Hello, When upgrading from flink-1.3.2 to flink-1.4.2, I faced this error on runtime of a Flink job :
java.util.ServiceConfigurationError: An SPI class of type org.apache.lucene.codecs.PostingsFormat with classname org.apache.lucene.search.suggest.document.Completion50PostingsFormat does not exist, please fix the file 'META-INF/services/org.apache.lucene.codecs.PostingsFormat' in your classpath. I added lucene-suggest dependency and then I encountered this : java.lang.ClassCastException: class org.elasticsearch.search.suggest.completion2x.Completion090PostingsFormat The Flink job runs Lucene queries on a data stream which ends up in an Elasticsearch index. It seems to me that this exception is a side effect of shading flink-connector-elasticsearch-5 dependencies. Actually, the only solution I have found is to re-build flink-connector-elasticsearch-5 jar excluding META-INF/services/org.apache.lucene.codecs.* I would highly appreciate any opinion on this workaround. Could it have side effect ? Thanks. And by the way, congrats to all Flink contributors, this is a pretty good piece of technology ! Regards, Manuel Haddadi
