Mikhail Cherkasov created IGNITE-5773:
-----------------------------------------
Summary: Scheduler throwing NullPointerException
Key: IGNITE-5773
URL: https://issues.apache.org/jira/browse/IGNITE-5773
Project: Ignite
Issue Type: Bug
Affects Versions: 2.0
Environment: Oracle Hotspot 1.8_121
Ignite 2.0.0
Springmix 4.3.7
Reporter: Mikhail Cherkasov
Assignee: Alexey Goncharuk
Priority: Critical
Fix For: 2.1
NPE occurs during deploying a service as cluster singleton. Ignite scheduler is
used as a cron for this purpose, however NPE occurs for ignite version 2.0.0.
Below is the log information for the exception:
2017-06-06 13:21:08 ERROR GridServiceProcessor:495 - Failed to initialize
service (service will not be deployed): AVxezSbWNphcxa1CYjfP
java.lang.NullPointerException
at
org.apache.ignite.internal.processors.schedule.ScheduleFutureImpl.schedule(ScheduleFutureImpl.java:299)
at
org.apache.ignite.internal.processors.schedule.IgniteScheduleProcessor.schedule(IgniteScheduleProcessor.java:56)
at
org.apache.ignite.internal.IgniteSchedulerImpl.scheduleLocal(IgniteSchedulerImpl.java:109)
at
com.mypackage.state.services.MyService.startScheduler(MyService.scala:172)
at com.mypackage.state.services.MyService.init(MyService.scala:149)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor.redeploy(GridServiceProcessor.java:1097)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor.processAssignment(GridServiceProcessor.java:1698)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor.onSystemCacheUpdated(GridServiceProcessor.java:1372)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor.access$300(GridServiceProcessor.java:117)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor$ServiceEntriesListener$1.run0(GridServiceProcessor.java:1339)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor$DepRunnable.run(GridServiceProcessor.java:1753)
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)
2017-06-06 13:21:08:868 ERROR application - Unable to initialise GRID:
class org.apache.ignite.IgniteException: null
at
org.apache.ignite.internal.util.IgniteUtils.convertException(IgniteUtils.java:949)
at
org.apache.ignite.internal.IgniteServicesImpl.deployClusterSingleton(IgniteServicesImpl.java:122)
at
com.mypackage.state.mypackage1.InitialiseGrid$$anonfun$apply$1.apply(InitialiseGrid.scala:22)
at
com.mypackage.state.mypackage1.InitialiseGrid$$anonfun$apply$1.apply(InitialiseGrid.scala:19)
at
scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
at
com.mypackage.state.mypackage1.InitialiseGrid$.apply(InitialiseGrid.scala:19)
at com.mypackage.state.Application$.main(Application.scala:54)
at com.mypackage.state.Application.main(Application.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sbt.Run.invokeMain(Run.scala:67)
at sbt.Run.run0(Run.scala:61)
at sbt.Run.sbt$Run$$execute$1(Run.scala:51)
at sbt.Run$$anonfun$run$1.apply$mcV$sp(Run.scala:55)
at sbt.Run$$anonfun$run$1.apply(Run.scala:55)
at sbt.Run$$anonfun$run$1.apply(Run.scala:55)
at sbt.Logger$$anon$4.apply(Logger.scala:85)
at sbt.TrapExit$App.run(TrapExit.scala:248)
at java.lang.Thread.run(Thread.java:745)
Caused by: class org.apache.ignite.IgniteCheckedException: null
at
org.apache.ignite.internal.util.IgniteUtils.cast(IgniteUtils.java:7242)
at
org.apache.ignite.internal.util.future.GridFutureAdapter.resolve(GridFutureAdapter.java:258)
at
org.apache.ignite.internal.util.future.GridFutureAdapter.get0(GridFutureAdapter.java:189)
at
org.apache.ignite.internal.util.future.GridFutureAdapter.get(GridFutureAdapter.java:139)
at
org.apache.ignite.internal.AsyncSupportAdapter.saveOrGet(AsyncSupportAdapter.java:112)
at
org.apache.ignite.internal.IgniteServicesImpl.deployClusterSingleton(IgniteServicesImpl.java:119)
... 20 more
Caused by: java.lang.NullPointerException
at
org.apache.ignite.internal.processors.schedule.ScheduleFutureImpl.schedule(ScheduleFutureImpl.java:299)
at
org.apache.ignite.internal.processors.schedule.IgniteScheduleProcessor.schedule(IgniteScheduleProcessor.java:56)
at
org.apache.ignite.internal.IgniteSchedulerImpl.scheduleLocal(IgniteSchedulerImpl.java:109)
at
com.mypackage.state.services.MyService.startScheduler(MyService.scala:172)
at com.mypackage.state.services.MyService.init(MyService.scala:149)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor.redeploy(GridServiceProcessor.java:1097)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor.processAssignment(GridServiceProcessor.java:1698)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor.onSystemCacheUpdated(GridServiceProcessor.java:1372)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor.access$300(GridServiceProcessor.java:117)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor$ServiceEntriesListener$1.run0(GridServiceProcessor.java:1339)
at
org.apache.ignite.internal.processors.service.GridServiceProcessor$DepRunnable.run(GridServiceProcessor.java:1753)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
... 1 more
This exception occurs right on start up when try to add a services to the cron.
The scheduler from example us used:
https://apacheignite.readme.io/docs/cron-based-scheduling .
Below is the example, similar to the issue raised by another user, link for the
reference
(http://apache-ignite-users.70518.x6.nabble.com/Fwd-NPE-at-ScheduleFutureImpl-line-177-td13435.html
private def startScheduler() = {
ignite.scheduler.scheduleLocal(new Runnable() {
override def run() =
try {
Logger.info("Tick tock")
/** Do Stuff! */
}
catch { case e:Exception => Logger.error("I poked, I failed!", e) }
}, "* * * * *")}
I think the scheduler processor does not match the expected processor
interface. This results to a bad state.
IgniteKernal is responsible to start each processors :
org.apache.ignite.internal.IgniteKernal.startProcessor(GridProcessor):
proc.start(cfg.isActiveOnStart());
But the
org.apache.ignite.internal.processors.schedule.IgniteScheduleProcessor does
not implement it (missing boolean parameter) :
/** {@inheritDoc} */
@Override public void start() throws IgniteCheckedException {
sched = new Scheduler();
sched.start();
}
That's why the default (empty) impl is used. And the "sched" attribute stay
null.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
