Sanil15 commented on a change in pull request #1152: SAMZA-2319: Simplify
Container Allocation logic
URL: https://github.com/apache/samza/pull/1152#discussion_r327383268
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File path:
samza-core/src/main/java/org/apache/samza/clustermanager/AbstractContainerAllocator.java
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@@ -121,18 +146,101 @@ public void run() {
Thread.sleep(allocatorSleepIntervalMs);
} catch (InterruptedException e) {
- log.warn("Got InterruptedException in AllocatorThread.", e);
+ LOG.warn("Got InterruptedException in AllocatorThread.", e);
Thread.currentThread().interrupt();
} catch (Exception e) {
- log.error("Got unknown Exception in AllocatorThread.", e);
+ LOG.error("Got unknown Exception in AllocatorThread.", e);
}
}
}
/**
* Assigns resources received from the cluster manager to processors.
+ *
+ * During the run() method, the thread sleeps for allocatorSleepIntervalMs
ms. It then invokes assignResourceRequests,
+ * and tries to allocate any unsatisfied request that is still in the
request queue {@link ResourceRequestState})
+ * with allocated resources.
+ * When {@code hostAffinityEnabled} is disabled, all allocated resources are
buffered in the list keyed by "ANY_HOST".
+ * When {@code hostAffinityEnabled} is enabled, all allocated resources are
buffered in the list keyed by "preferredHost
Review comment:
Sure made some edits,
Also "in case a resourceRequest with this hostName was never made, it is
keyed under ANY." is this the surplus resource case?
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