Re: window function not working when control stream broadcast

Posted by Sam Huang on
URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/window-function-not-working-when-control-stream-broadcast-tp12093p12141.html

Hi Aljoscha,

Here's the code:

private static class DataFilterFunImpl extends RichCoFlatMapFunction<KVTuple6, String, KVTuple6> {
        private JSONParser parser;
        private Map<String, Map<String, ControlJsonConfig>> whiteListMap = new HashMap<>();

        @Override
        // tuple5(domain, device_type, type, key, count_or_sum)
        public void flatMap1(KVTuple6 dataTuple, Collector<KVTuple6> collector) throws Exception {
            String type = dataTuple.f2;
            String[] keyValue = dataTuple.f3.split(RawEventExtractor.Constants.DEFAULT_VALUE_SP);
            String key = keyValue[0];
            switch (type) {
                case RawEventExtractor.Constants.VALUE_COUNT: {
                    if (whiteListMap.containsKey(key)) {
                        ControlJsonConfig ruleConfig = whiteListMap.get(key).get(RawEventExtractor.Constants.VALUE_COUNT);
                        if (ruleConfig != null) {
                            String value = keyValue.length > 1 ? keyValue[1] : "";
                            String bucket = ruleConfig.getBucketName(value);
                            if (bucket != null) {
                                dataTuple.setField(String.join(RawEventExtractor.Constants.DEFAULT_VALUE_SP, key, bucket), 3);
                                collector.collect(dataTuple);
                            }
                        } else {
                            collector.collect(dataTuple);
                        }
                    }
                    break;
                }
                case RawEventExtractor.Constants.VALUE_SUM: {
                    if (whiteListMap.containsKey(key) && whiteListMap.get(key).containsKey(RawEventExtractor.Constants.VALUE_SUM)) {
                        collector.collect(dataTuple);
                    }
                    break;
                }
                default: collector.collect(dataTuple);
            }
        }


        @Override
        public void flatMap2(String jsonStr, Collector<KVTuple6> collector) throws Exception {
//            Map<String, Map<String, ControlJsonConfig>> whiteListMap = whiteListMapState.value();
            try {
                if (parser == null) {
                     parser = new JSONParser();
                }
                JSONObject jsonConfig = (JSONObject) parser.parse(jsonStr);
                Tuple2<String, Map<String, ControlJsonConfig>> config = RawEventExtractor.getKeyConfig(jsonConfig);
                if (config.f1 == null) {
                    whiteListMap.remove(config.f0);
                } else {
                    whiteListMap.put(config.f0, config.f1);
                }
            } catch (Exception e) {}
        }
    }

FYI, if I setParallelism of both the control stream and data stream, the window function works. Is it necessary to do so for broadcast() function?

On Thu, Mar 9, 2017 at 2:26 AM, Aljoscha Krettek <[hidden email]> wrote:

Hi Sam,

could you please also send the code for the DataFilterFunImpl and your timestamps/watermark assigner. That could help in figuring out the problem.

Best,

Aljoscha

On Wed, Mar 8, 2017, at 19:56, Sam Huang wrote:

Hi Timo,

The window function sinks the data into InfluxDB, and it's not triggered.

If I comment the ".timeWindow", and print results after the reduce function, it works

Code for window function is here:

private static class WindowFunImpl implements WindowFunction<KVTuple6,Point,Tuple,TimeWindow> {

    @Override
    public void apply(Tuple tuple, TimeWindow window, Iterable<KVTuple6> iterable,
                      Collector<Point> collector) throws Exception {
        KVTuple6 kvTypeTuple = iterable.iterator().next();
        System.out.println("window: " + kvTypeTuple);                     // Doesn't work here if use broadcast
        Point.Builder builder = Point.measurement(INFLUXDB_MEASUREMENT)
                .time(window.getStart(), TimeUnit.MILLISECONDS)

                .tag(TAG_DOMAIN, kvTypeTuple.f0)

                .tag(TAG_DEVICE, kvTypeTuple.f1)

                .tag(TAG_TYPE, kvTypeTuple.f2)

                .tag(TAG_KEY, kvTypeTuple.f3)

                .addField(FIELD, kvTypeTuple.f4);

        collector.collect(builder.build());
    }
}

On Wed, Mar 8, 2017 at 1:10 AM, Timo Walther <[hidden email]> wrote:

Hi Sam,

could you explain the behavior a bit more? How does the window function behave? Is it not triggered or what is the content? What is the result if you don't use a window function?

Timo

Am 08/03/17 um 02:59 schrieb Sam Huang:

btw, the reduce function works well, I've printed out the data, and they are

all correct. So are the timestamps and watermarks. And if I remove

".broadcast()", the data is successfully sinked.

Any help?

--

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