[ https://issues.apache.org/jira/browse/KAFKA-4286?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ismael Juma updated KAFKA-4286: ------------------------------- Fix Version/s: 0.10.2.0 > metric reporter may hit NullPointerException during shutdown > ------------------------------------------------------------ > > Key: KAFKA-4286 > URL: https://issues.apache.org/jira/browse/KAFKA-4286 > Project: Kafka > Issue Type: Bug > Components: core > Affects Versions: 0.10.0.0 > Reporter: Jun Rao > Assignee: Xavier Léauté > Fix For: 0.10.2.0 > > > When we shut down a broker, our metric reporter could throw the following > exception. > java.lang.NullPointerException > at kafka.network.Processor$$anon$2.value(SocketServer.scala:392) > at kafka.network.Processor$$anon$2.value(SocketServer.scala:390) > This is because we report Yammer metric like the following and we de-register > the underlying Kafka metric when shutting down the socket server. > newGauge("IdlePercent", > new Gauge[Double] { > def value = { > metrics.metrics().get(metrics.metricName("io-wait-ratio", > "socket-server-metrics", metricTags)).value() > } > }, > metricTags.asScala > ) -- This message was sent by Atlassian JIRA (v6.3.4#6332)