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From "Pierre-Yves Ritschard (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-6472) GenerateUsageRecords generates NPEs for expunging instances
Date Wed, 23 Apr 2014 07:45:16 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-6472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13977948#comment-13977948
] 

Pierre-Yves Ritschard commented on CLOUDSTACK-6472:
---------------------------------------------------

Here is the relevant stacktrace:

2014-04-22 00:18:07,417 ERROR [cloud.api.ApiServer] (catalina-exec-2:ctx-60c87510 ctx-22de212f
ctx-a88a3dd7) unhandled exception executing api command: listUsageRecords
java.lang.NullPointerException
        at com.cloud.api.ApiResponseHelper.createUsageResponse(ApiResponseHelper.java:3308)
        at org.apache.cloudstack.api.command.admin.usage.GetUsageRecordsCmd.execute(GetUsageRecordsCmd.java:119)
        at com.cloud.api.ApiDispatcher.dispatch(ApiDispatcher.java:161)
        at com.cloud.api.ApiServer.queueCommand(ApiServer.java:531)
        at com.cloud.api.ApiServer.handleRequest(ApiServer.java:374)
        at com.cloud.api.ApiServlet.processRequestInContext(ApiServlet.java:323)
        at com.cloud.api.ApiServlet.access$000(ApiServlet.java:53)
        at com.cloud.api.ApiServlet$1.run(ApiServlet.java:115)
        at org.apache.cloudstack.managed.context.impl.DefaultManagedContext$1.call(DefaultManagedContext.java:56)
        at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.callWithContext(DefaultManagedContext.java:103)
        at org.apache.cloudstack.managed.context.impl.DefaultManagedContext.runWithContext(DefaultManagedContext.java:53)
        at com.cloud.api.ApiServlet.processRequest(ApiServlet.java:112)
        at com.cloud.api.ApiServlet.doGet(ApiServlet.java:74)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:615)
        at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:647)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
        at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:889)
        at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:744)
        at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2282)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:744)

> GenerateUsageRecords generates NPEs for expunging instances
> -----------------------------------------------------------
>
>                 Key: CLOUDSTACK-6472
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6472
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server, Usage
>    Affects Versions: 4.3.0
>         Environment: linux
>            Reporter: Pierre-Yves Ritschard
>         Attachments: 0001-handle-removed-entities.patch
>
>
> The GenerateUsageRecords API command, pulls down the list of usage records in the cloud_usage
database and augments records with information pulled from the cloud database.
> When dealing with instance records, only instances which are do not have a value for
the removed field are considered. Unfortunately, since the output of _entityMgr.findById is
not checked this means that Null Pointer Exceptions are generated when trying to access the
output for expunged VMs.
> The attached patch fixes the issue and applies a similar fix for other similar cases.



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