SYMPTOM
When running Hive queries from Resource Manager log the following error is displayed:
2017-02-07 15:08:32,140 ERROR impl.MetricsSinkAdapter (MetricsSinkAdapter.java:publishMetricsFromQueue(148)) - Got sink exception, retry in 4600ms org.apache.hadoop.metrics2.MetricsException: Failed to putMetrics at org.apache.hadoop.metrics2.sink.timeline.HadoopTimelineMetricsSink.putMetrics(HadoopTimelineMetricsSink.java:216) at org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.consume(MetricsSinkAdapter.java:186) at org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.consume(MetricsSinkAdapter.java:43) at org.apache.hadoop.metrics2.impl.SinkQueue.consumeAll(SinkQueue.java:87) at org.apache.hadoop.metrics2.impl.MetricsSinkAdapter.publishMetricsFromQueue(MetricsSinkAdapter.java:134) at org.apache.hadoop.metrics2.impl.MetricsSinkAdapter$1.run(MetricsSinkAdapter.java:88) Caused by: java.net.UnknownHostException: http at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:579) at java.net.Socket.connect(Socket.java:528) at java.net.Socket.<init>(Socket.java:425) at java.net.Socket.<init>(Socket.java:280)
ROOT CAUSE
This issue occurs when reverse lookup returns incorrect hostname for the IP address.
RESOLUTION
To resolve this issue, fix the DNS issue under /etc/resolv.conf.
