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renamed span_frames_min_duration to span_stack_trace_min_duration. Ch… (#2220)
* renamed span_frames_min_duration to span_stack_trace_min_duration. Changed logic when reporting. * added entry to changelog * fixed according to comments * fixed according to comments * added StacktraceConfigurationTest * added headers * updated logic and tests * Update apm-agent-core/src/main/java/co/elastic/apm/agent/impl/stacktrace/StacktraceConfiguration.java deleted aliasKey Co-authored-by: Felix Barnsteiner <[email protected]> * updated changelog * Update apm-agent-core/src/main/java/co/elastic/apm/agent/impl/stacktrace/StacktraceConfiguration.java Co-authored-by: Felix Barnsteiner <[email protected]> * Update CHANGELOG.asciidoc Co-authored-by: Felix Barnsteiner <[email protected]> * Update apm-agent-core/src/main/java/co/elastic/apm/agent/impl/ElasticApmTracer.java Co-authored-by: Felix Barnsteiner <[email protected]> * added logic with check default value of spanFramesMinDurationMsValue * fixed remaining references to config-span-frames-min-duration * fixed reference in CoreConfiguration Co-authored-by: Felix Barnsteiner <[email protected]> Co-authored-by: Felix Barnsteiner <[email protected]>
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‎CHANGELOG.asciidoc‎

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@@ -45,6 +45,9 @@ by the agent may be different. This was done in order to improve the integration
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* Add support for Spring AMQP batch API - {pull}1716[#1716]
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* Add the (current) transaction name to the error (when using APM Server 8.0) - {pull}2235[#2235]
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* The JVM/JMX metrics are reported for each service name individually (when using APM Server 8.0) - {pull}2233[#2233]
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* Added <<config-span-stack-trace-min-duration,`span_stack_trace_min_duration`>> option.
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This replaces the now deprecated `span_frames_min_duration` option.
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The difference is that the new option has more intuitive semantics for negative values (never collect stack trace) and zero (always collect stack trace). - {pull}2220[#2220]
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[float]
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===== Performance improvements

‎apm-agent-core/src/main/java/co/elastic/apm/agent/configuration/CoreConfiguration.java‎

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@@ -466,7 +466,7 @@ public class CoreConfiguration extends ConfigurationOptionProvider {
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"Also note that there is a maximum amount of spans per transaction (see <<config-transaction-max-spans, `transaction_max_spans`>>).\n" +
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"\n" +
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"NOTE: The agent will create stack traces for spans which took longer than\n" +
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"<<config-span-frames-min-duration, `span_frames_min_duration`>>.\n" +
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"<<config-span-stack-trace-min-duration, `span_stack_trace_min_duration`>>.\n" +
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"When tracing a large number of methods (for example by using wildcards),\n" +
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"this may lead to high overhead.\n" +
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"Consider increasing the threshold or disabling stack trace collection altogether.\n\n" +

‎apm-agent-core/src/main/java/co/elastic/apm/agent/impl/ElasticApmTracer.java‎

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@@ -407,9 +407,10 @@ private void reportSpan(Span span) {
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}
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// makes sure that parents are also non-discardable
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span.setNonDiscardable();
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long spanFramesMinDurationMs = stacktraceConfiguration.getSpanFramesMinDurationMs();
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if (spanFramesMinDurationMs != 0 && span.isSampled() && span.getStackFrames() == null) {
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if (span.getDurationMs() >= spanFramesMinDurationMs) {
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long spanStackTraceMinDurationMs = stacktraceConfiguration.getSpanStackTraceMinDurationMs();
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if (spanStackTraceMinDurationMs >= 0 && span.isSampled() && span.getStackFrames() == null) {
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if (span.getDurationMs() >= spanStackTraceMinDurationMs) {
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span.withStacktrace(new Throwable());
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}
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}

‎apm-agent-core/src/main/java/co/elastic/apm/agent/impl/stacktrace/StacktraceConfiguration.java‎

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@@ -67,7 +67,7 @@ public class StacktraceConfiguration extends ConfigurationOptionProvider {
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private final ConfigurationOption<TimeDuration> spanFramesMinDurationMs = TimeDurationValueConverter.durationOption("ms")
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.key("span_frames_min_duration")
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.aliasKeys("span_frames_min_duration_ms")
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.tags("performance")
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.tags("internal", "deprecated")
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.configurationCategory(STACKTRACE_CATEGORY)
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.description("While this is very helpful to find the exact place in your code that causes the span, " +
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"collecting this stack trace does have some overhead. " +
@@ -80,6 +80,21 @@ public class StacktraceConfiguration extends ConfigurationOptionProvider {
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.dynamic(true)
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.buildWithDefault(TimeDuration.of("5ms"));
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private final ConfigurationOption<TimeDuration> spanStackTraceMinDurationMs = TimeDurationValueConverter.durationOption("ms")
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.key("span_stack_trace_min_duration")
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.tags("performance")
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.configurationCategory(STACKTRACE_CATEGORY)
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.description("While this is very helpful to find the exact place in your code that causes the span, " +
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"collecting this stack trace does have some overhead. " +
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"\n" +
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"When setting this option to value `0ms`, stack traces will be collected for all spans. " +
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"Setting it to a positive value, e.g. `5ms`, will limit stack trace collection to spans " +
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"with durations equal to or longer than the given value, e.g. 5 milliseconds.\n" +
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"\n" +
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"To disable stack trace collection for spans completely, set the value to `-1ms`.")
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.dynamic(true)
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.buildWithDefault(TimeDuration.of("5ms"));
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public Collection<String> getApplicationPackages() {
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return applicationPackages.get();
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}
@@ -88,7 +103,17 @@ public int getStackTraceLimit() {
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return stackTraceLimit.get();
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}
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public long getSpanFramesMinDurationMs() {
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return spanFramesMinDurationMs.getValue().getMillis();
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public long getSpanStackTraceMinDurationMs() {
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if (spanStackTraceMinDurationMs.isDefault() && !spanFramesMinDurationMs.isDefault()) {
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long spanFramesMinDurationMsValue = spanFramesMinDurationMs.getValue().getMillis();
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if (spanFramesMinDurationMsValue == 0) {
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return -1;
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} else if (spanFramesMinDurationMsValue < 0) {
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return 0;
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} else {
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return spanFramesMinDurationMsValue;
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}
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}
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return spanStackTraceMinDurationMs.getValue().getMillis();
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}
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}

‎apm-agent-core/src/test/java/co/elastic/apm/agent/impl/ElasticApmTracerTest.java‎

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@@ -119,7 +119,8 @@ void testNestedSpan() {
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@Test
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void testDisableStacktraces() {
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when(tracerImpl.getConfig(StacktraceConfiguration.class).getSpanFramesMinDurationMs()).thenReturn(0L);
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when(tracerImpl.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs()).thenReturn(-1L);
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Transaction transaction = startTestRootTransaction();
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try (Scope scope = transaction.activateInScope()) {
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Span span = tracerImpl.getActive().createSpan();
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@Test
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void testEnableStacktraces() throws InterruptedException {
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when(tracerImpl.getConfig(StacktraceConfiguration.class).getSpanFramesMinDurationMs()).thenReturn(-1L);
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when(tracerImpl.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs()).thenReturn(0L);
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Transaction transaction = startTestRootTransaction();
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try (Scope scope = transaction.activateInScope()) {
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Span span = tracerImpl.getActive().createSpan();
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@Test
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void testDisableStacktracesForFastSpans() {
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when(tracerImpl.getConfig(StacktraceConfiguration.class).getSpanFramesMinDurationMs()).thenReturn(100L);
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when(tracerImpl.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs()).thenReturn(100L);
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Transaction transaction = startTestRootTransaction();
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try (Scope scope = transaction.activateInScope()) {
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Span span = tracerImpl.getActive().createSpan();
@@ -163,7 +164,7 @@ void testDisableStacktracesForFastSpans() {
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@Test
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void testEnableStacktracesForSlowSpans() throws InterruptedException {
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when(tracerImpl.getConfig(StacktraceConfiguration.class).getSpanFramesMinDurationMs()).thenReturn(1L);
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when(tracerImpl.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs()).thenReturn(1L);
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Transaction transaction = startTestRootTransaction();
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try (Scope scope = transaction.activateInScope()) {
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Span span = tracerImpl.getActive().createSpan();

‎apm-agent-core/src/test/java/co/elastic/apm/agent/impl/stacktrace/StacktraceConfigurationTest.java‎

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@@ -0,0 +1,69 @@
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/*
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* Licensed to Elasticsearch B.V. under one or more contributor
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* license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright
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* ownership. Elasticsearch B.V. licenses this file to you under
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* the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package co.elastic.apm.agent.impl.stacktrace;
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import co.elastic.apm.agent.configuration.SpyConfiguration;
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import org.junit.jupiter.api.Test;
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import org.stagemonitor.configuration.ConfigurationRegistry;
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import org.stagemonitor.configuration.source.SimpleSource;
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import static org.assertj.core.api.Assertions.assertThat;
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class StacktraceConfigurationTest {
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@Test
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void testGetSpanStackTraceMinDurationMs_whenSpanStackTraceMinDurationNonDefault_thenGetValueFromSpanStackTraceMinDuration() {
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ConfigurationRegistry configRegistry = SpyConfiguration.createSpyConfig(SimpleSource.forTest("span_frames_min_duration", "10ms").add("span_stack_trace_min_duration", "15ms"));
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long actual = configRegistry.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs();
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assertThat(actual).isEqualTo(15);
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}
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@Test
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void testGetSpanStackTraceMinDurationMs_whenSpanStackTraceDefault_whenSpanFramesNonDefault_thenGetValueFromSpanFramesMinDuration() {
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ConfigurationRegistry configRegistry = SpyConfiguration.createSpyConfig(SimpleSource.forTest("span_frames_min_duration", "15ms"));
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long actual = configRegistry.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs();
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assertThat(actual).isEqualTo(15);
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}
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@Test
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void testGetSpanStackTraceMinDurationMs_whenSpanStackTraceDefault_whenSpanFramesMinDurationIsZero_thenGetSwappedValueOfSpanFramesMinDuration() {
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ConfigurationRegistry configRegistry = SpyConfiguration.createSpyConfig(SimpleSource.forTest("span_frames_min_duration", "0ms"));
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long actual = configRegistry.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs();
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assertThat(actual).isEqualTo(-1);
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}
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@Test
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void testGetSpanStackTraceMinDurationMs_whenSpanStackTraceDefault_whenSpanFramesMinDurationIsNegative_thenGetSwappedValueOfSpanFramesMinDuration() {
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ConfigurationRegistry configRegistry = SpyConfiguration.createSpyConfig(SimpleSource.forTest("span_frames_min_duration", "-1ms"));
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long actual = configRegistry.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs();
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assertThat(actual).isEqualTo(0);
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}
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@Test
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void testGetSpanStackTraceMinDurationMs_defaultValue() {
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ConfigurationRegistry configRegistry = SpyConfiguration.createSpyConfig();
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long actual = configRegistry.getConfig(StacktraceConfiguration.class).getSpanStackTraceMinDurationMs();
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assertThat(actual).isEqualTo(5);
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}
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}

‎apm-agent-core/src/test/java/org/example/stacktrace/StacktraceSerializationTest.java‎

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@@ -58,7 +58,7 @@ void setUp() throws IOException {
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tracer = MockTracer.createRealTracer();
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stacktraceConfiguration = tracer.getConfig(StacktraceConfiguration.class);
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// always enable
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when(stacktraceConfiguration.getSpanFramesMinDurationMs()).thenReturn(-1L);
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when(stacktraceConfiguration.getSpanStackTraceMinDurationMs()).thenReturn(0L);
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serializer = new DslJsonSerializer(stacktraceConfiguration, mock(ApmServerClient.class), tracer.getMetaData());
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objectMapper = new ObjectMapper();
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stacktrace = getStackTrace();

‎apm-agent-plugins/apm-rabbitmq/apm-rabbitmq-spring/src/main/java/co/elastic/apm/agent/rabbitmq/AmqpConstants.java‎

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/*
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* Licensed to Elasticsearch B.V. under one or more contributor
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* license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright
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* ownership. Elasticsearch B.V. licenses this file to you under
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* the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package co.elastic.apm.agent.rabbitmq;
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public class AmqpConstants {

‎apm-agent-plugins/apm-rabbitmq/apm-rabbitmq-spring/src/main/java/co/elastic/apm/agent/rabbitmq/MessageBatchHelper.java‎

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/*
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* Licensed to Elasticsearch B.V. under one or more contributor
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* license agreements. See the NOTICE file distributed with
4+
* this work for additional information regarding copyright
5+
* ownership. Elasticsearch B.V. licenses this file to you under
6+
* the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
17+
* under the License.
18+
*/
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package co.elastic.apm.agent.rabbitmq;
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import co.elastic.apm.agent.impl.ElasticApmTracer;

‎apm-agent-plugins/apm-rabbitmq/apm-rabbitmq-spring/src/main/java/co/elastic/apm/agent/rabbitmq/MessageBatchIteratorWrapper.java‎

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/*
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* Licensed to Elasticsearch B.V. under one or more contributor
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* license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright
5+
* ownership. Elasticsearch B.V. licenses this file to you under
6+
* the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
10+
* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
18+
*/
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package co.elastic.apm.agent.rabbitmq;
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