FrankChen021 commented on a change in pull request #12111:
URL: https://github.com/apache/druid/pull/12111#discussion_r777788353
##########
File path:
server/src/main/java/org/apache/druid/server/QuerySchedulerProvider.java
##########
@@ -23,27 +23,28 @@
import com.fasterxml.jackson.annotation.JsonCreator;
import com.google.inject.Inject;
import com.google.inject.Provider;
+import org.apache.druid.java.util.emitter.service.ServiceEmitter;
import org.apache.druid.server.initialization.ServerConfig;
public class QuerySchedulerProvider extends QuerySchedulerConfig implements
Provider<QueryScheduler>
{
private final ServerConfig serverConfig;
-
+ private ServiceEmitter emitter;
Review comment:
```suggestion
private final ServiceEmitter emitter;
```
##########
File path: server/src/main/java/org/apache/druid/server/QueryScheduler.java
##########
@@ -137,6 +170,12 @@ public void registerQueryFuture(Query<?> query,
ListenableFuture<?> future)
Optional<Integer> priority =
prioritizationStrategy.computePriority(queryPlus, segments);
query = priority.map(query::withPriority).orElse(query);
Optional<String> lane =
laningStrategy.computeLane(queryPlus.withQuery(query), segments);
+ log.info("[%s] lane assigned to [%s] query with [%,d] priority",
lane.orElse("default"), query.getType(), priority.orElse(new Integer(0)));
+ final ServiceMetricEvent.Builder builderUsr =
ServiceMetricEvent.builder().setFeed("metrics")
+
.setDimension("lane", lane.orElse("default"))
+
.setDimension("dataSource", query.getDataSource().getTableNames())
+
.setDimension("type", query.getType());
+ emitter.emit(builderUsr.build("query/priority", priority.orElse(new
Integer(0))));
Review comment:
```suggestion
emitter.emit(builderUsr.build("query/priority", priority.orElse(0)));
```
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