Skip to content

OTLP: ignore duplicate metric data points #133899

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 6 commits into from
Sep 2, 2025
Merged

OTLP: ignore duplicate metric data points #133899

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
0c28e05
OTLP: ignore duplicate metric data points
felixbarny Aug 31, 2025
9919632
Add additional test case
felixbarny Sep 2, 2025
97d47b8
Merge remote-tracking branch 'origin/main' into otlp-ignore-duplicate…
felixbarny Sep 2, 2025
aaccde8
[CI] Auto commit changes from spotless
Sep 2, 2025
fed0071
Fix compile errors after merging
felixbarny Sep 2, 2025
1bb840c
Merge remote-tracking branch 'felixbarny/otlp-ignore-duplicate-metric…
felixbarny Sep 2, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
23 changes: 16 additions & 7 deletions ...c/main/java/org/elasticsearch/xpack/oteldata/otlp/datapoint/DataPointGroupingContext.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -186,7 +186,10 @@ public void addDataPoint(DataPoint dataPoint) {
ignoredDataPoints++;
return;
}
getOrCreateDataPointGroup(dataPoint).addDataPoint(dataPoint);
DataPointGroup dataPointGroup = getOrCreateDataPointGroup(dataPoint);
if (dataPointGroup.addDataPoint(ignoredDataPointMessages, dataPoint) == false) {
ignoredDataPoints++;
}
}

private DataPointGroup getOrCreateDataPointGroup(DataPoint dataPoint) {
Expand All @@ -207,7 +210,6 @@ private DataPointGroup getOrCreateDataPointGroup(DataPoint dataPoint) {
scopeSchemaUrl,
dataPoint.getAttributes(),
dataPoint.getUnit(),
new ArrayList<>(),
targetIndex
);
dataPointGroups.put(dataPointGroupHash, dataPointGroup);
Expand All @@ -233,7 +235,8 @@ public static final class DataPointGroup {
private final ByteString scopeSchemaUrl;
private final List<KeyValue> dataPointAttributes;
private final String unit;
private final List<DataPoint> dataPoints;
private final Set<String> metricNames = new HashSet<>();
private final List<DataPoint> dataPoints = new ArrayList<>();
private final String targetIndex;
private String metricNamesHash;

Expand All @@ -244,7 +247,6 @@ public DataPointGroup(
ByteString scopeSchemaUrl,
List<KeyValue> dataPointAttributes,
String unit,
List<DataPoint> dataPoints,
String targetIndex
) {
this.resource = resource;
Expand All @@ -253,7 +255,6 @@ public DataPointGroup(
this.scopeSchemaUrl = scopeSchemaUrl;
this.dataPointAttributes = dataPointAttributes;
this.unit = unit;
this.dataPoints = dataPoints;
this.targetIndex = targetIndex;
}

Expand All @@ -276,9 +277,17 @@ public String getMetricNamesHash() {
return metricNamesHash;
}

public void addDataPoint(DataPoint dataPoint) {
boolean addDataPoint(Set<String> ignoredDataPointMessages, DataPoint dataPoint) {
metricNamesHash = null; // reset the hash when adding a new data point
dataPoints.add(dataPoint);
if (metricNames.add(dataPoint.getMetricName()) == false) {
ignoredDataPointMessages.add(
"Duplicate metric name '" + dataPoint.getMetricName() + "' for timestamp " + getTimestampUnixNano()
);
return false;
} else {
dataPoints.add(dataPoint);
return true;
}
}

public Resource resource() {
Expand Down
19 changes: 19 additions & 0 deletions ...t/java/org/elasticsearch/xpack/oteldata/otlp/datapoint/DataPointGroupingContextTests.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
import static org.elasticsearch.xpack.oteldata.otlp.OtlpUtils.createScopeMetrics;
import static org.elasticsearch.xpack.oteldata.otlp.OtlpUtils.createSumMetric;
import static org.elasticsearch.xpack.oteldata.otlp.OtlpUtils.keyValue;
import static org.hamcrest.Matchers.containsString;

public class DataPointGroupingContextTests extends ESTestCase {

Expand Down Expand Up @@ -74,6 +75,24 @@ public void testGroupingDifferentGroupUnit() throws Exception {
assertEquals(2, groupCount.get());
}

public void testGroupingDuplicateName() throws Exception {
// Group data points
ExportMetricsServiceRequest metricsRequest = createMetricsRequest(
List.of(
createGaugeMetric("system.cpu.usage", "{percent}", List.of(createDoubleDataPoint(nowUnixNanos, List.of()))),
createGaugeMetric("system.cpu.usage", "{percent}", List.of(createLongDataPoint(nowUnixNanos, List.of())))
)
);
context.groupDataPoints(metricsRequest);
assertEquals(2, context.totalDataPoints());
assertEquals(1, context.getIgnoredDataPoints());
assertThat(context.getIgnoredDataPointsMessage(), containsString("Duplicate metric name 'system.cpu.usage' for timestamp"));

AtomicInteger groupCount = new AtomicInteger(0);
context.consume(dataPointGroup -> groupCount.incrementAndGet());
assertEquals(1, groupCount.get());
}

public void testGroupingDifferentResource() throws Exception {
ResourceMetrics resource1 = createResourceMetrics(
List.of(keyValue("service.name", "test-service_1")),
Expand Down