[
https://issues.apache.org/jira/browse/HBASE-29038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Duo Zhang resolved HBASE-29038.
-------------------------------
Hadoop Flags: Reviewed
Resolution: Fixed
Pushed to all active branches.
THanks [~aaronb]!
> NPE in processRS.jsp due to failure to get value from MBean
> -----------------------------------------------------------
>
> Key: HBASE-29038
> URL: https://issues.apache.org/jira/browse/HBASE-29038
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 2.5.10
> Reporter: Aaron Beitch
> Assignee: Aaron Beitch
> Priority: Minor
> Labels: pull-request-available
> Fix For: 2.7.0, 3.0.0-beta-2, 2.5.11, 2.6.3
>
>
> Fetching processRS.jsp from a RegionServer occasionally causes a
> NullPointerException.
> First an ERROR is reported that JSONMetricUtil is unable to get a value from
> MBean, "pauseWarnThresholdExceeded" and then there is an NPE rendering the
> page on the line that tries to cast that MBean value to a long.
>
> {code:java}
> ERROR [qtp1510333744-119] util.JSONMetricUtil: Unable to get value from
> MBean= Hadoop:service=HBase,name=RegionServer,sub=Serverfor
> attribute=pauseWarnThresholdExceeded
> Hadoop:service=HBase,name=RegionServer,sub=Server
> WARN [qtp1510333744-119] server.HttpChannel: /processRS.jsp
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.generated.regionserver.processRS_jsp._jspService(processRS_jsp.java:83)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHolder$NotAsync.service(ServletHolder.java:1450)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1656)
> at
> org.apache.hadoop.hbase.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:117)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
> at
> org.apache.hadoop.hbase.http.SecurityHeadersFilter.doFilter(SecurityHeadersFilter.java:65)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
> at
> org.apache.hadoop.hbase.http.ClickjackingPreventionFilter.doFilter(ClickjackingPreventionFilter.java:49)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
> at
> org.apache.hadoop.hbase.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:1521)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
> at
> org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:47)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:552)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:600)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:505)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:772)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.Server.handle(Server.java:516)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)
> at
> org.apache.hbase.thirdparty.org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)
> at java.base/java.lang.Thread.run(Unknown Source) {code}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
