zhtaoxiang commented on code in PR #12522:
URL: https://github.com/apache/pinot/pull/12522#discussion_r1511624796
##########
pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/RealtimeSegmentDataManager.java:
##########
@@ -1661,22 +1666,35 @@ private void makeStreamConsumer(String reason) {
closePartitionGroupConsumer();
}
_segmentLogger.info("Creating new stream consumer for topic partition {} ,
reason: {}", _clientId, reason);
- _partitionGroupConsumer =
- _streamConsumerFactory.createPartitionGroupConsumer(_clientId,
_partitionGroupConsumptionStatus);
- _partitionGroupConsumer.start(_currentOffset);
+ try {
+ _partitionGroupConsumer =
+ _streamConsumerFactory.createPartitionGroupConsumer(_clientId,
_partitionGroupConsumptionStatus);
+ _partitionGroupConsumer.start(_currentOffset);
+ } catch (Exception e) {
+ _segmentLogger.error("Faced exception while trying to recreate stream
consumer for topic partition {} reason {}",
+ _clientId, reason, e);
+ _serverMetrics.addMeteredTableValue(_clientId,
ServerMeter.STREAM_CONSUMER_CREATE_EXCEPTIONS, 1L);
+ throw e;
+ }
}
/**
* Checkpoints existing consumer before creating a new consumer instance
* Assumes there is a valid instance of {@link PartitionGroupConsumer}
*/
private void recreateStreamConsumer(String reason) {
- _segmentLogger.info("Recreating stream consumer for topic partition {},
reason: {}", _clientId, reason);
- _currentOffset = _partitionGroupConsumer.checkpoint(_currentOffset);
- closePartitionGroupConsumer();
- _partitionGroupConsumer =
- _streamConsumerFactory.createPartitionGroupConsumer(_clientId,
_partitionGroupConsumptionStatus);
- _partitionGroupConsumer.start(_currentOffset);
+ try {
+ _segmentLogger.info("Recreating stream consumer for topic partition {},
reason: {}", _clientId, reason);
+ _currentOffset = _partitionGroupConsumer.checkpoint(_currentOffset);
+ closePartitionGroupConsumer();
Review Comment:
If the 1st or 2nd line throws an exception,
1. that means the old consumer is still running, may be it can still be used
for consuming data?
2. the error is not really about creating consumer, in this case, maybe we
don't want to increase the metric, WDYT?
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