You can try with this:
import org.apache.flink.api.java.ExecutionEnvironment;
import org.joda.time.DateTime;
import de.javakaffee.kryoserializers.jodatime.JodaDateTimeSerializer;
public class DateTimeError {
public static void main(String[] args) throws Exception {
ExecutionEnvironment env =
ExecutionEnvironment.getExecutionEnvironment();
// env.registerTypeWithKryoSerializer(DateTime.class,
JodaDateTimeSerializer.class);
env.fromElements(DateTime.now(), DateTime.now()).print();
}
}
Without the commented row you get:
Exception in thread "main" java.lang.NullPointerException
at
org.joda.time.tz.CachedDateTimeZone.getInfo(CachedDateTimeZone.java:143)
at
org.joda.time.tz.CachedDateTimeZone.getOffset(CachedDateTimeZone.java:103)
at
org.joda.time.format.DateTimeFormatter.printTo(DateTimeFormatter.java:722)
at
org.joda.time.format.DateTimeFormatter.printTo(DateTimeFormatter.java:535)
at
org.joda.time.format.DateTimeFormatter.print(DateTimeFormatter.java:671)
at org.joda.time.base.AbstractInstant.toString(AbstractInstant.java:424)
at
org.joda.time.base.AbstractDateTime.toString(AbstractDateTime.java:314)
at java.lang.String.valueOf(String.java:2994)
at java.io.PrintStream.println(PrintStream.java:821)
at org.apache.flink.api.java.DataSet.print(DataSet.java:1607)
Thanks for the support,
Flavio
On Mon, May 23, 2016 at 4:17 PM, Maximilian Michels <m...@apache.org> wrote:
> What error do you get when you don't register the Kryo serializer?
>
> On Mon, May 23, 2016 at 11:57 AM, Flavio Pompermaier
> <pomperma...@okkam.it> wrote:
> > With this last settings I was able to terminate the job the second time I
> > retried to run it, without restarting the cluster..
> > If I don't register the serializer for DateTime the job doesn't start at
> all
> > (from Flink 1.x you have to register it [1]).
> > I can't understand what's wrong :(
> >
> > [1]
> >
> https://cwiki.apache.org/confluence/display/FLINK/Migration+Guide%3A+0.10.x+to+1.0.x
> >
> > Best,
> > Flavio
>
--
Flavio Pompermaier
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