morningman commented on a change in pull request #333: Add distributor which
allocate task to be fairly
URL: https://github.com/apache/incubator-doris/pull/333#discussion_r235324530
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File path: fe/src/main/java/org/apache/doris/load/routineload/RoutineLoad.java
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@@ -71,23 +78,69 @@ public RoutineLoad() {
idToRunningRoutineLoadJob = Maps.newHashMap();
idToCancelledRoutineLoadJob = Maps.newHashMap();
idToRoutineLoadTask = Maps.newHashMap();
- idToNeedSchedulerRoutineLoadTask = Maps.newHashMap();
+ needSchedulerRoutineLoadTask = Queues.newLinkedBlockingQueue();
+ beIdToConcurrentTasks = Maps.newHashMap();
+ taskIdToJobId = Maps.newHashMap();
lock = new ReentrantReadWriteLock(true);
}
+ public void initBeIdToMaxConcurrentTasks() {
+ if (beIdToMaxConcurrentTasks == null) {
+ beIdToMaxConcurrentTasks =
Catalog.getCurrentSystemInfo().getBackendIds(true)
+ .parallelStream().collect(Collectors.toMap(beId -> beId,
beId -> DEFAULT_BE_CONCURRENT_TASK_NUM));
+ }
+ }
+
public int getTotalMaxConcurrentTaskNum() {
readLock();
try {
- if (beIdToMaxConcurrentTasks == null) {
- beIdToMaxConcurrentTasks =
Catalog.getCurrentSystemInfo().getBackendIds(true)
- .parallelStream().collect(Collectors.toMap(beId ->
beId, beId -> DEFAULT_BE_CONCURRENT_TASK_NUM));
- }
+ initBeIdToMaxConcurrentTasks();
return beIdToMaxConcurrentTasks.values().stream().mapToInt(i ->
i).sum();
} finally {
readUnlock();
}
}
+ public void updateBeIdTaskMaps() {
+ writeLock();
+ try {
+ initBeIdToMaxConcurrentTasks();
+ List<Long> beIds =
Catalog.getCurrentSystemInfo().getBackendIds(true);
+
+ // diff beIds and beIdToMaxConcurrentTasks.keys()
+ List<Long> newBeIds = beIds.parallelStream().filter(entity ->
beIdToMaxConcurrentTasks.get(entity) == null)
+ .collect(Collectors.toList());
+ List<Long> decommissionBeIds =
beIdToMaxConcurrentTasks.keySet().parallelStream()
+ .filter(entity -> !beIds.contains(entity))
+ .collect(Collectors.toList());
+ newBeIds.parallelStream().forEach(entity ->
beIdToMaxConcurrentTasks.put(entity, DEFAULT_BE_CONCURRENT_TASK_NUM));
+ for (long beId : decommissionBeIds) {
+ beIdToMaxConcurrentTasks.remove(beId);
+ beIdToConcurrentTasks.remove(beId);
+ }
+ LOG.info("There are {} backends which participate in routine load
scheduler. "
+ + "There are {} new bes and {} decommission bes
for routine load",
Review comment:
change 'decommission'
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