Blazer-007 commented on code in PR #4092:
URL: https://github.com/apache/gobblin/pull/4092#discussion_r1944058346
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gobblin-temporal/src/main/java/org/apache/gobblin/temporal/yarn/DynamicScalingYarnService.java:
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@@ -62,6 +82,73 @@ protected synchronized void requestInitialContainers() {
requestNewContainersForStaffingDeltas(deltas);
}
+ /**
+ * Handle the completion of a container. A new container will be requested
to replace the one
+ * that just exited depending on the exit status.
+ * <p>
+ * A container completes in either of the following conditions:
+ * <ol>
+ * <li> The container gets stopped by the ApplicationMaster. </li>
+ * <li> Some error happens in the container and caused the container to
exit </li>
+ * <li> The container gets preempted by the ResourceManager </li>
+ * <li> The container gets killed due to some reason, for example, if it
runs over the allowed amount of virtual or physical memory </li>
+ * </ol>
+ * A replacement container is needed in all except the first case.
+ * </p>
+ */
+ @Override
+ protected void handleContainerCompletion(ContainerStatus containerStatus) {
Review Comment:
in `handleContainerCompletion` the containerId which is removed will not be
the one when removing the same inside
`reviseWorkforcePlanAndRequestNewContainers` and for `removedContainerIds` at
one place we are adding and at other removing, even if interleaving call
happens then both are working with different containerIds not the same so
chance of inconsistent state are too low given that both are thread-safe data
structures as well
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