AmatyaAvadhanula commented on code in PR #14845:
URL: https://github.com/apache/druid/pull/14845#discussion_r1301271498
##########
server/src/main/java/org/apache/druid/server/coordinator/loading/LoadQueueTaskMaster.java:
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@@ -81,6 +91,50 @@ public LoadQueuePeon giveMePeon(ImmutableDruidServer server)
}
}
+ public Map<String, LoadQueuePeon> getAllPeons()
+ {
+ return loadManagementPeons;
+ }
+
+ public LoadQueuePeon getPeonForServer(ImmutableDruidServer server)
+ {
+ return loadManagementPeons.get(server.getName());
+ }
+
+ public void startPeonsForNewServers(List<ImmutableDruidServer>
currentServers)
+ {
+ for (ImmutableDruidServer server : currentServers) {
+ loadManagementPeons.computeIfAbsent(server.getName(), serverName -> {
+ LoadQueuePeon loadQueuePeon = createPeon(server);
+ loadQueuePeon.start();
+ log.debug("Created LoadQueuePeon for server[%s].", server.getName());
+ return loadQueuePeon;
+ });
+ }
+ }
+
+ public void stopPeonsForDisappearedServers(List<ImmutableDruidServer>
servers)
+ {
+ final Set<String> disappearedServers =
Sets.newHashSet(loadManagementPeons.keySet());
+ for (ImmutableDruidServer server : servers) {
+ disappearedServers.remove(server.getName());
+ }
+ for (String name : disappearedServers) {
+ log.debug("Removing LoadQueuePeon for disappeared server[%s].", name);
+ LoadQueuePeon peon = loadManagementPeons.remove(name);
+ peon.stop();
+ }
+ }
+
+ public void stopAndRemoveAllPeons()
+ {
+ for (String server : loadManagementPeons.keySet()) {
+ LoadQueuePeon peon = loadManagementPeons.remove(server);
+ peon.stop();
+ }
+ loadManagementPeons.clear();
Review Comment:
Nit: This may not be needed.
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