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retareta
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Fix the issue with DefaultSpanScope restoring wrong span in the TracerContextStorage upon detach (#11316)
Signed-off-by: Andriy Redko <andriy.redko@aiven.io>
1 parent 1e72603 commit 00dd577

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3 files changed

+94
-4
lines changed

3 files changed

+94
-4
lines changed

‎CHANGELOG.md

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Original file line numberDiff line numberDiff line change
@@ -185,6 +185,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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- Delegating CachingWeightWrapper#count to internal weight object ([#10543](https://github.com/opensearch-project/OpenSearch/pull/10543))
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- Fix per request latency last phase not tracked ([#10934](https://github.com/opensearch-project/OpenSearch/pull/10934))
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- Fix for stuck update action in a bulk with `retry_on_conflict` property ([#11152](https://github.com/opensearch-project/OpenSearch/issues/11152))
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- Fix the issue with DefaultSpanScope restoring wrong span in the TracerContextStorage upon detach ([#11316](https://github.com/opensearch-project/OpenSearch/issues/11316))
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- Remove shadowJar from `lang-painless` module publication ([#11369](https://github.com/opensearch-project/OpenSearch/issues/11369))
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- Fix remote shards balancer and remove unused variables ([#11167](https://github.com/opensearch-project/OpenSearch/pull/11167))
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- Fix bug where replication lag grows post primary relocation ([#11238](https://github.com/opensearch-project/OpenSearch/pull/11238))

‎libs/telemetry/src/main/java/org/opensearch/telemetry/tracing/DefaultSpanScope.java

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@@ -21,6 +21,7 @@
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class DefaultSpanScope implements SpanScope {
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private final Span span;
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private final SpanScope previousSpanScope;
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private final Span beforeSpan;
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private static final ThreadLocal<SpanScope> spanScopeThreadLocal = new ThreadLocal<>();
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private final TracerContextStorage<String, Span> tracerContextStorage;
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@@ -29,8 +30,14 @@ class DefaultSpanScope implements SpanScope {
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* @param span span
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* @param previousSpanScope before attached span scope.
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*/
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private DefaultSpanScope(Span span, SpanScope previousSpanScope, TracerContextStorage<String, Span> tracerContextStorage) {
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private DefaultSpanScope(
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Span span,
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final Span beforeSpan,
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SpanScope previousSpanScope,
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TracerContextStorage<String, Span> tracerContextStorage
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) {
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this.span = Objects.requireNonNull(span);
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this.beforeSpan = beforeSpan;
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this.previousSpanScope = previousSpanScope;
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this.tracerContextStorage = tracerContextStorage;
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}
@@ -43,7 +50,8 @@ private DefaultSpanScope(Span span, SpanScope previousSpanScope, TracerContextSt
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*/
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public static SpanScope create(Span span, TracerContextStorage<String, Span> tracerContextStorage) {
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final SpanScope beforeSpanScope = spanScopeThreadLocal.get();
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SpanScope newSpanScope = new DefaultSpanScope(span, beforeSpanScope, tracerContextStorage);
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final Span beforeSpan = tracerContextStorage.get(TracerContextStorage.CURRENT_SPAN);
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SpanScope newSpanScope = new DefaultSpanScope(span, beforeSpan, beforeSpanScope, tracerContextStorage);
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return newSpanScope;
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}
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@@ -61,8 +69,8 @@ public SpanScope attach() {
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private void detach() {
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spanScopeThreadLocal.set(previousSpanScope);
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if (previousSpanScope != null) {
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tracerContextStorage.put(TracerContextStorage.CURRENT_SPAN, previousSpanScope.getSpan());
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if (beforeSpan != null) {
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tracerContextStorage.put(TracerContextStorage.CURRENT_SPAN, beforeSpan);
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} else {
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tracerContextStorage.put(TracerContextStorage.CURRENT_SPAN, null);
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}

‎server/src/test/java/org/opensearch/telemetry/tracing/ThreadContextBasedTracerContextStorageTests.java

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Original file line numberDiff line numberDiff line change
@@ -145,6 +145,87 @@ public void run() {
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(nullValue()));
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}
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public void testNoThreadContextToPreserve() throws InterruptedException, ExecutionException, TimeoutException {
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final Runnable r = new Runnable() {
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@Override
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public void run() {
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assertThat(threadContext.getTransient(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(nullValue()));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(nullValue()));
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final Span local1 = tracer.startSpan(SpanCreationContext.internal().name("test-local-1"));
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try (SpanScope localScope = tracer.withSpanInScope(local1)) {
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try (StoredContext ignored = threadContext.stashContext()) {
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assertThat(local1.getParentSpan(), is(nullValue()));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(local1));
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}
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}
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final Span local2 = tracer.startSpan(SpanCreationContext.internal().name("test-local-2"));
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try (SpanScope localScope = tracer.withSpanInScope(local2)) {
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try (StoredContext ignored = threadContext.stashContext()) {
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assertThat(local2.getParentSpan(), is(nullValue()));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(local2));
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}
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}
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final Span local3 = tracer.startSpan(SpanCreationContext.internal().name("test-local-3"));
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try (SpanScope localScope = tracer.withSpanInScope(local3)) {
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try (StoredContext ignored = threadContext.stashContext()) {
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assertThat(local3.getParentSpan(), is(nullValue()));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(local3));
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}
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}
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}
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};
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executorService.submit(threadContext.preserveContext(r)).get(1, TimeUnit.SECONDS);
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assertThat(threadContext.getTransient(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(nullValue()));
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}
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public void testPreservingContextThreadContextMultipleSpans() throws InterruptedException, ExecutionException, TimeoutException {
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final Span span = tracer.startSpan(SpanCreationContext.internal().name("test"));
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try (SpanScope scope = tracer.withSpanInScope(span)) {
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final Runnable r = new Runnable() {
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@Override
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public void run() {
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assertThat(threadContext.getTransient(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(not(nullValue())));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(span));
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final Span local1 = tracer.startSpan(SpanCreationContext.internal().name("test-local-1"));
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try (SpanScope localScope = tracer.withSpanInScope(local1)) {
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try (StoredContext ignored = threadContext.stashContext()) {
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assertThat(local1.getParentSpan(), is(span));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(local1));
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}
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}
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final Span local2 = tracer.startSpan(SpanCreationContext.internal().name("test-local-2"));
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try (SpanScope localScope = tracer.withSpanInScope(local2)) {
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try (StoredContext ignored = threadContext.stashContext()) {
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assertThat(local2.getParentSpan(), is(span));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(local2));
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}
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}
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final Span local3 = tracer.startSpan(SpanCreationContext.internal().name("test-local-3"));
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try (SpanScope localScope = tracer.withSpanInScope(local3)) {
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try (StoredContext ignored = threadContext.stashContext()) {
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assertThat(local3.getParentSpan(), is(span));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(local3));
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}
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}
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}
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};
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executorService.submit(threadContext.preserveContext(r)).get(1, TimeUnit.SECONDS);
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}
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assertThat(threadContext.getTransient(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(not(nullValue())));
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assertThat(threadContextStorage.get(ThreadContextBasedTracerContextStorage.CURRENT_SPAN), is(nullValue()));
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}
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public void testPreservingContextAndStashingThreadContext() throws InterruptedException, ExecutionException, TimeoutException {
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final Span span = tracer.startSpan(SpanCreationContext.internal().name("test"));
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