Yes, these Types definition are general. As a user/developer, I would support
“loosen it for usability”. If not, may add some explanation about JSON.
Original Message
Sender: Jark Wu<imj...@gmail.com>
Recipient: Outlook<niyanc...@outlook.com>; Dawid
Wysakowicz<dwysakow...@apache.org>
Cc: godfrey he<godfre...@gmail.com>; Leonard Xu<xbjt...@gmail.com>;
user<user@flink.apache.org>
Date: Wednesday, Feb 26, 2020 09:55
Subject: Re: TIME/TIMESTAMP parse in Flink TABLE/SQL API
Hi Outlook,
The explanation in DataTypes is correct, it is compliant to SQL standard. The
problem is that JsonRowDeserializationSchema only support RFC-3339.
On the other hand, CsvRowDeserializationSchema supports to parse "2019-07-09
02:02:00.040".
So the question is shall we insist on the RFC-3339 "standard"? Shall we loosen
it for usability?
What do you think @Dawid Wysakowicz ?
Best,
Jark
On Wed, 26 Feb 2020 at 09:29, Outlook <niyanc...@outlook.com> wrote:
Thanks Godfrey and Leonard, I tried your answers, result is OK.
BTW, I think if only accept such format for a long time, the TIME and
TIMESTAMP methods' doc in `org.apache.flink.table.api.DataTypes` may be better
to update,
because the document now is not what the method really support. For example,
```
/**
* Data type of a time WITHOUT time zone {@code TIME} with no fractional
seconds by default.
*
* <p>An instance consists of {@code hour:minute:second} with up to second
precision
* and values ranging from {@code 00:00:00} to {@code 23:59:59}.
*
* <p>Compared to the SQL standard, leap seconds (23:59:60 and 23:59:61) are
not supported as the
* semantics are closer to {@link java.time.LocalTime}. A time WITH time zone
is not provided.
*
* @see #TIME(int)
* @see TimeType
*/
public static DataType TIME() {
return new AtomicDataType(new TimeType());
}```
Thanks again.
Original Message
Sender: Leonard Xu<xbjt...@gmail.com>
Recipient: godfrey he<godfre...@gmail.com>
Cc: Outlook<niyanc...@outlook.com>; user<user@flink.apache.org>
Date: Tuesday, Feb 25, 2020 22:56
Subject: Re: TIME/TIMESTAMP parse in Flink TABLE/SQL API
Hi，Outlook
Godfrey is right, you should follow the json format[1] when you parse your json
message.
You can use following code to produce a json data-time String.
```
Long time = System.currentTimeMillis();
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
Date date = new Date(time);
String jsonSchemaDate = dateFormat.format(date);
```
[1]
https://json-schema.org/understanding-json-schema/reference/string.html#dates-and-times
在 2020年2月25日，22:15，godfrey he <godfre...@gmail.com> 写道：
hi, I find that JsonRowDeserializationSchema only supports date-time with
timezone according to RFC 3339. So you need add timezone to time data (like
14:02:00Z) and timestamp data(2019-07-09T02:02:00.040Z). Hope it can help you.
Bests,
godfrey
Outlook <niyanc...@outlook.com> 于2020年2月25日周二 下午5:49写道：
By the way, my flink version is 1.10.0.
Original Message
Sender: Outlook<niyanc...@outlook.com>
Recipient: user<user@flink.apache.org>
Date: Tuesday, Feb 25, 2020 17:43
Subject: TIME/TIMESTAMP parse in Flink TABLE/SQL API
Hi all,
I read json data from kafka, and print to console. When I do this, some error
occurs when time/timestamp deserialization.
json data in Kafka:
```
{
"server_date": "2019-07-09",
"server_time": "14:02:00",
"reqsndtime_c": "2019-07-09 02:02:00.040"
}
```
flink code:
```
bsTableEnv.connect(
new Kafka()
.version("universal")
.topic("xxx")
.property("bootstrap.servers", "localhost:9092")
.property("zookeeper.connect", "localhost:2181")
.property("group.id", "g1")
.startFromEarliest()
).withFormat(
new Json()
.failOnMissingField(false)
).withSchema(
new Schema()
.field("server_date", DataTypes.DATE())
.field("server_time", DataTypes.TIME())
.field("reqsndtime_c", DataTypes.TIMESTAMP(3))
).inAppendMode()
.createTemporaryTable("xxx”);
```
server_date with format is ok, but server_time with DataTypes.DATE() and
reqsndtime_c with DataTypes.TIMESTAMP(3) cause error. If I change them to
DataTypes.STRING(), everything will be OK.
Error message:
```
Exception in thread "main" java.util.concurrent.ExecutionException:
org.apache.flink.client.program.ProgramInvocationException: Job failed (JobID:
395d1ba3d41f92734d4ef25aa5f9b4a1)
at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
at
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1640)
at
org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:74)
at
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1620)
at
org.apache.flink.table.planner.delegation.StreamExecutor.execute(StreamExecutor.java:42)
at
org.apache.flink.table.api.internal.TableEnvironmentImpl.execute(TableEnvironmentImpl.java:643)
at cn.com.agree.Main.main(Main.java:122)
Caused by: org.apache.flink.client.program.ProgramInvocationException: Job
failed (JobID: 395d1ba3d41f92734d4ef25aa5f9b4a1)
at
org.apache.flink.client.deployment.ClusterClientJobClientAdapter.lambda$null$6(ClusterClientJobClientAdapter.java:112)
at java.util.concurrent.CompletableFuture.uniApply(CompletableFuture.java:602)
at
java.util.concurrent.CompletableFuture$UniApply.tryFire(CompletableFuture.java:577)
at
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
at java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
at
org.apache.flink.runtime.concurrent.FutureUtils$1.onComplete(FutureUtils.java:874)
at akka.dispatch.OnComplete.internal(Future.scala:264)
at akka.dispatch.OnComplete.internal(Future.scala:261)
at akka.dispatch.japi$CallbackBridge.apply(Future.scala:191)
at akka.dispatch.japi$CallbackBridge.apply(Future.scala:188)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36)
at
org.apache.flink.runtime.concurrent.Executors$DirectExecutionContext.execute(Executors.java:74)
at scala.concurrent.impl.CallbackRunnable.executeWithValue(Promise.scala:44)
at scala.concurrent.impl.Promise$DefaultPromise.tryComplete(Promise.scala:252)
at akka.pattern.PromiseActorRef.$bang(AskSupport.scala:572)
at
akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:22)
at
akka.pattern.PipeToSupport$PipeableFuture$$anonfun$pipeTo$1.applyOrElse(PipeToSupport.scala:21)
at scala.concurrent.Future$$anonfun$andThen$1.apply(Future.scala:436)
at scala.concurrent.Future$$anonfun$andThen$1.apply(Future.scala:435)
at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:36)
at
akka.dispatch.BatchingExecutor$AbstractBatch.processBatch(BatchingExecutor.scala:55)
at
akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply$mcV$sp(BatchingExecutor.scala:91)
at
akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply(BatchingExecutor.scala:91)
at
akka.dispatch.BatchingExecutor$BlockableBatch$$anonfun$run$1.apply(BatchingExecutor.scala:91)
at scala.concurrent.BlockContext$.withBlockContext(BlockContext.scala:72)
at akka.dispatch.BatchingExecutor$BlockableBatch.run(BatchingExecutor.scala:90)
at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:40)
at
akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(ForkJoinExecutorConfigurator.scala:44)
at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
at
akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution
failed.
at
org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:147)
at
org.apache.flink.client.deployment.ClusterClientJobClientAdapter.lambda$null$6(ClusterClientJobClientAdapter.java:110)
... 31 more
Caused by: org.apache.flink.runtime.JobException: Recovery is suppressed by
NoRestartBackoffTimeStrategy
at
org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:110)
at
org.apache.flink.runtime.executiongraph.failover.flip1.ExecutionFailureHandler.getFailureHandlingResult(ExecutionFailureHandler.java:76)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.handleTaskFailure(DefaultScheduler.java:192)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.maybeHandleTaskFailure(DefaultScheduler.java:186)
at
org.apache.flink.runtime.scheduler.DefaultScheduler.updateTaskExecutionStateInternal(DefaultScheduler.java:180)
at
org.apache.flink.runtime.scheduler.SchedulerBase.updateTaskExecutionState(SchedulerBase.java:484)
at
org.apache.flink.runtime.jobmaster.JobMaster.updateTaskExecutionState(JobMaster.java:380)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcInvocation(AkkaRpcActor.java:279)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleRpcMessage(AkkaRpcActor.java:194)
at
org.apache.flink.runtime.rpc.akka.FencedAkkaRpcActor.handleRpcMessage(FencedAkkaRpcActor.java:74)
at
org.apache.flink.runtime.rpc.akka.AkkaRpcActor.handleMessage(AkkaRpcActor.java:152)
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:26)
at akka.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:21)
at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:123)
at akka.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:21)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:170)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:171)
at akka.actor.Actor$class.aroundReceive(Actor.scala:517)
at akka.actor.AbstractActor.aroundReceive(AbstractActor.scala:225)
at akka.actor.ActorCell.receiveMessage(ActorCell.scala:592)
at akka.actor.ActorCell.invoke(ActorCell.scala:561)
at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:258)
at akka.dispatch.Mailbox.run(Mailbox.scala:225)
at akka.dispatch.Mailbox.exec(Mailbox.scala:235)
... 4 more
Caused by: java.io.IOException: Failed to deserialize JSON object.
at
org.apache.flink.formats.json.JsonRowDeserializationSchema.deserialize(JsonRowDeserializationSchema.java:133)
at
org.apache.flink.formats.json.JsonRowDeserializationSchema.deserialize(JsonRowDeserializationSchema.java:76)
at
org.apache.flink.streaming.connectors.kafka.internals.KafkaDeserializationSchemaWrapper.deserialize(KafkaDeserializationSchemaWrapper.java:45)
at
org.apache.flink.streaming.connectors.kafka.internal.KafkaFetcher.runFetchLoop(KafkaFetcher.java:140)
at
org.apache.flink.streaming.connectors.kafka.FlinkKafkaConsumerBase.run(FlinkKafkaConsumerBase.java:715)
at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:100)
at
org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:63)
at
org.apache.flink.streaming.runtime.tasks.SourceStreamTask$LegacySourceFunctionThread.run(SourceStreamTask.java:196)
Caused by: java.time.format.DateTimeParseException: Text '14:02:00' could not
be parsed at index 8
at
java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:1949)
at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1777)
at
org.apache.flink.formats.json.JsonRowDeserializationSchema.convertToLocalTime(JsonRowDeserializationSchema.java:390)
at
org.apache.flink.formats.json.JsonRowDeserializationSchema.lambda$wrapIntoNullableConverter$d586c97$1(JsonRowDeserializationSchema.java:236)
at
org.apache.flink.formats.json.JsonRowDeserializationSchema.convertField(JsonRowDeserializationSchema.java:439)
at
org.apache.flink.formats.json.JsonRowDeserializationSchema.lambda$assembleRowConverter$77f7700$1(JsonRowDeserializationSchema.java:418)
at
org.apache.flink.formats.json.JsonRowDeserializationSchema.lambda$wrapIntoNullableConverter$d586c97$1(JsonRowDeserializationSchema.java:236)
at
org.apache.flink.formats.json.JsonRowDeserializationSchema.deserialize(JsonRowDeserializationSchema.java:131)
... 7 more
Process finished with exit code 1
```
reqsndtime_c with DataTypes.TIMESTAMP(3) has similar exception. I see the doc,
DataTypes.TIME() value range is from {@code 00:00:00} to {@code 23:59:59} ,
DataTypes.TIMESTAMP value range is from {@code 0000-01-01 00:00:00.000000000} to
* {@code 9999-12-31 23:59:59.999999999}. And my value is in the range, I don’t
know why. And I see this may be bug in java 8, I change jdk to 11,
error still occurs.
Can someone give me some help, thanks in advance.
