tgravescs commented on a change in pull request #27636:
[SPARK-30873][CORE][YARN]Handling Node Decommissioning for Yarn cluster manger
in Spark
URL: https://github.com/apache/spark/pull/27636#discussion_r389675952
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File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
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@@ -1542,4 +1542,55 @@ package object config {
.bytesConf(ByteUnit.BYTE)
.createOptional
+ private[spark] val GRACEFUL_DECOMMISSION_ENABLE =
+ ConfigBuilder("spark.graceful.decommission.enable")
+ .doc("Whether to enable the node graceful decommissioning handling")
+ .booleanConf
+ .createWithDefault(false)
+
+ private[spark] val GRACEFUL_DECOMMISSION_FETCHFAILED_IGNORE_THRESHOLD =
+ ConfigBuilder("spark.graceful.decommission.fetchfailed.ignore.threshold")
+ .doc("Threshold of number of times fetchfailed ignored due to node" +
+ " decommission.This is configurable as per the need of the user and" +
+ " depending upon type of the cloud. If we keep this a large value and
" +
+ " there is continuous decommission of nodes, in those scenarios stage"
+
+ " will never abort and keeps on retrying in an unbounded manner.")
+ .intConf
+ .createWithDefault(8)
+
+ private[spark] val GRACEFUL_DECOMMISSION_EXECUTOR_LEASETIME_PCT =
+ ConfigBuilder("spark.graceful.decommission.executor.leasetimePct")
+ .doc("Percentage of time to expiry after which executors are killed " +
Review comment:
I don't know what this mean. percentage of what time to expiry? We get a
notification that node being decommissioned and I assume this is how long to
let executor run before killing it, but it doesn't say what this is a
percentage of
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