showuon commented on code in PR #14113:
URL: https://github.com/apache/kafka/pull/14113#discussion_r1312804527
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core/src/test/java/kafka/log/remote/RemoteLogManagerTest.java:
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@@ -754,6 +755,59 @@ void
testCopyLogSegmentsToRemoteShouldNotCopySegmentForFollower() throws Excepti
verify(mockLog, never()).updateHighestOffsetInRemoteStorage(anyLong());
}
+ @Test
+ void
testRLMTaskDoesNotUploadSegmentsWhenRemoteLogMetadataManagerIsNotInitialized()
throws Exception {
+ long oldSegmentStartOffset = 0L;
+ long nextSegmentStartOffset = 150L;
+
+
when(mockLog.topicPartition()).thenReturn(leaderTopicIdPartition.topicPartition());
+
+ // leader epoch preparation
+ checkpoint.write(totalEpochEntries);
+ LeaderEpochFileCache cache = new
LeaderEpochFileCache(leaderTopicIdPartition.topicPartition(), checkpoint);
+ when(mockLog.leaderEpochCache()).thenReturn(Option.apply(cache));
+
+ // Throw a retryable exception so indicate that the remote log
metadata manager is not initialized yet
+
when(remoteLogMetadataManager.highestOffsetForEpoch(any(TopicIdPartition.class),
anyInt()))
+ .thenThrow(new ReplicaNotAvailableException("Remote log metadata
cache is not initialized for partition: " + leaderTopicIdPartition));
+
+ // create 2 log segments, with 0 and 150 as log start offset
+ LogSegment oldSegment = mock(LogSegment.class);
+ LogSegment activeSegment = mock(LogSegment.class);
+
+ when(oldSegment.baseOffset()).thenReturn(oldSegmentStartOffset);
+ when(activeSegment.baseOffset()).thenReturn(nextSegmentStartOffset);
+
+ when(mockLog.activeSegment()).thenReturn(activeSegment);
+ when(mockLog.logStartOffset()).thenReturn(oldSegmentStartOffset);
+ when(mockLog.logSegments(anyLong(),
anyLong())).thenReturn(JavaConverters.collectionAsScalaIterable(Arrays.asList(oldSegment,
activeSegment)));
+ when(mockLog.lastStableOffset()).thenReturn(250L);
+
+ // Ensure the metrics for remote write requests/failures is zero
before attempt to copy log segment
+ assertEquals(0,
brokerTopicStats.topicStats(leaderTopicIdPartition.topic()).remoteCopyRequestRate().count());
+ assertEquals(0,
brokerTopicStats.topicStats(leaderTopicIdPartition.topic()).failedRemoteCopyRequestRate().count());
+ // Ensure aggregate metrics
+ assertEquals(0,
brokerTopicStats.allTopicsStats().remoteCopyRequestRate().count());
+ assertEquals(0,
brokerTopicStats.allTopicsStats().failedRemoteCopyRequestRate().count());
+
+ RemoteLogManager.RLMTask task = remoteLogManager.new
RLMTask(leaderTopicIdPartition, 128);
+ task.convertToLeader(0);
+ task.run();
+
+ // verify the remoteLogMetadataManager never add any metadata and
remoteStorageManager never copy log segments
+ verify(remoteLogMetadataManager,
never()).addRemoteLogSegmentMetadata(any(RemoteLogSegmentMetadata.class));
+ verify(remoteStorageManager,
never()).copyLogSegmentData(any(RemoteLogSegmentMetadata.class),
any(LogSegmentData.class));
Review Comment:
We can't assure if the RLMTask thread is already run once or not when
verifying these things under current testing. Could we just invoke
`task.copyLogSegmentsToRemote` and verify it throws exception we expected. And
then, we verify the following things.
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