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[ISSUE #10490] Eliminate per-RPC allocation from Logback status, TopicMessageType toLowerCase, and RemotingHelper eager evaluation #10491

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[ISSUE #10490] Eliminate per-RPC allocation from Logback status, TopicMessageType toLowerCase, and RemotingHelper eager evaluation #10491

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c0a2641
[ISSUE #10441] Reduce per-RPC allocation in metrics by caching static…
Jun 12, 2026
4294fae
[ISSUE #10490] Eliminate per-RPC allocation from Logback status, Topi…
Jun 12, 2026
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19 changes: 19 additions & 0 deletions broker/src/main/java/org/apache/rocketmq/broker/metrics/BrokerMetricsConstant.java
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Expand Up @@ -16,6 +16,8 @@
*/
package org.apache.rocketmq.broker.metrics;

import io.opentelemetry.api.common.AttributeKey;

public class BrokerMetricsConstant {
public static final String OPEN_TELEMETRY_METER_NAME = "broker-meter";

Expand Down Expand Up @@ -64,4 +66,21 @@ public class BrokerMetricsConstant {
public static final String LABEL_LANGUAGE = "language";
public static final String LABEL_VERSION = "version";
public static final String LABEL_CONSUME_MODE = "consume_mode";

// Pre-built typed AttributeKey singletons. Use these in AttributesBuilder.put()
// on hot paths to avoid allocating a fresh InternalAttributeKeyImpl per call.
Comment on lines +70 to +71

@wang-jiahua wang-jiahua Jun 15, 2026

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Same as above — inherited from base PR #10443. Will update the comment to avoid referencing OpenTelemetry internal implementation details.

public static final AttributeKey<String> LABEL_CLUSTER_NAME_KEY = AttributeKey.stringKey(LABEL_CLUSTER_NAME);
public static final AttributeKey<String> LABEL_NODE_TYPE_KEY = AttributeKey.stringKey(LABEL_NODE_TYPE);
public static final AttributeKey<String> LABEL_NODE_ID_KEY = AttributeKey.stringKey(LABEL_NODE_ID);
public static final AttributeKey<String> LABEL_AGGREGATION_KEY = AttributeKey.stringKey(LABEL_AGGREGATION);
public static final AttributeKey<String> LABEL_PROCESSOR_KEY = AttributeKey.stringKey(LABEL_PROCESSOR);
public static final AttributeKey<String> LABEL_TOPIC_KEY = AttributeKey.stringKey(LABEL_TOPIC);
public static final AttributeKey<String> LABEL_INVOCATION_STATUS_KEY = AttributeKey.stringKey(LABEL_INVOCATION_STATUS);
public static final AttributeKey<Boolean> LABEL_IS_RETRY_KEY = AttributeKey.booleanKey(LABEL_IS_RETRY);
public static final AttributeKey<Boolean> LABEL_IS_SYSTEM_KEY = AttributeKey.booleanKey(LABEL_IS_SYSTEM);
public static final AttributeKey<String> LABEL_CONSUMER_GROUP_KEY = AttributeKey.stringKey(LABEL_CONSUMER_GROUP);
public static final AttributeKey<String> LABEL_MESSAGE_TYPE_KEY = AttributeKey.stringKey(LABEL_MESSAGE_TYPE);
public static final AttributeKey<String> LABEL_LANGUAGE_KEY = AttributeKey.stringKey(LABEL_LANGUAGE);
public static final AttributeKey<String> LABEL_VERSION_KEY = AttributeKey.stringKey(LABEL_VERSION);
public static final AttributeKey<String> LABEL_CONSUME_MODE_KEY = AttributeKey.stringKey(LABEL_CONSUME_MODE);
}
68 changes: 34 additions & 34 deletions broker/src/main/java/org/apache/rocketmq/broker/metrics/BrokerMetricsManager.java
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Expand Up @@ -101,19 +101,19 @@
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.HISTOGRAM_CONSUMER_GROUP_CREATE_EXECUTE_TIME;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_AGGREGATION;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_CLUSTER_NAME;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_CONSUMER_GROUP;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_CONSUME_MODE;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_IS_RETRY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_IS_SYSTEM;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_LANGUAGE;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_CONSUMER_GROUP_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_CONSUME_MODE_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_IS_RETRY_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_IS_SYSTEM_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_LANGUAGE_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_NODE_ID;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_NODE_TYPE;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_PROCESSOR;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_TOPIC;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_VERSION;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_PROCESSOR_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_TOPIC_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_VERSION_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.NODE_TYPE_BROKER;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.OPEN_TELEMETRY_METER_NAME;
import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.LABEL_PROTOCOL_TYPE;
import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.LABEL_PROTOCOL_TYPE_KEY;
import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.PROTOCOL_TYPE_REMOTING;

public class BrokerMetricsManager {
Expand Down Expand Up @@ -197,10 +197,10 @@ public AttributesBuilder newAttributesBuilder() {

private Attributes buildLagAttributes(ConsumerLagCalculator.BaseCalculateResult result) {
AttributesBuilder attributesBuilder = newAttributesBuilder();
attributesBuilder.put(LABEL_CONSUMER_GROUP, result.group);
attributesBuilder.put(LABEL_TOPIC, result.topic);
attributesBuilder.put(LABEL_IS_RETRY, result.isRetry);
attributesBuilder.put(LABEL_IS_SYSTEM, isSystem(result.topic, result.group));
attributesBuilder.put(LABEL_CONSUMER_GROUP_KEY, result.group);
attributesBuilder.put(LABEL_TOPIC_KEY, result.topic);
attributesBuilder.put(LABEL_IS_RETRY_KEY, result.isRetry);
attributesBuilder.put(LABEL_IS_SYSTEM_KEY, isSystem(result.topic, result.group));
return attributesBuilder.build();
}

Expand Down Expand Up @@ -571,18 +571,18 @@ private void initStatsMetrics() {
.setDescription("Request processor watermark")
.ofLongs()
.buildWithCallback(measurement -> {
measurement.record(brokerController.getSendThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "send").build());
measurement.record(brokerController.getAsyncPutThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "async_put").build());
measurement.record(brokerController.getPullThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "pull").build());
measurement.record(brokerController.getAckThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "ack").build());
measurement.record(brokerController.getQueryThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "query_message").build());
measurement.record(brokerController.getClientManagerThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "client_manager").build());
measurement.record(brokerController.getHeartbeatThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "heartbeat").build());
measurement.record(brokerController.getLitePullThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "lite_pull").build());
measurement.record(brokerController.getEndTransactionThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "transaction").build());
measurement.record(brokerController.getConsumerManagerThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "consumer_manager").build());
measurement.record(brokerController.getAdminBrokerThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "admin").build());
measurement.record(brokerController.getReplyThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR, "reply").build());
measurement.record(brokerController.getSendThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "send").build());
measurement.record(brokerController.getAsyncPutThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "async_put").build());
measurement.record(brokerController.getPullThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "pull").build());
measurement.record(brokerController.getAckThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "ack").build());
measurement.record(brokerController.getQueryThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "query_message").build());
measurement.record(brokerController.getClientManagerThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "client_manager").build());
measurement.record(brokerController.getHeartbeatThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "heartbeat").build());
measurement.record(brokerController.getLitePullThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "lite_pull").build());
measurement.record(brokerController.getEndTransactionThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "transaction").build());
measurement.record(brokerController.getConsumerManagerThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "consumer_manager").build());
measurement.record(brokerController.getAdminBrokerThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "admin").build());
measurement.record(brokerController.getReplyThreadPoolQueue().size(), newAttributesBuilder().put(LABEL_PROCESSOR_KEY, "reply").build());
});

brokerPermission = brokerMeter.gaugeBuilder(GAUGE_BROKER_PERMISSION)
Expand Down Expand Up @@ -662,9 +662,9 @@ private void initConnectionMetrics() {
});
metricsMap.forEach((attr, count) -> {
Attributes attributes = newAttributesBuilder()
.put(LABEL_LANGUAGE, attr.language.name().toLowerCase())
.put(LABEL_VERSION, MQVersion.getVersionDesc(attr.version).toLowerCase())
.put(LABEL_PROTOCOL_TYPE, PROTOCOL_TYPE_REMOTING)
.put(LABEL_LANGUAGE_KEY, attr.language.name().toLowerCase())
.put(LABEL_VERSION_KEY, MQVersion.getVersionDesc(attr.version).toLowerCase())
.put(LABEL_PROTOCOL_TYPE_KEY, PROTOCOL_TYPE_REMOTING)
.build();
measurement.record(count, attributes);
});
Expand All @@ -688,12 +688,12 @@ private void initConnectionMetrics() {
});
metricsMap.forEach((attr, count) -> {
Attributes attributes = newAttributesBuilder()
.put(LABEL_CONSUMER_GROUP, attr.group)
.put(LABEL_LANGUAGE, attr.language.name().toLowerCase())
.put(LABEL_VERSION, MQVersion.getVersionDesc(attr.version).toLowerCase())
.put(LABEL_CONSUME_MODE, attr.consumeMode.getTypeCN().toLowerCase())
.put(LABEL_PROTOCOL_TYPE, PROTOCOL_TYPE_REMOTING)
.put(LABEL_IS_SYSTEM, isSystemGroup(attr.group))
.put(LABEL_CONSUMER_GROUP_KEY, attr.group)
.put(LABEL_LANGUAGE_KEY, attr.language.name().toLowerCase())
.put(LABEL_VERSION_KEY, MQVersion.getVersionDesc(attr.version).toLowerCase())
.put(LABEL_CONSUME_MODE_KEY, attr.consumeMode.getTypeCN().toLowerCase())
.put(LABEL_PROTOCOL_TYPE_KEY, PROTOCOL_TYPE_REMOTING)
.put(LABEL_IS_SYSTEM_KEY, isSystemGroup(attr.group))
.build();
measurement.record(count, attributes);
});
Expand Down
16 changes: 8 additions & 8 deletions broker/src/main/java/org/apache/rocketmq/broker/metrics/PopMetricsManager.java
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Expand Up @@ -45,8 +45,8 @@
import org.apache.rocketmq.logging.org.slf4j.Logger;
import org.apache.rocketmq.logging.org.slf4j.LoggerFactory;

import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_CONSUMER_GROUP;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_TOPIC;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_CONSUMER_GROUP_KEY;
import static org.apache.rocketmq.broker.metrics.BrokerMetricsConstant.LABEL_TOPIC_KEY;
import static org.apache.rocketmq.broker.metrics.PopMetricsConstant.COUNTER_POP_REVIVE_IN_MESSAGE_TOTAL;
import static org.apache.rocketmq.broker.metrics.PopMetricsConstant.COUNTER_POP_REVIVE_OUT_MESSAGE_TOTAL;
import static org.apache.rocketmq.broker.metrics.PopMetricsConstant.COUNTER_POP_REVIVE_RETRY_MESSAGES_TOTAL;
Expand Down Expand Up @@ -181,8 +181,8 @@ public void incPopReviveCkPutCount(PopCheckPoint checkPoint, PutMessageStatus st
public void incPopRevivePutCount(String group, String topic, PopReviveMessageType messageType,
PutMessageStatus status, int num) {
Attributes attributes = this.newAttributesBuilder()
.put(LABEL_CONSUMER_GROUP, group)
.put(LABEL_TOPIC, topic)
.put(LABEL_CONSUMER_GROUP_KEY, group)
.put(LABEL_TOPIC_KEY, topic)
.put(LABEL_REVIVE_MESSAGE_TYPE, messageType.name())
.put(LABEL_PUT_STATUS, status.name())
.build();
Expand All @@ -201,8 +201,8 @@ public void incPopReviveGetCount(String group, String topic, PopReviveMessageTyp
int num) {
AttributesBuilder builder = this.newAttributesBuilder();
Attributes attributes = builder
.put(LABEL_CONSUMER_GROUP, group)
.put(LABEL_TOPIC, topic)
.put(LABEL_CONSUMER_GROUP_KEY, group)
.put(LABEL_TOPIC_KEY, topic)
.put(LABEL_QUEUE_ID, queueId)
.put(LABEL_REVIVE_MESSAGE_TYPE, messageType.name())
.build();
Expand All @@ -212,8 +212,8 @@ public void incPopReviveGetCount(String group, String topic, PopReviveMessageTyp
public void incPopReviveRetryMessageCount(PopCheckPoint checkPoint, PutMessageStatus status) {
AttributesBuilder builder = this.newAttributesBuilder();
Attributes attributes = builder
.put(LABEL_CONSUMER_GROUP, checkPoint.getCId())
.put(LABEL_TOPIC, checkPoint.getTopic())
.put(LABEL_CONSUMER_GROUP_KEY, checkPoint.getCId())
.put(LABEL_TOPIC_KEY, checkPoint.getTopic())
.put(LABEL_PUT_STATUS, status.name())
.build();
this.popReviveRetryMessageTotal.add(1, attributes);
Expand Down
2 changes: 2 additions & 0 deletions broker/src/main/resources/rmq.broker.logback.xml
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Expand Up @@ -18,6 +18,8 @@

<configuration scan="true" scanPeriod="30 seconds">

<statusListener class="ch.qos.logback.core.status.NopStatusListener"/>

@wang-jiahua wang-jiahua Jun 15, 2026

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The NopStatusListener is a standard production optimization. Logback internal status events (InfoStatus, BodyEvent) accumulate in BasicStatusManager during XML loading but are almost never queried at runtime. This is a deliberate tradeoff — if debugging is needed, the listener can be removed or conditionally enabled via -Dlogback.statusListenerClass system property.


<appender name="DefaultSiftingAppender_inner" class="ch.qos.logback.classic.sift.SiftingAppender">
<discriminator>
<key>brokerContainerLogDir</key>
Expand Down
4 changes: 3 additions & 1 deletion common/src/main/java/org/apache/rocketmq/common/attribute/TopicMessageType.java
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Expand Up @@ -33,9 +33,11 @@ public enum TopicMessageType {
MIXED("MIXED");

private final String value;
private final String metricsValue;

TopicMessageType(String value) {
this.value = value;
this.metricsValue = value.toLowerCase(java.util.Locale.ROOT);
}

public static Set<String> topicMessageTypeSet() {
Expand Down Expand Up @@ -67,6 +69,6 @@ public static TopicMessageType parseFromMessageProperty(Map<String, String> mess
}

public String getMetricsValue() {
return value.toLowerCase();
return metricsValue;
}
}
6 changes: 4 additions & 2 deletions remoting/src/main/java/org/apache/rocketmq/remoting/common/RemotingHelper.java
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Expand Up @@ -369,10 +369,12 @@ public static CompletableFuture<Void> convertChannelFutureToCompletableFuture(Ch
}

public static String getRequestCodeDesc(int code) {
return REQUEST_CODE_MAP.getOrDefault(code, String.valueOf(code));
String desc = REQUEST_CODE_MAP.get(code);
return desc != null ? desc : String.valueOf(code);
}

public static String getResponseCodeDesc(int code) {
return RESPONSE_CODE_MAP.getOrDefault(code, String.valueOf(code));
String desc = RESPONSE_CODE_MAP.get(code);
return desc != null ? desc : String.valueOf(code);
}
}
10 changes: 10 additions & 0 deletions remoting/src/main/java/org/apache/rocketmq/remoting/metrics/RemotingMetricsConstant.java
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Expand Up @@ -16,6 +16,8 @@
*/
package org.apache.rocketmq.remoting.metrics;

import io.opentelemetry.api.common.AttributeKey;

public class RemotingMetricsConstant {
public static final String HISTOGRAM_RPC_LATENCY = "rocketmq_rpc_latency";
public static final String LABEL_PROTOCOL_TYPE = "protocol_type";
Expand All @@ -24,6 +26,14 @@ public class RemotingMetricsConstant {
public static final String LABEL_IS_LONG_POLLING = "is_long_polling";
public static final String LABEL_RESULT = "result";

// Pre-built typed AttributeKey singletons. Use these in AttributesBuilder.put()
// on hot paths to avoid allocating a fresh InternalAttributeKeyImpl per call.
Comment on lines +29 to +30

@wang-jiahua wang-jiahua Jun 15, 2026

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This comment is inherited from the base PR #10443. The reference to InternalAttributeKeyImpl is just documenting the motivation for pre-building these keys. Will update the comment to reference the OTel API concept rather than the internal class name.

public static final AttributeKey<String> LABEL_PROTOCOL_TYPE_KEY = AttributeKey.stringKey(LABEL_PROTOCOL_TYPE);
public static final AttributeKey<String> LABEL_REQUEST_CODE_KEY = AttributeKey.stringKey(LABEL_REQUEST_CODE);
public static final AttributeKey<String> LABEL_RESPONSE_CODE_KEY = AttributeKey.stringKey(LABEL_RESPONSE_CODE);
public static final AttributeKey<Boolean> LABEL_IS_LONG_POLLING_KEY = AttributeKey.booleanKey(LABEL_IS_LONG_POLLING);
public static final AttributeKey<String> LABEL_RESULT_KEY = AttributeKey.stringKey(LABEL_RESULT);

public static final String PROTOCOL_TYPE_REMOTING = "remoting";

public static final String RESULT_ONEWAY = "oneway";
Expand Down
5 changes: 3 additions & 2 deletions remoting/src/main/java/org/apache/rocketmq/remoting/metrics/RemotingMetricsManager.java
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Expand Up @@ -35,8 +35,9 @@
import org.apache.rocketmq.common.metrics.NopLongHistogram;

import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.HISTOGRAM_RPC_LATENCY;
import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.LABEL_PROTOCOL_TYPE;
import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.LABEL_PROTOCOL_TYPE_KEY;
import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.PROTOCOL_TYPE_REMOTING;

import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.RESULT_CANCELED;
import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.RESULT_SUCCESS;
import static org.apache.rocketmq.remoting.metrics.RemotingMetricsConstant.RESULT_WRITE_CHANNEL_FAILED;
Expand All @@ -53,7 +54,7 @@ public AttributesBuilder newAttributesBuilder() {
return Attributes.builder();
}
return this.attributesBuilderSupplier.get()
.put(LABEL_PROTOCOL_TYPE, PROTOCOL_TYPE_REMOTING);
.put(LABEL_PROTOCOL_TYPE_KEY, PROTOCOL_TYPE_REMOTING);
}

public void initMetrics(Meter meter, Supplier<AttributesBuilder> attributesBuilderSupplier) {
Expand Down