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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2022/06/21 12:47:48 UTC
[GitHub] [pulsar] nicoloboschi commented on a diff in pull request #15140: [monitor][txn] Add metrics for transaction
nicoloboschi commented on code in PR #15140:
URL: https://github.com/apache/pulsar/pull/15140#discussion_r902569967
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/transaction/buffer/TransactionBufferClientStats.java:
##########
@@ -0,0 +1,70 @@
+/**
+ * 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.pulsar.broker.transaction.buffer;
+
+import org.apache.pulsar.broker.transaction.buffer.impl.TransactionBufferClientStatsImpl;
+import org.apache.pulsar.client.impl.transaction.TransactionBufferHandler;
+
+public interface TransactionBufferClientStats {
+
+ void recordAbortFailed(String topic);
+
+ void recordCommitFailed(String topic);
+
+ void recordAbortLatency(String topic, long cost);
+
+ void recordCommitLatency(String topic, long cost);
+
+ void close();
Review Comment:
we can use `AutoCloseable`
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/transaction/buffer/impl/TopicTransactionBuffer.java:
##########
@@ -245,6 +248,20 @@ public CompletableFuture<Void> checkIfTBRecoverCompletely(boolean isTxnEnabled)
}
}
+ @Override
+ public long getOngoingTxnCount() {
Review Comment:
IIUC `ongoingTxns` and `aborts` are real gauges because they can be increased or decreased.
`txnCommittedCounter` is only incremented and so it's a counter.
Is it correct ?
If so, I believe we have to introduce a txnAbortedCounter
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/transaction/pendingack/PendingAckHandleStats.java:
##########
@@ -0,0 +1,34 @@
+/**
+ * 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.pulsar.broker.transaction.pendingack;
+
+import org.apache.pulsar.broker.transaction.pendingack.impl.PendingAckHandleStatsImpl;
+
+public interface PendingAckHandleStats {
+
+ void recordCommitTxn(boolean success);
+
+ void recordAbortTxn(boolean success);
+
+ void close();
Review Comment:
Autocloseable?
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/transaction/buffer/impl/TransactionBufferClientStatsImpl.java:
##########
@@ -0,0 +1,130 @@
+/**
+ * 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.pulsar.broker.transaction.buffer.impl;
+
+import io.prometheus.client.CollectorRegistry;
+import io.prometheus.client.Counter;
+import io.prometheus.client.Gauge;
+import io.prometheus.client.Summary;
+import java.util.concurrent.atomic.AtomicBoolean;
+import org.apache.pulsar.broker.transaction.buffer.TransactionBufferClientStats;
+import org.apache.pulsar.client.impl.transaction.TransactionBufferHandler;
+import org.apache.pulsar.common.naming.TopicName;
+
+public final class TransactionBufferClientStatsImpl implements TransactionBufferClientStats {
+ private static final double[] QUANTILES = {0.50, 0.75, 0.95, 0.99, 0.999, 0.9999, 1};
+ private final AtomicBoolean closed = new AtomicBoolean(false);
+
+ private final Counter abortFailed;
+ private final Counter commitFailed;
+ private final Summary abortLatency;
+ private final Summary commitLatency;
+ private final Gauge pendingRequests;
+
+ private final boolean exposeTopicLevelMetrics;
+
+ private static TransactionBufferClientStats instance;
+
+ private TransactionBufferClientStatsImpl(boolean exposeTopicLevelMetrics,
+ TransactionBufferHandler handler) {
+ this.exposeTopicLevelMetrics = exposeTopicLevelMetrics;
+ String[] labelNames = exposeTopicLevelMetrics
+ ? new String[]{"namespace", "topic"} : new String[]{"namespace"};
+
+ this.abortFailed = Counter.build("pulsar_txn_tb_client_abort_failed", "-")
+ .labelNames(labelNames)
+ .register();
+ this.commitFailed = Counter.build("pulsar_txn_tb_client_commit_failed", "-")
+ .labelNames(labelNames)
+ .register();
+ this.abortLatency =
+ this.buildSummary("pulsar_txn_tb_client_abort_latency", "-", labelNames);
+ this.commitLatency =
+ this.buildSummary("pulsar_txn_tb_client_commit_latency", "-", labelNames);
+
+ this.pendingRequests = Gauge.build("pulsar_txn_tb_client_pending_requests", "-")
+ .register()
+ .setChild(new Gauge.Child() {
+ @Override
+ public double get() {
+ return null == handler ? 0 : handler.getPendingRequestsCount();
+ }
+ });
+ }
+
+ private Summary buildSummary(String name, String help, String[] labelNames) {
+ Summary.Builder builder = Summary.build(name, help)
+ .labelNames(labelNames);
+ for (double quantile : QUANTILES) {
+ builder.quantile(quantile, 0.01D);
+ }
+ return builder.register();
+ }
+
+ public static synchronized TransactionBufferClientStats getInstance(boolean exposeTopicLevelMetrics,
+ TransactionBufferHandler handler) {
+ if (null == instance) {
+ instance = new TransactionBufferClientStatsImpl(exposeTopicLevelMetrics, handler);
+ }
+
+ return instance;
+ }
+
+ @Override
+ public void recordAbortFailed(String topic) {
+ this.abortFailed.labels(labelValues(topic)).inc();
+ }
+
+ @Override
+ public void recordCommitFailed(String topic) {
+ this.commitFailed.labels(labelValues(topic)).inc();
+ }
+
+ @Override
+ public void recordAbortLatency(String topic, long cost) {
+ this.abortLatency.labels(labelValues(topic)).observe(cost);
+ }
+
+ @Override
+ public void recordCommitLatency(String topic, long cost) {
+ this.commitLatency.labels(labelValues(topic)).observe(cost);
+ }
+
+ private String[] labelValues(String topic) {
+ try {
+ TopicName topicName = TopicName.get(topic);
+ return exposeTopicLevelMetrics
+ ? new String[]{topicName.getNamespace(), topic} : new String[]{topicName.getNamespace()};
+ } catch (Throwable t) {
Review Comment:
log the exception ?
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/transaction/buffer/impl/TransactionBufferClientStatsImpl.java:
##########
@@ -0,0 +1,130 @@
+/**
+ * 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.pulsar.broker.transaction.buffer.impl;
+
+import io.prometheus.client.CollectorRegistry;
+import io.prometheus.client.Counter;
+import io.prometheus.client.Gauge;
+import io.prometheus.client.Summary;
+import java.util.concurrent.atomic.AtomicBoolean;
+import org.apache.pulsar.broker.transaction.buffer.TransactionBufferClientStats;
+import org.apache.pulsar.client.impl.transaction.TransactionBufferHandler;
+import org.apache.pulsar.common.naming.TopicName;
+
+public final class TransactionBufferClientStatsImpl implements TransactionBufferClientStats {
+ private static final double[] QUANTILES = {0.50, 0.75, 0.95, 0.99, 0.999, 0.9999, 1};
+ private final AtomicBoolean closed = new AtomicBoolean(false);
+
+ private final Counter abortFailed;
+ private final Counter commitFailed;
+ private final Summary abortLatency;
+ private final Summary commitLatency;
+ private final Gauge pendingRequests;
+
+ private final boolean exposeTopicLevelMetrics;
+
+ private static TransactionBufferClientStats instance;
+
+ private TransactionBufferClientStatsImpl(boolean exposeTopicLevelMetrics,
+ TransactionBufferHandler handler) {
+ this.exposeTopicLevelMetrics = exposeTopicLevelMetrics;
+ String[] labelNames = exposeTopicLevelMetrics
+ ? new String[]{"namespace", "topic"} : new String[]{"namespace"};
+
+ this.abortFailed = Counter.build("pulsar_txn_tb_client_abort_failed", "-")
+ .labelNames(labelNames)
+ .register();
+ this.commitFailed = Counter.build("pulsar_txn_tb_client_commit_failed", "-")
+ .labelNames(labelNames)
+ .register();
+ this.abortLatency =
+ this.buildSummary("pulsar_txn_tb_client_abort_latency", "-", labelNames);
+ this.commitLatency =
+ this.buildSummary("pulsar_txn_tb_client_commit_latency", "-", labelNames);
+
+ this.pendingRequests = Gauge.build("pulsar_txn_tb_client_pending_requests", "-")
+ .register()
+ .setChild(new Gauge.Child() {
+ @Override
+ public double get() {
+ return null == handler ? 0 : handler.getPendingRequestsCount();
+ }
+ });
+ }
+
+ private Summary buildSummary(String name, String help, String[] labelNames) {
+ Summary.Builder builder = Summary.build(name, help)
+ .labelNames(labelNames);
+ for (double quantile : QUANTILES) {
+ builder.quantile(quantile, 0.01D);
+ }
+ return builder.register();
+ }
+
+ public static synchronized TransactionBufferClientStats getInstance(boolean exposeTopicLevelMetrics,
+ TransactionBufferHandler handler) {
+ if (null == instance) {
+ instance = new TransactionBufferClientStatsImpl(exposeTopicLevelMetrics, handler);
+ }
+
+ return instance;
+ }
+
+ @Override
+ public void recordAbortFailed(String topic) {
+ this.abortFailed.labels(labelValues(topic)).inc();
+ }
+
+ @Override
+ public void recordCommitFailed(String topic) {
+ this.commitFailed.labels(labelValues(topic)).inc();
+ }
+
+ @Override
+ public void recordAbortLatency(String topic, long cost) {
+ this.abortLatency.labels(labelValues(topic)).observe(cost);
+ }
+
+ @Override
+ public void recordCommitLatency(String topic, long cost) {
+ this.commitLatency.labels(labelValues(topic)).observe(cost);
+ }
+
+ private String[] labelValues(String topic) {
+ try {
+ TopicName topicName = TopicName.get(topic);
+ return exposeTopicLevelMetrics
+ ? new String[]{topicName.getNamespace(), topic} : new String[]{topicName.getNamespace()};
+ } catch (Throwable t) {
+ return exposeTopicLevelMetrics ? new String[]{"unknown", "unknown"} : new String[]{"unknown"};
+ }
+ }
+
+ @Override
+ public void close() {
+ if (instance == this && this.closed.compareAndSet(false, true)) {
Review Comment:
why `instance == this` is needed ? if I call close() on this instance I expect to call this object even if it's not the singleton
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