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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2020/07/09 13:13:40 UTC
[GitHub] [skywalking] pop0505 opened a new issue #5070: class[class com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor] before method[execute] intercept failure java.lang.NullPointerException
pop0505 opened a new issue #5070:
URL: https://github.com/apache/skywalking/issues/5070
Please answer these questions before submitting your issue.
- Why do you submit this issue?
- [ ] Question or discussion
- [x] Bug
- [ ] Requirement
- [ ] Feature or performance improvement
___
### Bug
- Which version of SkyWalking, OS and JRE?
SkyWalking 6.6, MacOS, JDK8
- What happen?
Afer upgrade mongodb-driver version to 4.0.4, I got NullPointerException in my application:
```
java.lang.NullPointerException: null
at org.apache.skywalking.apm.agent.core.context.ContextManager.stopSpan(ContextManager.java:182)
at org.apache.skywalking.apm.plugin.undertow.v2x.SWRunnable.run(SWRunnable.java:50)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:2019)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1558)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1449)
at java.lang.Thread.run(Thread.java:748)
```
And skywalking print error log:
```
ERROR 2020-07-09 16:00:00:146 scheduling-1 InstMethodsInter : class[class com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor] before method[execute] intercept failure
java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
at org.apache.skywalking.apm.agent.core.dictionary.NetworkAddressDictionary.find(NetworkAddressDictionary.java:44)
at org.apache.skywalking.apm.agent.core.context.TracingContext.createExitSpan(TracingContext.java:388)
at org.apache.skywalking.apm.agent.core.context.ContextManager.createExitSpan(ContextManager.java:120)
at org.apache.skywalking.apm.plugin.mongodb.v3.support.MongoSpanHelper.createExitSpan(MongoSpanHelper.java:39)
at org.apache.skywalking.apm.plugin.mongodb.v3.interceptor.v37.MongoDBOperationExecutorInterceptor.beforeMethod(MongoDBOperationExecutorInterceptor.java:51)
at org.apache.skywalking.apm.agent.core.plugin.interceptor.enhance.InstMethodsInter.intercept(InstMethodsInter.java:82)
at com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor.execute(MongoClientDelegate.java)
at com.mongodb.client.internal.MongoIterableImpl.execute(MongoIterableImpl.java:135)
at com.mongodb.client.internal.MongoIterableImpl.iterator(MongoIterableImpl.java:92)
at org.springframework.data.mongodb.core.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:2771)
at org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:2507)
at org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:2489)
at org.springframework.data.mongodb.core.MongoTemplate.find(MongoTemplate.java:856)
......
```
Is it caused by incompatibility with mongodb-driver 4.0+，or other reason?
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[GitHub] [skywalking] pop0505 commented on issue #5070: class[class com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor] before method[execute] intercept failure java.lang.NullPointerException
Posted by GitBox <gi...@apache.org>.
pop0505 commented on issue #5070:
URL: https://github.com/apache/skywalking/issues/5070#issuecomment-656147434
Thx, I've checked source code and confirm that the reason is plugin incompatibility.
mongodb-4.x-plugin is needed because SpringBoot 2.3 release switches to MongoDB 4
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[GitHub] [skywalking] wu-sheng commented on issue #5070: class[class com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor] before method[execute] intercept failure java.lang.NullPointerException
Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #5070:
URL: https://github.com/apache/skywalking/issues/5070#issuecomment-656134929
It could be triggered by other plugins issue. You could try to remove the MongoDB plugin, and give a try. If there is no issue, then, most likely it is the plugin issue. But, as always, debugging is always the best choice.
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[GitHub] [skywalking] wu-sheng commented on issue #5070: class[class com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor] before method[execute] intercept failure java.lang.NullPointerException
Posted by GitBox <gi...@apache.org>.
wu-sheng commented on issue #5070:
URL: https://github.com/apache/skywalking/issues/5070#issuecomment-656125919
Check the supported-list doc for supported versions. I only found the MongoDB 3.x test cases, https://github.com/apache/skywalking/tree/master/test/plugin/scenarios/mongodb-3.x-scenario. Most likely, there is no one contributed 4.x plugins yet.
Welcome everyone to do so.
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[GitHub] [skywalking] wu-sheng closed issue #5070: class[class com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor] before method[execute] intercept failure java.lang.NullPointerException
Posted by GitBox <gi...@apache.org>.
wu-sheng closed issue #5070:
URL: https://github.com/apache/skywalking/issues/5070
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[GitHub] [skywalking] pop0505 commented on issue #5070: class[class com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor] before method[execute] intercept failure java.lang.NullPointerException
Posted by GitBox <gi...@apache.org>.
pop0505 commented on issue #5070:
URL: https://github.com/apache/skywalking/issues/5070#issuecomment-656132654
I mean, this problem may not caused by MongoDB4.0+, or how can I check the actual reason? So that I can try to contribute 4.x plugins
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