Well it happens on the client before you even hit the RestClusterClient,
so I assume that either your jar is not packaged correctly or you your
JobExecutor is putting it on the classpath.
On 10/27/2020 9:42 AM, Flavio Pompermaier wrote:
Sure. Here it is (org.apache.flink.client.cli.JobExecutor is my main
class I'm trying to use as a client towards the Flink cluster -
session mode).
it/test/MyOb is within the fat jar (/tmp/job-bundle.jar).
The code of getBatchEnv is:
@Deprecated
public static BatchEnv getBatchEnv() {
// TODO use the following when ready to convert from/to datastream
// return
getTableEnv(EnvironmentSettings.newInstance().inBatchMode().build());
ExecutionEnvironment env =
ExecutionEnvironment.getExecutionEnvironment();
BatchTableEnvironment ret = BatchTableEnvironment.create(env);
customizeEnv(ret);
return new BatchEnv(env, ret);
}
private static void customizeEnv(TableEnvironment ret) {
final Configuration conf = ret.getConfig().getConfiguration();
//
conf.setInteger(ExecutionConfigOptions.TABLE_EXEC_RESOURCE_DEFAULT_PARALLELISM,
2);
conf.setString(CoreOptions.TMP_DIRS, FLINK_TEST_TMP_DIR);
conf.setString(BlobServerOptions.STORAGE_DIRECTORY,
FLINK_TEST_TMP_DIR);
// conf.setInteger(ConfigConstants.LOCAL_NUMBER_TASK_MANAGER, 4);
//NOSONAR
// conf.setFloat(ConfigConstants.TASK_MANAGER_MEMORY_FRACTION_KEY,
0.4f);//NOSONAR
// conf.setLong(TaskManagerOptions.NETWORK_BUFFERS_MEMORY_MAX,
32768 * 2);//NOSONAR
// conf.setLong(TaskManagerOptions.TASK_CANCELLATION_TIMEOUT,
32768 * 2);// NOSONAR
conf.setLong(TaskManagerOptions.TASK_CANCELLATION_TIMEOUT, 0);// NOSONAR
conf.setString(AkkaOptions.ASK_TIMEOUT, "10 min");// NOSONAR
conf.setString(AkkaOptions.TCP_TIMEOUT, "10 min");// NOSONAR
conf.setString(AkkaOptions.STARTUP_TIMEOUT, "10 min");// NOSONAR
conf.set(ClientOptions.CLIENT_TIMEOUT, Duration.ofMinutes(10));//
NOSONAR
final List<String> kryoSerializers = new ArrayList<>();
kryoSerializers.add(getKryoSerializerConfigLine(DateTime.class,
JodaDateTimeSerializer.class));
kryoSerializers.add(getKryoSerializerConfigLine(EntitonAtom.class,
TBaseSerializer.class));
kryoSerializers.add(getKryoSerializerConfigLine(EntitonQuad.class,
TBaseSerializer.class));
conf.set(PipelineOptions.KRYO_DEFAULT_SERIALIZERS, kryoSerializers);
}
Classpath: [file:/tmp/job-bundle.jar]
System.out: (none)
System.err: (none)
at
org.apache.flink.client.program.PackagedProgramUtils.generateException(PackagedProgramUtils.java:245)
at
org.apache.flink.client.program.PackagedProgramUtils.getPipelineFromProgram(PackagedProgramUtils.java:164)
at
org.apache.flink.client.program.PackagedProgramUtils.createJobGraph(PackagedProgramUtils.java:77)
at
org.apache.flink.client.program.PackagedProgramUtils.createJobGraph(PackagedProgramUtils.java:109)
at org.apache.flink.client.cli.JobExecutor.main(JobExecutor.java:42)
Caused by: java.lang.NoClassDefFoundError: it/test/MyOb
at
it.okkam.datalinks.flink.DatalinksExecutionEnvironment.customizeEnv(DatalinksExecutionEnvironment.java:116)
at
it.okkam.datalinks.flink.DatalinksExecutionEnvironment.getBatchEnv(DatalinksExecutionEnvironment.java:95)
at
it.okkam.datalinks.flink.jobs.EnsReconciliator.main(EnsReconciliator.java:73)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:288)
at
org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:198)
at
org.apache.flink.client.program.PackagedProgramUtils.getPipelineFromProgram(PackagedProgramUtils.java:150)
... 3 more
Caused by: java.lang.ClassNotFoundException: it/test/MyOb
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:589)
at
org.apache.flink.util.FlinkUserCodeClassLoader.loadClassWithoutExceptionHandling(FlinkUserCodeClassLoader.java:61)
at
org.apache.flink.util.ChildFirstClassLoader.loadClassWithoutExceptionHandling(ChildFirstClassLoader.java:74)
at
org.apache.flink.util.FlinkUserCodeClassLoader.loadClass(FlinkUserCodeClassLoader.java:48)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)
... 13 more
On Tue, Oct 27, 2020 at 9:32 AM Robert Metzger <rmetz...@apache.org
<mailto:rmetz...@apache.org>> wrote:
Hi Flavio,
can you share the full stacktrace you are seeing? I'm wondering if
the error happens on the client or server side (among other
questions I have).
On Mon, Oct 26, 2020 at 5:58 PM Flavio Pompermaier
<pomperma...@okkam.it <mailto:pomperma...@okkam.it>> wrote:
Hi to all,
I was trying to use the RestClusterClient to submit my job to
the Flink cluster.
However when I submit the job Flink cannot find the classes
contained in the "fat" jar..what should I do? Am I missing
something in my code?
This is the current client code I'm testing:
public static void main(String[] args) throws
MalformedURLException {
final Configuration flinkConf = new Configuration();
flinkConf.set(RestOptions.ADDRESS, "localhost");
flinkConf.set(RestOptions.PORT, 8081);
final File jarFile = new File("/tmp/job-bundle.jar");
final String jobClass = "it.flink.MyJob";
try {
final RestClusterClient<StandaloneClusterId> client =
new RestClusterClient<>(flinkConf,
StandaloneClusterId.getInstance());
final PackagedProgram packagedProgram =
PackagedProgram.newBuilder()//
.setJarFile(jarFile)//
// .setUserClassPaths(userClassPaths)
.setEntryPointClassName(jobClass).setConfiguration(flinkConf)//
.build();
final JobGraph jobGraph =
PackagedProgramUtils.createJobGraph(packagedProgram,
flinkConf, 1, true);
final DetachedJobExecutionResult jobExecutionResult =
client.submitJob(jobGraph).thenApply(DetachedJobExecutionResult::new).get();
System.out.println(jobExecutionResult.getJobID());
} catch (Exception ex) {
ex.printStackTrace();
System.exit(1);
}
}
Best,
Flavio
