[
https://issues.apache.org/jira/browse/NIFI-3330?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Bryan Rosander updated NIFI-3330:
---------------------------------
Description:
HandleHttpRequest intermittently throws a NullPointerException, specifically
seen while starting up a node that is part of a cluster in which the processors
are in a started state. The exception is occurring on a line which appears to
have a null check before it, but it's a null check on the result of a method,
not a variable.
{code}2017-01-11 14:34:13,708 ERROR [Timer-Driven Process Thread-220]
o.a.n.p.standard.HandleHttpRequest
HandleHttpRequest[id=e00f0d3b-0158-1000-1e3f-81d710d3d7c9]
HandleHttpRequest[id=e00f0d3b-0158-1000-1e3f-81d710d3d7c9] failed to process
due to j
ava.lang.NullPointerException; rolling back session:
java.lang.NullPointerException
2017-01-11 14:34:13,996 ERROR [Timer-Driven Process Thread-220]
o.a.n.p.standard.HandleHttpRequest
java.lang.NullPointerException: null
at
org.apache.nifi.processors.standard.HandleHttpRequest.onTrigger(HandleHttpRequest.java:527)
~[nifi-standard-processors-1.1.0.jar:1.1.0]
at
org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
~[nifi-api-1.1.0.jar:1.1.0]
at
org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1099)
[nifi-framework-core-1.1.0.jar:1.1.0]
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:136)
[nifi-framework-core-1.1.0.jar:1.1.0]
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
[nifi-framework-core-1.1.0.jar:1.1.0]
at
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:132)
[nifi-framework-core-1.1.0.jar:1.1.0]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[na:1.8.0_111]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
[na:1.8.0_111]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
[na:1.8.0_111]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
[na:1.8.0_111]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[na:1.8.0_111]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[na:1.8.0_111]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]{code}
The following section (and other sections similar to it) in the onTrigger
method:
{code} if (request.getDispatcherType() != null) {
putAttribute(attributes, "http.dispatcher.type",
request.getDispatcherType().name());
}{code}
should be updated to save the result of the method and then check for null
before operating on that value.
For example:
{code}String dispatcherType = request.getDispatcherType();
if (dispatcherType != null) {
putAttribute(attributes, "http.dispatcher.type", dispatcherType.name());
}{code}
was:
HandleHttpRequest intermittently throws a NullPointerException, specifically
seen while starting up a node that is part of a cluster in which the processors
are in a started state. The exception is occurring on a line which appears to
have a null check before it, but it's a null check on the result of a method,
not a variable.
{code}2017-01-11 14:34:13,708 ERROR [Timer-Driven Process Thread-220]
o.a.n.p.standard.HandleHttpRequest
HandleHttpRequest[id=e00f0d3b-0158-1000-1e3f-81d710d3d7c9]
HandleHttpRequest[id=e00f0d3b-0158-1000-1e3f-81d710d3d7c9] failed to process
due to j
ava.lang.NullPointerException; rolling back session:
java.lang.NullPointerException
2017-01-11 14:34:13,996 ERROR [Timer-Driven Process Thread-220]
o.a.n.p.standard.HandleHttpRequest
java.lang.NullPointerException: null
at
org.apache.nifi.processors.standard.HandleHttpRequest.onTrigger(HandleHttpRequest.java:527)
~[nifi-standard-processors-1.1.0.jar:1.1.0]
at
org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
~[nifi-api-1.1.0.jar:1.1.0]
at
org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1099)
[nifi-framework-core-1.1.0.jar:1.1.0]
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:136)
[nifi-framework-core-1.1.0.jar:1.1.0]
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
[nifi-framework-core-1.1.0.jar:1.1.0]
at
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:132)
[nifi-framework-core-1.1.0.jar:1.1.0]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[na:1.8.0_111]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
[na:1.8.0_111]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
[na:1.8.0_111]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
[na:1.8.0_111]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[na:1.8.0_111]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[na:1.8.0_111]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]{code}
The following section (and other sections similar to it) in the onTrigger
method:
{code} if (request.getDispatcherType() != null) {
putAttribute(attributes, "http.dispatcher.type",
request.getDispatcherType().name());
}{code}
should be updated to save the result of the method and then check for null
before operating on that value.
For example:
{code}String dispatcherType = request.getDispatcherType();
if (dispatcherType != null) {
putAttribute(attributes, "http.dispatcher.type", dispatcherType);
}{code}
> HandleHttpRequest intermittently throwing NullPointerException
> --------------------------------------------------------------
>
> Key: NIFI-3330
> URL: https://issues.apache.org/jira/browse/NIFI-3330
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.1.0
> Reporter: Jeff Storck
> Assignee: Jeff Storck
> Priority: Minor
>
> HandleHttpRequest intermittently throws a NullPointerException, specifically
> seen while starting up a node that is part of a cluster in which the
> processors are in a started state. The exception is occurring on a line
> which appears to have a null check before it, but it's a null check on the
> result of a method, not a variable.
> {code}2017-01-11 14:34:13,708 ERROR [Timer-Driven Process Thread-220]
> o.a.n.p.standard.HandleHttpRequest
> HandleHttpRequest[id=e00f0d3b-0158-1000-1e3f-81d710d3d7c9]
> HandleHttpRequest[id=e00f0d3b-0158-1000-1e3f-81d710d3d7c9] failed to process
> due to j
> ava.lang.NullPointerException; rolling back session:
> java.lang.NullPointerException
> 2017-01-11 14:34:13,996 ERROR [Timer-Driven Process Thread-220]
> o.a.n.p.standard.HandleHttpRequest
> java.lang.NullPointerException: null
> at
> org.apache.nifi.processors.standard.HandleHttpRequest.onTrigger(HandleHttpRequest.java:527)
> ~[nifi-standard-processors-1.1.0.jar:1.1.0]
> at
> org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
> ~[nifi-api-1.1.0.jar:1.1.0]
> at
> org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1099)
> [nifi-framework-core-1.1.0.jar:1.1.0]
> at
> org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:136)
> [nifi-framework-core-1.1.0.jar:1.1.0]
> at
> org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
> [nifi-framework-core-1.1.0.jar:1.1.0]
> at
> org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:132)
> [nifi-framework-core-1.1.0.jar:1.1.0]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_111]
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> [na:1.8.0_111]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> [na:1.8.0_111]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> [na:1.8.0_111]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [na:1.8.0_111]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_111]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111]{code}
> The following section (and other sections similar to it) in the onTrigger
> method:
> {code} if (request.getDispatcherType() != null) {
> putAttribute(attributes, "http.dispatcher.type",
> request.getDispatcherType().name());
> }{code}
> should be updated to save the result of the method and then check for null
> before operating on that value.
> For example:
> {code}String dispatcherType = request.getDispatcherType();
> if (dispatcherType != null) {
> putAttribute(attributes, "http.dispatcher.type",
> dispatcherType.name());
> }{code}
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