Fix randomized test failure NRTReplicationEngineTests.testUpdateSegments

Overload `generateHistoryOnReplica` to be able to generate only a specific `Engine.Operation.TYPE` operations as required by the `testUpdateSegments` test Signed-off-by: Rabi Panda <[email protected]>
opensearch-project · Sep 1, 2022 · abd82f3 · abd82f3
1 parent 4a6e937
commit abd82f3
Show file tree

Hide file tree

Showing 3 changed files with 26 additions and 6 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -28,7 +28,8 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Add timeout on Mockito.verify to reduce flakyness in testReplicationOnDone test([#4314](https://github.com/opensearch-project/OpenSearch/pull/4314))
 - Commit workflow for dependabot changelog helper ([#4331](https://github.com/opensearch-project/OpenSearch/pull/4331))
 - Fixed cancellation of segment replication events ([#4225](https://github.com/opensearch-project/OpenSearch/pull/4225))
-- Bugs for dependabot changelog verifier workflow ([#4364](https://github.com/opensearch-project/OpenSearch/pull/4364)) 
+- Bugs for dependabot changelog verifier workflow ([#4364](https://github.com/opensearch-project/OpenSearch/pull/4364))
+- Fix flaky random test `NRTReplicationEngineTests.testUpdateSegments` ([#4352](https://github.com/opensearch-project/OpenSearch/pull/4352))
 
 ### Security
 - CVE-2022-25857 org.yaml:snakeyaml DOS vulnerability ([#4341](https://github.com/opensearch-project/OpenSearch/pull/4341))

diff --git a/server/src/test/java/org/opensearch/index/engine/NRTReplicationEngineTests.java b/server/src/test/java/org/opensearch/index/engine/NRTReplicationEngineTests.java
@@ -112,10 +112,14 @@ public void testUpdateSegments() throws Exception {
             final NRTReplicationEngine nrtEngine = buildNrtReplicaEngine(globalCheckpoint, nrtEngineStore)
         ) {
             // add docs to the primary engine.
-            List<Engine.Operation> operations = generateHistoryOnReplica(between(1, 500), randomBoolean(), randomBoolean(), randomBoolean())
-                .stream()
-                .filter(op -> op.operationType().equals(Engine.Operation.TYPE.INDEX))
-                .collect(Collectors.toList());
+            List<Engine.Operation> operations = generateHistoryOnReplica(
+                between(1, 500),
+                randomBoolean(),
+                randomBoolean(),
+                randomBoolean(),
+                Engine.Operation.TYPE.INDEX
+            );
+
             for (Engine.Operation op : operations) {
                 applyOperation(engine, op);
                 applyOperation(nrtEngine, op);

diff --git a/test/framework/src/main/java/org/opensearch/index/engine/EngineTestCase.java b/test/framework/src/main/java/org/opensearch/index/engine/EngineTestCase.java
@@ -1070,14 +1070,29 @@ public List<Engine.Operation> generateHistoryOnReplica(
         boolean allowGapInSeqNo,
         boolean allowDuplicate,
         boolean includeNestedDocs
+    ) throws Exception {
+        return generateHistoryOnReplica(
+            numOps,
+            allowGapInSeqNo,
+            allowDuplicate,
+            includeNestedDocs,
+            randomFrom(Engine.Operation.TYPE.values())
+        );
+    }
+
+    public List<Engine.Operation> generateHistoryOnReplica(
+        int numOps,
+        boolean allowGapInSeqNo,
+        boolean allowDuplicate,
+        boolean includeNestedDocs,
+        Engine.Operation.TYPE opType
     ) throws Exception {
         long seqNo = 0;
         final int maxIdValue = randomInt(numOps * 2);
         final List<Engine.Operation> operations = new ArrayList<>(numOps);
         CheckedBiFunction<String, Integer, ParsedDocument, IOException> nestedParsedDocFactory = nestedParsedDocFactory();
         for (int i = 0; i < numOps; i++) {
             final String id = Integer.toString(randomInt(maxIdValue));
-            final Engine.Operation.TYPE opType = randomFrom(Engine.Operation.TYPE.values());
             final boolean isNestedDoc = includeNestedDocs && opType == Engine.Operation.TYPE.INDEX && randomBoolean();
             final int nestedValues = between(0, 3);
             final long startTime = threadPool.relativeTimeInNanos();