djaneluz commented on issue #21825:
URL: https://github.com/apache/beam/issues/21825#issuecomment-1255455551
Hello!
I have a streaming pipeline that consumes Pub/Sub messages, extracts keys,
group them by window (FixedWindow of 5 min) and call Redis to get the values,
that are used as side input to another step.
Something like:
final PCollection<KV<String, Iterable<MyMessage>>> myMessageKV =
pipeline
.apply("ReadPubSubMessages",
PubsubIO.readMessages().fromSubscription(options.getSubscription()))
.apply("ExtractAndParse", ParDo.of(new ExtractAndParse()))
.apply("MapMessageWithKey",
MapElements.into(TypeDescriptors.kvs(TypeDescriptors.strings(),
TypeDescriptor.of(MyMessage.class)))
.via(m-> KV.of(m.getMyKey(), m)))
.apply("5MinFixedWindow",
Window.into(FixedWindows.of(Duration.standardMinutes(5))))
.apply("GroupByKey", GroupByKey.create());
final PCollectionView<Map<String, Iterable<String>>> myCache =
myMessageKV
.apply("ExtractKeys", Keys.create())
.apply("ReadRedis", RedisIO.readKeyPatterns()
.withEndpoint(redisHost, REDIS_PORT)
.withOutputParallelization(false))
.apply("ViewAsMultiMapFromCache", View.asMultimap());
final PCollectionTuple outputs = myMessageKV
.apply("EnrichMessage", ParDo.of(new EnrichMessages())
.withSideInput(REF_CODE_CACHE_TAG_ID,
refCodeCache));
...
I just ran the pipeline again with BEAM version _2.41.0_ and got the error.
With version _2.38.0_ it works just fine.
Let me know what more do you need.
Thanks
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