private void resetOffsetIfNeeded(TopicPartition partition, Long requestedResetTimestamp, OffsetData offsetData) { // we might lose the assignment while fetching the offset, or the user might seek to a different offset, // so verify it is still assigned and still in need of the requested reset if (!subscriptions.isAssigned(partition)) { log.debug("Skipping reset of partition {} since it is no longer assigned", partition); } else if (!subscriptions.isOffsetResetNeeded(partition)) { log.debug("Skipping reset of partition {} since reset is no longer needed", partition); } else if (!requestedResetTimestamp.equals(offsetResetStrategyTimestamp(partition))) { log.debug("Skipping reset of partition {} since an alternative reset has been requested", partition); } else { log.info("Resetting offset for partition {} to offset {}.", partition, offsetData.offset); offsetData.leaderEpoch.ifPresent(epoch -> metadata.updateLastSeenEpochIfNewer(partition, epoch)); subscriptions.seek(partition, offsetData.offset); } }
private void updateFetchPosition(TopicPartition tp) { if (subscriptions.isOffsetResetNeeded(tp)) { resetOffsetPosition(tp); } else if (!committed.containsKey(tp)) { subscriptions.requestOffsetReset(tp); resetOffsetPosition(tp); } else { subscriptions.seek(tp, committed.get(tp).offset()); } }
@Test public void testUpdateFetchPositionOfPausedPartitionsWithAValidPosition() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.seek(tp0, 10); subscriptions.pause(tp0); // paused partition already has a valid position fetcher.resetOffsetsIfNeeded(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertFalse(subscriptions.isFetchable(tp0)); // because tp is paused assertTrue(subscriptions.hasValidPosition(tp0)); assertEquals(10, subscriptions.position(tp0).longValue()); }
@Test public void testUpdateFetchPositionResetToLatestOffset() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.LATEST); client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.LATEST_TIMESTAMP), listOffsetResponse(Errors.NONE, 1L, 5L)); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertTrue(subscriptions.isFetchable(tp0)); assertEquals(5, subscriptions.position(tp0).longValue()); }
@Test public void partitionReset() { state.assignFromUser(singleton(tp0)); state.seek(tp0, 5); assertEquals(5L, (long) state.position(tp0)); state.requestOffsetReset(tp0); assertFalse(state.isFetchable(tp0)); assertTrue(state.isOffsetResetNeeded(tp0)); assertEquals(null, state.position(tp0)); // seek should clear the reset and make the partition fetchable state.seek(tp0, 0); assertTrue(state.isFetchable(tp0)); assertFalse(state.isOffsetResetNeeded(tp0)); }
@Test public void testUpdateFetchPositionResetToDefaultOffset() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0); client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.EARLIEST_TIMESTAMP), listOffsetResponse(Errors.NONE, 1L, 5L)); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertTrue(subscriptions.isFetchable(tp0)); assertEquals(5, subscriptions.position(tp0).longValue()); }
@Test public void testUpdateFetchPositionResetToEarliestOffset() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.EARLIEST); client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.EARLIEST_TIMESTAMP), listOffsetResponse(Errors.NONE, 1L, 5L)); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertTrue(subscriptions.isFetchable(tp0)); assertEquals(5, subscriptions.position(tp0).longValue()); }
@Test public void testFetchDisconnected() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.seek(tp0, 0); assertEquals(1, fetcher.sendFetches()); client.prepareResponse(fullFetchResponse(tp0, this.records, Errors.NONE, 100L, 0), true); consumerClient.poll(time.timer(0)); assertEquals(0, fetcher.fetchedRecords().size()); // disconnects should have no affect on subscription state assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertTrue(subscriptions.isFetchable(tp0)); assertEquals(0, subscriptions.position(tp0).longValue()); }
@Test public void testFetchedRecordsAfterSeek() { subscriptionsNoAutoReset.assignFromUser(singleton(tp0)); subscriptionsNoAutoReset.seek(tp0, 0); assertTrue(fetcherNoAutoReset.sendFetches() > 0); client.prepareResponse(fullFetchResponse(tp0, this.records, Errors.OFFSET_OUT_OF_RANGE, 100L, 0)); consumerClient.poll(time.timer(0)); assertFalse(subscriptionsNoAutoReset.isOffsetResetNeeded(tp0)); subscriptionsNoAutoReset.seek(tp0, 2); assertEquals(0, fetcherNoAutoReset.fetchedRecords().size()); }
@Test public void testStaleOutOfRangeError() { // verify that an out of range error which arrives after a seek // does not cause us to reset our position or throw an exception subscriptions.assignFromUser(singleton(tp0)); subscriptions.seek(tp0, 0); assertEquals(1, fetcher.sendFetches()); client.prepareResponse(fullFetchResponse(tp0, this.records, Errors.OFFSET_OUT_OF_RANGE, 100L, 0)); subscriptions.seek(tp0, 1); consumerClient.poll(time.timer(0)); assertEquals(0, fetcher.fetchedRecords().size()); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertEquals(1, subscriptions.position(tp0).longValue()); }
@Test public void testFetchOffsetOutOfRange() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.seek(tp0, 0); assertEquals(1, fetcher.sendFetches()); client.prepareResponse(fullFetchResponse(tp0, this.records, Errors.OFFSET_OUT_OF_RANGE, 100L, 0)); consumerClient.poll(time.timer(0)); assertEquals(0, fetcher.fetchedRecords().size()); assertTrue(subscriptions.isOffsetResetNeeded(tp0)); assertEquals(null, subscriptions.position(tp0)); }
@Test public void testUpdateFetchPositionOfPausedPartitionsWithoutAValidPosition() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0); subscriptions.pause(tp0); // paused partition does not have a valid position fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertTrue(subscriptions.isOffsetResetNeeded(tp0)); assertFalse(subscriptions.isFetchable(tp0)); // because tp is paused assertFalse(subscriptions.hasValidPosition(tp0)); }
@Test public void testFetchOffsetOutOfRangeException() { subscriptionsNoAutoReset.assignFromUser(singleton(tp0)); subscriptionsNoAutoReset.seek(tp0, 0); fetcherNoAutoReset.sendFetches(); client.prepareResponse(fullFetchResponse(tp0, this.records, Errors.OFFSET_OUT_OF_RANGE, 100L, 0)); consumerClient.poll(time.timer(0)); assertFalse(subscriptionsNoAutoReset.isOffsetResetNeeded(tp0)); for (int i = 0; i < 2; i++) { try { fetcherNoAutoReset.fetchedRecords(); fail("Should have thrown OffsetOutOfRangeException"); } catch (OffsetOutOfRangeException e) { assertTrue(e.offsetOutOfRangePartitions().containsKey(tp0)); assertEquals(e.offsetOutOfRangePartitions().size(), 1); } } }
@Test public void testUpdateFetchPositionOfPausedPartitionsRequiringOffsetReset() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.pause(tp0); // paused partition does not have a valid position subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.LATEST); client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.LATEST_TIMESTAMP), listOffsetResponse(Errors.NONE, 1L, 10L)); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertFalse(subscriptions.isFetchable(tp0)); // because tp is paused assertTrue(subscriptions.hasValidPosition(tp0)); assertEquals(10, subscriptions.position(tp0).longValue()); }
@Test public void testResetOffsetsSkipsBlackedOutConnections() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.EARLIEST); // Check that we skip sending the ListOffset request when the node is blacked out client.blackout(node, 500); fetcher.resetOffsetsIfNeeded(); assertEquals(0, consumerClient.pendingRequestCount()); consumerClient.pollNoWakeup(); assertTrue(subscriptions.isOffsetResetNeeded(tp0)); assertEquals(OffsetResetStrategy.EARLIEST, subscriptions.resetStrategy(tp0)); time.sleep(500); client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.EARLIEST_TIMESTAMP), listOffsetResponse(Errors.NONE, 1L, 5L)); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertTrue(subscriptions.isFetchable(tp0)); assertEquals(5, subscriptions.position(tp0).longValue()); }
@Test public void testListOffsetsSendsIsolationLevel() { for (final IsolationLevel isolationLevel : IsolationLevel.values()) { Fetcher<byte[], byte[]> fetcher = createFetcher(subscriptions, new Metrics(), new ByteArrayDeserializer(), new ByteArrayDeserializer(), Integer.MAX_VALUE, isolationLevel); subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.LATEST); client.prepareResponse(new MockClient.RequestMatcher() { @Override public boolean matches(AbstractRequest body) { ListOffsetRequest request = (ListOffsetRequest) body; return request.isolationLevel() == isolationLevel; } }, listOffsetResponse(Errors.NONE, 1L, 5L)); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertTrue(subscriptions.isFetchable(tp0)); assertEquals(5, subscriptions.position(tp0).longValue()); } }
@Test public void testIdempotentResetWithInFlightReset() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.LATEST); // Send the ListOffsets request to reset the position fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.hasValidPosition(tp0)); assertTrue(client.hasInFlightRequests()); // Now we get a seek from the user subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.LATEST); client.respond(listOffsetResponse(Errors.NONE, 1L, 5L)); consumerClient.pollNoWakeup(); assertFalse(client.hasInFlightRequests()); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertEquals(5L, subscriptions.position(tp0).longValue()); }
@Test public void testChangeResetWithInFlightReset() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.LATEST); // Send the ListOffsets request to reset the position fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.hasValidPosition(tp0)); assertTrue(client.hasInFlightRequests()); // Now we get a seek from the user subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.EARLIEST); // The response returns and is discarded client.respond(listOffsetResponse(Errors.NONE, 1L, 5L)); consumerClient.pollNoWakeup(); assertFalse(client.hasPendingResponses()); assertFalse(client.hasInFlightRequests()); assertTrue(subscriptions.isOffsetResetNeeded(tp0)); assertEquals(OffsetResetStrategy.EARLIEST, subscriptions.resetStrategy(tp0)); }
@Test public void testResetOffsetsMetadataRefresh() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.LATEST); // First fetch fails with stale metadata client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.LATEST_TIMESTAMP), listOffsetResponse(Errors.NOT_LEADER_FOR_PARTITION, 1L, 5L), false); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.hasValidPosition(tp0)); // Expect a metadata refresh client.prepareMetadataUpdate(initialUpdateResponse); consumerClient.pollNoWakeup(); assertFalse(client.hasPendingMetadataUpdates()); // Next fetch succeeds time.sleep(retryBackoffMs); client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.LATEST_TIMESTAMP), listOffsetResponse(Errors.NONE, 1L, 5L)); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertTrue(subscriptions.isFetchable(tp0)); assertEquals(5, subscriptions.position(tp0).longValue()); }
@Test public void testUpdateFetchPositionDisconnect() { subscriptions.assignFromUser(singleton(tp0)); subscriptions.requestOffsetReset(tp0, OffsetResetStrategy.LATEST); // First request gets a disconnect client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.LATEST_TIMESTAMP), listOffsetResponse(Errors.NONE, 1L, 5L), true); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.hasValidPosition(tp0)); // Expect a metadata refresh client.prepareMetadataUpdate(initialUpdateResponse); consumerClient.pollNoWakeup(); assertFalse(client.hasPendingMetadataUpdates()); // No retry until the backoff passes fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(client.hasInFlightRequests()); assertFalse(subscriptions.hasValidPosition(tp0)); // Next one succeeds time.sleep(retryBackoffMs); client.prepareResponse(listOffsetRequestMatcher(ListOffsetRequest.LATEST_TIMESTAMP), listOffsetResponse(Errors.NONE, 1L, 5L)); fetcher.resetOffsetsIfNeeded(); consumerClient.pollNoWakeup(); assertFalse(subscriptions.isOffsetResetNeeded(tp0)); assertTrue(subscriptions.isFetchable(tp0)); assertEquals(5, subscriptions.position(tp0).longValue()); }