Huang Xingbo created FLINK-15168:
------------------------------------
Summary: Exception is thrown when using kafka source connector
with flink planner
Key: FLINK-15168
URL: https://issues.apache.org/jira/browse/FLINK-15168
Project: Flink
Issue Type: Bug
Components: Table SQL / Legacy Planner
Affects Versions: 1.10.0
Reporter: Huang Xingbo
when running the following case using kafka as source connector in flink
planner, we will get a RuntimeException:
{code:java}
StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment();
env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime);
env.setParallelism(1);StreamTableEnvironment tEnv =
StreamTableEnvironment.create(env);tEnv.connect(new Kafka()
.version("0.11")
.topic("user")
.startFromEarliest()
.property("zookeeper.connect", "localhost:2181")
.property("bootstrap.servers", "localhost:9092"))
.withFormat(new Json()
.failOnMissingField(true)
.jsonSchema("{" +
" type: 'object'," +
" properties: {" +
" a: {" +
" type: 'string'" +
" }," +
" b: {" +
" type: 'string'" +
" }," +
" c: {" +
" type: 'string'" +
" }," +
" time: {" +
" type: 'string'," +
" format: 'date-time'" +
" }" +
" }" +
"}"
))
.withSchema(new Schema()
.field("rowtime", Types.SQL_TIMESTAMP)
.rowtime(new Rowtime()
.timestampsFromField("time")
.watermarksPeriodicBounded(60000))
.field("a", Types.STRING)
.field("b", Types.STRING)
.field("c", Types.STRING))
.inAppendMode()
.registerTableSource("source");Table t =
tEnv.scan("source").select("a");tEnv.toAppendStream(t, Row.class).print();
tEnv.execute("test");
{code}
The RuntimeException detail:
{code:java}
Exception in thread "main" java.lang.RuntimeException: Error while applying
rule PushProjectIntoTableSourceScanRule, args
[rel#26:FlinkLogicalCalc.LOGICAL(input=RelSubset#25,expr#0..3={inputs},a=$t1),
Scan(table:[default_catalog, default_database, source], fields:(rowtime, a, b,
c), source:Kafka011TableSource(rowtime, a, b, c))]Exception in thread "main"
java.lang.RuntimeException: Error while applying rule
PushProjectIntoTableSourceScanRule, args
[rel#26:FlinkLogicalCalc.LOGICAL(input=RelSubset#25,expr#0..3={inputs},a=$t1),
Scan(table:[default_catalog, default_database, source], fields:(rowtime, a, b,
c), source:Kafka011TableSource(rowtime, a, b, c))] at
org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:235)
at
org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:631)
at org.apache.calcite.tools.Programs$RuleSetProgram.run(Programs.java:327) at
org.apache.flink.table.plan.Optimizer.runVolcanoPlanner(Optimizer.scala:280) at
org.apache.flink.table.plan.Optimizer.optimizeLogicalPlan(Optimizer.scala:199)
at
org.apache.flink.table.plan.StreamOptimizer.optimize(StreamOptimizer.scala:66)
at
org.apache.flink.table.planner.StreamPlanner.translateToType(StreamPlanner.scala:389)
at
org.apache.flink.table.planner.StreamPlanner.org$apache$flink$table$planner$StreamPlanner$$translate(StreamPlanner.scala:180)
at
org.apache.flink.table.planner.StreamPlanner$$anonfun$translate$1.apply(StreamPlanner.scala:117)
at
org.apache.flink.table.planner.StreamPlanner$$anonfun$translate$1.apply(StreamPlanner.scala:117)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at scala.collection.Iterator$class.foreach(Iterator.scala:891) at
scala.collection.AbstractIterator.foreach(Iterator.scala:1334) at
scala.collection.IterableLike$class.foreach(IterableLike.scala:72) at
scala.collection.AbstractIterable.foreach(Iterable.scala:54) at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at
scala.collection.AbstractTraversable.map(Traversable.scala:104) at
org.apache.flink.table.planner.StreamPlanner.translate(StreamPlanner.scala:117)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toDataStream(StreamTableEnvironmentImpl.java:351)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:259)
at
org.apache.flink.table.api.java.internal.StreamTableEnvironmentImpl.toAppendStream(StreamTableEnvironmentImpl.java:250)
at
org.apache.flink.table.api.example.batch.JavaBatchWordCount.main(JavaBatchWordCount.java:64)Caused
by: org.apache.flink.table.api.ValidationException: Rowtime field 'rowtime'
has invalid type LocalDateTime. Rowtime attributes must be of type Timestamp.
at
org.apache.flink.table.sources.TableSourceUtil$$anonfun$3.apply(TableSourceUtil.scala:114)
at
org.apache.flink.table.sources.TableSourceUtil$$anonfun$3.apply(TableSourceUtil.scala:92)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
at
scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186) at
scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at
scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186) at
org.apache.flink.table.sources.TableSourceUtil$.computeIndexMapping(TableSourceUtil.scala:92)
at
org.apache.flink.table.sources.TableSourceUtil$.getPhysicalIndexes(TableSourceUtil.scala:307)
at
org.apache.flink.table.plan.rules.logical.PushProjectIntoTableSourceScanRule.onMatch(PushProjectIntoTableSourceScanRule.scala:46)
at
org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:208)
... 22 more
{code}
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