RE: Executor metrics in spark application
Hi, Were you able to setup custom metrics in GangliaSink? If so, how did you register the custom metrics? Thanks! -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Executor-metrics-in-spark-application-tp188p25647.html Sent from the Apache Spark User List mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org
Re: Executor metrics in spark application
I'm also pretty interested how to create custom Sinks in Spark. I'm using it
with Ganglia and the normal metrics from JVM source do show up. I tried to
create my own metric based on Issac's code, but does not show up in Ganglia.
Does anyone know where is the problem?
Here's the code snippet:
class AccumulatorSource(accumulator: Accumulator[Long], name: String)
extends Source {
val sourceName = accumulator.metrics
val metricRegistry = new MetricRegistry()
metricRegistry.register(MetricRegistry.name(accumulator, name), new
Gauge[Long] {
override def getValue: Long = {
return accumulator.value;
}});
}
and then in the main:
val longAccumulator = sc.accumulator[Long](0);
val accumulatorMetrics = new AccumulatorSource(longAccumulator ,
counters.accumulator);
SparkEnv.get.metricsSystem.registerSource(accumulatorMetrics);
--
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Re: Executor metrics in spark application
I meant custom Sources, sorry. -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Executor-metrics-in-spark-application-tp188p10386.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
RE: Executor metrics in spark application
Hi Denes,
I think you can register your customized metrics source into metrics system
through metrics.properties, you can take metrics.propertes.template as
reference,
Basically you can do as follow if you want to monitor on executor:
executor.source.accumulator.class=xx.xx.xx.your-customized-metrics-source
I think the below code can only register metrics source in client side.
SparkEnv.get.metricsSystem.registerSource(accumulatorMetrics);
BTW, it's not a good choice to register through MetricsSystem, it would be nice
to register through configuration. Also you can enable console sink to verify
whether the source is registered or not.
Thanks
Jerry
-Original Message-
From: Denes [mailto:te...@outlook.com]
Sent: Tuesday, July 22, 2014 2:02 PM
To: u...@spark.incubator.apache.org
Subject: Re: Executor metrics in spark application
I'm also pretty interested how to create custom Sinks in Spark. I'm using it
with Ganglia and the normal metrics from JVM source do show up. I tried to
create my own metric based on Issac's code, but does not show up in Ganglia.
Does anyone know where is the problem?
Here's the code snippet:
class AccumulatorSource(accumulator: Accumulator[Long], name: String) extends
Source {
val sourceName = accumulator.metrics
val metricRegistry = new MetricRegistry()
metricRegistry.register(MetricRegistry.name(accumulator, name), new
Gauge[Long] {
override def getValue: Long = {
return accumulator.value;
}});
}
and then in the main:
val longAccumulator = sc.accumulator[Long](0); val accumulatorMetrics = new
AccumulatorSource(longAccumulator , counters.accumulator);
SparkEnv.get.metricsSystem.registerSource(accumulatorMetrics);
--
View this message in context:
http://apache-spark-user-list.1001560.n3.nabble.com/Executor-metrics-in-spark-application-tp188p10385.html
Sent from the Apache Spark User List mailing list archive at Nabble.com.
RE: Executor metrics in spark application
Hi Jerry, I know that way of registering a metrics, but it seems defeat the whole purpose. I'd like to define a source that is set within the application, for example number of parsed messages. If I register it in the metrics.properties, how can I obtain the instance? (or instances?) How can I set the property? Is there a way to read an accumulator values from a Source? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Executor-metrics-in-spark-application-tp188p10397.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
RE: Executor metrics in spark application
Yeah, I start to know your purpose. Original design purpose of customized metrics source is focused on self-contained source, seems you need to rely on outer variable, so the way you mentioned may be is the only way to register. Besides, as you cannot see the source in Ganglia, I think you can enable console sink to verify the outputs, also seems you want to register this source in driver, so you need to enable Ganglia sink on driver side and make sure Ganglia client can connect your driver. Thanks Jerry -Original Message- From: Denes [mailto:te...@outlook.com] Sent: Tuesday, July 22, 2014 6:38 PM To: u...@spark.incubator.apache.org Subject: RE: Executor metrics in spark application Hi Jerry, I know that way of registering a metrics, but it seems defeat the whole purpose. I'd like to define a source that is set within the application, for example number of parsed messages. If I register it in the metrics.properties, how can I obtain the instance? (or instances?) How can I set the property? Is there a way to read an accumulator values from a Source? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Executor-metrics-in-spark-application-tp188p10397.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
RE: Executor metrics in spark application
As far as I understand even if I could register the custom source, there is no way to have a cluster-wide variable to pass to it, i.e. the accumulator can be modified by tasks, but only the driver can read it and the broadcast value is constant. So it seems this custom metrics/sinks fuctionality is not really thought out by the developers. -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Executor-metrics-in-spark-application-tp188p10464.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
