Correct, it’s not critical. Metrics can help a bit with debugging things like node hotspots in Metron and in HDP generally, but it’s certainly not required to run.
Simon > On 7 Sep 2017, at 16:13, [email protected] <[email protected]> wrote: > > I wouldn't consider it a show stopper myself, happy to be persuaded > otherwise. I'm not even 100% sure it's related to Metron. I just put it > in Ambari's maintenance mode for now. > > Jon > > On Thu, Sep 7, 2017, 11:11 Laurens Vets <[email protected]> wrote: > >> Is this something we need to fix for 0.4.1? Also, should I create JIRA >> ticket? >> >> On 2017-09-06 16:45, [email protected] wrote: >>> I'm seeing the same issue right now as well on my fresh bare metal >>> install >>> of HDP (no Metron yet), haven't dug into it further to troubleshoot. >>> >>> Jon >>> >>> On Wed, Sep 6, 2017, 18:22 Laurens Vets <[email protected]> wrote: >>> >>>> In preparation of 0.4.1-rc, I'm trying to install the current github >>>> master and I'm running into an issue with Ambari-metrics-collector. >>>> "Metrics Collector" seems to start, but immediately turns red again >>>> Ambari and stops. >>>> >>>> Any idea what might be going on or where I can start troubleshooting >>>> this? >>>> >>>> In /var/log/hbase-ams-master-metron1.log I see lots of: >>>> >>>> 2017-09-06 21:49:16,469 INFO [HBase-Metrics2-1] impl.MetricsConfig: >>>> loaded properties from hadoop-metrics2-hbase.properties >>>> 2017-09-06 21:49:16,477 INFO [HBase-Metrics2-1] >>>> timeline.HadoopTimelineMetricsSink: Initializing Timeline metrics >>>> sink. >>>> 2017-09-06 21:49:16,478 INFO [HBase-Metrics2-1] >>>> timeline.HadoopTimelineMetricsSink: Identified hostname = metron1, >>>> serviceName = ams-hbase >>>> 2017-09-06 21:49:16,478 INFO [HBase-Metrics2-1] >>>> timeline.HadoopTimelineMetricsSink: Collector Uri: >>>> http://metron1:6188/ws/v1/timeline/metrics >>>> 2017-09-06 21:49:16,491 INFO [HBase-Metrics2-1] >>>> impl.MetricsSinkAdapter: Sink timeline started >>>> 2017-09-06 21:49:16,500 INFO [HBase-Metrics2-1] >>>> impl.MetricsSystemImpl: >>>> Scheduled snapshot period at 10 second(s). >>>> 2017-09-06 21:49:16,500 INFO [HBase-Metrics2-1] >>>> impl.MetricsSystemImpl: >>>> HBase metrics system started >>>> 2017-09-06 21:49:16,518 WARN [HBase-Metrics2-1] lib.Interns: Metrics >>>> intern cache overflow at 2011 for >>>> MetricsSystem={MetricsSystem=MetricsInfo >>>> Impl{name=MetricsSystem, description=MetricsSystem}, MetricsSystem >>>> record=MetricsInfoImpl{name=MetricsSystem, description=MetricsSystem >>>> record}} >>>> 2017-09-06 21:49:17,564 WARN >>>> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:61181] server.NIOServerCnxn: >>>> caught end of stream exception >>>> EndOfStreamException: Unable to read additional data from client >>>> sessionid 0x15e5929270d0001, likely client has closed socket >>>> at >>>> org.apache.zookeeper.server.NIOServerCnxn.doIO(NIOServerCnxn.java:228) >>>> at >>>> >>>> >> org.apache.zookeeper.server.NIOServerCnxnFactory.run(NIOServerCnxnFactory.java:208) >>>> at java.lang.Thread.run(Thread.java:745) >>>> 2017-09-06 21:49:17,565 INFO >>>> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:61181] server.NIOServerCnxn: >>>> Closed socket connection for client /10.0.0.11: >>>> 45058 which had sessionid 0x15e5929270d0001q >>>> >>>> Additionally, I also see: >>>> >>>> 2017-09-06 22:19:16,468 INFO [HBase-Metrics2-1] >>>> timeline.HadoopTimelineMetricsSink: Initializing Timeline metrics >>>> sink. >>>> 2017-09-06 22:19:16,468 INFO [HBase-Metrics2-1] >>>> timeline.HadoopTimelineMetricsSink: Identified hostname = metron1, >>>> serviceName = ams-hbase >>>> 2017-09-06 22:19:16,468 INFO [HBase-Metrics2-1] >>>> timeline.HadoopTimelineMetricsSink: Collector Uri: >>>> http://metron1:6188/ws/v1/timeline/metrics >>>> 2017-09-06 22:19:16,470 INFO [HBase-Metrics2-1] >>>> impl.MetricsSinkAdapter: Sink timeline started >>>> 2017-09-06 22:19:16,471 INFO [HBase-Metrics2-1] >>>> impl.MetricsSystemImpl: >>>> Scheduled snapshot period at 10 second(s). >>>> 2017-09-06 22:19:16,471 INFO [HBase-Metrics2-1] >>>> impl.MetricsSystemImpl: >>>> HBase metrics system started >>>> 2017-09-06 22:20:26,491 INFO [timeline] >>>> timeline.HadoopTimelineMetricsSink: Unable to connect to collector, >>>> http://metron1:6188/ws/v1/timeline/metrics >>>> This exceptions will be ignored for next 100 times >>>> >>>> 2017-09-06 22:20:26,491 WARN [timeline] >>>> timeline.HadoopTimelineMetricsSink: Unable to send metrics to >>>> collector >>>> by address:http://metron1:6188/ws/v1/timeline/metrics >>>> >>>> Which ok because metrics collector isn't working... >>>> >>>> Any ideas? >>>> >> > -- > > Jon
