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https://issues.apache.org/jira/browse/KAFKA-517?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joel Koshy updated KAFKA-517:
-----------------------------
Affects Version/s: 0.8
> Ensure that we escape the metric names if they include user strings
> -------------------------------------------------------------------
>
> Key: KAFKA-517
> URL: https://issues.apache.org/jira/browse/KAFKA-517
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8
> Reporter: Jay Kreps
> Labels: bugs
>
> JMX has limits on valid strings. We need to check validity before blindly
> creating a metric that includes a given topic name. If we fail to do this we
> will get an exception like this:
> javax.management.MalformedObjectNameException: Unterminated key property part
> at javax.management.ObjectName.construct(ObjectName.java:540)
> at javax.management.ObjectName.<init>(ObjectName.java:1403)
> at
> com.yammer.metrics.reporting.JmxReporter.onMetricAdded(JmxReporter.java:395)
> at
> com.yammer.metrics.core.MetricsRegistry.notifyMetricAdded(MetricsRegistry.java:516)
> at
> com.yammer.metrics.core.MetricsRegistry.getOrAdd(MetricsRegistry.java:491)
> at
> com.yammer.metrics.core.MetricsRegistry.newMeter(MetricsRegistry.java:240)
> at com.yammer.metrics.Metrics.newMeter(Metrics.java:245)
> at
> kafka.metrics.KafkaMetricsGroup$class.newMeter(KafkaMetricsGroup.scala:46)
> at kafka.server.FetcherStat.newMeter(AbstractFetcherThread.scala:180)
> at kafka.server.FetcherStat.<init>(AbstractFetcherThread.scala:182)
> at
> kafka.server.FetcherStat$$anonfun$2.apply(AbstractFetcherThread.scala:186)
> at
> kafka.server.FetcherStat$$anonfun$2.apply(AbstractFetcherThread.scala:186)
> at kafka.utils.Pool.getAndMaybePut(Pool.scala:60)
> at
> kafka.server.FetcherStat$.getFetcherStat(AbstractFetcherThread.scala:190)
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