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Fix flaky test RemoteIndexShardtests.testRepicaCleansUpOldCommitsWhenReceivingNew #11111

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merged 1 commit into from
Nov 6, 2023
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Fix flaky test RemoteIndexShardtests.testRepicaCleansUpOldCommitsWhenReceivingNew #11111

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20 changes: 14 additions & 6 deletions server/src/test/java/org/opensearch/index/shard/RemoteIndexShardTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@
import org.opensearch.indices.replication.common.ReplicationFailedException;
import org.opensearch.indices.replication.common.ReplicationType;
import org.opensearch.test.CorruptionUtils;
import org.opensearch.test.junit.annotations.TestLogging;
import org.hamcrest.MatcherAssert;
import org.junit.Assert;

Expand Down Expand Up @@ -297,31 +298,39 @@ public void testPrimaryRestart_PrimaryHasExtraCommits() throws Exception {
}
}

@TestLogging(reason = "Getting trace logs from replication package", value = "org.opensearch.indices.replication:TRACE")
public void testRepicaCleansUpOldCommitsWhenReceivingNew() throws Exception {
final Path remotePath = createTempDir();
try (ReplicationGroup shards = createGroup(1, getIndexSettings(), indexMapping, new NRTReplicationEngineFactory(), remotePath)) {
shards.startAll();
final IndexShard primary = shards.getPrimary();
final IndexShard replica = shards.getReplicas().get(0);
final Store store = replica.store();
final SegmentInfos initialCommit = store.readLastCommittedSegmentsInfo();
shards.indexDocs(1);
flushShard(primary);
replicateSegments(primary, shards.getReplicas());

assertDocCount(primary, 1);
assertDocCount(replica, 1);
assertEquals("segments_5", replica.store().readLastCommittedSegmentsInfo().getSegmentsFileName());
assertSingleSegmentFile(replica, "segments_5");
assertSingleSegmentFile(replica);
final SegmentInfos secondCommit = store.readLastCommittedSegmentsInfo();
assertTrue(secondCommit.getGeneration() > initialCommit.getGeneration());

shards.indexDocs(1);
primary.refresh("test");
replicateSegments(primary, shards.getReplicas());
assertDocCount(replica, 2);
assertSingleSegmentFile(replica, "segments_5");
assertSingleSegmentFile(replica);
assertEquals(store.readLastCommittedSegmentsInfo().getGeneration(), secondCommit.getGeneration());

shards.indexDocs(1);
flushShard(primary);
replicateSegments(primary, shards.getReplicas());
assertDocCount(replica, 3);
assertSingleSegmentFile(replica, "segments_6");
assertSingleSegmentFile(replica);
final SegmentInfos thirdCommit = store.readLastCommittedSegmentsInfo();
assertTrue(thirdCommit.getGeneration() > secondCommit.getGeneration());

final Store.RecoveryDiff diff = Store.segmentReplicationDiff(primary.getSegmentMetadataMap(), replica.getSegmentMetadataMap());
assertTrue(diff.missing.isEmpty());
Expand Down Expand Up @@ -571,11 +580,10 @@ protected void validateShardIdleWithNoReplicas(IndexShard primary) {
assertFalse(primary.hasRefreshPending());
}

private void assertSingleSegmentFile(IndexShard shard, String fileName) throws IOException {
private void assertSingleSegmentFile(IndexShard shard) throws IOException {
final Set<String> segmentsFileNames = Arrays.stream(shard.store().directory().listAll())
.filter(file -> file.startsWith(IndexFileNames.SEGMENTS))
.collect(Collectors.toSet());
assertEquals("Expected a single segment file", 1, segmentsFileNames.size());
assertEquals(segmentsFileNames.stream().findFirst().get(), fileName);
}
}
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