Hi,
I'm running a program in Spark 1.4 where several Spark Streaming contexts
are created from the same Spark context. As pointed in
https://spark.apache.org/docs/latest/streaming-programming-guide.html each
Spark Streaming context is stopped before creating the next Spark Streaming
context. The program works ok, but I get exceptions like the following when
a new Spark Streaming context is created
15/06/23 16:34:51 INFO MetricsSystem: Metrics already registered
java.lang.IllegalArgumentException: A metric named
local-1435070090627.driver.SampleStreamingTest.StreamingMetrics.streaming.lastReceivedBatch_processingEndTime
already exists
at
com.codahale.metrics.MetricRegistry.register(MetricRegistry.java:91)
at
com.codahale.metrics.MetricRegistry.registerAll(MetricRegistry.java:385)
at
com.codahale.metrics.MetricRegistry.register(MetricRegistry.java:85)
Is this something to be concerned, or just a minor nuisance?
Thanks a lot in advance.
Greetings,
Juan Rodriguez Hortala
