pan3793 commented on code in PR #57332:
URL: https://github.com/apache/spark/pull/57332#discussion_r3613609650
##########
resource-managers/kubernetes/core/src/main/scala/org/apache/spark/deploy/k8s/features/BasicExecutorFeatureStep.scala:
##########
@@ -168,7 +168,11 @@ private[spark] class BasicExecutorFeatureStep(
ENV_DRIVER_URL -> driverUrl,
ENV_EXECUTOR_CORES -> {
if
(kubernetesConf.get(KUBERNETES_ALLOCATION_RECOVERY_MODE_ENABLED).getOrElse(false))
{
- kubernetesConf.get("spark.task.cpus", "1")
+ // `spark.task.cpus` may be fractional, so round up to an
integer (at least 1).
+ // When it is 0.5 or less, the single announced core fits more
than one task and
+ // the single-task-per-recovery-executor guarantee no longer
holds;
+ // ExecutorPodsAllocator logs a warning for that case.
+ math.max(1, kubernetesConf.get("spark.task.cpus",
"1.0").toDouble.ceil.toInt).toString
Review Comment:
updated, now profile being launched wins and `spark.task.cpus` is only the
fallback.
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