pgaref commented on a change in pull request #2645:
URL: https://github.com/apache/hive/pull/2645#discussion_r710209656
##########
File path:
llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/LlapTaskSchedulerService.java
##########
@@ -1447,23 +1454,26 @@ private SelectHostResult selectHost(TaskInfo request,
Map<String, List<NodeInfo>
if (request.shouldForceLocality()) {
requestedHostsWillBecomeAvailable = true;
} else {
- LlapServiceInstance inst =
activeInstances.getByHost(host).stream().findFirst().get();
- NodeInfo nodeInfo =
instanceToNodeMap.get(inst.getWorkerIdentity());
- if (nodeInfo != null && nodeInfo.getEnableTime() >
request.getLocalityDelayTimeout()
- && nodeInfo.isDisabled() && nodeInfo.hadCommFailure()) {
- LOG.debug("Host={} will not become available within
requested timeout", nodeInfo);
- // This node will likely be activated after the task
timeout expires.
- } else {
- // Worth waiting for the timeout.
- requestedHostsWillBecomeAvailable = true;
+ for (LlapServiceInstance inst : activeInstancesByHost) {
+ NodeInfo nodeInfo =
instanceToNodeMap.get(inst.getWorkerIdentity());
+ if (nodeInfo == null) {
+ LOG.warn("Null NodeInfo when attempting to get host {}",
host);
+ // Leave requestedHostWillBecomeAvailable as is. If some
other host is found - delay,
+ // else ends up allocating to a random host immediately.
+ continue;
Review comment:
we can avoid continue by changing second if to else if
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