Thanks Ziyad. That was a cut and paste error. Anyway, I figured out a
solution to the issue. All of my Flink dependancies were pointing at 1.3.1.
Pointing at 1.3.0 resolved the issue.
On Wed, Jul 12, 2017 at 2:17 AM, Ziyad Muhammed <mmzi...@gmail.com> wrote:
> Hi Sridhar
>
> Are you using *ParameterTool *to set the properties? I couldn't see it in
> your code, but you use it in the below line:
>
> FlinkKafkaConsumer010<LogMessage> flinkConsumer =
> new FlinkKafkaConsumer010<LogMessage>(
>
> Arrays.asList(parameterTool.getRequired("topic").split(",")), new
> LogDeserializationSchema(), parameterTool.getProperties());
>
>
> Make sure that the correct properties are passed to FlinkKafkaConsumer.
>
>
> Best
>
> Ziyad
>
>
>
> Best Regards
> *Ziyad Muhammed Mohiyudheen *
> 407, Internationales Studienzentrum Berlin
> Theodor-Heuss-Platz 5
> 14052 Berlin
> *Ph: +49 176 6587 3343 <%2B49%20176%206587%203343>*
> *Mail to*: *mmzi...@gmail.com <mmzi...@gmail.com>*
>
> On Tue, Jul 11, 2017 at 9:12 AM, Sridhar Chellappa <flinken...@gmail.com>
> wrote:
>
>> I am pretty sure I am doing something wrong here. Just that I do not
>> understand why?
>>
>> I wrote a small program that reads messages from Kafka and prints it out.
>>
>>
>>
>> public class Main {
>>
>> private static final int CHECKPOINT_INTERVAL = 100000;
>>
>>
>> private static Properties getpropsFromEnv() {
>> Properties props = new Properties();
>> props.setProperty("bootstrap.servers",
>> System.getenv("KAFKA_ADDRESS"));
>> props.setProperty("group.id", System.getenv("CONSUMER_GROUP_ID"));
>> props.setProperty("topic", System.getenv("KAFKA_TOPIC"));
>> return props;
>> }
>>
>> public static void main(String[] args) throws Exception {
>>
>>
>> Properties props = getpropsFromEnv();
>>
>>
>> StreamExecutionEnvironment env =
>> StreamExecutionEnvironment.getExecutionEnvironment();
>> env.enableCheckpointing(CHECKPOINT_INTERVAL);
>> env.setParallelism(1);
>> FlinkKafkaConsumer010<LogMessage> flinkConsumer =
>> new FlinkKafkaConsumer010<LogMessage>(
>>
>> Arrays.asList(parameterTool.getRequired("topic").split(",")), new
>> LogDeserializationSchema(), parameterTool.getProperties()
>> );
>>
>> DataStream<LogMessage> logMessageDataStream =
>> env.addSource(flinkConsumer);
>> logMessageDataStream.print();
>>
>> env.execute("SomeJob");
>>
>> }
>> }
>>
>> public class LogDeserializationSchema implements
>> DeserializationSchema<LogMessage> {
>>
>> @Override
>> public LogMessage deserialize(byte[] message) {
>> LogMessage logMessage = null;
>> try {
>> logMessage = LogMessage.parseFrom(message);
>> } catch (InvalidProtocolBufferException e) {
>> e.printStackTrace();
>> } finally {
>> return logMessage;
>> }
>> }
>>
>> @Override
>> public boolean isEndOfStream(LogMessage nextElement) {
>> return false;
>> }
>>
>> @Override
>> public TypeInformation<LogMessage> getProducedType() {
>> return TypeExtractor.getForClass(LogMessage.class);
>> }
>> }
>>
>>
>> When I run this program, I do not see any messages being read by the
>> consumer.
>>
>> Things to note :
>>
>> 1. I ran kafka-console-consumer using the same Kafka parameters and saw
>> continuous output.
>>
>> 2. My Gradle file has the following depencies :
>>
>> dependencies {
>> compile group: 'ch.qos.logback', name: 'logback-classic', version:
>> '1.1.7'
>>
>>
>> compile 'org.aeonbits.owner:owner:1.0.9'
>> compile group: 'com.mashape.unirest', name: 'unirest-java', version:
>> '1.4.9' // For driver Suspension
>> compile group: 'joda-time', name: 'joda-time', version: '2.9.4'
>> compile 'com.google.protobuf:protobuf-java-util:3.1.0'
>>
>> /*
>> * Flink Dependencies
>> */
>> compile group: 'org.apache.flink', name: 'flink-java', version: '1.3.0'
>> compile group: 'org.apache.flink', name:
>> 'flink-connector-kafka-0.10_2.10', version: '1.3.0'
>> compile group: 'org.apache.flink', name: 'flink-streaming-java_2.10',
>> version: '1.3.0'
>> compile group: 'org.apache.flink', name: 'flink-clients_2.10', version:
>> '1.3.0'
>>
>>
>>
>>
>> }
>>
>> Can Someone please help ?
>>
>>
>
