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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.storage
import com.codahale.metrics.{Gauge,MetricRegistry}
import org.apache.spark.metrics.source.Source
import org.apache.spark.SparkContext
private[spark] class BlockManagerSource(val blockManager: BlockManager, sc: SparkContext)
extends Source {
val metricRegistry = new MetricRegistry()
val sourceName = "%s.BlockManager".format(sc.appName)
metricRegistry.register(MetricRegistry.name("memory", "maxMem_MBytes"), new Gauge[Long] {
override def getValue: Long = {
val storageStatusList = blockManager.master.getStorageStatus
val maxMem = storageStatusList.map(_.maxMem).reduce(_ + _)
maxMem / 1024 / 1024
}
})
metricRegistry.register(MetricRegistry.name("memory", "remainingMem_MBytes"), new Gauge[Long] {
override def getValue: Long = {
val storageStatusList = blockManager.master.getStorageStatus
val remainingMem = storageStatusList.map(_.memRemaining).reduce(_ + _)
remainingMem / 1024 / 1024
}
})
metricRegistry.register(MetricRegistry.name("memory", "memUsed_MBytes"), new Gauge[Long] {
override def getValue: Long = {
val storageStatusList = blockManager.master.getStorageStatus
val maxMem = storageStatusList.map(_.maxMem).reduce(_ + _)
val remainingMem = storageStatusList.map(_.memRemaining).reduce(_ + _)
(maxMem - remainingMem) / 1024 / 1024
}
})
metricRegistry.register(MetricRegistry.name("disk", "diskSpaceUsed_MBytes"), new Gauge[Long] {
override def getValue: Long = {
val storageStatusList = blockManager.master.getStorageStatus
val diskSpaceUsed = storageStatusList
.flatMap(_.blocks.values.map(_.diskSize))
.reduceOption(_ + _)
.getOrElse(0L)
diskSpaceUsed / 1024 / 1024
}
})
}
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