rmatharu commented on a change in pull request #903: SEP-19: Allocator changes
for standby-aware container allocation, and active container failover
URL: https://github.com/apache/samza/pull/903#discussion_r260920066
##########
File path:
samza-core/src/main/java/org/apache/samza/clustermanager/HostAwareContainerAllocator.java
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@@ -81,13 +87,27 @@ public void assignResourceRequests() {
if (expired) {
updateExpiryMetrics(request);
- if (resourceAvailableOnAnyHost) {
- log.info("Request for container: {} on {} has expired. Running on
ANY_HOST", request.getContainerID(), request.getPreferredHost());
- runStreamProcessor(request, ResourceRequestState.ANY_HOST);
+
+ if (standbyContainerManager.isPresent()) {
Review comment:
Current behavior is unchanged.
This if is only triggerred if (standbyContainerManager.isPresent())
otherwise it falls into the if below,
```else {
if (resourceAvailableOnAnyHost) {
log.info("Request for container: {} on {} has expired. Running
on ANY_HOST", request.getContainerID(), request.getPreferredHost());
runStreamProcessor(request, ResourceRequestState.ANY_HOST);
} else {
log.info("Request for container: {} on {} has expired.
Requesting additional resources on ANY_HOST.", request.getContainerID(),
request.getPreferredHost());
resourceRequestState.cancelResourceRequest(request);
requestResource(containerID, ResourceRequestState.ANY_HOST);
}
}```
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