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Eric Yang edited comment on HADOOP-15008 at 11/13/17 11:39 PM: --------------------------------------------------------------- +1 Verified the test failure is not related to this patch. The value output from different intervals seem to have correct values. was (Author: eyang): +1 Verified the test failure is not related to this patch. The value output from different different intervals seem to have correct values. > Metrics sinks may emit too frequently if multiple sink periods are configured > ----------------------------------------------------------------------------- > > Key: HADOOP-15008 > URL: https://issues.apache.org/jira/browse/HADOOP-15008 > Project: Hadoop Common > Issue Type: Bug > Components: metrics > Affects Versions: 2.2.0, 3.0.0-beta1 > Reporter: Erik Krogen > Assignee: Erik Krogen > Priority: Minor > Fix For: 3.1.0 > > Attachments: HADOOP-15008.000.patch > > > If there are multiple metrics sink periods configured, depending on what > those periods are, some sinks may emit too frequently. For example with the > following: > {code:title=hadoop-metrics2.properties} > namenode.sink.file10.class=org.apache.hadoop.metrics2.sink.FileSink > namenode.sink.file5.class=org.apache.hadoop.metrics2.sink.FileSink > namenode.sink.file10.filename=namenode-metrics_per10.out > namenode.sink.file5.filename=namenode-metrics_per5.out > namenode.sink.file10.period=10 > namenode.sink.file5.period=5 > {code} > I get the following: > {code} > ± for f in namenode-metrics_per*.out; do echo "$f" && grep > "metricssystem.MetricsSystem" $f | awk '{last=curr; curr=$1} END { print > curr-last }'; done > namenode-metrics_per10.out > 5000 > namenode-metrics_per5.out > 5000 > {code} > i.e., for both metrics files, each record is 5000 ms apart, even though one > of the sinks has been configured to emit at 10s intervals -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org