Robert Metzger created FLINK-2987:
-------------------------------------
Summary: Flink 0.10 fails to start on YARN 2.6.0
Key: FLINK-2987
URL: https://issues.apache.org/jira/browse/FLINK-2987
Project: Flink
Issue Type: Bug
Components: Build System, YARN Client
Affects Versions: 0.10
Environment: Microsoft Azure HDInsight on Linux: 3.2.1000.0
Reporter: Robert Metzger
Assignee: Robert Metzger
Fix For: 0.10.1
While testing Flink for the release, I noticed that it does not start on YARN
due to classloading issues.
The error message is the following
{code}
robert@hn0-apache:~/flink-0.10.0$ ./bin/yarn-session.sh -n 2
Exception in thread "main" java.lang.RuntimeException: Could not instantiate
type 'org.apache.flink.yarn.FlinkYarnClient' Most likely the constructor (or a
member variable initialization) threw an exception:
com/sun/jersey/api/client/config/ClientConfig
at
org.apache.flink.util.InstantiationUtil.instantiate(InstantiationUtil.java:152)
at
org.apache.flink.util.InstantiationUtil.instantiate(InstantiationUtil.java:118)
at
org.apache.flink.client.FlinkYarnSessionCli.getFlinkYarnClient(FlinkYarnSessionCli.java:262)
at
org.apache.flink.client.FlinkYarnSessionCli.createFlinkYarnClient(FlinkYarnSessionCli.java:107)
at
org.apache.flink.client.FlinkYarnSessionCli.run(FlinkYarnSessionCli.java:400)
at
org.apache.flink.client.FlinkYarnSessionCli.main(FlinkYarnSessionCli.java:351)
Caused by: java.lang.NoClassDefFoundError:
com/sun/jersey/api/client/config/ClientConfig
at
org.apache.hadoop.yarn.client.api.TimelineClient.createTimelineClient(TimelineClient.java:45)
at
org.apache.hadoop.yarn.client.api.impl.YarnClientImpl.serviceInit(YarnClientImpl.java:163)
at
org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at
org.apache.flink.yarn.FlinkYarnClientBase.<init>(FlinkYarnClientBase.java:157)
at org.apache.flink.yarn.FlinkYarnClient.<init>(FlinkYarnClient.java:23)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:379)
at
org.apache.flink.util.InstantiationUtil.instantiate(InstantiationUtil.java:139)
... 5 more
Caused by: java.lang.ClassNotFoundException:
com.sun.jersey.api.client.config.ClientConfig
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)
... 16 more
{code}
The issue occurs with the following versions:
- flink-0.10.0-bin-hadoop26-scala_2.11.tgz
- flink-0.10.0-bin-hadoop26-scala_2.10.tgz
- flink-0.10.0-bin-hadoop27-scala_2.10.tgz
It works for:
- flink-0.10.0-bin-hadoop24-scala_2.10.tgz
- flink-0.9.1-bin-hadoop26.tgz
Interestingly, the issue only occurs, when {{HADOOP_CONF_DIR}} is set.
Otherwise, the YARN client is starting until its unable to connect to the RM.
The missing class is in the jersey-client dependency, which we exclude from
Hadoop, in {{flink-shaded-hadoop2}}.
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