[
https://issues.apache.org/jira/browse/KYLIN-4021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
wangrupeng reassigned KYLIN-4021:
---------------------------------
Assignee: wangrupeng
> Async Broadcast of project schema may cause creating cube failed
> ----------------------------------------------------------------
>
> Key: KYLIN-4021
> URL: https://issues.apache.org/jira/browse/KYLIN-4021
> Project: Kylin
> Issue Type: Bug
> Components: Metadata
> Reporter: Liu Shaohui
> Assignee: wangrupeng
> Priority: Major
>
> In our prod cluster, we found some creating cube requests failed for the
> model not found.
> The problem is that users will create the cube right after creating the model
> success. But the the two requests may be routed to two different servers.
> When the other server receive creating cube request, the project schema may
> be not updated for the async Broadcast and the server can not found the model
> related to the cube.
> the log at query server 1
> {code:java}
> kylin.log.11:2019-05-27 10:26:44,143 INFO [http-bio-7070-exec-962]
> model.DataModelManager:248 : Saving Model model_k1_bb_83_uyyyyyyy3636 to
> Project BigBI_Hive with bigbi_kylin as owner
> kylin.log.11:2019-05-27 10:26:44,144 INFO [http-bio-7070-exec-962]
> model.DataModelManager:185 : Model model_k1_bb_83_uyyyyyyy3636 is missing or
> unloaded yet
> kylin.log.11:2019-05-27 10:26:44,145 INFO [http-bio-7070-exec-962]
> persistence.ResourceStore:309 : Update resource:
> /model_desc/model_k1_bb_83_uyyyyyyy3636.json with content:{code}
> and the log at query server 2
> {code:java}
> 2019-05-27 10:26:44,296 WARN [http-bio-7070-exec-132]
> cube.CubeDescManager:195 : Broken cube desc CubeDesc
> [name=cube_b_bb_83_uyyyyyyy3636]
> java.lang.NullPointerException: DateModelDesc(model_k1_bb_83_uyyyyyyy3636)
> not found
> at
> com.google.common.base.Preconditions.checkNotNull(Preconditions.java:235)
> at org.apache.kylin.cube.model.CubeDesc.init(CubeDesc.java:664)
> at
> org.apache.kylin.cube.CubeDescManager.createCubeDesc(CubeDescManager.java:193)
> at
> org.apache.kylin.rest.service.CubeService.createCubeAndDesc(CubeService.java:216)
> at
> org.apache.kylin.rest.service.CubeService$$FastClassBySpringCGLIB$$17a07c0e.invoke(<generated>)
> at
> org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
> at
> org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:738)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
> at
> org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:69)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
> at
> org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:673)
> at
> org.apache.kylin.rest.service.CubeService$$EnhancerBySpringCGLIB$$20946622.createCubeAndDesc(<generated>)
> at
> org.apache.kylin.rest.controller.CubeController.saveCubeDesc(CubeController.java:735)
> at sun.reflect.GeneratedMethodAccessor341.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498){code}
>
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