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mlbiscoc pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/solr.git
The following commit(s) were added to refs/heads/main by this push:
new 63d244ed89f SOLR-17436: Create a v2 equivalent for /admin/metrics
(#4057)
63d244ed89f is described below
commit 63d244ed89fdde1360ff6d46e8890f0b4b1a162a
Author: igiguere <[email protected]>
AuthorDate: Wed Feb 4 09:55:03 2026 -0500
SOLR-17436: Create a v2 equivalent for /admin/metrics (#4057)
Co-authored-by: Isabelle Giguere <[email protected]>
New v2 /metrics handler supporting both Prometheus and OpenMetrics format.
---
changelog/unreleased/SOLR-17436-v2-metrics-api.yml | 8 +
.../solr/client/api/endpoint/MetricsApi.java | 84 +++++++
.../solr/handler/admin/AdminHandlersProxy.java | 62 ++++-
.../apache/solr/handler/admin/MetricsHandler.java | 160 ++----------
.../apache/solr/handler/admin/api/GetMetrics.java | 181 ++++++++++++++
.../org/apache/solr/handler/api/V2ApiUtils.java | 5 +
.../org/apache/solr/jersey/JerseyApplications.java | 2 +
.../org/apache/solr/jersey/MessageBodyWriters.java | 30 +++
.../solr/response/PrometheusResponseWriter.java | 18 +-
.../apache/solr/response/QueryResponseWriter.java | 3 +
.../solr/response/ResponseWritersRegistry.java | 4 +-
.../org/apache/solr/util/stats/MetricUtils.java | 192 +++++++++++++-
.../apache/solr/cloud/BasicDistributedZkTest.java | 2 -
.../apache/solr/cloud/TestBaseStatsCacheCloud.java | 2 -
.../solr/handler/admin/MetricsHandlerTest.java | 51 ++--
.../solr/handler/admin/api/GetMetricsTest.java | 276 +++++++++++++++++++++
.../response/TestPrometheusResponseWriter.java | 3 +-
.../TestPrometheusResponseWriterCloud.java | 3 -
.../solr/opentelemetry/TestDistributedTracing.java | 5 +-
.../solr/opentelemetry/TestMetricExemplars.java | 2 -
.../deployment-guide/pages/metrics-reporting.adoc | 26 +-
.../solrj/impl/SolrClientNodeStateProvider.java | 2 -
.../solr/client/solrj/request/MetricsRequest.java | 51 +++-
.../test-files/solrj/solr/solr-metrics-enabled.xml | 50 ++++
.../client/solrj/request/TestMetricsRequest.java | 147 +++++++++++
.../org/apache/solr/util/SolrJMetricTestUtils.java | 4 -
26 files changed, 1141 insertions(+), 232 deletions(-)
diff --git a/changelog/unreleased/SOLR-17436-v2-metrics-api.yml
b/changelog/unreleased/SOLR-17436-v2-metrics-api.yml
new file mode 100644
index 00000000000..e6378c05648
--- /dev/null
+++ b/changelog/unreleased/SOLR-17436-v2-metrics-api.yml
@@ -0,0 +1,8 @@
+# See https://github.com/apache/solr/blob/main/dev-docs/changelog.adoc
+title: Create a v2 equivalent for /admin/metrics
+type: added # added, changed, fixed, deprecated, removed, dependency_update,
security, other
+authors:
+ - name: Isabelle Giguère
+links:
+ - name: SOLR-17436
+ url: https://issues.apache.org/jira/browse/SOLR-17436
diff --git
a/solr/api/src/java/org/apache/solr/client/api/endpoint/MetricsApi.java
b/solr/api/src/java/org/apache/solr/client/api/endpoint/MetricsApi.java
new file mode 100644
index 00000000000..64efee83591
--- /dev/null
+++ b/solr/api/src/java/org/apache/solr/client/api/endpoint/MetricsApi.java
@@ -0,0 +1,84 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.solr.client.api.endpoint;
+
+import static org.apache.solr.client.api.util.Constants.RAW_OUTPUT_PROPERTY;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.extensions.Extension;
+import io.swagger.v3.oas.annotations.extensions.ExtensionProperty;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.ws.rs.GET;
+import jakarta.ws.rs.HeaderParam;
+import jakarta.ws.rs.Path;
+import jakarta.ws.rs.QueryParam;
+import jakarta.ws.rs.core.StreamingOutput;
+
+/** V2 API definitions to fetch metrics. */
+@Path("/metrics")
+public interface MetricsApi {
+
+ @GET
+ @Operation(
+ summary = "Retrieve metrics gathered by Solr.",
+ tags = {"metrics"},
+ extensions = {
+ @Extension(properties = {@ExtensionProperty(name =
RAW_OUTPUT_PROPERTY, value = "true")})
+ })
+ StreamingOutput getMetrics(
+ @HeaderParam("Accept") String acceptHeader,
+ @Parameter(
+ schema =
+ @Schema(
+ name = "node",
+ description = "Name of the node to which proxy the
request.",
+ defaultValue = "all"))
+ @QueryParam(value = "node")
+ String node,
+ @Parameter(schema = @Schema(name = "name", description = "The metric
name to filter on."))
+ @QueryParam(value = "name")
+ String name,
+ @Parameter(
+ schema = @Schema(name = "category", description = "The category
label to filter on."))
+ @QueryParam(value = "category")
+ String category,
+ @Parameter(
+ schema =
+ @Schema(
+ name = "core",
+ description =
+ "TThe core name to filter on. More than one core can
be specified in a comma-separated list."))
+ @QueryParam(value = "core")
+ String core,
+ @Parameter(
+ schema =
+ @Schema(name = "collection", description = "The collection
name to filter on. "))
+ @QueryParam(value = "collection")
+ String collection,
+ @Parameter(schema = @Schema(name = "shard", description = "The shard
name to filter on."))
+ @QueryParam(value = "shard")
+ String shard,
+ @Parameter(
+ schema =
+ @Schema(
+ name = "replica_type",
+ description = "The replica type to filter on.",
+ allowableValues = {"NRT", "TLOG", "PULL"}))
+ @QueryParam(value = "replica_type")
+ String replicaType);
+}
diff --git
a/solr/core/src/java/org/apache/solr/handler/admin/AdminHandlersProxy.java
b/solr/core/src/java/org/apache/solr/handler/admin/AdminHandlersProxy.java
index 5f253c4ec4e..a91db17d9bb 100644
--- a/solr/core/src/java/org/apache/solr/handler/admin/AdminHandlersProxy.java
+++ b/solr/core/src/java/org/apache/solr/handler/admin/AdminHandlersProxy.java
@@ -33,15 +33,18 @@ import java.util.concurrent.TimeoutException;
import org.apache.solr.client.solrj.SolrRequest;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.request.GenericSolrRequest;
+import org.apache.solr.client.solrj.request.GenericV2SolrRequest;
import org.apache.solr.client.solrj.response.InputStreamResponseParser;
import org.apache.solr.cloud.ZkController;
import org.apache.solr.common.SolrException;
+import org.apache.solr.common.params.CommonParams;
import org.apache.solr.common.params.ModifiableSolrParams;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.core.CoreContainer;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.response.SolrQueryResponse;
+import org.apache.solr.util.stats.MetricUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -55,17 +58,34 @@ public class AdminHandlersProxy {
private static final String PARAM_NODE = "node";
private static final long PROMETHEUS_FETCH_TIMEOUT_SECONDS = 10;
- /** Proxy this request to a different remote node if 'node' or 'nodes'
parameter is provided */
+ /**
+ * Proxy this request to a different remote node's V1 API if 'node' or
'nodes' parameter is
+ * provided. For V2, use {@link AdminHandlersProxy#maybeProxyToNodes(String,
SolrQueryRequest,
+ * SolrQueryResponse, CoreContainer)}
+ */
public static boolean maybeProxyToNodes(
SolrQueryRequest req, SolrQueryResponse rsp, CoreContainer container)
throws IOException, SolrServerException, InterruptedException {
+ return maybeProxyToNodes("V1", req, rsp, container);
+ }
+
+ /**
+ * Proxy this request to a different remote node's selected API version if
'node' or 'nodes'
+ * parameter is provided
+ */
+ public static boolean maybeProxyToNodes(
+ String apiVersion, SolrQueryRequest req, SolrQueryResponse rsp,
CoreContainer container)
+ throws IOException, SolrServerException, InterruptedException {
String pathStr = req.getPath();
ModifiableSolrParams params = new ModifiableSolrParams(req.getParams());
// Check if response format is Prometheus/OpenMetrics
- String wt = params.get("wt");
- boolean isPrometheusFormat = "prometheus".equals(wt) ||
"openmetrics".equals(wt);
+ String wt = params.get(CommonParams.WT);
+ boolean isPrometheusFormat =
+ MetricUtils.PROMETHEUS_METRICS_WT.equals(wt)
+ || MetricUtils.OPEN_METRICS_WT.equals(wt)
+ || (wt == null && pathStr.endsWith("/metrics"));
if (isPrometheusFormat) {
// Prometheus format: use singular 'node' parameter for single-node proxy
@@ -75,7 +95,7 @@ public class AdminHandlersProxy {
}
params.remove(PARAM_NODE);
- handlePrometheusSingleNode(nodeName, pathStr, params, container, rsp);
+ handlePrometheusSingleNode(apiVersion, nodeName, pathStr, params,
container, rsp);
} else {
// Other formats (JSON/XML): use plural 'nodes' parameter for multi-node
aggregation
String nodeNames = req.getParams().get(PARAM_NODES);
@@ -85,7 +105,7 @@ public class AdminHandlersProxy {
params.remove(PARAM_NODES);
Set<String> nodes = resolveNodes(nodeNames, container);
- handleNamedListFormat(nodes, pathStr, params,
container.getZkController(), rsp);
+ handleNamedListFormat(apiVersion, nodes, pathStr, params,
container.getZkController(), rsp);
}
return true;
@@ -93,6 +113,7 @@ public class AdminHandlersProxy {
/** Handle non-Prometheus formats using the existing NamedList approach. */
private static void handleNamedListFormat(
+ String apiVersion,
Set<String> nodes,
String pathStr,
SolrParams params,
@@ -101,7 +122,7 @@ public class AdminHandlersProxy {
Map<String, Future<NamedList<Object>>> responses = new LinkedHashMap<>();
for (String node : nodes) {
- responses.put(node, callRemoteNode(node, pathStr, params, zkController));
+ responses.put(node, callRemoteNode(apiVersion, node, pathStr, params,
zkController));
}
for (Map.Entry<String, Future<NamedList<Object>>> entry :
responses.entrySet()) {
@@ -125,8 +146,12 @@ public class AdminHandlersProxy {
}
/** Makes a remote request asynchronously. */
- public static CompletableFuture<NamedList<Object>> callRemoteNode(
- String nodeName, String uriPath, SolrParams params, ZkController
zkController) {
+ private static CompletableFuture<NamedList<Object>> callRemoteNode(
+ String apiVersion,
+ String nodeName,
+ String uriPath,
+ SolrParams params,
+ ZkController zkController) {
// Validate that the node exists in the cluster
if
(!zkController.zkStateReader.getClusterState().getLiveNodes().contains(nodeName))
{
@@ -137,13 +162,17 @@ public class AdminHandlersProxy {
log.debug("Proxying {} request to node {}", uriPath, nodeName);
URI baseUri =
URI.create(zkController.zkStateReader.getBaseUrlForNodeName(nodeName));
- SolrRequest<?> proxyReq = new GenericSolrRequest(SolrRequest.METHOD.GET,
uriPath, params);
+
+ SolrRequest<?> proxyReq = createRequest(apiVersion, uriPath, params);
// Set response parser based on wt parameter to ensure correct format is
used
- String wt = params.get("wt");
- if ("prometheus".equals(wt) || "openmetrics".equals(wt)) {
+ String wt = params.get(CommonParams.WT);
+ if (MetricUtils.PROMETHEUS_METRICS_WT.equals(wt) ||
MetricUtils.OPEN_METRICS_WT.equals(wt)) {
proxyReq.setResponseParser(new InputStreamResponseParser(wt));
}
+ if (wt == null && uriPath.endsWith("/metrics")) {
+ proxyReq.setResponseParser(new
InputStreamResponseParser(MetricUtils.PROMETHEUS_METRICS_WT));
+ }
try {
return zkController
@@ -195,6 +224,7 @@ public class AdminHandlersProxy {
* @param rsp the response to populate
*/
private static void handlePrometheusSingleNode(
+ String apiVersion,
String nodeName,
String pathStr,
ModifiableSolrParams params,
@@ -205,7 +235,7 @@ public class AdminHandlersProxy {
// Keep wt=prometheus for the remote request so MetricsHandler accepts it
// The InputStreamResponseParser will return the Prometheus text in a
"stream" key
Future<NamedList<Object>> response =
- callRemoteNode(nodeName, pathStr, params, container.getZkController());
+ callRemoteNode(apiVersion, nodeName, pathStr, params,
container.getZkController());
try {
try {
@@ -220,4 +250,12 @@ public class AdminHandlersProxy {
throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, t);
}
}
+
+ private static SolrRequest<?> createRequest(
+ String apiVersion, String uriPath, SolrParams params) {
+ if (apiVersion.equalsIgnoreCase("V1")) {
+ return new GenericSolrRequest(SolrRequest.METHOD.GET, uriPath, params);
+ }
+ return new GenericV2SolrRequest(SolrRequest.METHOD.GET, uriPath, params);
+ }
}
diff --git
a/solr/core/src/java/org/apache/solr/handler/admin/MetricsHandler.java
b/solr/core/src/java/org/apache/solr/handler/admin/MetricsHandler.java
index a0ab70e07fd..eaa5510bb02 100644
--- a/solr/core/src/java/org/apache/solr/handler/admin/MetricsHandler.java
+++ b/solr/core/src/java/org/apache/solr/handler/admin/MetricsHandler.java
@@ -17,28 +17,21 @@
package org.apache.solr.handler.admin;
-import io.prometheus.metrics.model.snapshots.CounterSnapshot;
-import io.prometheus.metrics.model.snapshots.GaugeSnapshot;
-import io.prometheus.metrics.model.snapshots.HistogramSnapshot;
-import io.prometheus.metrics.model.snapshots.InfoSnapshot;
import io.prometheus.metrics.model.snapshots.MetricSnapshot;
import io.prometheus.metrics.model.snapshots.MetricSnapshots;
import java.util.ArrayList;
-import java.util.HashMap;
+import java.util.Collection;
import java.util.List;
-import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
-import java.util.TreeMap;
import java.util.function.BiConsumer;
-import java.util.regex.Pattern;
+import org.apache.solr.api.JerseyResource;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.params.CommonParams;
import org.apache.solr.common.params.SolrParams;
-import org.apache.solr.common.util.CommonTestInjection;
-import org.apache.solr.common.util.StrUtils;
import org.apache.solr.core.CoreContainer;
import org.apache.solr.handler.RequestHandlerBase;
+import org.apache.solr.handler.admin.api.GetMetrics;
import org.apache.solr.metrics.SolrMetricManager;
import org.apache.solr.metrics.otel.FilterablePrometheusMetricReader;
import org.apache.solr.request.SolrQueryRequest;
@@ -46,6 +39,7 @@ import org.apache.solr.request.SolrRequestInfo;
import org.apache.solr.response.SolrQueryResponse;
import org.apache.solr.security.AuthorizationContext;
import org.apache.solr.security.PermissionNameProvider;
+import org.apache.solr.util.stats.MetricUtils;
/** Request handler to return metrics */
public class MetricsHandler extends RequestHandlerBase implements
PermissionNameProvider {
@@ -61,25 +55,9 @@ public class MetricsHandler extends RequestHandlerBase
implements PermissionName
public static final String EXPR_PARAM = "expr";
public static final String TYPE_PARAM = "type";
- // Prometheus filtering parameters
- public static final String CATEGORY_PARAM = "category";
- public static final String CORE_PARAM = "core";
- public static final String COLLECTION_PARAM = "collection";
- public static final String SHARD_PARAM = "shard";
- public static final String REPLICA_TYPE_PARAM = "replica_type";
- public static final String METRIC_NAME_PARAM = "name";
- private static final Set<String> labelFilterKeys =
- Set.of(CATEGORY_PARAM, CORE_PARAM, COLLECTION_PARAM, SHARD_PARAM,
REPLICA_TYPE_PARAM);
-
- public static final String PROMETHEUS_METRICS_WT = "prometheus";
- public static final String OPEN_METRICS_WT = "openmetrics";
-
public static final String ALL = "all";
- private static final Pattern KEY_SPLIT_REGEX =
- Pattern.compile("(?<!" + Pattern.quote("\\") + ")" + Pattern.quote(":"));
private final CoreContainer cc;
- private final Map<String, String> injectedSysProps =
CommonTestInjection.injectAdditionalProps();
private final boolean enabled;
public MetricsHandler(CoreContainer coreContainer) {
@@ -115,7 +93,8 @@ public class MetricsHandler extends RequestHandlerBase
implements PermissionName
if (format == null) {
req.setParams(SolrParams.wrapDefaults(params, SolrParams.of("wt",
"prometheus")));
- } else if (!PROMETHEUS_METRICS_WT.equals(format) &&
!OPEN_METRICS_WT.equals(format)) {
+ } else if (!MetricUtils.PROMETHEUS_METRICS_WT.equals(format)
+ && !MetricUtils.OPEN_METRICS_WT.equals(format)) {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"Only Prometheus and OpenMetrics metric formats supported.
Unsupported format requested: "
@@ -139,13 +118,13 @@ public class MetricsHandler extends RequestHandlerBase
implements PermissionName
return;
}
- Set<String> metricNames = readParamsAsSet(params, METRIC_NAME_PARAM);
- SortedMap<String, Set<String>> labelFilters = labelFilters(params);
+ Set<String> metricNames = MetricUtils.readParamsAsSet(params,
MetricUtils.METRIC_NAME_PARAM);
+ SortedMap<String, Set<String>> labelFilters =
MetricUtils.labelFilters(params);
if (metricNames.isEmpty() && labelFilters.isEmpty()) {
consumer.accept(
"metrics",
- mergeSnapshots(
+ MetricUtils.mergeSnapshots(
metricManager.getPrometheusMetricReaders().values().stream()
.flatMap(r -> r.collect().stream())
.toList()));
@@ -160,119 +139,10 @@ public class MetricsHandler extends RequestHandlerBase
implements PermissionName
}
// Merge all filtered snapshots and return the merged result
- MetricSnapshots mergedSnapshots = mergeSnapshots(allSnapshots);
+ MetricSnapshots mergedSnapshots = MetricUtils.mergeSnapshots(allSnapshots);
consumer.accept("metrics", mergedSnapshots);
}
- private SortedMap<String, Set<String>> labelFilters(SolrParams params) {
- SortedMap<String, Set<String>> labelFilters = new TreeMap<>();
- labelFilterKeys.forEach(
- (paramName) -> {
- Set<String> filterValues = readParamsAsSet(params, paramName);
- if (!filterValues.isEmpty()) {
- labelFilters.put(paramName, filterValues);
- }
- });
-
- return labelFilters;
- }
-
- private Set<String> readParamsAsSet(SolrParams params, String paramName) {
- String[] paramValues = params.getParams(paramName);
- if (paramValues == null || paramValues.length == 0) {
- return Set.of();
- }
-
- List<String> paramSet = new ArrayList<>();
- for (String param : paramValues) {
- paramSet.addAll(StrUtils.splitSmart(param, ','));
- }
- return Set.copyOf(paramSet);
- }
-
- /**
- * Merge a collection of individual {@link MetricSnapshot} instances into
one {@link
- * MetricSnapshots}. This is necessary because we create a {@link
- * io.opentelemetry.sdk.metrics.SdkMeterProvider} per Solr core resulting in
duplicate metric
- * names across cores which is an illegal format if under the same
prometheus grouping.
- */
- private MetricSnapshots mergeSnapshots(List<MetricSnapshot> snapshots) {
- Map<String, CounterSnapshot.Builder> counterSnapshotMap = new HashMap<>();
- Map<String, GaugeSnapshot.Builder> gaugeSnapshotMap = new HashMap<>();
- Map<String, HistogramSnapshot.Builder> histogramSnapshotMap = new
HashMap<>();
- InfoSnapshot otelInfoSnapshots = null;
-
- for (MetricSnapshot snapshot : snapshots) {
- String metricName = snapshot.getMetadata().getPrometheusName();
-
- switch (snapshot) {
- case CounterSnapshot counterSnapshot -> {
- CounterSnapshot.Builder builder =
- counterSnapshotMap.computeIfAbsent(
- metricName,
- k -> {
- var base =
- CounterSnapshot.builder()
- .name(counterSnapshot.getMetadata().getName())
- .help(counterSnapshot.getMetadata().getHelp());
- return counterSnapshot.getMetadata().hasUnit()
- ? base.unit(counterSnapshot.getMetadata().getUnit())
- : base;
- });
- counterSnapshot.getDataPoints().forEach(builder::dataPoint);
- }
- case GaugeSnapshot gaugeSnapshot -> {
- GaugeSnapshot.Builder builder =
- gaugeSnapshotMap.computeIfAbsent(
- metricName,
- k -> {
- var base =
- GaugeSnapshot.builder()
- .name(gaugeSnapshot.getMetadata().getName())
- .help(gaugeSnapshot.getMetadata().getHelp());
- return gaugeSnapshot.getMetadata().hasUnit()
- ? base.unit(gaugeSnapshot.getMetadata().getUnit())
- : base;
- });
- gaugeSnapshot.getDataPoints().forEach(builder::dataPoint);
- }
- case HistogramSnapshot histogramSnapshot -> {
- HistogramSnapshot.Builder builder =
- histogramSnapshotMap.computeIfAbsent(
- metricName,
- k -> {
- var base =
- HistogramSnapshot.builder()
- .name(histogramSnapshot.getMetadata().getName())
- .help(histogramSnapshot.getMetadata().getHelp());
- return histogramSnapshot.getMetadata().hasUnit()
- ? base.unit(histogramSnapshot.getMetadata().getUnit())
- : base;
- });
- histogramSnapshot.getDataPoints().forEach(builder::dataPoint);
- }
- case InfoSnapshot infoSnapshot -> {
- // InfoSnapshot is a special case in that each SdkMeterProvider will
create a duplicate
- // metric called target_info containing OTEL SDK metadata. Only one
of these need to be
- // kept
- if (otelInfoSnapshots == null)
- otelInfoSnapshots =
- new InfoSnapshot(infoSnapshot.getMetadata(),
infoSnapshot.getDataPoints());
- }
- default -> {
- // Handle unexpected snapshot types gracefully
- }
- }
- }
-
- MetricSnapshots.Builder snapshotsBuilder = MetricSnapshots.builder();
- counterSnapshotMap.values().forEach(b ->
snapshotsBuilder.metricSnapshot(b.build()));
- gaugeSnapshotMap.values().forEach(b ->
snapshotsBuilder.metricSnapshot(b.build()));
- histogramSnapshotMap.values().forEach(b ->
snapshotsBuilder.metricSnapshot(b.build()));
- if (otelInfoSnapshots != null)
snapshotsBuilder.metricSnapshot(otelInfoSnapshots);
- return snapshotsBuilder.build();
- }
-
@Override
public String getDescription() {
return "A handler to return all the metrics gathered by Solr";
@@ -282,4 +152,14 @@ public class MetricsHandler extends RequestHandlerBase
implements PermissionName
public Category getCategory() {
return Category.ADMIN;
}
+
+ @Override
+ public Collection<Class<? extends JerseyResource>> getJerseyResources() {
+ return List.of(GetMetrics.class);
+ }
+
+ @Override
+ public Boolean registerV2() {
+ return Boolean.TRUE;
+ }
}
diff --git
a/solr/core/src/java/org/apache/solr/handler/admin/api/GetMetrics.java
b/solr/core/src/java/org/apache/solr/handler/admin/api/GetMetrics.java
new file mode 100644
index 00000000000..ad45a8ad14b
--- /dev/null
+++ b/solr/core/src/java/org/apache/solr/handler/admin/api/GetMetrics.java
@@ -0,0 +1,181 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.solr.handler.admin.api;
+
+import io.prometheus.metrics.model.snapshots.MetricSnapshot;
+import io.prometheus.metrics.model.snapshots.MetricSnapshots;
+import jakarta.inject.Inject;
+import jakarta.ws.rs.WebApplicationException;
+import jakarta.ws.rs.core.StreamingOutput;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.lang.invoke.MethodHandles;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.SortedMap;
+import org.apache.solr.client.api.endpoint.MetricsApi;
+import org.apache.solr.common.SolrException;
+import org.apache.solr.common.params.CommonParams;
+import org.apache.solr.common.params.ModifiableSolrParams;
+import org.apache.solr.common.params.SolrParams;
+import org.apache.solr.core.CoreContainer;
+import org.apache.solr.handler.admin.AdminHandlersProxy;
+import org.apache.solr.jersey.PermissionName;
+import org.apache.solr.metrics.SolrMetricManager;
+import org.apache.solr.metrics.otel.FilterablePrometheusMetricReader;
+import org.apache.solr.request.SolrQueryRequest;
+import org.apache.solr.response.PrometheusResponseWriter;
+import org.apache.solr.response.SolrQueryResponse;
+import org.apache.solr.security.PermissionNameProvider;
+import org.apache.solr.util.stats.MetricUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * V2 API implementation to fetch metrics gathered by Solr.
+ *
+ * <p>This API is analogous to the v1 /admin/metrics endpoint.
+ */
+public class GetMetrics extends AdminAPIBase implements MetricsApi {
+
+ private static final Logger log =
LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+
+ private final SolrMetricManager metricManager;
+ private final boolean enabled;
+
+ @Inject
+ public GetMetrics(
+ CoreContainer coreContainer,
+ SolrQueryRequest solrQueryRequest,
+ SolrQueryResponse solrQueryResponse) {
+ super(coreContainer, solrQueryRequest, solrQueryResponse);
+ this.metricManager = coreContainer.getMetricManager();
+ this.enabled = coreContainer.getConfig().getMetricsConfig().isEnabled();
+ }
+
+ @Override
+ @PermissionName(PermissionNameProvider.Name.METRICS_READ_PERM)
+ public StreamingOutput getMetrics(
+ String acceptHeader,
+ String node,
+ String name,
+ String category,
+ String core,
+ String collection,
+ String shard,
+ String replicaType) {
+
+ // Convert request params into SolrParams, to reuse existing code.
+ ModifiableSolrParams params =
+ new ModifiableSolrParams(
+ Map.of(
+ MetricUtils.NODE_PARAM, new String[] {node},
+ MetricUtils.METRIC_NAME_PARAM, new String[] {name},
+ MetricUtils.CATEGORY_PARAM, new String[] {category},
+ MetricUtils.CORE_PARAM, new String[] {core},
+ MetricUtils.COLLECTION_PARAM, new String[] {collection},
+ MetricUtils.SHARD_PARAM, new String[] {shard},
+ MetricUtils.REPLICA_TYPE_PARAM, new String[] {replicaType}));
+
+ solrQueryRequest.setParams(params);
+
+ validateRequest(acceptHeader);
+
+ if (proxyToNodes()) {
+ return null;
+ }
+
+ // Using the same logic, same methods, as in MetricsHandler.handleRequest
+ Set<String> metricNames = MetricUtils.readParamsAsSet(params,
MetricUtils.METRIC_NAME_PARAM);
+ SortedMap<String, Set<String>> labelFilters =
MetricUtils.labelFilters(params);
+
+ return doGetMetrics(metricNames, labelFilters);
+ }
+
+ private void validateRequest(String acceptHeader) {
+ if (!enabled) {
+ throw new SolrException(
+ SolrException.ErrorCode.INVALID_STATE, "Metrics collection is
disabled");
+ }
+
+ if (metricManager == null) {
+ throw new SolrException(
+ SolrException.ErrorCode.INVALID_STATE, "SolrMetricManager instance
not initialized");
+ }
+
+ // Should handle 'Accept' header only, but a lot of code still expects
'wt'.
+ if (acceptHeader == null) {
+ solrQueryRequest.setParams(
+ SolrParams.wrapDefaults(
+ solrQueryRequest.getParams(),
+ SolrParams.of(CommonParams.WT,
MetricUtils.PROMETHEUS_METRICS_WT)));
+ } else if
(!PrometheusResponseWriter.CONTENT_TYPE_PROMETHEUS.equals(acceptHeader)
+ &&
!PrometheusResponseWriter.CONTENT_TYPE_OPEN_METRICS.equals(acceptHeader)) {
+ throw new SolrException(
+ SolrException.ErrorCode.BAD_REQUEST,
+ "Only Prometheus and OpenMetrics metric formats supported.
Unsupported format requested: "
+ + acceptHeader);
+ }
+ }
+
+ private boolean proxyToNodes() {
+ try {
+ if (coreContainer != null
+ && AdminHandlersProxy.maybeProxyToNodes(
+ "V2", solrQueryRequest, solrQueryResponse, coreContainer)) {
+ return true; // Request was proxied to other node
+ }
+ } catch (Exception e) {
+ log.warn("Exception proxying to other node", e);
+ }
+ return false;
+ }
+
+ private StreamingOutput doGetMetrics(
+ Set<String> metricNames, SortedMap<String, Set<String>> labelFilters) {
+
+ List<MetricSnapshot> snapshots = new ArrayList<>();
+
+ if ((metricNames == null || metricNames.isEmpty()) &&
labelFilters.isEmpty()) {
+ snapshots.addAll(
+ metricManager.getPrometheusMetricReaders().values().stream()
+ .flatMap(r -> r.collect().stream())
+ .toList());
+ } else {
+ for (FilterablePrometheusMetricReader reader :
+ metricManager.getPrometheusMetricReaders().values()) {
+ MetricSnapshots filteredSnapshots = reader.collect(metricNames,
labelFilters);
+ filteredSnapshots.forEach(snapshots::add);
+ }
+ }
+
+ return writeMetricSnapshots(MetricUtils.mergeSnapshots(snapshots));
+ }
+
+ private StreamingOutput writeMetricSnapshots(MetricSnapshots snapshots) {
+ return new StreamingOutput() {
+ @Override
+ public void write(OutputStream output) throws IOException,
WebApplicationException {
+ PrometheusResponseWriter writer = new PrometheusResponseWriter();
+ writer.writeMetricSnapshots(output, solrQueryRequest, snapshots);
+ output.flush();
+ }
+ };
+ }
+}
diff --git a/solr/core/src/java/org/apache/solr/handler/api/V2ApiUtils.java
b/solr/core/src/java/org/apache/solr/handler/api/V2ApiUtils.java
index 9a69d4e2364..737a63cef1a 100644
--- a/solr/core/src/java/org/apache/solr/handler/api/V2ApiUtils.java
+++ b/solr/core/src/java/org/apache/solr/handler/api/V2ApiUtils.java
@@ -32,6 +32,7 @@ import org.apache.solr.common.util.EnvUtils;
import org.apache.solr.common.util.NamedList;
import org.apache.solr.common.util.StrUtils;
import org.apache.solr.common.util.Utils;
+import org.apache.solr.response.PrometheusResponseWriter;
import org.apache.solr.response.RawResponseWriter;
import org.apache.solr.response.SolrQueryResponse;
@@ -105,6 +106,10 @@ public class V2ApiUtils {
return JAVABIN_CONTENT_TYPE_V2;
case FILE_STREAM:
return RawResponseWriter.CONTENT_TYPE;
+ case "prometheus":
+ return PrometheusResponseWriter.CONTENT_TYPE_PROMETHEUS;
+ case "openmetrics":
+ return PrometheusResponseWriter.CONTENT_TYPE_OPEN_METRICS;
default:
return defaultMediaType;
}
diff --git a/solr/core/src/java/org/apache/solr/jersey/JerseyApplications.java
b/solr/core/src/java/org/apache/solr/jersey/JerseyApplications.java
index 3ac1ef79600..6eed07d2af8 100644
--- a/solr/core/src/java/org/apache/solr/jersey/JerseyApplications.java
+++ b/solr/core/src/java/org/apache/solr/jersey/JerseyApplications.java
@@ -48,6 +48,8 @@ public class JerseyApplications {
register(MessageBodyWriters.XmlMessageBodyWriter.class, 5);
register(MessageBodyWriters.CsvMessageBodyWriter.class, 5);
register(MessageBodyWriters.RawMessageBodyWriter.class, 5);
+ register(MessageBodyWriters.PrometheusMessageBodyWriter.class, 5);
+ register(MessageBodyWriters.OpenmetricsMessageBodyWriter.class, 5);
register(MessageBodyReaders.CachingJsonMessageBodyReader.class, 2);
register(SolrJacksonMapper.class);
diff --git a/solr/core/src/java/org/apache/solr/jersey/MessageBodyWriters.java
b/solr/core/src/java/org/apache/solr/jersey/MessageBodyWriters.java
index 4af087ead58..cf4d5a434ab 100644
--- a/solr/core/src/java/org/apache/solr/jersey/MessageBodyWriters.java
+++ b/solr/core/src/java/org/apache/solr/jersey/MessageBodyWriters.java
@@ -38,6 +38,7 @@ import org.apache.solr.handler.api.V2ApiUtils;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.response.CSVResponseWriter;
import org.apache.solr.response.JavaBinResponseWriter;
+import org.apache.solr.response.PrometheusResponseWriter;
import org.apache.solr.response.QueryResponseWriter;
import org.apache.solr.response.RawResponseWriter;
import org.apache.solr.response.SolrQueryResponse;
@@ -107,6 +108,35 @@ public class MessageBodyWriters {
}
}
+ @Produces(PrometheusResponseWriter.CONTENT_TYPE_PROMETHEUS)
+ public static class PrometheusMessageBodyWriter extends BaseMessageBodyWriter
+ implements MessageBodyWriter<Object> {
+ @Override
+ public QueryResponseWriter createResponseWriter() {
+ return new PrometheusResponseWriter();
+ }
+
+ @Override
+ public String getSupportedMediaType() {
+ return PrometheusResponseWriter.CONTENT_TYPE_PROMETHEUS;
+ }
+ }
+
+ @Produces(PrometheusResponseWriter.CONTENT_TYPE_OPEN_METRICS)
+ public static class OpenmetricsMessageBodyWriter extends
BaseMessageBodyWriter
+ implements MessageBodyWriter<Object> {
+ @Override
+ public QueryResponseWriter createResponseWriter() {
+ // same writer handles both Prometheus and OpenMetrics
+ return new PrometheusResponseWriter();
+ }
+
+ @Override
+ public String getSupportedMediaType() {
+ return PrometheusResponseWriter.CONTENT_TYPE_OPEN_METRICS;
+ }
+ }
+
public abstract static class BaseMessageBodyWriter implements
MessageBodyWriter<Object> {
@Context protected ResourceContext resourceContext;
diff --git
a/solr/core/src/java/org/apache/solr/response/PrometheusResponseWriter.java
b/solr/core/src/java/org/apache/solr/response/PrometheusResponseWriter.java
index 610fbaa8df2..d56a85b9bbe 100644
--- a/solr/core/src/java/org/apache/solr/response/PrometheusResponseWriter.java
+++ b/solr/core/src/java/org/apache/solr/response/PrometheusResponseWriter.java
@@ -16,8 +16,6 @@
*/
package org.apache.solr.response;
-import static org.apache.solr.handler.admin.MetricsHandler.OPEN_METRICS_WT;
-
import io.prometheus.metrics.expositionformats.OpenMetricsTextFormatWriter;
import io.prometheus.metrics.expositionformats.PrometheusTextFormatWriter;
import io.prometheus.metrics.model.snapshots.MetricSnapshots;
@@ -27,10 +25,14 @@ import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import org.apache.solr.common.params.CommonParams;
import org.apache.solr.handler.admin.MetricsHandler;
+import org.apache.solr.handler.admin.api.GetMetrics;
import org.apache.solr.request.SolrQueryRequest;
+import org.apache.solr.util.stats.MetricUtils;
-/** Response writer for Prometheus metrics. This is used only by the {@link
MetricsHandler} */
-@SuppressWarnings(value = "unchecked")
+/**
+ * Response writer for Prometheus metrics. This is used only by the {@link
MetricsHandler} and V2
+ * API implementation {@link GetMetrics}
+ */
public class PrometheusResponseWriter implements QueryResponseWriter {
// not TextQueryResponseWriter because Prometheus libs work with an
OutputStream
@@ -64,6 +66,12 @@ public class PrometheusResponseWriter implements
QueryResponseWriter {
throw new IOException("No metrics found in response");
}
MetricSnapshots snapshots = (MetricSnapshots) metrics;
+ writeMetricSnapshots(out, request, snapshots);
+ }
+
+ /** Write MetricSnapshots in Prometheus or OpenMetrics format */
+ public void writeMetricSnapshots(
+ OutputStream out, SolrQueryRequest request, MetricSnapshots snapshots)
throws IOException {
if (writeOpenMetricsFormat(request)) {
new OpenMetricsTextFormatWriter(false, true).write(out, snapshots);
} else {
@@ -78,7 +86,7 @@ public class PrometheusResponseWriter implements
QueryResponseWriter {
private boolean writeOpenMetricsFormat(SolrQueryRequest request) {
String wt = request.getParams().get(CommonParams.WT);
- if (OPEN_METRICS_WT.equals(wt)) {
+ if (MetricUtils.OPEN_METRICS_WT.equals(wt)) {
return true;
}
diff --git
a/solr/core/src/java/org/apache/solr/response/QueryResponseWriter.java
b/solr/core/src/java/org/apache/solr/response/QueryResponseWriter.java
index f15feac9f67..83469dfece1 100644
--- a/solr/core/src/java/org/apache/solr/response/QueryResponseWriter.java
+++ b/solr/core/src/java/org/apache/solr/response/QueryResponseWriter.java
@@ -45,6 +45,9 @@ import org.apache.solr.util.plugin.NamedListInitializedPlugin;
public interface QueryResponseWriter extends NamedListInitializedPlugin {
public static String CONTENT_TYPE_XML_UTF8 = "application/xml;
charset=UTF-8";
public static String CONTENT_TYPE_TEXT_UTF8 = "text/plain; charset=UTF-8";
+ public static final String CONTENT_TYPE_PROMETHEUS = "text/plain;
version=0.0.4";
+ public static final String CONTENT_TYPE_OPEN_METRICS =
+ "application/openmetrics-text; version=1.0.0; charset=utf-8";
/**
* Writes the response to the {@link OutputStream}. {@code contentType} is
from {@link
diff --git
a/solr/core/src/java/org/apache/solr/response/ResponseWritersRegistry.java
b/solr/core/src/java/org/apache/solr/response/ResponseWritersRegistry.java
index cfd04e28714..f7d342bc286 100644
--- a/solr/core/src/java/org/apache/solr/response/ResponseWritersRegistry.java
+++ b/solr/core/src/java/org/apache/solr/response/ResponseWritersRegistry.java
@@ -16,8 +16,8 @@
*/
package org.apache.solr.response;
-import static org.apache.solr.handler.admin.MetricsHandler.OPEN_METRICS_WT;
-import static
org.apache.solr.handler.admin.MetricsHandler.PROMETHEUS_METRICS_WT;
+import static org.apache.solr.util.stats.MetricUtils.OPEN_METRICS_WT;
+import static org.apache.solr.util.stats.MetricUtils.PROMETHEUS_METRICS_WT;
import java.util.Map;
import org.apache.solr.common.params.CommonParams;
diff --git a/solr/core/src/java/org/apache/solr/util/stats/MetricUtils.java
b/solr/core/src/java/org/apache/solr/util/stats/MetricUtils.java
index 5c878ab6476..506799af323 100644
--- a/solr/core/src/java/org/apache/solr/util/stats/MetricUtils.java
+++ b/solr/core/src/java/org/apache/solr/util/stats/MetricUtils.java
@@ -18,9 +18,25 @@ package org.apache.solr.util.stats;
import com.codahale.metrics.Snapshot;
import com.codahale.metrics.Timer;
+import io.prometheus.metrics.model.snapshots.CounterSnapshot;
+import io.prometheus.metrics.model.snapshots.GaugeSnapshot;
+import io.prometheus.metrics.model.snapshots.HistogramSnapshot;
+import io.prometheus.metrics.model.snapshots.InfoSnapshot;
+import io.prometheus.metrics.model.snapshots.MetricSnapshot;
+import io.prometheus.metrics.model.snapshots.MetricSnapshots;
import java.lang.management.OperatingSystemMXBean;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.SortedMap;
+import java.util.TreeMap;
import java.util.concurrent.TimeUnit;
+import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
+import org.apache.solr.common.util.StrUtils;
/** Metrics specific utility functions. */
public class MetricUtils {
@@ -49,6 +65,39 @@ public class MetricUtils {
private static final String P999 = "p999";
private static final String P999_MS = P999 + MS;
+ // 'wt' values for V1 Metrics API
+ public static final String PROMETHEUS_METRICS_WT = "prometheus";
+ public static final String OPEN_METRICS_WT = "openmetrics";
+
+ // Metrics API query params
+ public static final String NODE_PARAM = "node";
+ public static final String CATEGORY_PARAM = "category";
+ public static final String CORE_PARAM = "core";
+ public static final String COLLECTION_PARAM = "collection";
+ public static final String SHARD_PARAM = "shard";
+ public static final String REPLICA_TYPE_PARAM = "replica_type";
+ public static final String METRIC_NAME_PARAM = "name";
+
+ private static final Set<String> labelFilterKeys =
+ Set.of(
+ MetricUtils.CATEGORY_PARAM,
+ MetricUtils.CORE_PARAM,
+ MetricUtils.COLLECTION_PARAM,
+ MetricUtils.SHARD_PARAM,
+ MetricUtils.REPLICA_TYPE_PARAM);
+
+ /**
+ * These are well-known implementations of {@link
java.lang.management.OperatingSystemMXBean}.
+ * Some of them provide additional useful properties beyond those declared
by the interface.
+ */
+ public static String[] OS_MXBEAN_CLASSES =
+ new String[] {
+ OperatingSystemMXBean.class.getName(),
+ "com.sun.management.OperatingSystemMXBean",
+ "com.sun.management.UnixOperatingSystemMXBean",
+ "com.ibm.lang.management.OperatingSystemMXBean"
+ };
+
/**
* Adds metrics from a Timer to a NamedList, using well-known back-compat
names.
*
@@ -89,14 +138,139 @@ public class MetricUtils {
}
/**
- * These are well-known implementations of {@link
java.lang.management.OperatingSystemMXBean}.
- * Some of them provide additional useful properties beyond those declared
by the interface.
+ * Merge a collection of individual {@link MetricSnapshot} instances into
one {@link
+ * MetricSnapshots}. This is necessary because we create a {@link
+ * io.opentelemetry.sdk.metrics.SdkMeterProvider} per Solr core resulting in
duplicate metric
+ * names across cores which is an illegal format if under the same
prometheus grouping.
*/
- public static String[] OS_MXBEAN_CLASSES =
- new String[] {
- OperatingSystemMXBean.class.getName(),
- "com.sun.management.OperatingSystemMXBean",
- "com.sun.management.UnixOperatingSystemMXBean",
- "com.ibm.lang.management.OperatingSystemMXBean"
- };
+ public static MetricSnapshots mergeSnapshots(List<MetricSnapshot> snapshots)
{
+ Map<String, CounterSnapshot.Builder> counterSnapshotMap = new HashMap<>();
+ Map<String, GaugeSnapshot.Builder> gaugeSnapshotMap = new HashMap<>();
+ Map<String, HistogramSnapshot.Builder> histogramSnapshotMap = new
HashMap<>();
+ InfoSnapshot otelInfoSnapshots = null;
+
+ for (MetricSnapshot snapshot : snapshots) {
+ String metricName = snapshot.getMetadata().getPrometheusName();
+
+ switch (snapshot) {
+ case CounterSnapshot counterSnapshot -> {
+ CounterSnapshot.Builder builder =
+ counterSnapshotMap.computeIfAbsent(
+ metricName,
+ k -> {
+ var base =
+ CounterSnapshot.builder()
+ .name(counterSnapshot.getMetadata().getName())
+ .help(counterSnapshot.getMetadata().getHelp());
+ return counterSnapshot.getMetadata().hasUnit()
+ ? base.unit(counterSnapshot.getMetadata().getUnit())
+ : base;
+ });
+ counterSnapshot.getDataPoints().forEach(builder::dataPoint);
+ }
+ case GaugeSnapshot gaugeSnapshot -> {
+ GaugeSnapshot.Builder builder =
+ gaugeSnapshotMap.computeIfAbsent(
+ metricName,
+ k -> {
+ var base =
+ GaugeSnapshot.builder()
+ .name(gaugeSnapshot.getMetadata().getName())
+ .help(gaugeSnapshot.getMetadata().getHelp());
+ return gaugeSnapshot.getMetadata().hasUnit()
+ ? base.unit(gaugeSnapshot.getMetadata().getUnit())
+ : base;
+ });
+ gaugeSnapshot.getDataPoints().forEach(builder::dataPoint);
+ }
+ case HistogramSnapshot histogramSnapshot -> {
+ HistogramSnapshot.Builder builder =
+ histogramSnapshotMap.computeIfAbsent(
+ metricName,
+ k -> {
+ var base =
+ HistogramSnapshot.builder()
+ .name(histogramSnapshot.getMetadata().getName())
+ .help(histogramSnapshot.getMetadata().getHelp());
+ return histogramSnapshot.getMetadata().hasUnit()
+ ? base.unit(histogramSnapshot.getMetadata().getUnit())
+ : base;
+ });
+ histogramSnapshot.getDataPoints().forEach(builder::dataPoint);
+ }
+ case InfoSnapshot infoSnapshot -> {
+ // InfoSnapshot is a special case in that each SdkMeterProvider will
create a duplicate
+ // metric called target_info containing OTEL SDK metadata. Only one
of these need to be
+ // kept
+ if (otelInfoSnapshots == null)
+ otelInfoSnapshots =
+ new InfoSnapshot(infoSnapshot.getMetadata(),
infoSnapshot.getDataPoints());
+ }
+ default -> {
+ // Handle unexpected snapshot types gracefully
+ }
+ }
+ }
+
+ MetricSnapshots.Builder snapshotsBuilder = MetricSnapshots.builder();
+ counterSnapshotMap.values().forEach(b ->
snapshotsBuilder.metricSnapshot(b.build()));
+ gaugeSnapshotMap.values().forEach(b ->
snapshotsBuilder.metricSnapshot(b.build()));
+ histogramSnapshotMap.values().forEach(b ->
snapshotsBuilder.metricSnapshot(b.build()));
+ if (otelInfoSnapshots != null)
snapshotsBuilder.metricSnapshot(otelInfoSnapshots);
+ return snapshotsBuilder.build();
+ }
+
+ /** Gather label filters */
+ public static SortedMap<String, Set<String>> labelFilters(SolrParams params)
{
+ SortedMap<String, Set<String>> labelFilters = new TreeMap<>();
+ labelFilterKeys.forEach(
+ (paramName) -> {
+ Set<String> filterValues = readParamsAsSet(params, paramName);
+ if (!filterValues.isEmpty()) {
+ labelFilters.put(paramName, filterValues);
+ }
+ });
+
+ return labelFilters;
+ }
+
+ /** Add label filters to the filters map */
+ public static void addLabelFilters(String value, Map<String, Set<String>>
filters) {
+ labelFilterKeys.forEach(
+ (paramName) -> {
+ Set<String> filterValues = paramValueAsSet(value);
+ if (!filterValues.isEmpty()) {
+ filters.put(paramName, filterValues);
+ }
+ });
+ }
+
+ /** Split the coma-separated param values into a set */
+ public static Set<String> paramValueAsSet(String paramValue) {
+ String[] values = paramValue.split(",");
+ List<String> valuesSet = new ArrayList<>();
+ for (String value : values) {
+ valuesSet.add(value);
+ }
+ return Set.copyOf(valuesSet);
+ }
+
+ /**
+ * Read Solr parameters as a Set.
+ *
+ * <p>Could probably be moved to a more generic utility class, but only used
in MetricsHandler and
+ * GetMetrics resource.
+ */
+ public static Set<String> readParamsAsSet(SolrParams params, String
paramName) {
+ String[] paramValues = params.getParams(paramName);
+ if (paramValues == null || paramValues.length == 0) {
+ return Set.of();
+ }
+
+ Set<String> paramSet = new HashSet<>();
+ for (String param : paramValues) {
+ if (param != null && param.length() > 0)
paramSet.addAll(StrUtils.splitSmart(param, ','));
+ }
+ return paramSet;
+ }
}
diff --git
a/solr/core/src/test/org/apache/solr/cloud/BasicDistributedZkTest.java
b/solr/core/src/test/org/apache/solr/cloud/BasicDistributedZkTest.java
index 920b1aa2f3b..758588d7465 100644
--- a/solr/core/src/test/org/apache/solr/cloud/BasicDistributedZkTest.java
+++ b/solr/core/src/test/org/apache/solr/cloud/BasicDistributedZkTest.java
@@ -59,7 +59,6 @@ import org.apache.solr.client.solrj.response.FacetField;
import org.apache.solr.client.solrj.response.Group;
import org.apache.solr.client.solrj.response.GroupCommand;
import org.apache.solr.client.solrj.response.GroupResponse;
-import org.apache.solr.client.solrj.response.InputStreamResponseParser;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.client.solrj.response.UpdateResponse;
import org.apache.solr.cloud.api.collections.CollectionHandlingUtils;
@@ -1283,7 +1282,6 @@ public class BasicDistributedZkTest extends
AbstractFullDistribZkTestBase {
.withSocketTimeout(60000, TimeUnit.MILLISECONDS)
.build()) {
var req = new MetricsRequest(SolrParams.of("wt", "prometheus"));
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
NamedList<Object> resp = client.request(req);
try (InputStream in = (InputStream) resp.get("stream")) {
diff --git
a/solr/core/src/test/org/apache/solr/cloud/TestBaseStatsCacheCloud.java
b/solr/core/src/test/org/apache/solr/cloud/TestBaseStatsCacheCloud.java
index 23b6721de33..a85bc5ab9cf 100644
--- a/solr/core/src/test/org/apache/solr/cloud/TestBaseStatsCacheCloud.java
+++ b/solr/core/src/test/org/apache/solr/cloud/TestBaseStatsCacheCloud.java
@@ -27,7 +27,6 @@ import org.apache.solr.client.solrj.impl.CloudSolrClient;
import org.apache.solr.client.solrj.request.CollectionAdminRequest;
import org.apache.solr.client.solrj.request.MetricsRequest;
import org.apache.solr.client.solrj.request.UpdateRequest;
-import org.apache.solr.client.solrj.response.InputStreamResponseParser;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocument;
import org.apache.solr.common.SolrInputDocument;
@@ -132,7 +131,6 @@ public abstract class TestBaseStatsCacheCloud extends
SolrCloudTestCase {
for (JettySolrRunner jettySolrRunner : cluster.getJettySolrRunners()) {
try (SolrClient client =
getHttpSolrClient(jettySolrRunner.getBaseUrl().toString())) {
var req = new MetricsRequest(SolrParams.of("wt", "prometheus"));
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
NamedList<Object> resp = client.request(req);
try (InputStream in = (InputStream) resp.get("stream")) {
diff --git
a/solr/core/src/test/org/apache/solr/handler/admin/MetricsHandlerTest.java
b/solr/core/src/test/org/apache/solr/handler/admin/MetricsHandlerTest.java
index 7cf04d54375..7ade78cb6c6 100644
--- a/solr/core/src/test/org/apache/solr/handler/admin/MetricsHandlerTest.java
+++ b/solr/core/src/test/org/apache/solr/handler/admin/MetricsHandlerTest.java
@@ -29,6 +29,7 @@ import org.apache.solr.metrics.SolrMetricsContext;
import org.apache.solr.request.SolrQueryRequest;
import org.apache.solr.response.SolrQueryResponse;
import org.apache.solr.security.AuthorizationContext;
+import org.apache.solr.util.stats.MetricUtils;
import org.junit.BeforeClass;
import org.junit.Test;
@@ -53,8 +54,8 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
CommonParams.QT,
CommonParams.METRICS_PATH,
CommonParams.WT,
- MetricsHandler.PROMETHEUS_METRICS_WT,
- MetricsHandler.METRIC_NAME_PARAM,
+ MetricUtils.PROMETHEUS_METRICS_WT,
+ MetricUtils.METRIC_NAME_PARAM,
expectedRequestsMetricName),
resp);
var metrics = resp.getValues().get("metrics");
@@ -80,8 +81,8 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
CommonParams.QT,
CommonParams.METRICS_PATH,
CommonParams.WT,
- MetricsHandler.PROMETHEUS_METRICS_WT,
- MetricsHandler.METRIC_NAME_PARAM,
+ MetricUtils.PROMETHEUS_METRICS_WT,
+ MetricUtils.METRIC_NAME_PARAM,
expectedRequestsMetricName + "," + expectedSearcherMetricName),
resp);
@@ -105,8 +106,8 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
CommonParams.QT,
CommonParams.METRICS_PATH,
CommonParams.WT,
- MetricsHandler.PROMETHEUS_METRICS_WT,
- MetricsHandler.METRIC_NAME_PARAM,
+ MetricUtils.PROMETHEUS_METRICS_WT,
+ MetricUtils.METRIC_NAME_PARAM,
nonexistentMetricName),
resp);
var metrics = (MetricSnapshots) resp.getValues().get("metrics");
@@ -126,8 +127,8 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
CommonParams.QT,
CommonParams.METRICS_PATH,
CommonParams.WT,
- MetricsHandler.PROMETHEUS_METRICS_WT,
- MetricsHandler.CATEGORY_PARAM,
+ MetricUtils.PROMETHEUS_METRICS_WT,
+ MetricUtils.CATEGORY_PARAM,
"QUERY"),
resp);
var metrics = (MetricSnapshots) resp.getValues().get("metrics");
@@ -137,7 +138,7 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
ms.getDataPoints()
.forEach(
(dp) -> {
- assertEquals("QUERY",
dp.getLabels().get(MetricsHandler.CATEGORY_PARAM));
+ assertEquals("QUERY",
dp.getLabels().get(MetricUtils.CATEGORY_PARAM));
});
});
@@ -156,8 +157,8 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
CommonParams.QT,
CommonParams.METRICS_PATH,
CommonParams.WT,
- MetricsHandler.PROMETHEUS_METRICS_WT,
- MetricsHandler.CATEGORY_PARAM,
+ MetricUtils.PROMETHEUS_METRICS_WT,
+ MetricUtils.CATEGORY_PARAM,
"QUERY" + "," + "SEARCHER"),
resp);
@@ -168,10 +169,8 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
.forEach(
(dp) -> {
assertTrue(
-
dp.getLabels().get(MetricsHandler.CATEGORY_PARAM).equals("QUERY")
- || dp.getLabels()
- .get(MetricsHandler.CATEGORY_PARAM)
- .equals("SEARCHER"));
+
dp.getLabels().get(MetricUtils.CATEGORY_PARAM).equals("QUERY")
+ ||
dp.getLabels().get(MetricUtils.CATEGORY_PARAM).equals("SEARCHER"));
});
});
@@ -188,8 +187,8 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
CommonParams.QT,
CommonParams.METRICS_PATH,
CommonParams.WT,
- MetricsHandler.PROMETHEUS_METRICS_WT,
- MetricsHandler.CORE_PARAM,
+ MetricUtils.PROMETHEUS_METRICS_WT,
+ MetricUtils.CORE_PARAM,
"nonexistent_core_name"),
resp);
@@ -210,10 +209,10 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
CommonParams.QT,
CommonParams.METRICS_PATH,
CommonParams.WT,
- MetricsHandler.PROMETHEUS_METRICS_WT,
- MetricsHandler.CORE_PARAM,
+ MetricUtils.PROMETHEUS_METRICS_WT,
+ MetricUtils.CORE_PARAM,
"collection1",
- MetricsHandler.CATEGORY_PARAM,
+ MetricUtils.CATEGORY_PARAM,
"SEARCHER"),
resp);
@@ -224,8 +223,8 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
.forEach(
(dp) -> {
assertTrue(
-
dp.getLabels().get(MetricsHandler.CATEGORY_PARAM).equals("SEARCHER")
- &&
dp.getLabels().get(MetricsHandler.CORE_PARAM).equals("collection1"));
+
dp.getLabels().get(MetricUtils.CATEGORY_PARAM).equals("SEARCHER")
+ &&
dp.getLabels().get(MetricUtils.CORE_PARAM).equals("collection1"));
});
});
@@ -245,10 +244,10 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
CommonParams.QT,
CommonParams.METRICS_PATH,
CommonParams.WT,
- MetricsHandler.PROMETHEUS_METRICS_WT,
- MetricsHandler.CATEGORY_PARAM,
+ MetricUtils.PROMETHEUS_METRICS_WT,
+ MetricUtils.CATEGORY_PARAM,
"CORE",
- MetricsHandler.METRIC_NAME_PARAM,
+ MetricUtils.METRIC_NAME_PARAM,
expectedMetricName),
resp);
@@ -256,7 +255,7 @@ public class MetricsHandlerTest extends SolrTestCaseJ4 {
assertEquals(1, metrics.size());
var actualDatapoint = metrics.get(0).getDataPoints().getFirst();
assertEquals(expectedMetricName,
metrics.get(0).getMetadata().getPrometheusName());
- assertEquals("CORE",
actualDatapoint.getLabels().get(MetricsHandler.CATEGORY_PARAM));
+ assertEquals("CORE",
actualDatapoint.getLabels().get(MetricUtils.CATEGORY_PARAM));
handler.close();
}
diff --git
a/solr/core/src/test/org/apache/solr/handler/admin/api/GetMetricsTest.java
b/solr/core/src/test/org/apache/solr/handler/admin/api/GetMetricsTest.java
new file mode 100644
index 00000000000..34e9551c919
--- /dev/null
+++ b/solr/core/src/test/org/apache/solr/handler/admin/api/GetMetricsTest.java
@@ -0,0 +1,276 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.solr.handler.admin.api;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.function.Consumer;
+import org.apache.solr.SolrTestCaseJ4;
+import org.apache.solr.SolrTestCaseJ4.SuppressSSL;
+import org.apache.solr.client.solrj.SolrServerException;
+import org.apache.solr.cloud.MiniSolrCloudCluster;
+import org.apache.solr.response.PrometheusResponseWriter;
+import org.apache.solr.util.stats.MetricUtils;
+import org.eclipse.jetty.client.ContentResponse;
+import org.eclipse.jetty.client.HttpClient;
+import org.eclipse.jetty.http.HttpFields.Mutable;
+import org.eclipse.jetty.http.HttpHeader;
+import org.eclipse.jetty.http.HttpMethod;
+import org.junit.After;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * Unit tests for {@link GetMetrics}.
+ *
+ * <p>See also: TestMetricsRequest, in SolrJ
+ */
+@SuppressSSL
+public class GetMetricsTest extends SolrTestCaseJ4 {
+
+ // No need for the full output
+ private static final int MAX_OUTPUT = 1024;
+
+ private static final int TIMEOUT = 15000;
+
+ private static HttpClient jettyHttpClient;
+ private static String metricsV2Url;
+ private static String baseV2Url;
+ private static MiniSolrCloudCluster cluster;
+
+ @BeforeClass
+ public static void beforeClass() throws Exception {
+ Path tempDir = createTempDir();
+ copyMinConf(tempDir);
+ Files.copy(
+ SolrTestCaseJ4.TEST_PATH().resolve("solr.xml"),
+ tempDir.resolve("solr.xml"),
+ StandardCopyOption.REPLACE_EXISTING);
+
+ MiniSolrCloudCluster.Builder clusterBuilder = new
MiniSolrCloudCluster.Builder(2, tempDir);
+ cluster = clusterBuilder.withSolrXml(tempDir.resolve("solr.xml")).build();
+
+ baseV2Url = cluster.getJettySolrRunner(0).getBaseURLV2().toString();
+
+ metricsV2Url = baseV2Url.concat("/metrics");
+
+ jettyHttpClient = new HttpClient();
+ jettyHttpClient.setConnectTimeout(TIMEOUT);
+ jettyHttpClient.setMaxConnectionsPerDestination(1);
+ jettyHttpClient.setMaxRequestsQueuedPerDestination(1);
+ }
+
+ @AfterClass
+ public static void afterClass() throws Exception {
+ jettyHttpClient.destroy();
+ cluster.shutdown();
+ }
+
+ @Before
+ public void beforeTest() throws Exception {
+ // stop and start Jetty client for each test, otherwise, it seems
responses get mixed!
+ jettyHttpClient.start();
+ }
+
+ @After
+ public void afterTest() throws Exception {
+ jettyHttpClient.stop();
+ }
+
+ @Test
+ public void testGetMetricsDefault()
+ throws IOException,
+ InterruptedException,
+ ExecutionException,
+ TimeoutException,
+ SolrServerException {
+ ContentResponse response = null;
+ try {
+ response =
+ jettyHttpClient
+ .newRequest(metricsV2Url)
+ .timeout(TIMEOUT, TimeUnit.MILLISECONDS)
+ .method(HttpMethod.GET)
+ .send();
+ } catch (InterruptedException | ExecutionException | TimeoutException e) {
+ Assert.fail("Should not throw exception: " + e.getClass() + ". message:
" + e.getMessage());
+ return;
+ }
+ Assert.assertEquals(200, response.getStatus());
+
+ String str = readMaxOut(response.getContent());
+ Assert.assertTrue(str.contains("# HELP"));
+ Assert.assertTrue(str.contains("# TYPE"));
+ }
+
+ @Test
+ public void testGetMetricsPrometheus()
+ throws IOException,
+ InterruptedException,
+ TimeoutException,
+ ExecutionException,
+ SolrServerException {
+ ContentResponse response = null;
+ try {
+ response =
+ jettyHttpClient
+ .newRequest(metricsV2Url)
+ .timeout(TIMEOUT, TimeUnit.MILLISECONDS)
+ .method(HttpMethod.GET)
+ .headers(
+ new Consumer<Mutable>() {
+
+ @Override
+ public void accept(Mutable arg0) {
+ arg0.add(HttpHeader.ACCEPT,
PrometheusResponseWriter.CONTENT_TYPE_PROMETHEUS);
+ }
+ })
+ .send();
+ } catch (InterruptedException | ExecutionException | TimeoutException e) {
+ Assert.fail("Should not throw exception: " + e.getClass() + ". message:
" + e.getMessage());
+ return;
+ }
+ Assert.assertEquals(200, response.getStatus());
+ Assert.assertEquals("text/plain", response.getMediaType());
+ }
+
+ @Test
+ public void testGetMetricsOpenMetrics()
+ throws IOException,
+ InterruptedException,
+ TimeoutException,
+ ExecutionException,
+ SolrServerException {
+ ContentResponse response = null;
+ try {
+ response =
+ jettyHttpClient
+ .newRequest(metricsV2Url)
+ .timeout(TIMEOUT, TimeUnit.MILLISECONDS)
+ .method(HttpMethod.GET)
+ .headers(
+ new Consumer<Mutable>() {
+
+ @Override
+ public void accept(Mutable arg0) {
+ arg0.add(
+ HttpHeader.ACCEPT,
PrometheusResponseWriter.CONTENT_TYPE_OPEN_METRICS);
+ }
+ })
+ .send();
+ } catch (InterruptedException | ExecutionException | TimeoutException e) {
+ Assert.fail("Should not throw exception: " + e.getClass() + ". message:
" + e.getMessage());
+ return;
+ }
+ Assert.assertEquals(200, response.getStatus());
+ Assert.assertEquals("application/openmetrics-text",
response.getMediaType());
+ }
+
+ @Test
+ public void testGetMetricsCategoryParams() throws IOException {
+ String expected = """
+ category="QUERY"
+ """;
+
+ ContentResponse response = null;
+ try {
+ response =
+ jettyHttpClient
+ .newRequest(metricsV2Url)
+ .timeout(TIMEOUT, TimeUnit.MILLISECONDS)
+ .param(MetricUtils.CATEGORY_PARAM, "QUERY")
+ .method(HttpMethod.GET)
+ .headers(
+ new Consumer<Mutable>() {
+
+ @Override
+ public void accept(Mutable arg0) {
+ arg0.add(HttpHeader.ACCEPT,
PrometheusResponseWriter.CONTENT_TYPE_PROMETHEUS);
+ }
+ })
+ .send();
+ } catch (InterruptedException | ExecutionException | TimeoutException e) {
+ Assert.fail("Should not throw exception: " + e.getClass() + ". message:
" + e.getMessage());
+ return;
+ }
+ Assert.assertEquals(200, response.getStatus());
+
+ String str = readMaxOut(response.getContent());
+ Assert.assertTrue(str.contains(expected.trim()));
+ Assert.assertFalse(str.contains("category=\"CORE\""));
+ Assert.assertFalse(str.contains("category=\"UPDATE\""));
+ }
+
+ @Test
+ public void testGetMetricsProxyToNode() throws IOException {
+ URL otherUrl = cluster.getJettySolrRunner(1).getBaseURLV2();
+ String otherNode = otherUrl.getHost() + ":" + otherUrl.getPort() + "_solr";
+
+ ContentResponse response = null;
+ try {
+ response =
+ jettyHttpClient
+ .newRequest(metricsV2Url)
+ .timeout(TIMEOUT, TimeUnit.MILLISECONDS)
+ .param(MetricUtils.NODE_PARAM, otherNode)
+ .method(HttpMethod.GET)
+ .send();
+ } catch (InterruptedException | ExecutionException | TimeoutException e) {
+ Assert.fail("Should not throw exception: " + e.getClass() + ". message:
" + e.getMessage());
+ return;
+ }
+ // HTTP 204: no content to test
+ Assert.assertEquals(204, response.getStatus());
+
+ String unknownNode = "unknown.host:1234_solr";
+ try {
+ response =
+ jettyHttpClient
+ .newRequest(metricsV2Url)
+ .timeout(TIMEOUT, TimeUnit.MILLISECONDS)
+ .param(MetricUtils.NODE_PARAM, unknownNode)
+ .method(HttpMethod.GET)
+ .send();
+ } catch (InterruptedException | ExecutionException | TimeoutException e) {
+ Assert.fail("Should not throw exception: " + e.getClass() + ". message:
" + e.getMessage());
+ return;
+ }
+ // Unknown host is ignored, returns the default response
+ Assert.assertEquals(200, response.getStatus());
+ }
+
+ private static String readMaxOut(byte[] bytes) throws IOException {
+ int max = bytes.length > MAX_OUTPUT ? MAX_OUTPUT : bytes.length;
+ String str = "";
+ try (ByteArrayOutputStream out = new ByteArrayOutputStream(max); ) {
+ out.write(bytes, 0, max);
+ str = out.toString(StandardCharsets.UTF_8);
+ }
+ return str;
+ }
+}
diff --git
a/solr/core/src/test/org/apache/solr/response/TestPrometheusResponseWriter.java
b/solr/core/src/test/org/apache/solr/response/TestPrometheusResponseWriter.java
index d9d2493eb3a..530a2ba6009 100644
---
a/solr/core/src/test/org/apache/solr/response/TestPrometheusResponseWriter.java
+++
b/solr/core/src/test/org/apache/solr/response/TestPrometheusResponseWriter.java
@@ -67,8 +67,7 @@ public class TestPrometheusResponseWriter extends
SolrTestCaseJ4 {
public void testPrometheusStructureOutput() throws Exception {
ModifiableSolrParams params = new ModifiableSolrParams();
params.set("wt", "prometheus");
- var req = new MetricsRequest(params);
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
+ var req = new MetricsRequest(params); // response parser set in
MetricsRequest constructor
try (SolrClient adminClient =
getHttpSolrClient(solrTestRule.getBaseUrl())) {
NamedList<Object> res = adminClient.request(req);
diff --git
a/solr/core/src/test/org/apache/solr/response/TestPrometheusResponseWriterCloud.java
b/solr/core/src/test/org/apache/solr/response/TestPrometheusResponseWriterCloud.java
index ffc254723e1..508bd9d04d5 100644
---
a/solr/core/src/test/org/apache/solr/response/TestPrometheusResponseWriterCloud.java
+++
b/solr/core/src/test/org/apache/solr/response/TestPrometheusResponseWriterCloud.java
@@ -22,7 +22,6 @@ import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.request.CollectionAdminRequest;
import org.apache.solr.client.solrj.request.MetricsRequest;
import org.apache.solr.client.solrj.request.SolrQuery;
-import org.apache.solr.client.solrj.response.InputStreamResponseParser;
import org.apache.solr.cloud.SolrCloudTestCase;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
@@ -68,7 +67,6 @@ public class TestPrometheusResponseWriterCloud extends
SolrCloudTestCase {
solrClient.query("collection1", query);
var req = new MetricsRequest(SolrParams.of("wt", "prometheus"));
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
NamedList<Object> resp = solrClient.request(req);
try (InputStream in = (InputStream) resp.get("stream")) {
@@ -98,7 +96,6 @@ public class TestPrometheusResponseWriterCloud extends
SolrCloudTestCase {
solrClient.query("collection2", query);
var req = new MetricsRequest(SolrParams.of("wt", "prometheus"));
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
NamedList<Object> resp = solrClient.request(req);
diff --git
a/solr/modules/opentelemetry/src/test/org/apache/solr/opentelemetry/TestDistributedTracing.java
b/solr/modules/opentelemetry/src/test/org/apache/solr/opentelemetry/TestDistributedTracing.java
index 97916c007ca..e3eb646896c 100644
---
a/solr/modules/opentelemetry/src/test/org/apache/solr/opentelemetry/TestDistributedTracing.java
+++
b/solr/modules/opentelemetry/src/test/org/apache/solr/opentelemetry/TestDistributedTracing.java
@@ -17,8 +17,6 @@
package org.apache.solr.opentelemetry;
-import static
org.apache.solr.handler.admin.MetricsHandler.PROMETHEUS_METRICS_WT;
-
import io.opentelemetry.api.GlobalOpenTelemetry;
import io.opentelemetry.api.trace.TracerProvider;
import io.opentelemetry.sdk.testing.exporter.InMemorySpanExporter;
@@ -43,6 +41,7 @@ import org.apache.solr.client.solrj.response.V2Response;
import org.apache.solr.cloud.SolrCloudTestCase;
import org.apache.solr.common.SolrDocumentList;
import org.apache.solr.common.util.NamedList;
+import org.apache.solr.util.stats.MetricUtils;
import org.apache.solr.util.tracing.TraceUtils;
import org.junit.AfterClass;
import org.junit.Before;
@@ -136,7 +135,7 @@ public class TestDistributedTracing extends
SolrCloudTestCase {
CloudSolrClient cloudClient = cluster.getSolrClient();
MetricsRequest request = new MetricsRequest();
- request.setResponseParser(new
InputStreamResponseParser(PROMETHEUS_METRICS_WT));
+ request.setResponseParser(new
InputStreamResponseParser(MetricUtils.PROMETHEUS_METRICS_WT));
NamedList<Object> rsp = cloudClient.request(request);
((InputStream) rsp.get("stream")).close();
var finishedSpans = getAndClearSpans();
diff --git
a/solr/modules/opentelemetry/src/test/org/apache/solr/opentelemetry/TestMetricExemplars.java
b/solr/modules/opentelemetry/src/test/org/apache/solr/opentelemetry/TestMetricExemplars.java
index 6eaf0c07e17..0c8ba50078f 100644
---
a/solr/modules/opentelemetry/src/test/org/apache/solr/opentelemetry/TestMetricExemplars.java
+++
b/solr/modules/opentelemetry/src/test/org/apache/solr/opentelemetry/TestMetricExemplars.java
@@ -26,7 +26,6 @@ import java.nio.charset.StandardCharsets;
import org.apache.solr.client.solrj.impl.CloudSolrClient;
import org.apache.solr.client.solrj.request.CollectionAdminRequest;
import org.apache.solr.client.solrj.request.MetricsRequest;
-import org.apache.solr.client.solrj.response.InputStreamResponseParser;
import org.apache.solr.cloud.SolrCloudTestCase;
import org.apache.solr.common.params.ModifiableSolrParams;
import org.apache.solr.common.util.NamedList;
@@ -79,7 +78,6 @@ public class TestMetricExemplars extends SolrCloudTestCase {
var expectedTrace = getRootTraceId(spans);
var req = new MetricsRequest(new ModifiableSolrParams().set("wt",
"openmetrics"));
- req.setResponseParser(new InputStreamResponseParser("openmetrics"));
NamedList<Object> resp = cloudClient.request(req);
try (InputStream in = (InputStream) resp.get("stream")) {
diff --git
a/solr/solr-ref-guide/modules/deployment-guide/pages/metrics-reporting.adoc
b/solr/solr-ref-guide/modules/deployment-guide/pages/metrics-reporting.adoc
index 09590b44e72..7d0e79a2c0a 100644
--- a/solr/solr-ref-guide/modules/deployment-guide/pages/metrics-reporting.adoc
+++ b/solr/solr-ref-guide/modules/deployment-guide/pages/metrics-reporting.adoc
@@ -132,7 +132,13 @@ Metrics collection for index merges can be configured in
the `<metrics>` section
== Metrics API
-The `/admin/metrics` endpoint natively provides access to all metrics in
Prometheus format by default. You can also specify `wt=prometheus` as a
parameter for Prometheus format or `wt=openmetrics` for OpenMetrics format.
More information on the data models is provided in the sections below.
+The `/metrics` endpoint natively provides access to all metrics in Prometheus
format by default. You can also specify `wt=prometheus` as a parameter for
Prometheus format or `wt=openmetrics` for OpenMetrics format. More information
on the data models is provided in the sections below.
+
+[NOTE]
+====
+The V2 `/metrics` endpoint is equivalent to the V1 `/admin/metrics` endpoint.
+Examples on this page show only the V2 endpoint.
+====
=== Prometheus
@@ -148,14 +154,14 @@ The `prometheus-config.yml` file needs to be configured
for a Prometheus server
----
scrape_configs:
- job_name: 'solr'
- metrics_path: "/solr/admin/metrics"
+ metrics_path: "/api/metrics"
static_configs:
- targets: ['localhost:8983', 'localhost:7574']
----
=== OpenMetrics
-OpenMetrics format is available from the `/admin/metrics` endpoint by
providing the `wt=openmetrics` parameter or by passing the Accept header
`application/openmetrics-text;version=1.0.0`. OpenMetrics is an extension of
the Prometheus format that adds additional metadata and exemplars.
+OpenMetrics format is available from the `/metrics` endpoint by providing the
`wt=openmetrics` parameter or by passing the Accept header
`application/openmetrics-text;version=1.0.0`. OpenMetrics is an extension of
the Prometheus format that adds additional metadata and exemplars.
See https://prometheus.io/docs/specs/om/open_metrics_spec/[OpenMetrics Spec]
documentation for more information.
@@ -173,7 +179,7 @@ A basic `prometheus-config.yml` configuration for a
Prometheus server in SolrClo
----
scrape_configs:
- job_name: 'solr'
- metrics_path: "/solr/admin/metrics"
+ metrics_path: "/api/metrics"
static_configs:
- targets: ['localhost:8983', 'localhost:7574']
params:
@@ -256,26 +262,26 @@ The replica type to filter on. Valid values are NRT,
TLOG, or PULL. This attribu
Request only metrics from the `foobar` collection:
[source,text]
-http://localhost:8983/solr/admin/metrics?collection=foobar
+http://localhost:8983/api/metrics?collection=foobar
Request only the metrics with a category label of QUERY or UPDATE:
[source,text]
-http://localhost:8983/solr/admin/metrics?category=QUERY,UPDATE
+http://localhost:8983/api/metrics?category=QUERY,UPDATE
Request only `solr_core_requests_total` metrics from the
`foobar_shard1_replica_n1` core:
[source,text]
-http://localhost:8983/solr/admin/metrics?name=solr_core_requests_total&core=foobar_shard1_replica_n1
+http://localhost:8983/api/metrics?name=solr_core_requests_total&core=foobar_shard1_replica_n1
Request only the core index size `solr_core_index_size_bytes` metrics from
collections labeled `foo` and `bar`:
[source,text]
-http://localhost:8983/solr/admin/metrics?name=solr_core_index_size_bytes&collection=foo,bar
+http://localhost:8983/api/metrics?name=solr_core_index_size_bytes&collection=foo,bar
== OTLP
-For users who do not use or support pulling metrics in Prometheus format with
the `/admin/metrics` API, Solr also supports pushing metrics natively with
https://opentelemetry.io/docs/specs/otlp/[OTLP], which is a vendor-agnostic
protocol for pushing metrics via gRPC or HTTP.
+For users who do not use or support pulling metrics in Prometheus format with
the `/metrics` API, Solr also supports pushing metrics natively with
https://opentelemetry.io/docs/specs/otlp/[OTLP], which is a vendor-agnostic
protocol for pushing metrics via gRPC or HTTP.
OTLP is widely supported by many tools, vendors, and pipelines. See the
OpenTelemetry https://opentelemetry.io/ecosystem/vendors/[vendors list] for
more details on available and compatible options.
@@ -339,7 +345,7 @@ Endpoint to send OTLP metrics to using the HTTP protocol.
=== OpenTelemetry Collector setup
-The https://opentelemetry.io/docs/collector/[OpenTelemetry Collector] is a
powerful process that allows users to decouple their metrics pipeline and route
to their preferred backend. It natively supports metrics being pushed to it via
OTLP and/or scraping the `/admin/metrics` Prometheus endpoint supported by
Solr. You can push both metrics and traces to the collector via OTLP as a
single pipeline.
+The https://opentelemetry.io/docs/collector/[OpenTelemetry Collector] is a
powerful process that allows users to decouple their metrics pipeline and route
to their preferred backend. It natively supports metrics being pushed to it via
OTLP and/or scraping the `/metrics` Prometheus endpoint supported by Solr. You
can push both metrics and traces to the collector via OTLP as a single pipeline.
A simple setup to route metrics from Solr -> OpenTelemetry Collector ->
Prometheus can be configured with the following OpenTelemetry Collector
configuration file:
diff --git
a/solr/solrj-zookeeper/src/java/org/apache/solr/client/solrj/impl/SolrClientNodeStateProvider.java
b/solr/solrj-zookeeper/src/java/org/apache/solr/client/solrj/impl/SolrClientNodeStateProvider.java
index ef6bb5dbd21..f036d294f60 100644
---
a/solr/solrj-zookeeper/src/java/org/apache/solr/client/solrj/impl/SolrClientNodeStateProvider.java
+++
b/solr/solrj-zookeeper/src/java/org/apache/solr/client/solrj/impl/SolrClientNodeStateProvider.java
@@ -35,7 +35,6 @@ import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.cloud.NodeStateProvider;
import org.apache.solr.client.solrj.request.GenericSolrRequest;
import org.apache.solr.client.solrj.request.MetricsRequest;
-import org.apache.solr.client.solrj.response.InputStreamResponseParser;
import org.apache.solr.client.solrj.response.JavaBinResponseParser;
import org.apache.solr.client.solrj.response.SimpleSolrResponse;
import org.apache.solr.common.MapWriter;
@@ -214,7 +213,6 @@ public class SolrClientNodeStateProvider implements
NodeStateProvider, MapWriter
params.add("name", String.join(",", metricNames));
var req = new MetricsRequest(params);
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
String baseUrl =
ctx.zkClientClusterStateProvider.getZkStateReader().getBaseUrlForNodeName(solrNode);
diff --git
a/solr/solrj/src/java/org/apache/solr/client/solrj/request/MetricsRequest.java
b/solr/solrj/src/java/org/apache/solr/client/solrj/request/MetricsRequest.java
index 82c10659586..c849bf16999 100644
---
a/solr/solrj/src/java/org/apache/solr/client/solrj/request/MetricsRequest.java
+++
b/solr/solrj/src/java/org/apache/solr/client/solrj/request/MetricsRequest.java
@@ -17,15 +17,16 @@
package org.apache.solr.client.solrj.request;
import org.apache.solr.client.solrj.SolrRequest;
-import org.apache.solr.client.solrj.SolrResponse;
-import org.apache.solr.client.solrj.response.SolrResponseBase;
+import org.apache.solr.client.solrj.response.InputStreamResponse;
+import org.apache.solr.client.solrj.response.InputStreamResponseParser;
+import org.apache.solr.common.SolrException;
import org.apache.solr.common.params.CommonParams;
import org.apache.solr.common.params.ModifiableSolrParams;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
-/** Request to "/admin/metrics" */
-public class MetricsRequest extends SolrRequest<SolrResponse> {
+/** Request to V1 "/admin/metrics" or V2 "/metrics" */
+public class MetricsRequest extends SolrRequest<InputStreamResponse> {
private static final long serialVersionUID = 1L;
@@ -36,12 +37,37 @@ public class MetricsRequest extends
SolrRequest<SolrResponse> {
this(new ModifiableSolrParams());
}
+ /**
+ * @param path the HTTP path to use for this request. Supports V1
"/admin/metrics" (default) or V2
+ * "/metrics"
+ */
+ public MetricsRequest(String path) {
+ this(path, new ModifiableSolrParams());
+ }
+
/**
* @param params the Solr parameters to use for this request.
*/
public MetricsRequest(SolrParams params) {
- super(METHOD.GET, CommonParams.METRICS_PATH, SolrRequestType.ADMIN);
+ this(CommonParams.METRICS_PATH, params);
+ }
+
+ /**
+ * @param params the Solr parameters to use for this request.
+ */
+ public MetricsRequest(String path, SolrParams params) {
+ super(METHOD.GET, path, SolrRequestType.ADMIN);
+ if (!path.endsWith("/metrics")) {
+ throw new SolrException(
+ SolrException.ErrorCode.BAD_REQUEST, "Request path not supported: "
+ path);
+ }
this.params = params;
+ // Set response parser according to "wt".
+ if ("openmetrics".equals(params.get(CommonParams.WT))) {
+ setResponseParser(new InputStreamResponseParser("openmetrics"));
+ } else {
+ setResponseParser(new InputStreamResponseParser("prometheus"));
+ }
}
@Override
@@ -50,8 +76,17 @@ public class MetricsRequest extends
SolrRequest<SolrResponse> {
}
@Override
- protected SolrResponse createResponse(NamedList<Object> namedList) {
- SolrResponseBase resp = new SolrResponseBase();
- return (SolrResponse) resp;
+ protected InputStreamResponse createResponse(NamedList<Object> namedList) {
+ return new InputStreamResponse();
+ }
+
+ @Override
+ public ApiVersion getApiVersion() {
+ if (CommonParams.METRICS_PATH.equals(getPath())) {
+ // (/solr) /admin/metrics
+ return ApiVersion.V1;
+ }
+ // Ref. org.apache.solr.client.api.endpoint.MetricsApi : /metrics
+ return ApiVersion.V2;
}
}
diff --git a/solr/solrj/src/test-files/solrj/solr/solr-metrics-enabled.xml
b/solr/solrj/src/test-files/solrj/solr/solr-metrics-enabled.xml
new file mode 100644
index 00000000000..a48c29f7e27
--- /dev/null
+++ b/solr/solrj/src/test-files/solrj/solr/solr-metrics-enabled.xml
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!--
+ Licensed to the Apache Software Foundation (ASF) under one or more
+ contributor license agreements. See the NOTICE file distributed with
+ this work for additional information regarding copyright ownership.
+ The ASF licenses this file to You under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with
+ the License. You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+
+<!--
+ All (relative) paths are relative to the installation path
+-->
+<solr>
+
+ <metrics enabled="${metricsEnabled:true}"/>
+
+ <str name="shareSchema">${shareSchema:false}</str>
+ <str name="configSetBaseDir">${configSetBaseDir:configsets}</str>
+ <str name="coreRootDirectory">${coreRootDirectory:.}</str>
+ <str name="allowUrls">${solr.tests.security.allow.urls:}</str>
+
+ <shardHandlerFactory name="shardHandlerFactory"
class="HttpShardHandlerFactory">
+ <str name="urlScheme">${urlScheme:}</str>
+ <int name="socketTimeout">${socketTimeout:90000}</int>
+ <int name="connTimeout">${connTimeout:15000}</int>
+ </shardHandlerFactory>
+
+ <solrcloud>
+ <str name="host">127.0.0.1</str>
+ <int name="hostPort">${hostPort:8983}</int>
+ <int name="zkClientTimeout">${solr.zookeeper.client.timeout:30000}</int>
+ <int name="leaderVoteWait">0</int>
+ <int
name="distribUpdateConnTimeout">${distribUpdateConnTimeout:45000}</int>
+ <int name="distribUpdateSoTimeout">${distribUpdateSoTimeout:340000}</int>
+ <str
name="zkCredentialsProvider">${zkCredentialsProvider:org.apache.solr.common.cloud.DefaultZkCredentialsProvider}</str>
+ <str
name="zkACLProvider">${zkACLProvider:org.apache.solr.common.cloud.DefaultZkACLProvider}</str>
+ <str
name="zkCredentialsInjector">${zkCredentialsInjector:org.apache.solr.common.cloud.DefaultZkCredentialsInjector}</str>
+ </solrcloud>
+
+</solr>
diff --git
a/solr/solrj/src/test/org/apache/solr/client/solrj/request/TestMetricsRequest.java
b/solr/solrj/src/test/org/apache/solr/client/solrj/request/TestMetricsRequest.java
new file mode 100644
index 00000000000..c360ddb85d4
--- /dev/null
+++
b/solr/solrj/src/test/org/apache/solr/client/solrj/request/TestMetricsRequest.java
@@ -0,0 +1,147 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.solr.client.solrj.request;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardCopyOption;
+import java.util.Map;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeoutException;
+import org.apache.commons.io.file.PathUtils;
+import org.apache.solr.client.solrj.SolrClient.SolrClientFunction;
+import org.apache.solr.client.solrj.SolrServerException;
+import org.apache.solr.client.solrj.jetty.HttpJettySolrClient;
+import org.apache.solr.client.solrj.response.InputStreamResponseParser;
+import org.apache.solr.cloud.MiniSolrCloudCluster;
+import org.apache.solr.cloud.SolrCloudTestCase;
+import org.apache.solr.common.params.ModifiableSolrParams;
+import org.apache.solr.common.params.SolrParams;
+import org.apache.solr.util.stats.MetricUtils;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/** Test {@link MetricsRequest}. */
+public class TestMetricsRequest extends SolrCloudTestCase {
+
+ private static final String METRICS_V2_PATH = "/metrics";
+
+ private static HttpJettySolrClient httpClient;
+ private static MiniSolrCloudCluster cluster;
+
+ @BeforeClass
+ public static void beforeClass() throws Exception {
+ Path tempDir = createTempDir();
+ Path testFilesDir = getFile("solrj/solr/collection1").getParent();
+ PathUtils.copyDirectory(testFilesDir, tempDir);
+ Files.copy(
+ testFilesDir.resolve("solr-metrics-enabled.xml"),
+ tempDir.resolve("solr.xml"),
+ StandardCopyOption.REPLACE_EXISTING);
+ MiniSolrCloudCluster.Builder clusterBuilder = new
MiniSolrCloudCluster.Builder(2, tempDir);
+ cluster = clusterBuilder.withSolrXml(tempDir.resolve("solr.xml")).build();
+
+ HttpJettySolrClient.Builder clientBuilder =
+ new
HttpJettySolrClient.Builder(cluster.getJettySolrRunner(0).getBaseUrl().toString());
+ httpClient = clientBuilder.build();
+ }
+
+ @AfterClass
+ public static void afterClass() throws Exception {
+ httpClient.close();
+ cluster.shutdown();
+ }
+
+ @Test
+ public void testGetMetricsV2()
+ throws IOException,
+ InterruptedException,
+ ExecutionException,
+ TimeoutException,
+ SolrServerException {
+ MetricsRequest solrRequest = new MetricsRequest(METRICS_V2_PATH);
+ String str =
+ httpClient.requestWithBaseUrl(
+ cluster.getJettySolrRunner(0).getBaseURLV2().toString(),
+ new SolrClientFunction<HttpJettySolrClient, String>() {
+
+ @Override
+ public String apply(HttpJettySolrClient c) throws IOException,
SolrServerException {
+ return
InputStreamResponseParser.consumeResponseToString(c.request(solrRequest));
+ }
+ });
+
+ Assert.assertTrue(str.contains("# HELP"));
+ Assert.assertTrue(str.contains("# TYPE"));
+ }
+
+ @Test
+ public void testGetMetricsV2ParamName()
+ throws IOException,
+ InterruptedException,
+ ExecutionException,
+ TimeoutException,
+ SolrServerException {
+ String requestedName = "solr_disk_space_megabytes";
+ String notRequested = "solr_client_request_duration_milliseconds_bucket";
+ SolrParams params =
+ new ModifiableSolrParams(
+ Map.of(MetricUtils.METRIC_NAME_PARAM, new String[]
{requestedName}));
+ MetricsRequest solrRequest = new MetricsRequest(METRICS_V2_PATH, params);
+ String str =
+ httpClient.requestWithBaseUrl(
+ cluster.getJettySolrRunner(0).getBaseURLV2().toString(),
+ new SolrClientFunction<HttpJettySolrClient, String>() {
+
+ @Override
+ public String apply(HttpJettySolrClient c) throws IOException,
SolrServerException {
+ return
InputStreamResponseParser.consumeResponseToString(c.request(solrRequest));
+ }
+ });
+
+ Assert.assertTrue(str.contains("# HELP"));
+ Assert.assertTrue(str.contains("# TYPE"));
+ Assert.assertTrue(str.contains(requestedName));
+ Assert.assertFalse(str.contains(notRequested));
+ }
+
+ @Test
+ public void testGetMetricsV1()
+ throws IOException,
+ InterruptedException,
+ ExecutionException,
+ TimeoutException,
+ SolrServerException {
+ MetricsRequest solrRequest = new MetricsRequest();
+ String str =
+ httpClient.requestWithBaseUrl(
+ cluster.getJettySolrRunner(0).getBaseUrl().toString(),
+ new SolrClientFunction<HttpJettySolrClient, String>() {
+
+ @Override
+ public String apply(HttpJettySolrClient c) throws IOException,
SolrServerException {
+ return
InputStreamResponseParser.consumeResponseToString(c.request(solrRequest));
+ }
+ });
+
+ Assert.assertTrue(str.contains("# HELP"));
+ Assert.assertTrue(str.contains("# TYPE"));
+ }
+}
diff --git
a/solr/test-framework/src/java/org/apache/solr/util/SolrJMetricTestUtils.java
b/solr/test-framework/src/java/org/apache/solr/util/SolrJMetricTestUtils.java
index 1ec456202c6..7669c3755cf 100644
---
a/solr/test-framework/src/java/org/apache/solr/util/SolrJMetricTestUtils.java
+++
b/solr/test-framework/src/java/org/apache/solr/util/SolrJMetricTestUtils.java
@@ -24,7 +24,6 @@ import org.apache.solr.client.solrj.SolrClient;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.jetty.HttpJettySolrClient;
import org.apache.solr.client.solrj.request.MetricsRequest;
-import org.apache.solr.client.solrj.response.InputStreamResponseParser;
import org.apache.solr.common.params.SolrParams;
import org.apache.solr.common.util.NamedList;
@@ -33,7 +32,6 @@ public final class SolrJMetricTestUtils {
public static double getPrometheusMetricValue(SolrClient solrClient, String
metricName)
throws SolrServerException, IOException {
var req = new MetricsRequest(SolrParams.of("wt", "prometheus"));
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
NamedList<Object> resp = solrClient.request(req);
try (InputStream in = (InputStream) resp.get("stream")) {
@@ -52,7 +50,6 @@ public final class SolrJMetricTestUtils {
try (var client = new HttpJettySolrClient.Builder(baseUrl).build()) {
var req = new MetricsRequest(SolrParams.of("wt", "prometheus"));
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
NamedList<Object> resp = client.request(req);
try (InputStream in = (InputStream) resp.get("stream")) {
@@ -80,7 +77,6 @@ public final class SolrJMetricTestUtils {
try (var client = new HttpJettySolrClient.Builder(baseUrl).build()) {
var req = new MetricsRequest(SolrParams.of("wt", "prometheus"));
- req.setResponseParser(new InputStreamResponseParser("prometheus"));
NamedList<Object> resp = client.request(req);
try (InputStream in = (InputStream) resp.get("stream")) {
