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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_r45725539 --- Diff: flink-contrib/flink-storm-examples/src/main/java/org/apache/flink/storm/util/BoltFileSink.java --- @@ -40,16 +43,17 @@ public BoltFileSink(final String path) { public BoltFileSink(final String path, final OutputFormatter formatter) { super(formatter); - this.path = path; + this.path = new Path(path); } @SuppressWarnings("rawtypes") @Override public void prepareSimple(final Map stormConf, final TopologyContext context) { try { - this.writer = new BufferedWriter(new FileWriter(this.path)); + FSDataOutputStream outputStream = FileSystem.getLocalFileSystem().create(path, false); + this.writer = new BufferedWriter(new OutputStreamWriter(outputStream)); } catch (final IOException e) { --- End diff -- Same here. > 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)