I am using HDP3.0 and ambari 2.7 blueprint to install the cluster. Namenode/journal node failed to start due to the exception:
a:main(1715)) - Failed to start namenode. java.lang.AbstractMethodError: org.apache.hadoop.metrics2.sink.timeline.HadoopTimelineMetricsSink.init(Lorg/apache/commons/configuration2/SubsetConfiguration;)V at org.apache.hadoop.metrics2.impl.MetricsConfig.getPlugin(MetricsConfig.java:208) at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.newSink(MetricsSystemImpl.java:531) at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.configureSinks(MetricsSystemImpl.java:503) at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.configure(MetricsSystemImpl.java:479) at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.start(MetricsSystemImpl.java:188) at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.init(MetricsSystemImpl.java:163) at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.init(DefaultMetricsSystem.java:62) at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.initialize(DefaultMetricsSystem.java:58) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1642) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1710) https://issues.apache.org/jira/browse/AMBARI-20156 is still open. Has this bug been fixed in HDP3.0? Thanks.