I don't know any workaround. But maybe Avro should be avoided altogether for your requirements.
What is the data that you want to move between operations? On Thu, Dec 4, 2014 at 7:13 PM, Paris Carbone <par...@kth.se> wrote: > Hello, > > It seems that Avro fails to serialise POJOs that contain non-String or > stringable > keys<https://apache.googlesource.com/avro/+/40650540dcb8ca8a6b6235de5cdd36c0f6e2eb31/lang/java/avro/src/main/java/org/apache/avro/reflect/ReflectData.java#361>. > eg. in the example > here<https://github.com/senorcarbone/incubator-flink/blob/72b6798b50396c962fc6cea20a2bcdd51eec06f4/flink-examples/flink-java-examples/src/main/java/org/apache/flink/examples/java/testing/LongMapKeyIssueExample.java> > I get a compiler exception caused by: > > org.apache.avro.AvroTypeException: Map key class not String: class > java.lang.Long > > Is there any known workaround/recommendation for this except for using String > keys? > I need this for a use case of low latency data-intensive streaming so String > conversions should be avoided. > > Paris > >
