Hi Jark Wu,
Thanks for your answer,
Here is what I have so far
import java.util.Properties
import org.apache.flink.table.descriptors.Json
import org.apache.flink.table.descriptors.{Kafka, Schema}
import org.apache.flink.streaming.connectors.kafka.{FlinkKafkaConsumer,
FlinkKafkaConsumerBase, FlinkKafkaProducer, KafkaSerializationSchema}
import org.apache.flink.streaming.api.scala._
import org.apache.flink.api.common.serialization.{SimpleStringEncoder,
SimpleStringSchema}
import org.apache.flink.table.api.scala.StreamTableEnvironment
import org.apache.flink.table.api.{EnvironmentSettings, Table,
TableEnvironment, Types}
import org.apache.flink.table.sources
import org.apache.flink.table.sinks
//import
org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink
object FlinkToSQL extends App{
val b_servers = "..."
val zk = "..."
val properties = new Properties()
properties.setProperty("bootstrap.servers",b_servers)
properties.setProperty("zookeeper.connect",zk)
properties.setProperty("group.id", "very_small_test")
.... more properties
val kafkaSource: FlinkKafkaConsumerBase[String] = new
FlinkKafkaConsumer[String]("very_small_test", new
SimpleStringSchema(), properties).setStartFromTimestamp(0)
val settings =
EnvironmentSettings.newInstance().useOldPlanner().inStreamingMode().build()
val env = StreamExecutionEnvironment.getExecutionEnvironment
val tableEnv = StreamTableEnvironment.create(env, settings)
val schema = new Schema().field("fullVisitorId",Types.STRING)
.field("eventID",Types.STRING)
.field("CustomDimensions",Types.STRING)
.field("page",Types.STRING)
tableEnv.connect(new Kafka()
.version("universal")
.topic("very_small_test")
.properties(properties)
.startFromEarliest()
)
.withFormat(
new Json()
.failOnMissingField(false)
.deriveSchema()
)
.withSchema(schema)
.inAppendMode()
.registerTableSource("sql_table")
tableEnv.connect(
new Kafka()
.properties(properties)
.topic("mafh-output")
.sinkPartitionerRoundRobin()
).withFormat(
new Json()
.failOnMissingField(false)
.deriveSchema()
)
.withSchema(schema)
.inAppendMode()
.registerTableSink("sql_sink")
val sqlStatement = "SELECT * from sql_table"
val result:Table = tableEnv.sqlQuery(sqlStatement)
result.insertInto("sql_sink");
result.printSchema()
System.out.println("======================= " + result.toString)
tableEnv.execute("SQL test")
}
Here is my error message:
The program finished with the following exception:
org.apache.flink.client.program.ProgramInvocationException: The main
method caused an error: findAndCreateTableSource failed.
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:593)
at
org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:438)
at
org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:274)
at
org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:746)
at
org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:273)
at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:205)
at
org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1010)
at
org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1083)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1844)
at
org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1083)
Caused by: org.apache.flink.table.api.TableException:
findAndCreateTableSource failed.
at
org.apache.flink.table.factories.TableFactoryUtil.findAndCreateTableSource(TableFactoryUtil.java:67)
at
org.apache.flink.table.factories.TableFactoryUtil.findAndCreateTableSource(TableFactoryUtil.java:54)
at
org.apache.flink.table.descriptors.ConnectTableDescriptor.registerTableSource(ConnectTableDescriptor.java:69)
at FlinkToSQL$.delayedEndpoint$FlinkToSQL$1(FlinkToSQL.scala:65)
at FlinkToSQL$delayedInit$body.apply(FlinkToSQL.scala:15)
at scala.Function0$class.apply$mcV$sp(Function0.scala:34)
at
scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
at scala.App$$anonfun$main$1.apply(App.scala:76)
at scala.App$$anonfun$main$1.apply(App.scala:76)
at scala.collection.immutable.List.foreach(List.scala:392)
at
scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:35)
at scala.App$class.main(App.scala:76)
at FlinkToSQL$.main(FlinkToSQL.scala:15)
at FlinkToSQL.main(FlinkToSQL.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:576)
... 12 more
Caused by: org.apache.flink.table.api.NoMatchingTableFactoryException:
Could not find a suitable table factory for
'org.apache.flink.table.factories.TableSourceFactory' in
the classpath.
Reason: No context matches.
The following properties are requested:
connector.properties.0.key=security.protocol
connector.properties.0.value=SSL
connector.properties.1.key=key.deserializer
connector.properties.1.value=org.apache.kafka.common.serialization.ByteArrayDeserializer
connector.properties.2.key=value.deserializer
connector.properties.2.value=org.apache.kafka.common.serialization.ByteArrayDeserializer
connector.properties.3.key=zookeeper.connect
connector.properties.3.value=z-1.realtime-tracking-poc.3ubjky.c3.kafka.eu-west-1.amazonaws.com:2181,z-2.realtime-tracking-poc.3ubjky.c3.kafka.eu-west-1.amazonaws.com:2181,z-3.realtime-tracking-poc.3ubjky.c3.kafka.eu-west-1.amazonaws.com:2181
connector.properties.4.key=ssl.endpoint.identification.algorithm
connector.properties.4.value=
connector.properties.5.key=group.id
connector.properties.5.value=very_small_test
connector.properties.6.key=bootstrap.servers
connector.properties.6.value=b-2.realtime-tracking-poc.3ubjky.c3.kafka.eu-west-1.amazonaws.com:9094,b-1.realtime-tracking-poc.3ubjky.c3.kafka.eu-west-1.amazonaws.com:9094,b-3.realtime-tracking-poc.3ubjky.c3.kafka.eu-west-1.amazonaws.com:9094
connector.property-version=1
connector.startup-mode=earliest-offset
connector.topic=very_small_test
connector.type=kafka
connector.version=universal
format.derive-schema=true
format.fail-on-missing-field=false
format.property-version=1
format.type=jsonschema.0.name=fullVisitorId
schema.0.type=VARCHARschema.1.name=eventID
schema.1.type=VARCHARschema.2.name=CustomDimensions
schema.2.type=VARCHARschema.3.name=page
schema.3.type=VARCHAR
update-mode=append
The following factories have been considered:
org.apache.flink.table.catalog.GenericInMemoryCatalogFactory
org.apache.flink.table.sources.CsvBatchTableSourceFactory
org.apache.flink.table.sources.CsvAppendTableSourceFactory
org.apache.flink.table.sinks.CsvBatchTableSinkFactory
org.apache.flink.table.sinks.CsvAppendTableSinkFactory
org.apache.flink.table.planner.StreamPlannerFactory
org.apache.flink.table.executor.StreamExecutorFactory
org.apache.flink.table.planner.delegation.BlinkPlannerFactory
org.apache.flink.table.planner.delegation.BlinkExecutorFactory
at
org.apache.flink.table.factories.TableFactoryService.filterByContext(TableFactoryService.java:283)
at
org.apache.flink.table.factories.TableFactoryService.filter(TableFactoryService.java:191)
at
org.apache.flink.table.factories.TableFactoryService.findSingleInternal(TableFactoryService.java:144)
at
org.apache.flink.table.factories.TableFactoryService.find(TableFactoryService.java:97)
at
org.apache.flink.table.factories.TableFactoryUtil.findAndCreateTableSource(TableFactoryUtil.java:64)
... 30 more
Command exiting with ret '1'
Den lør. 16. maj 2020 kl. 04.57 skrev Jark Wu <[email protected]>:
> Hi,
>
> Could you share the SQL DDL and the full exception message? It might be
> you are using the wrong `connector.version` or other options.
>
> Best,
> Jark
>
> On Fri, 15 May 2020 at 20:14, Martin Frank Hansen <[email protected]>
> wrote:
>
>> Hi,
>>
>> I am trying to connect to kafka through flink, but having some difficulty
>> getting the right table-factory-source.
>>
>> I currently get the error: NoMatchingTableFactoryException: Could not
>> find a suitable table factory for
>> 'org.apache.flink.table.factories.TableSourceFactory' in the classpath. my
>> sbt file looks like this:
>>
>> name := "writeToSQL"
>>
>> version := "0.1"
>>
>> scalaVersion := "2.11.12"
>> val flinkVersion = "1.9.1"
>> val hadoopVersion = "3.0.0"
>>
>> libraryDependencies ++= Seq(
>>
>> "org.slf4j" % "slf4j-api" % "1.7.15" % "runtime",
>> "org.apache.flink" %% "flink-connector-kafka" % flinkVersion % "compile",
>> "org.apache.flink" %% "flink-sql-connector-kafka" % flinkVersion %
>> "compile",
>> "org.apache.flink" %% "flink-scala" % flinkVersion % "provided",
>> "org.apache.flink" %% "flink-table-api-scala-bridge" % flinkVersion %
>> "provided",
>> "org.apache.flink" %% "flink-table-planner-blink" % flinkVersion %
>> "provided",
>> "org.apache.flink" %% "flink-table-planner" % flinkVersion % "provided",
>> "org.apache.flink" % "flink-table-common" % flinkVersion % "provided",
>> "org.apache.flink" %% "flink-streaming-scala" % flinkVersion % "provided",
>> "org.apache.flink" % "flink-table" % flinkVersion % "compile",
>> "org.apache.flink" % "flink-json" % flinkVersion % "compile",
>> "org.slf4j" % "slf4j-log4j12" % "1.7.25" % "runtime"
>> )
>>
>> assemblyMergeStrategy in assembly := {
>> case path if path.contains("META-INF/services") => MergeStrategy.concat
>> case PathList("META-INF", _*) => MergeStrategy.discard
>> case _ => MergeStrategy.first
>> }
>>
>>
>> From the documentation
>> https://ci.apache.org/projects/flink/flink-docs-release-1.10/dev/table/sourceSinks.html#define-a-tablefactory
>> I
>> can see what is missing, but I do not know how to solve it.
>>
>> The documentation says the following:
>> Define a TableFactory
>> <https://ci.apache.org/projects/flink/flink-docs-release-1.10/dev/table/sourceSinks.html#define-a-tablefactory>
>>
>> A TableFactory allows to create different table-related instances from
>> string-based properties. All available factories are called for matching to
>> the given set of properties and a corresponding factory class.
>>
>> Factories leverage Java’s Service Provider Interfaces (SPI)
>> <https://docs.oracle.com/javase/tutorial/sound/SPI-intro.html> for
>> discovering. This means that every dependency and JAR file should contain a
>> file org.apache.flink.table.factories.TableFactory in the
>> META_INF/services resource directory that lists all available table
>> factories that it provides.
>>
>> But how do I do that? I thought the sbt-file would take care of this.
>>
>> Any help is highly appreciated!
>>
>> Best regards
>>
>> Martin Frank Hansen
>>
>>
>>
--
Martin Frank Hansen
Data Engineer
Digital Service
M: +45 25 57 14 18
E: [email protected]
Pilestræde 34 | DK-1147 København K | T: +45 33 75 75 75 |
berlingskemedia.dk
