mikewalch opened a new issue #407: Hadoop2 Metrics does not retry sending if metrics server is down URL: https://github.com/apache/accumulo/issues/407 Original issue: https://issues.apache.org/jira/browse/ACCUMULO-4849 ``` 2018-03-16 11:01:14,726 [impl.MetricsSystemImpl] WARN : Error creating sink 'graphite' org.apache.hadoop.metrics2.impl.MetricsConfigException: Error creating plugin: org.apache.hadoop.metrics2.sink.GraphiteSink 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.accumulo.server.metrics.MetricsSystemHelper$MetricsSystemHolder.<clinit>(MetricsSystemHelper.java:46) at org.apache.accumulo.server.metrics.MetricsSystemHelper.getInstance(MetricsSystemHelper.java:50) at org.apache.accumulo.tserver.metrics.TabletServerMetricsFactory.<init>(TabletServerMetricsFactory.java:45) at org.apache.accumulo.tserver.TabletServer.<init>(TabletServer.java:401) at org.apache.accumulo.tserver.TabletServer.main(TabletServer.java:3086) at org.apache.accumulo.tserver.TServerExecutable.execute(TServerExecutable.java:43) at org.apache.accumulo.start.Main.lambda$execKeyword$0(Main.java:122) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.hadoop.metrics2.MetricsException: Error creating connection, localhost:2004 at org.apache.hadoop.metrics2.sink.GraphiteSink$Graphite.connect(GraphiteSink.java:160) at org.apache.hadoop.metrics2.sink.GraphiteSink.init(GraphiteSink.java:64) at org.apache.hadoop.metrics2.impl.MetricsConfig.getPlugin(MetricsConfig.java:199) ... 15 more Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at java.net.Socket.connect(Socket.java:538) at java.net.Socket.<init>(Socket.java:434) at java.net.Socket.<init>(Socket.java:211) at org.apache.hadoop.metrics2.sink.GraphiteSink$Graphite.connect(GraphiteSink.java:152) ... 17 more ```
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