[ https://issues.apache.org/jira/browse/HBASE-20917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16553353#comment-16553353 ]
Hudson commented on HBASE-20917: -------------------------------- Results for branch branch-1.4 [build #394 on builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.4/394/]: (x) *{color:red}-1 overall{color}* ---- details (if available): (x) {color:red}-1 general checks{color} -- For more information [see general report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.4/394//General_Nightly_Build_Report/] (x) {color:red}-1 jdk7 checks{color} -- For more information [see jdk7 report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.4/394//JDK7_Nightly_Build_Report/] (x) {color:red}-1 jdk8 hadoop2 checks{color} -- For more information [see jdk8 (hadoop2) report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.4/394//JDK8_Nightly_Build_Report_(Hadoop2)/] (x) {color:red}-1 source release artifact{color} -- See build output for details. > MetaTableMetrics#stop references uninitialized requestsMap for non-meta region > ------------------------------------------------------------------------------ > > Key: HBASE-20917 > URL: https://issues.apache.org/jira/browse/HBASE-20917 > Project: HBase > Issue Type: Bug > Reporter: Ted Yu > Assignee: Ted Yu > Priority: Major > Fix For: 1.5.0, 1.4.6, 2.2.0 > > Attachments: 20917.v1.txt, 20917.v2.txt > > > I noticed the following in test output: > {code} > 2018-07-21 15:54:43,181 ERROR [RS_CLOSE_REGION-regionserver/172.17.5.4:0-1] > executor.EventHandler(186): Caught throwable while processing event > M_RS_CLOSE_REGION > java.lang.NullPointerException > at > org.apache.hadoop.hbase.coprocessor.MetaTableMetrics.stop(MetaTableMetrics.java:329) > at > org.apache.hadoop.hbase.coprocessor.BaseEnvironment.shutdown(BaseEnvironment.java:91) > at > org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$RegionEnvironment.shutdown(RegionCoprocessorHost.java:165) > at > org.apache.hadoop.hbase.coprocessor.CoprocessorHost.shutdown(CoprocessorHost.java:290) > at > org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost$4.postEnvCall(RegionCoprocessorHost.java:559) > at > org.apache.hadoop.hbase.coprocessor.CoprocessorHost.execOperation(CoprocessorHost.java:622) > at > org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost.postClose(RegionCoprocessorHost.java:551) > at org.apache.hadoop.hbase.regionserver.HRegion.doClose(HRegion.java:1678) > at org.apache.hadoop.hbase.regionserver.HRegion.close(HRegion.java:1484) > at > org.apache.hadoop.hbase.regionserver.handler.CloseRegionHandler.process(CloseRegionHandler.java:104) > at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > {code} > {{requestsMap}} is only initialized for the meta region. > However, check for meta region is absent in the stop method: > {code} > public void stop(CoprocessorEnvironment e) throws IOException { > // since meta region can move around, clear stale metrics when stop. > for (String meterName : requestsMap.keySet()) { > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)