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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-14707) NPE spew getting metrics via jmx
Date Tue, 27 Oct 2015 15:05:27 GMT
stack created HBASE-14707:
-----------------------------

             Summary: NPE spew getting metrics via jmx
                 Key: HBASE-14707
                 URL: https://issues.apache.org/jira/browse/HBASE-14707
             Project: HBase
          Issue Type: Bug
          Components: metrics
            Reporter: stack


See this in branch-1 tip:

{code}
2015-10-27 08:01:08,954 INFO  [main-EventThread] replication.ReplicationTrackerZKImpl: /hbase/rs/e1101.halxg.cloudera.com,16020,1445958006576
znode expired, triggering replicatorRemoved event
2015-10-27 08:01:20,645 ERROR [685943200@qtp-893835279-134] util.JSONBean: getting attribute
Value of "org.apache.hadoop.hbase.client":type="MetricsConnection",scope="hconnection-0x33abd9d3",name="executorPoolActiveThreads"
threw an exception
javax.management.RuntimeMBeanException: java.lang.NullPointerException
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:839)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:852)
        at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:651)
        at com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:678)
        at org.apache.hadoop.hbase.util.JSONBean.writeAttribute(JSONBean.java:235)
        at org.apache.hadoop.hbase.util.JSONBean.write(JSONBean.java:209)
        at org.apache.hadoop.hbase.util.JSONBean.access$000(JSONBean.java:53)
        at org.apache.hadoop.hbase.util.JSONBean$1.write(JSONBean.java:96)
        at org.apache.hadoop.hbase.http.jmx.JMXJsonServlet.doGet(JMXJsonServlet.java:202)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
        at org.apache.hadoop.hbase.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:113)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at org.apache.hadoop.hbase.http.ClickjackingPreventionFilter.doFilter(ClickjackingPreventionFilter.java:48)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at org.apache.hadoop.hbase.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:1354)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:49)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:49)
        at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
        at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
        at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
        at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
        at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
        at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
        at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
        at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
        at org.mortbay.jetty.Server.handle(Server.java:326)
        at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
        at org.mortbay.jetty.HttpConnection$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)
Caused by: java.lang.NullPointerException
{code}

TSDB is trying to get metrics on a period



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