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Reduce coordinator logs #17566

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Dec 16, 2024
Merged

Reduce coordinator logs #17566

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acc6f7f
Reduce coordinator logs
kfaraz Dec 13, 2024
f27e770
Remove extra comment
kfaraz Dec 16, 2024
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5 changes: 2 additions & 3 deletions ...rc/main/java/org/apache/druid/server/compaction/DataSourceCompactibleSegmentIterator.java
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Original file line number Diff line number Diff line change
Expand Up @@ -491,10 +491,9 @@ static List<Interval> filterSkipIntervals(Interval totalInterval, List<Interval>
remainingStart = skipInterval.getEnd();
} else {
// Ignore this skipInterval
log.warn(
log.debug(
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this log doesn't provide much useful info and can remain a debug

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"skipInterval[%s] is not contained in remainingInterval[%s]",
skipInterval,
new Interval(remainingStart, remainingEnd)
skipInterval, new Interval(remainingStart, remainingEnd)
);
}
}
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14 changes: 6 additions & 8 deletions server/src/main/java/org/apache/druid/server/coordinator/loading/HttpLoadQueuePeon.java
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Expand Up @@ -76,14 +76,10 @@
public class HttpLoadQueuePeon implements LoadQueuePeon
{
public static final TypeReference<List<DataSegmentChangeRequest>> REQUEST_ENTITY_TYPE_REF =
new TypeReference<List<DataSegmentChangeRequest>>()
{
};
new TypeReference<>() {};
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Java 9+ supports diamond operator with anonymous classes.
Since we have dropped support for Java 8, we can use this syntax here (and in several other places in the code which can be done in a separate PR).

cc: @Akshat-Jain

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Have raised PR: #17567. The PR isn't limited to just anonymous class usages, but rather does it for all usages where explicit type argument was redundant. I don't see an easy way to identify usages only for anonymous classes, and I didn't see any reason why we shouldn't do it for other usages as well, so ended up doing that. Hope that works!

Appreciate your review on the PR, thanks!


public static final TypeReference<List<DataSegmentChangeResponse>> RESPONSE_ENTITY_TYPE_REF =
new TypeReference<List<DataSegmentChangeResponse>>()
{
};
new TypeReference<>() {};

private static final EmittingLogger log = new EmittingLogger(HttpLoadQueuePeon.class);

Expand Down Expand Up @@ -390,8 +386,10 @@ public void stop()
stopped = true;

// Cancel all queued requests
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queuedSegments.forEach(holder -> onRequestCompleted(holder, RequestStatus.CANCELLED));
log.info("Cancelled [%d] requests queued on server [%s].", queuedSegments.size(), serverId);
if (!queuedSegments.isEmpty()) {
queuedSegments.forEach(holder -> onRequestCompleted(holder, RequestStatus.CANCELLED));
log.info("Cancelled [%d] requests queued on server[%s].", queuedSegments.size(), serverId);
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log only when non-empty.

}

segmentsToDrop.clear();
segmentsToLoad.clear();
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6 changes: 2 additions & 4 deletions server/src/test/java/org/apache/druid/server/coordinator/loading/HttpLoadQueuePeonTest.java
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Expand Up @@ -19,7 +19,6 @@

package org.apache.druid.server.coordinator.loading;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
Expand Down Expand Up @@ -350,9 +349,8 @@ public <Intermediate, Final> ListenableFuture<Final> go(
httpResponseHandler.handleResponse(httpResponse, null);
try {
List<DataSegmentChangeRequest> changeRequests = MAPPER.readValue(
request.getContent().array(), new TypeReference<List<DataSegmentChangeRequest>>()
{
}
request.getContent().array(),
HttpLoadQueuePeon.REQUEST_ENTITY_TYPE_REF
);

List<DataSegmentChangeResponse> statuses = new ArrayList<>(changeRequests.size());
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