Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/6082#discussion_r30178896
--- Diff:
yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala ---
@@ -300,11 +300,14 @@ private[spark] class ApplicationMaster(
val expiryInterval =
yarnConf.getInt(YarnConfiguration.RM_AM_EXPIRY_INTERVAL_MS, 120000)
// we want to be reasonably responsive without causing too many
requests to RM.
- val schedulerInterval =
- sparkConf.getTimeAsMs("spark.yarn.scheduler.heartbeat.interval-ms",
"5s")
+ val heartbeatInterval = math.max(0, math.min(expiryInterval / 2,
+ sparkConf.getTimeAsMs("spark.yarn.scheduler.heartbeat.interval-ms",
"5s")))
- // must be <= expiryInterval / 2.
- val interval = math.max(0, math.min(expiryInterval / 2,
schedulerInterval))
+ // we want to check more frequently for pending containers
+ val eagerAllocationInterval = math.min(heartbeatInterval,
--- End diff --
So this is more of an initial interval, since it keeps increasing. Probably
should change the name of the variable and the config accordingly.
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