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ASF GitHub Bot commented on FLINK-2837: --------------------------------------- Github user mjsax commented on a diff in the pull request: https://github.com/apache/flink/pull/1398#discussion_r46284023 --- Diff: flink-contrib/flink-storm/src/main/java/org/apache/flink/storm/wrappers/BoltWrapper.java --- @@ -89,13 +99,9 @@ public BoltWrapper(final IRichBolt bolt) throws IllegalArgumentException { * used within a Flink streaming program. The given input schema enable attribute-by-name access for input types * {@link Tuple0} to {@link Tuple25}. The output type will be one of {@link Tuple0} to {@link Tuple25} depending on * the bolt's declared number of attributes. - * - * @param bolt - * The Storm {@link IRichBolt bolt} to be used. + * @param bolt The Storm {@link IRichBolt bolt} to be used. * @param inputSchema - * The schema (ie, ordered field names) of the input stream. - * @throws IllegalArgumentException --- End diff -- Please keep `@throws` > FlinkTopologyBuilder cannot handle multiple input streams > --------------------------------------------------------- > > Key: FLINK-2837 > URL: https://issues.apache.org/jira/browse/FLINK-2837 > Project: Flink > Issue Type: Bug > Components: Storm Compatibility > Reporter: Matthias J. Sax > Assignee: Maximilian Michels > > FlinkTopologyBuilder cannot handle multiple input streams correctly. Instead > of union the incoming streams, it replicates the consuming bolt and each > (logical) instance processes one of the input streams. > For example: > {noformat} > final FlinkTopologyBuilder builder = new FlinkTopologyBuilder(); > builder.setSpout(spoutId1, new FiniteRandomSpout(0, 10)); > builder.setSpout(spoutId2, new FiniteRandomSpout(1, 8)); > builder.setSpout(spoutId3, new FiniteRandomSpout(2, 13)); > builder.setBolt(boltId, new MergerBolt()) > .shuffleGrouping(spoutId1) > .shuffleGrouping(spoutId2) > .shuffleGrouping(spoutId3); > builder.setBolt("sink", new BoltPrintSink(new SimpleOutputFormatter())) > .shuffleGrouping(boltId); > {noformat} > will only print the data from a single source instead of all sources. -- This message was sent by Atlassian JIRA (v6.3.4#6332)