run(CliPeon.java:212) [druid-services-0.8.0.jar:0.8.0]

    at io.druid.cli.Main.main(Main.java:91) [druid-services-0.8.0.jar:0.8.0]

Caused by: com.metamx.common.ISE: Failed to run isReady

    at io.druid.indexing.worker.executor.ExecutorLifecycle.start(ExecutorLifecycle.java:124) ~[druid-indexing-service-0.8.0.jar:0.8.0]

    ... 15 more

Caused by: java.lang.NullPointerException

    at io.druid.indexing.common.task.AbstractFixedIntervalTask.isReady(AbstractFixedIntervalTask.java:67) ~[druid-indexing-service-0.8.0.jar:0.8.0]

    at io.druid.indexing.worker.executor.ExecutorLifecycle.start(ExecutorLifecycle.java:120) ~[druid-indexing-service-0.8.0.jar:0.8.0]

    ... 15 more

2016-03-25T02:33:29,585 ERROR [main] io.druid.cli.CliPeon - Error when starting up. Failing.

java.lang.NullPointerException

    at io.druid.cli.CliPeon.run(CliPeon.java:212) [druid-services-0.8.0.jar:0.8.0]

    at io.druid.cli.Main.main(Main.java:91) [druid-services-0.8.0.jar:0.8.0]

Can you try to reproduce the problem with the latest stable?