crunch-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Tyler Kohn (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CRUNCH-540) AvroReflectDeepCopier not serializable (but crunch is trying!)
Date Tue, 07 Jul 2015 20:57:04 GMT
Tyler Kohn created CRUNCH-540:
---------------------------------

             Summary: AvroReflectDeepCopier not serializable (but crunch is trying!)
                 Key: CRUNCH-540
                 URL: https://issues.apache.org/jira/browse/CRUNCH-540
             Project: Crunch
          Issue Type: Bug
          Components: Core
    Affects Versions: 0.12.0, 0.11.0
            Reporter: Tyler Kohn
            Assignee: Josh Wills



When I try to use avro objects in a crunch job and it uses reflect to generate the schema
crunch tries to verify the serialization of the entire ptype object which includes AvroReflectDeepCopier
and throws the following exception:

java.lang.IllegalStateException:  named 'null' cannot be serialized
	at org.apache.crunch.impl.mem.collect.MemCollection.verifySerializable(MemCollection.java:104)
	at org.apache.crunch.impl.mem.collect.MemCollection.parallelDo(MemCollection.java:123)
	at org.apache.crunch.impl.mem.collect.MemCollection.parallelDo(MemCollection.java:117)
	at org.apache.crunch.impl.mem.collect.MemCollection.parallelDo(MemCollection.java:112)
...
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:68)
Caused by: org.apache.commons.lang.SerializationException: java.io.NotSerializableException:
org.apache.avro.io.BinaryDecoder
	- field (class "org.apache.crunch.types.avro.AvroDeepCopier$AvroReflectDeepCopier", name:
"binaryDecoder", type: "class org.apache.avro.io.BinaryDecoder")
	- object (class "org.apache.crunch.types.avro.AvroDeepCopier$AvroReflectDeepCopier", org.apache.crunch.types.avro.AvroDeepCopier$AvroReflectDeepCopier@1c25b8a7)
	- field (class "org.apache.crunch.types.avro.AvroType", name: "deepCopier", type: "interface
org.apache.crunch.types.DeepCopier")
	- object (class "org.apache.crunch.types.avro.AvroType", org.apache.crunch.types.avro.AvroType@6889d368)
	- field (class "com.rr.crunch.util.AggregationUtils$5", name: "val$ptype", type: "interface
org.apache.crunch.types.PType")
	- root object (class "com.rr.crunch.util.AggregationUtils$5", com.rr.crunch.util.AggregationUtils$5@fac80)
	at org.apache.commons.lang.SerializationUtils.serialize(SerializationUtils.java:112)
	at org.apache.commons.lang.SerializationUtils.serialize(SerializationUtils.java:134)
	at org.apache.crunch.impl.mem.collect.MemCollection.verifySerializable(MemCollection.java:102)
	... 29 more

I'm assuming that other than the valueClass, all the member variables below should be transient.

 public static class AvroReflectDeepCopier<T> extends AvroDeepCopier<T> {
    private DatumReader<T> datumReader;
    private DatumWriter<T> datumWriter;
    private BinaryEncoder binaryEncoder;
    private BinaryDecoder binaryDecoder;
    private final Class<T> valueClass;

Help greatly appreciated and let me know if this isn't an actual bug and is user error.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message