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Posted to dev@flume.apache.org by "Ashish Paliwal (JIRA)" <ji...@apache.org> on 2014/11/05 11:42:34 UTC
[jira] [Resolved] (FLUME-751) NullPointException in
ThriftEventSource#getMetrics
[ https://issues.apache.org/jira/browse/FLUME-751?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ashish Paliwal resolved FLUME-751.
----------------------------------
Resolution: Won't Fix
Fix Version/s: v0.9.5
Won't fix. 0.X branch not maintained anymore
> NullPointException in ThriftEventSource#getMetrics
> --------------------------------------------------
>
> Key: FLUME-751
> URL: https://issues.apache.org/jira/browse/FLUME-751
> Project: Flume
> Issue Type: Bug
> Components: Sinks+Sources
> Affects Versions: v0.9.4
> Reporter: Joe Crobak
> Priority: Minor
> Fix For: v0.9.5
>
>
> ThriftEventSource#server isn't initialized until open() is called. If open is slow (e.g. because of connection problems), then #getMetrics() throws a NPE. Here's a sample stacktrace:
> {noformat}
> -0] (Slf4jLog.java:87) - /node/reports/agent1
> java.lang.NullPointerException
> at com.cloudera.flume.handlers.thrift.ThriftEventSource.getMetrics(ThriftEventSource.java:99)
> at com.cloudera.flume.reporter.ReportUtil.getFlattenedReport(ReportUtil.java:92)
> at com.cloudera.flume.reporter.ReportUtil.getFlattenedReport(ReportUtil.java:96)
> at com.cloudera.flume.reporter.NodeReportResource.getConfig(NodeReportResource.java:104)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:168)
> at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:70)
> at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:279)
> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:136)
> at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:86)
> at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:136)
> at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:74)
> at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1357)
> at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1289)
> at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1239)
> at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1229)
> at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:420)
> at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:497)
> at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:684)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
> at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:401)
> at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:326)
> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> {noformat}
> also:
> {noformat}
> Exception in thread "Thread-1" java.lang.NullPointerException
> at com.cloudera.flume.handlers.thrift.ThriftEventSource.getMetrics(ThriftEventSource.java:99)
> at com.cloudera.flume.core.EventSource$Base.getReports(EventSource.java:186)
> at com.cloudera.flume.agent.LogicalNode.getReports(LogicalNode.java:309)
> at com.cloudera.flume.reporter.MasterReportPusher$PusherThread.querySrcSinkReports(MasterReportPusher.java:102)
> at com.cloudera.flume.reporter.MasterReportPusher$PusherThread.sendReports(MasterReportPusher.java:110)
> at com.cloudera.flume.reporter.MasterReportPusher$PusherThread.run(MasterReportPusher.java:119)
> {noformat}
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