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feat: add cleanup service metrics (#8779)
* feat: add metrics for transient query cleanup service * feat: add cleanup service metrics * more metrics * dot * nit * nit
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155 changes: 155 additions & 0 deletions
155
ksqldb-engine/src/main/java/io/confluent/ksql/internal/LeakedResourcesMetrics.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| /* | ||
| * Copyright 2021 Confluent Inc. | ||
| * | ||
| * Licensed under the Confluent Community License (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.confluent.io/confluent-community-license | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT | ||
| * WARRANTIES OF ANY KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations under the License. | ||
| */ | ||
|
|
||
| package io.confluent.ksql.internal; | ||
|
|
||
| import com.google.common.collect.ImmutableList; | ||
| import io.confluent.ksql.engine.KsqlEngine; | ||
| import java.time.Instant; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
| import java.util.function.Supplier; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
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| public class LeakedResourcesMetrics implements Runnable { | ||
| private static final Logger LOGGER | ||
| = LoggerFactory.getLogger(LeakedResourcesMetrics.class); | ||
|
|
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| private final KsqlEngine engine; | ||
| private final MetricsReporter reporter; | ||
| private final Map<String, String> customTags; | ||
| private final Supplier<Instant> time; | ||
|
|
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| public LeakedResourcesMetrics( | ||
| final KsqlEngine ksqlEngine, | ||
| final JmxDataPointsReporter jmxDataPointsReporter, | ||
| final Map<String, String> customTags | ||
| ) { | ||
| this(Instant::now, ksqlEngine, jmxDataPointsReporter, customTags); | ||
| } | ||
|
|
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| LeakedResourcesMetrics( | ||
| final Supplier<Instant> time, | ||
| final KsqlEngine ksqlEngine, | ||
| final JmxDataPointsReporter jmxDataPointsReporter, | ||
| final Map<String, String> customTags) { | ||
| this.time = Objects.requireNonNull(time, "time"); | ||
| this.engine = Objects.requireNonNull(ksqlEngine, "ksqlEngine"); | ||
| this.reporter = Objects.requireNonNull(jmxDataPointsReporter, "jmxDataPointsReporter"); | ||
| this.customTags = Objects.requireNonNull(customTags, "customTags"); | ||
| } | ||
|
|
||
| @Override | ||
| public void run() { | ||
| final Instant now = time.get(); | ||
|
|
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| try { | ||
| final int numLeakedTopics = engine.reportNumberOfLeakedTopics(); | ||
| final int numLeakedStateDirs = engine.reportNumberOfLeakedStateDirs(); | ||
| final int numLeakedTopicsAfterCleanup = engine.reportNumLeakedTopicsAfterCleanup(); | ||
| final int numLeakedStateDirsAfterCleanup = engine.reportNumLeakedStateDirsAfterCleanup(); | ||
| reportLeakedResources( | ||
| now, | ||
| numLeakedTopics, | ||
| numLeakedStateDirs, | ||
| numLeakedTopicsAfterCleanup, | ||
| numLeakedStateDirsAfterCleanup); | ||
| } catch (final RuntimeException e) { | ||
| LOGGER.error("Error collecting leaked resources metrics", e); | ||
| throw e; | ||
| } | ||
| } | ||
|
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| private void reportLeakedResources( | ||
| final Instant now, | ||
| final int numLeakedTopics, | ||
| final int numLeakedStateDirs, | ||
| final int numLeakedTopicsAfterCleanup, | ||
| final int numLeakedStateDirsAfterCleanup) { | ||
| reportNumLeakedTopics(now, numLeakedTopics); | ||
| reportNumLeakedStateDirs(now, numLeakedStateDirs); | ||
| reportNumLeakedTopicsAfterCleanup(now, numLeakedTopicsAfterCleanup); | ||
| reportNumLeakedStateDirsAfterCleanup(now, numLeakedStateDirsAfterCleanup); | ||
| } | ||
|
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| private void reportNumLeakedTopics(final Instant now, final int numLeakedTopics) { | ||
| LOGGER.info("Reporting number of leaked topics: {}", numLeakedTopics); | ||
|
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| reporter.report( | ||
| ImmutableList.of( | ||
| new MetricsReporter.DataPoint( | ||
| now, | ||
| "leaked-topics", | ||
| numLeakedTopics, | ||
| customTags | ||
| ) | ||
| ) | ||
| ); | ||
| } | ||
|
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| private void reportNumLeakedStateDirs(final Instant now, final int numLeakedStateDirs) { | ||
| LOGGER.info("Reporting number of leaked state files: {}", numLeakedStateDirs); | ||
|
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||
| reporter.report( | ||
| ImmutableList.of( | ||
| new MetricsReporter.DataPoint( | ||
| now, | ||
| "leaked-state-dirs", | ||
| numLeakedStateDirs, | ||
| customTags | ||
| ) | ||
| ) | ||
| ); | ||
| } | ||
|
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| private void reportNumLeakedTopicsAfterCleanup( | ||
| final Instant now, | ||
| final int numLeakedTopicsAfterCleanup) { | ||
| LOGGER.info( | ||
| "Reporting number of leaked topics after cleanup: {}", | ||
| numLeakedTopicsAfterCleanup); | ||
|
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| reporter.report( | ||
| ImmutableList.of( | ||
| new MetricsReporter.DataPoint( | ||
| now, | ||
| "leaked-topics-after-cleanup", | ||
| numLeakedTopicsAfterCleanup, | ||
| customTags | ||
| ) | ||
| ) | ||
| ); | ||
| } | ||
|
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| private void reportNumLeakedStateDirsAfterCleanup( | ||
| final Instant now, | ||
| final int numLeakedStateDirsAfterCleanup) { | ||
| LOGGER.info( | ||
| "Reporting number of leaked state directories after cleanup: {}", | ||
| numLeakedStateDirsAfterCleanup); | ||
|
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| reporter.report( | ||
| ImmutableList.of( | ||
| new MetricsReporter.DataPoint( | ||
| now, | ||
| "leaked-state-dirs-after-cleanup", | ||
| numLeakedStateDirsAfterCleanup, | ||
| customTags | ||
| ) | ||
| ) | ||
| ); | ||
| } | ||
| } |
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