Github user attilapiros commented on a diff in the pull request:
https://github.com/apache/spark/pull/21635#discussion_r199527182
--- Diff:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/YarnClusterSchedulerSource.scala
---
@@ -0,0 +1,53 @@
+/*
+ * 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.deploy.yarn
+
+import com.codahale.metrics.{Gauge, MetricRegistry}
+
+import org.apache.spark.metrics.source.Source
+
+private[spark] class YarnClusterSchedulerSource(yarnAllocator:
YarnAllocator) extends Source {
+
+ override val sourceName: String = "yarn"
+ override val metricRegistry: MetricRegistry = new MetricRegistry()
+
+ metricRegistry.register(MetricRegistry.name("numExecutorsFailed"), new
Gauge[Int] {
+ override def getValue: Int = yarnAllocator.getNumExecutorsFailed
+ })
+
+ metricRegistry.register(MetricRegistry.name("numExecutorsRunning"), new
Gauge[Int] {
+ override def getValue: Int = yarnAllocator.getNumExecutorsRunning
+ })
+
+ metricRegistry.register(MetricRegistry.name("numReleasedContainers"),
new Gauge[Int] {
+ override def getValue: Int = yarnAllocator.getNumReleasedContainers
+ })
+
+
metricRegistry.register(MetricRegistry.name("numPendingLossReasonRequests"),
new Gauge[Int] {
+ override def getValue: Int =
yarnAllocator.getNumPendingLossReasonRequests
--- End diff --
Sorry I have no use case for it. I added it as in previous comments it was
requested to have more metrics and this one was something easy to collect If it
is totally useless then better to remove it.
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