org.apache.hadoop.metrics2.impl.MetricsConfigException: Error creating plugin: org.apache.hadoop.metrics2.sink.timeline.HadoopTimelineMetricsSink
at org.apache.hadoop.metrics2.impl.MetricsConfig.getPlugin(MetricsConfig.java:203)
at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.newSink(MetricsSystemImpl.java:529)
at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.configureSinks(MetricsSystemImpl.java:501)
at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.configure(MetricsSystemImpl.java:480)
at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.start(MetricsSystemImpl.java:189)
at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.init(MetricsSystemImpl.java:164)
at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.init(DefaultMetricsSystem.java:54)
at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.initialize(DefaultMetricsSystem.java:50)
at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2530)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2435)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2482)
at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2622)
at org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter.start(SecureDataNodeStarter.java:77)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:243)
Caused by: java.lang.IllegalArgumentException: no SSLSocketFactory specified
at javax.net.ssl.HttpsURLConnection.setSSLSocketFactory(HttpsURLConnection.java:357)
at org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink.getSSLConnection(AbstractTimelineMetricsSink.java:284)
at org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink.findLiveCollectorHostsFromKnownCollector(AbstractTimelineMetricsSink.java:440)
at org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink.refreshCollectorsFromConfigured(AbstractTimelineMetricsSink.java:412)
at org.apache.hadoop.metrics2.sink.timeline.AbstractTimelineMetricsSink.findPreferredCollectHost(AbstractTimelineMetricsSink.java:352)
at org.apache.hadoop.metrics2.sink.timeline.HadoopTimelineMetricsSink.init(HadoopTimelineMetricsSink.java:110)
at org.apache.hadoop.metrics2.impl.MetricsConfig.getPlugin(MetricsConfig.java:199)
... 17 more