Hi, I resolved this issue of
java.lang.NoClassDefFoundError: org/apache/flink/table/api/TableEnvironment By adding the jar file flink-table_2.11-1.5.0.jar To $FLINK_HOME/lib It compiles and run OK now. Rather strange as I had this dependency in my SBT libraryDependencies += "org.apache.flink" %% "flink-table" % "1.5.0" % "provided" HTH Dr Mich Talebzadeh LinkedIn * https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* http://talebzadehmich.wordpress.com *Disclaimer:* Use it at your own risk. Any and all responsibility for any loss, damage or destruction of data or any other property which may arise from relying on this email's technical content is explicitly disclaimed. The author will in no case be liable for any monetary damages arising from such loss, damage or destruction. On Thu, 2 Aug 2018 at 08:26, Mich Talebzadeh <mich.talebza...@gmail.com> wrote: > Thanks everyone for the advice > > This worked and passed the compilation error > > import org.apache.flink.table.api.TableEnvironment > import org.apache.flink.table.api.scala._ > import org.apache.flink.api.scala._ > > …. > > val dataStream = streamExecEnv > .addSource(new FlinkKafkaConsumer011[String](topicsValue, new > SimpleStringSchema(), properties)) > val tableEnv = TableEnvironment.getTableEnvironment(streamExecEnv) > tableEnv.registerDataStream("priceTable", dataStream, "key, ticker, > timeissued, price") > sqltext = "SELECT key from priceTable"; > val result = tableEnv.sql(sqltext); > > Now I get this runtime error > > …. > [success] Total time: 16 s, completed Aug 2, 2018 8:23:12 AM > Completed compiling > Thu Aug 2 08:23:12 BST 2018 , Running in **Standalone mode** > Starting execution of program > java.lang.NoClassDefFoundError: > org/apache/flink/table/api/TableEnvironment$ > at md_streaming$.main(md_streaming.scala:140) > at md_streaming.main(md_streaming.scala) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at > org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:528) > at > org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:420) > at > org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:404) > at > org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:781) > at > org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:275) > at > org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:210) > at > org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1020) > at > org.apache.flink.client.cli.CliFrontend.lambda$main$9(CliFrontend.java:1096) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:422) > at > org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1836) > at > org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) > at > org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1096) > Caused by: java.lang.ClassNotFoundException: > org.apache.flink.table.api.TableEnvironment$ > at java.net.URLClassLoader.findClass(URLClassLoader.java:381) > at java.lang.ClassLoader.loadClass(ClassLoader.java:424) > at java.lang.ClassLoader.loadClass(ClassLoader.java:357) > > > Dr Mich Talebzadeh > > > > LinkedIn * > https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw > <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* > > > > http://talebzadehmich.wordpress.com > > > *Disclaimer:* Use it at your own risk. Any and all responsibility for any > loss, damage or destruction of data or any other property which may arise > from relying on this email's technical content is explicitly disclaimed. > The author will in no case be liable for any monetary damages arising from > such loss, damage or destruction. > > > > > On Thu, 2 Aug 2018 at 03:07, vino yang <yanghua1...@gmail.com> wrote: > >> Hi Mich, >> >> It seems that the type of your DataStream stream is always wrong. >> If you want to specify four fields, usually the DataStream type should be >> similar: DataStream[(Type1, Type2, Type3, Type4)], not DataStream[String], >> you can try it. >> >> Thanks, vino >> >> 2018-08-02 6:44 GMT+08:00 Mich Talebzadeh <mich.talebza...@gmail.com>: >> >>> Changed as suggested >>> >>> val streamExecEnv = >>> StreamExecutionEnvironment.getExecutionEnvironment >>> val dataStream = streamExecEnv >>> .addSource(new FlinkKafkaConsumer011[String](topicsValue, new >>> SimpleStringSchema(), properties)) >>> val tableEnv = TableEnvironment.getTableEnvironment(streamExecEnv) >>> tableEnv.registerDataStream("table1", streamExecEnv, 'key, 'ticker, >>> 'timeissued, 'price) >>> >>> Still the same error >>> >>> [info] Compiling 1 Scala source to >>> /home/hduser/dba/bin/flink/md_streaming/target/scala-2.11/classes... >>> [error] >>> /home/hduser/dba/bin/flink/md_streaming/src/main/scala/myPackage/md_streaming.scala:139: >>> overloaded method value registerDataStream with alternatives: >>> [error] [T](name: String, dataStream: >>> org.apache.flink.streaming.api.datastream.DataStream[T], fields: >>> String)Unit <and> >>> [error] [T](name: String, dataStream: >>> org.apache.flink.streaming.api.datastream.DataStream[T])Unit >>> [error] cannot be applied to (String, >>> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment, >>> Symbol, Symbol, Symbol, Symbol) >>> [error] tableEnv.registerDataStream("table1", streamExecEnv, 'key, >>> 'ticker, 'timeissued, 'price) >>> [error] ^ >>> [error] one error found >>> [error] (compile:compileIncremental) Compilation failed >>> [error] Total time: 3 s, completed Aug 1, 2018 11:40:47 PM >>> >>> Thanks anyway. >>> >>> Dr Mich Talebzadeh >>> >>> >>> >>> LinkedIn * >>> https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw >>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* >>> >>> >>> >>> http://talebzadehmich.wordpress.com >>> >>> >>> *Disclaimer:* Use it at your own risk. Any and all responsibility for >>> any loss, damage or destruction of data or any other property which may >>> arise from relying on this email's technical content is explicitly >>> disclaimed. The author will in no case be liable for any monetary damages >>> arising from such loss, damage or destruction. >>> >>> >>> >>> >>> On Wed, 1 Aug 2018 at 23:34, Fabian Hueske <fhue...@gmail.com> wrote: >>> >>>> Hi, >>>> >>>> You have to pass the StreamExecutionEnvironment to the >>>> getTableEnvironment() method, not the DataStream (or DataStreamSource). >>>> Change >>>> >>>> val tableEnv = TableEnvironment.getTableEnvironment(dataStream) >>>> >>>> to >>>> >>>> val tableEnv = TableEnvironment.getTableEnvironment(streamExecEnv) >>>> >>>> Best, >>>> Fabian >>>> >>>> 2018-08-02 0:10 GMT+02:00 Mich Talebzadeh <mich.talebza...@gmail.com>: >>>> >>>>> Hi, >>>>> >>>>> FYI, these are my imports >>>>> >>>>> import java.util.Properties >>>>> import java.util.Arrays >>>>> import org.apache.flink.api.common.functions.MapFunction >>>>> import >>>>> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment >>>>> import org.apache.flink.streaming.api.scala >>>>> import org.apache.flink.streaming.util.serialization.SimpleStringSchema >>>>> import org.apache.flink.table.api.TableEnvironment >>>>> import org.apache.flink.table.api.scala._ >>>>> import org.apache.flink.api.scala._ >>>>> import org.apache.kafka.clients.consumer.ConsumerConfig >>>>> import org.apache.kafka.clients.consumer.ConsumerRecord >>>>> import org.apache.kafka.clients.consumer.KafkaConsumer >>>>> import org.apache.flink.core.fs.FileSystem >>>>> import org.apache.flink.streaming.api.TimeCharacteristic >>>>> import org.slf4j.LoggerFactory >>>>> import >>>>> org.apache.flink.streaming.connectors.kafka.{FlinkKafkaConsumer011, >>>>> FlinkKafkaProducer011} >>>>> import java.util.Calendar >>>>> import java.util.Date >>>>> import java.text.DateFormat >>>>> import java.text.SimpleDateFormat >>>>> import org.apache.log4j.Logger >>>>> import org.apache.log4j.Level >>>>> import sys.process.stringSeqToProcess >>>>> import java.io.File >>>>> >>>>> And this is the simple code >>>>> >>>>> val properties = new Properties() >>>>> properties.setProperty("bootstrap.servers", bootstrapServers) >>>>> properties.setProperty("zookeeper.connect", zookeeperConnect) >>>>> properties.setProperty("group.id", flinkAppName) >>>>> properties.setProperty("auto.offset.reset", "latest") >>>>> val streamExecEnv = >>>>> StreamExecutionEnvironment.getExecutionEnvironment >>>>> val dataStream = streamExecEnv >>>>> .addSource(new FlinkKafkaConsumer011[String](topicsValue, new >>>>> SimpleStringSchema(), properties)) >>>>> val tableEnv = TableEnvironment.getTableEnvironment(dataStream) >>>>> tableEnv.registerDataStream("table1", dataStream, 'key, 'ticker, >>>>> 'timeissued, 'price) >>>>> >>>>> And this is the compilation error >>>>> >>>>> info] Compiling 1 Scala source to >>>>> /home/hduser/dba/bin/flink/md_streaming/target/scala-2.11/classes... >>>>> [error] >>>>> /home/hduser/dba/bin/flink/md_streaming/src/main/scala/myPackage/md_streaming.scala:138: >>>>> overloaded method value getTableEnvironment with alternatives: >>>>> [error] (executionEnvironment: >>>>> org.apache.flink.streaming.api.scala.StreamExecutionEnvironment)org.apache.flink.table.api.scala.StreamTableEnvironment >>>>> <and> >>>>> [error] (executionEnvironment: >>>>> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment)org.apache.flink.table.api.java.StreamTableEnvironment >>>>> <and> >>>>> [error] (executionEnvironment: >>>>> org.apache.flink.api.scala.ExecutionEnvironment)org.apache.flink.table.api.scala.BatchTableEnvironment >>>>> <and> >>>>> [error] (executionEnvironment: >>>>> org.apache.flink.api.java.ExecutionEnvironment)org.apache.flink.table.api.java.BatchTableEnvironment >>>>> [error] cannot be applied to >>>>> (org.apache.flink.streaming.api.datastream.DataStreamSource[String]) >>>>> [error] val tableEnv = >>>>> TableEnvironment.getTableEnvironment(dataStream) >>>>> [error] ^ >>>>> [error] one error found >>>>> [error] (compile:compileIncremental) Compilation failed >>>>> [error] Total time: 3 s, completed Aug 1, 2018 11:02:33 PM >>>>> Completed compiling >>>>> >>>>> which is really strange >>>>> >>>>> Dr Mich Talebzadeh >>>>> >>>>> >>>>> >>>>> LinkedIn * >>>>> https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw >>>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* >>>>> >>>>> >>>>> >>>>> http://talebzadehmich.wordpress.com >>>>> >>>>> >>>>> *Disclaimer:* Use it at your own risk. Any and all responsibility for >>>>> any loss, damage or destruction of data or any other property which may >>>>> arise from relying on this email's technical content is explicitly >>>>> disclaimed. The author will in no case be liable for any monetary damages >>>>> arising from such loss, damage or destruction. >>>>> >>>>> >>>>> >>>>> >>>>> On Wed, 1 Aug 2018 at 13:42, Fabian Hueske <fhue...@gmail.com> wrote: >>>>> >>>>>> Hi I think you are mixing Java and Scala dependencies. >>>>>> >>>>>> org.apache.flink.streaming.api.datastream.DataStream is the >>>>>> DataStream of the Java DataStream API. >>>>>> You should use the DataStream of the Scala DataStream API. >>>>>> >>>>>> Best, Fabian >>>>>> >>>>>> 2018-08-01 14:01 GMT+02:00 Mich Talebzadeh <mich.talebza...@gmail.com >>>>>> >: >>>>>> >>>>>>> Hi, >>>>>>> >>>>>>> I believed I tried Hequn's suggestion and tried again >>>>>>> >>>>>>> import org.apache.flink.table.api.Table >>>>>>> import org.apache.flink.table.api.TableEnvironment >>>>>>> >>>>>>> *import org.apache.flink.table.api.scala._* >>>>>>> Unfortunately I am still getting the same error! >>>>>>> >>>>>>> [info] Compiling 1 Scala source to >>>>>>> /home/hduser/dba/bin/flink/md_streaming/target/scala-2.11/classes... >>>>>>> [error] >>>>>>> /home/hduser/dba/bin/flink/md_streaming/src/main/scala/myPackage/md_streaming.scala:151: >>>>>>> overloaded method value fromDataStream with alternatives: >>>>>>> [error] [T](dataStream: >>>>>>> org.apache.flink.streaming.api.datastream.DataStream[T], fields: >>>>>>> String)org.apache.flink.table.api.Table <and> >>>>>>> [error] [T](dataStream: >>>>>>> org.apache.flink.streaming.api.datastream.DataStream[T])org.apache.flink.table.api.Table >>>>>>> [error] cannot be applied to >>>>>>> (org.apache.flink.streaming.api.datastream.DataStreamSource[String], >>>>>>> Symbol, Symbol, Symbol, Symbol) >>>>>>> [error] val table1: Table = tableEnv.fromDataStream(dataStream, >>>>>>> 'key, 'ticker, 'timeissued, 'price) >>>>>>> [error] ^ >>>>>>> [error] one error found >>>>>>> [error] (compile:compileIncremental) Compilation failed >>>>>>> [error] Total time: 3 s, completed Aug 1, 2018 12:59:44 PM >>>>>>> Completed compiling >>>>>>> >>>>>>> >>>>>>> Dr Mich Talebzadeh >>>>>>> >>>>>>> >>>>>>> >>>>>>> LinkedIn * >>>>>>> https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw >>>>>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* >>>>>>> >>>>>>> >>>>>>> >>>>>>> http://talebzadehmich.wordpress.com >>>>>>> >>>>>>> >>>>>>> *Disclaimer:* Use it at your own risk. Any and all responsibility >>>>>>> for any loss, damage or destruction of data or any other property which >>>>>>> may >>>>>>> arise from relying on this email's technical content is explicitly >>>>>>> disclaimed. The author will in no case be liable for any monetary >>>>>>> damages >>>>>>> arising from such loss, damage or destruction. >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> On Wed, 1 Aug 2018 at 10:03, Timo Walther <twal...@apache.org> >>>>>>> wrote: >>>>>>> >>>>>>>> If these two imports are the only imports that you added, then you >>>>>>>> did not follow Hequn's advice or the link that I sent you. >>>>>>>> >>>>>>>> You need to add the underscore imports to let Scala do its magic. >>>>>>>> >>>>>>>> Timo >>>>>>>> >>>>>>>> >>>>>>>> Am 01.08.18 um 10:28 schrieb Mich Talebzadeh: >>>>>>>> >>>>>>>> Hi Timo, >>>>>>>> >>>>>>>> These are my two flink table related imports >>>>>>>> >>>>>>>> import org.apache.flink.table.api.Table >>>>>>>> import org.apache.flink.table.api.TableEnvironment >>>>>>>> >>>>>>>> And these are my dependencies building with SBT >>>>>>>> >>>>>>>> libraryDependencies += "org.apache.hadoop" % "hadoop-core" % "1.2.1" >>>>>>>> libraryDependencies += "org.apache.hbase" % "hbase" % "1.2.6" >>>>>>>> libraryDependencies += "org.apache.hbase" % "hbase-client" % "1.2.6" >>>>>>>> libraryDependencies += "org.apache.hbase" % "hbase-common" % "1.2.6" >>>>>>>> libraryDependencies += "org.apache.hbase" % "hbase-server" % "1.2.6" >>>>>>>> libraryDependencies += "org.apache.flink" %% >>>>>>>> "flink-connector-kafka-0.11" % "1.5.0" >>>>>>>> libraryDependencies += "org.apache.flink" %% >>>>>>>> "flink-connector-kafka-base" % "1.5.0" >>>>>>>> libraryDependencies += "org.apache.flink" %% "flink-scala" % "1.5.0" >>>>>>>> libraryDependencies += "org.apache.kafka" % "kafka-clients" % >>>>>>>> "0.11.0.0" >>>>>>>> libraryDependencies += "org.apache.flink" %% "flink-streaming-java" >>>>>>>> % "1.5.0" % "provided" >>>>>>>> >>>>>>>> *libraryDependencies += "org.apache.flink" %% "flink-table" % >>>>>>>> "1.5.0" % "provided" *libraryDependencies += "org.apache.kafka" %% >>>>>>>> "kafka" % "0.11.0.0" >>>>>>>> >>>>>>>> There appears to be conflict somewhere that cause this error >>>>>>>> >>>>>>>> [info] Compiling 1 Scala source to >>>>>>>> /home/hduser/dba/bin/flink/md_streaming/target/scala-2.11/classes... >>>>>>>> [error] >>>>>>>> /home/hduser/dba/bin/flink/md_streaming/src/main/scala/myPackage/md_streaming.scala:152: >>>>>>>> overloaded method value fromDataStream with alternatives: >>>>>>>> [error] [T](dataStream: >>>>>>>> org.apache.flink.streaming.api.datastream.DataStream[T], fields: >>>>>>>> String)org.apache.flink.table.api.Table <and> >>>>>>>> [error] [T](dataStream: >>>>>>>> org.apache.flink.streaming.api.datastream.DataStream[T])org.apache.flink.table.api.Table >>>>>>>> [error] cannot be applied to >>>>>>>> (org.apache.flink.streaming.api.datastream.DataStreamSource[String], >>>>>>>> Symbol, Symbol, Symbol, Symbol) >>>>>>>> [error] val table1: Table = tableEnv.fromDataStream(dataStream, >>>>>>>> 'key, 'ticker, 'timeissued, 'price) >>>>>>>> [error] ^ >>>>>>>> [error] one error found >>>>>>>> [error] (compile:compileIncremental) Compilation failed >>>>>>>> >>>>>>>> Thanks >>>>>>>> >>>>>>>> >>>>>>>> Dr Mich Talebzadeh >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> LinkedIn * >>>>>>>> https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw >>>>>>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> http://talebzadehmich.wordpress.com >>>>>>>> >>>>>>>> >>>>>>>> *Disclaimer:* Use it at your own risk. Any and all responsibility >>>>>>>> for any loss, damage or destruction of data or any other property >>>>>>>> which may >>>>>>>> arise from relying on this email's technical content is explicitly >>>>>>>> disclaimed. The author will in no case be liable for any monetary >>>>>>>> damages >>>>>>>> arising from such loss, damage or destruction. >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Wed, 1 Aug 2018 at 09:17, Timo Walther <twal...@apache.org> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> Hi Mich, >>>>>>>>> >>>>>>>>> I would check you imports again [1]. This is a pure compiler issue >>>>>>>>> that is unrelated to your actual data stream. Also check your project >>>>>>>>> dependencies. >>>>>>>>> >>>>>>>>> Regards, >>>>>>>>> Timo >>>>>>>>> >>>>>>>>> [1] >>>>>>>>> https://ci.apache.org/projects/flink/flink-docs-master/dev/table/common.html#implicit-conversion-for-scala >>>>>>>>> >>>>>>>>> Am 01.08.18 um 09:30 schrieb Mich Talebzadeh: >>>>>>>>> >>>>>>>>> >>>>>>>>> Hi both, >>>>>>>>> >>>>>>>>> I added the import as Hequn suggested. >>>>>>>>> >>>>>>>>> My stream is very simple and consists of 4 values separated by "," >>>>>>>>> as below >>>>>>>>> >>>>>>>>> 05521df6-4ccf-4b2f-b874-eb27d461b305,IBM,2018-07-30T19:51:50,190.48 >>>>>>>>> >>>>>>>>> So this is what I have been trying to do >>>>>>>>> >>>>>>>>> Code >>>>>>>>> >>>>>>>>> val dataStream = streamExecEnv >>>>>>>>> .addSource(new FlinkKafkaConsumer011[String](topicsValue, >>>>>>>>> new SimpleStringSchema(), properties)) >>>>>>>>> // >>>>>>>>> // >>>>>>>>> val tableEnv = >>>>>>>>> TableEnvironment.getTableEnvironment(streamExecEnv) >>>>>>>>> val table1: Table = tableEnv.fromDataStream(dataStream, 'key, >>>>>>>>> 'ticker, 'timeissued, 'price) >>>>>>>>> >>>>>>>>> note those four columns in Table1 definition >>>>>>>>> >>>>>>>>> And this is the error being thrown >>>>>>>>> >>>>>>>>> [info] Compiling 1 Scala source to >>>>>>>>> /home/hduser/dba/bin/flink/md_streaming/target/scala-2.11/classes... >>>>>>>>> [error] >>>>>>>>> /home/hduser/dba/bin/flink/md_streaming/src/main/scala/myPackage/md_streaming.scala:152: >>>>>>>>> overloaded method value fromDataStream with alternatives: >>>>>>>>> [error] [T](dataStream: >>>>>>>>> org.apache.flink.streaming.api.datastream.DataStream[T], fields: >>>>>>>>> String)org.apache.flink.table.api.Table <and> >>>>>>>>> [error] [T](dataStream: >>>>>>>>> org.apache.flink.streaming.api.datastream.DataStream[T])org.apache.flink.table.api.Table >>>>>>>>> [error] cannot be applied to >>>>>>>>> (org.apache.flink.streaming.api.datastream.DataStreamSource[String], >>>>>>>>> Symbol, Symbol, Symbol, Symbol) >>>>>>>>> [error] val table1: Table = tableEnv.fromDataStream(dataStream, >>>>>>>>> 'key, 'ticker, 'timeissued, 'price) >>>>>>>>> [error] ^ >>>>>>>>> [error] one error found >>>>>>>>> [error] (compile:compileIncremental) Compilation failed >>>>>>>>> >>>>>>>>> I suspect dataStream may not be compatible with this operation? >>>>>>>>> >>>>>>>>> Regards, >>>>>>>>> >>>>>>>>> Dr Mich Talebzadeh >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> LinkedIn * >>>>>>>>> https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw >>>>>>>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> http://talebzadehmich.wordpress.com >>>>>>>>> >>>>>>>>> >>>>>>>>> *Disclaimer:* Use it at your own risk. Any and all responsibility >>>>>>>>> for any loss, damage or destruction of data or any other property >>>>>>>>> which may >>>>>>>>> arise from relying on this email's technical content is explicitly >>>>>>>>> disclaimed. The author will in no case be liable for any monetary >>>>>>>>> damages >>>>>>>>> arising from such loss, damage or destruction. >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On Wed, 1 Aug 2018 at 04:51, Hequn Cheng <chenghe...@gmail.com> >>>>>>>>> wrote: >>>>>>>>> >>>>>>>>>> Hi, Mich >>>>>>>>>> >>>>>>>>>> You can try adding "import org.apache.flink.table.api.scala._", >>>>>>>>>> so that the Symbol can be recognized as an Expression. >>>>>>>>>> >>>>>>>>>> Best, Hequn >>>>>>>>>> >>>>>>>>>> On Wed, Aug 1, 2018 at 6:16 AM, Mich Talebzadeh < >>>>>>>>>> mich.talebza...@gmail.com> wrote: >>>>>>>>>> >>>>>>>>>>> Hi, >>>>>>>>>>> >>>>>>>>>>> I am following this example >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/table/common.html#integration-with-datastream-and-dataset-api >>>>>>>>>>> >>>>>>>>>>> This is my dataStream which is built on a Kafka topic >>>>>>>>>>> >>>>>>>>>>> // >>>>>>>>>>> //Create a Kafka consumer >>>>>>>>>>> // >>>>>>>>>>> val dataStream = streamExecEnv >>>>>>>>>>> .addSource(new FlinkKafkaConsumer011[String](topicsValue, >>>>>>>>>>> new SimpleStringSchema(), properties)) >>>>>>>>>>> // >>>>>>>>>>> // >>>>>>>>>>> val tableEnv = >>>>>>>>>>> TableEnvironment.getTableEnvironment(streamExecEnv) >>>>>>>>>>> val table1: Table = tableEnv.fromDataStream(dataStream, 'key, >>>>>>>>>>> 'ticker, 'timeissued, 'price) >>>>>>>>>>> >>>>>>>>>>> While compiling it throws this error >>>>>>>>>>> >>>>>>>>>>> [error] >>>>>>>>>>> /home/hduser/dba/bin/flink/md_streaming/src/main/scala/myPackage/md_streaming.scala:169: >>>>>>>>>>> overloaded method value fromDataStream with alternatives: >>>>>>>>>>> [error] [T](dataStream: >>>>>>>>>>> org.apache.flink.streaming.api.datastream.DataStream[T], fields: >>>>>>>>>>> String)org.apache.flink.table.api.Table <and> >>>>>>>>>>> [error] [T](dataStream: >>>>>>>>>>> org.apache.flink.streaming.api.datastream.DataStream[T])org.apache.flink.table.api.Table >>>>>>>>>>> [error] cannot be applied to >>>>>>>>>>> (org.apache.flink.streaming.api.datastream.DataStreamSource[String], >>>>>>>>>>> Symbol, Symbol, Symbol, Symbol) >>>>>>>>>>> [error] val table1: Table = >>>>>>>>>>> tableEnv.fromDataStream(dataStream, 'key, 'ticker, 'timeissued, >>>>>>>>>>> 'price) >>>>>>>>>>> [error] ^ >>>>>>>>>>> [error] one error found >>>>>>>>>>> [error] (compile:compileIncremental) Compilation failed >>>>>>>>>>> >>>>>>>>>>> The topic is very simple, it is comma separated prices. I tried >>>>>>>>>>> mapFunction and flatMap but neither worked! >>>>>>>>>>> >>>>>>>>>>> Thanks, >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Dr Mich Talebzadeh >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> LinkedIn * >>>>>>>>>>> https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw >>>>>>>>>>> <https://www.linkedin.com/profile/view?id=AAEAAAAWh2gBxianrbJd6zP6AcPCCdOABUrV8Pw>* >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> http://talebzadehmich.wordpress.com >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> *Disclaimer:* Use it at your own risk. Any and all >>>>>>>>>>> responsibility for any loss, damage or destruction of data or any >>>>>>>>>>> other >>>>>>>>>>> property which may arise from relying on this email's technical >>>>>>>>>>> content is >>>>>>>>>>> explicitly disclaimed. The author will in no case be liable for any >>>>>>>>>>> monetary damages arising from such loss, damage or destruction. >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>> >>>> >>
