This is a bug in the HadoopInputSplit. It does not follow the general class
loading rules in Flink. I think it is pretty straightforward to fix, I'll
give it a quick shot...
Can you send me the entire stack trace (where the serialization call comes
from) to verify this?
On Wed, May 20, 2015 at 12:03 PM, Flavio Pompermaier <pomperma...@okkam.it>
wrote:
> Now I'm able to run the job but I get another exception..this time it
> seems that Flink it's not able to split my Parquet file:
>
> Caused by: java.lang.ClassNotFoundException:
> parquet.hadoop.ParquetInputSplit
> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:190)
> at
> org.apache.flink.api.java.hadoop.mapreduce.wrapper.HadoopInputSplit.readObject(HadoopInputSplit.java:104)
>
> I checked the jar and that class is present in my "fat" jar.
> What should I do now?
>
>
> On Wed, May 20, 2015 at 10:57 AM, Flavio Pompermaier <pomperma...@okkam.it
> > wrote:
>
>> Yes it could be that the jar classes and those on the cluster are not
>> aligned for some days..Now I'll recompile both sides and if I still have
>> the error I will change line 42 as you suggested.
>> Tanks Max
>>
>> On Wed, May 20, 2015 at 10:53 AM, Maximilian Michels <m...@apache.org>
>> wrote:
>>
>>> Hi Flavio,
>>>
>>> It would be helpful, if we knew which class could not be found. In the
>>> ClosureCleaner, can you change line 42 to include the class name in the
>>> error message? Like in this example:
>>>
>>> private static ClassReader getClassReader(Class<?> cls) {
>>> String className = cls.getName().replaceFirst("^.*\\.", "") + ".class";
>>> try {
>>> return new ClassReader(cls.getResourceAsStream(className));
>>> } catch (IOException e) {
>>> throw new RuntimeException("Could not create ClassReader for class "
>>> + cls.getName() + ":" + e);
>>> }
>>> }
>>>
>>> Could it be that you're running an old job on the latest snapshot
>>> version? This could cause class-related problems...
>>>
>>> Cheers,
>>> Max
>>>
>>> On Wed, May 20, 2015 at 9:41 AM, Flavio Pompermaier <
>>> pomperma...@okkam.it> wrote:
>>>
>>>> Any insight about this..?
>>>>
>>>> On Tue, May 19, 2015 at 12:49 PM, Flavio Pompermaier <
>>>> pomperma...@okkam.it> wrote:
>>>>
>>>>> Hi to all,
>>>>>
>>>>> I tried to run my job on a brand new Flink cluster (0.9-SNAPSHOT) from
>>>>> the web client UI using the shading strategy of the quickstart example but
>>>>> I get this exception:
>>>>>
>>>>> Caused by: java.lang.RuntimeException: Could not create ClassReader:
>>>>> java.io.IOException: Class not found
>>>>> at
>>>>> org.apache.flink.api.java.ClosureCleaner.getClassReader(ClosureCleaner.java:42)
>>>>> at
>>>>> org.apache.flink.api.java.ClosureCleaner.cleanThis0(ClosureCleaner.java:67)
>>>>> at
>>>>> org.apache.flink.api.java.ClosureCleaner.clean(ClosureCleaner.java:54)
>>>>>
>>>>> It seems that it cannot find some kryo class..how do I fix this? this
>>>>> is my shade plugin section of pom.xml:
>>>>>
>>>>>
>>>>> <plugin>
>>>>> <groupId>org.apache.maven.plugins</groupId>
>>>>> <artifactId>maven-shade-plugin</artifactId>
>>>>> <version>1.4</version>
>>>>> <executions>
>>>>> <execution>
>>>>> <phase>package</phase>
>>>>> <goals>
>>>>> <goal>shade</goal>
>>>>> </goals>
>>>>> <configuration>
>>>>> <artifactSet>
>>>>> <excludes>
>>>>> <!-- This list contains all dependencies of flink-dist Everything
>>>>> else will be packaged into the fat-jar -->
>>>>> <exclude>org.apache.flink:flink-shaded-*</exclude>
>>>>> <exclude>org.apache.flink:flink-core</exclude>
>>>>> <exclude>org.apache.flink:flink-java</exclude>
>>>>> <exclude>org.apache.flink:flink-scala</exclude>
>>>>> <exclude>org.apache.flink:flink-runtime</exclude>
>>>>> <exclude>org.apache.flink:flink-optimizer</exclude>
>>>>> <exclude>org.apache.flink:flink-clients</exclude>
>>>>> <exclude>org.apache.flink:flink-spargel</exclude>
>>>>> <exclude>org.apache.flink:flink-avro</exclude>
>>>>> <exclude>org.apache.flink:flink-java-examples</exclude>
>>>>> <exclude>org.apache.flink:flink-scala-examples</exclude>
>>>>> <exclude>org.apache.flink:flink-streaming-examples</exclude>
>>>>> <exclude>org.apache.flink:flink-streaming-core</exclude>
>>>>>
>>>>> <!-- Also exclude very big transitive dependencies of Flink WARNING:
>>>>> You have to remove these excludes if your code relies on other
>>>>> versions of
>>>>> these dependencies. -->
>>>>> <exclude>org.scala-lang:scala-library</exclude>
>>>>> <exclude>org.scala-lang:scala-compiler</exclude>
>>>>> <exclude>org.scala-lang:scala-reflect</exclude>
>>>>> <exclude>com.amazonaws:aws-java-sdk</exclude>
>>>>> <exclude>com.typesafe.akka:akka-actor_*</exclude>
>>>>> <exclude>com.typesafe.akka:akka-remote_*</exclude>
>>>>> <exclude>com.typesafe.akka:akka-slf4j_*</exclude>
>>>>> <exclude>io.netty:netty-all</exclude>
>>>>> <exclude>io.netty:netty</exclude>
>>>>> <exclude>org.eclipse.jetty:jetty-server</exclude>
>>>>> <exclude>org.eclipse.jetty:jetty-continuation</exclude>
>>>>> <exclude>org.eclipse.jetty:jetty-http</exclude>
>>>>> <exclude>org.eclipse.jetty:jetty-io</exclude>
>>>>> <exclude>org.eclipse.jetty:jetty-util</exclude>
>>>>> <exclude>org.eclipse.jetty:jetty-security</exclude>
>>>>> <exclude>org.eclipse.jetty:jetty-servlet</exclude>
>>>>> <exclude>commons-fileupload:commons-fileupload</exclude>
>>>>> <exclude>org.apache.avro:avro</exclude>
>>>>> <exclude>commons-collections:commons-collections</exclude>
>>>>> <exclude>org.codehaus.jackson:jackson-core-asl</exclude>
>>>>> <exclude>org.codehaus.jackson:jackson-mapper-asl</exclude>
>>>>> <exclude>com.thoughtworks.paranamer:paranamer</exclude>
>>>>> <exclude>org.xerial.snappy:snappy-java</exclude>
>>>>> <exclude>org.apache.commons:commons-compress</exclude>
>>>>> <exclude>org.tukaani:xz</exclude>
>>>>> <exclude>com.esotericsoftware.kryo:kryo</exclude>
>>>>> <exclude>com.esotericsoftware.minlog:minlog</exclude>
>>>>> <exclude>org.objenesis:objenesis</exclude>
>>>>> <exclude>com.twitter:chill_*</exclude>
>>>>> <exclude>com.twitter:chill-java</exclude>
>>>>> <exclude>com.twitter:chill-avro_*</exclude>
>>>>> <exclude>com.twitter:chill-bijection_*</exclude>
>>>>> <exclude>com.twitter:bijection-core_*</exclude>
>>>>> <exclude>com.twitter:bijection-avro_*</exclude>
>>>>> <exclude>com.twitter:chill-protobuf</exclude>
>>>>> <exclude>com.google.protobuf:protobuf-java</exclude>
>>>>> <exclude>com.twitter:chill-thrift</exclude>
>>>>> <exclude>org.apache.thrift:libthrift</exclude>
>>>>> <exclude>commons-lang:commons-lang</exclude>
>>>>> <exclude>junit:junit</exclude>
>>>>> <exclude>de.javakaffee:kryo-serializers</exclude>
>>>>> <exclude>joda-time:joda-time</exclude>
>>>>> <exclude>org.apache.commons:commons-lang3</exclude>
>>>>> <exclude>org.slf4j:slf4j-api</exclude>
>>>>> <exclude>org.slf4j:slf4j-log4j12</exclude>
>>>>> <exclude>log4j:log4j</exclude>
>>>>> <exclude>org.apache.commons:commons-math</exclude>
>>>>> <exclude>org.apache.sling:org.apache.sling.commons.json</exclude>
>>>>> <exclude>commons-logging:commons-logging</exclude>
>>>>> <exclude>org.apache.httpcomponents:httpclient</exclude>
>>>>> <exclude>org.apache.httpcomponents:httpcore</exclude>
>>>>> <exclude>commons-codec:commons-codec</exclude>
>>>>> <exclude>com.fasterxml.jackson.core:jackson-core</exclude>
>>>>> <exclude>com.fasterxml.jackson.core:jackson-databind</exclude>
>>>>> <exclude>com.fasterxml.jackson.core:jackson-annotations</exclude>
>>>>> <exclude>org.codehaus.jettison:jettison</exclude>
>>>>> <exclude>stax:stax-api</exclude>
>>>>> <exclude>com.typesafe:config</exclude>
>>>>> <exclude>org.uncommons.maths:uncommons-maths</exclude>
>>>>> <exclude>com.github.scopt:scopt_*</exclude>
>>>>> <exclude>org.mortbay.jetty:servlet-api</exclude>
>>>>> <exclude>commons-io:commons-io</exclude>
>>>>> <exclude>commons-cli:commons-cli</exclude>
>>>>> </excludes>
>>>>> </artifactSet>
>>>>> <filters>
>>>>> <filter>
>>>>> <artifact>org.apache.flink:*</artifact>
>>>>> <excludes>
>>>>> <exclude>org/apache/flink/shaded/**</exclude>
>>>>> <exclude>web-docs/**</exclude>
>>>>> </excludes>
>>>>> </filter>
>>>>> </filters>
>>>>> <createDependencyReducedPom>false</createDependencyReducedPom>
>>>>> <finalName>XXXX</finalName>
>>>>> <transformers>
>>>>> <!-- add Main-Class to manifest file -->
>>>>> <transformer
>>>>>
>>>>> implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
>>>>> <manifestEntries>
>>>>> <Main-Class>XXX</Main-Class>
>>>>> </manifestEntries>
>>>>> </transformer>
>>>>> </transformers>
>>>>> </configuration>
>>>>> </execution>
>>>>> </executions>
>>>>> </plugin>
>>>>>
>>>>
>>>>
>>>
>>
>>
>
>
