Hi Vino,
I don’t think this is lack of dependencies.
If you look at the last line before NoClassDefFoundError you’ll see that the class actually is GoogleCloudStorageImpl and missing dependency is GoogleCloudStorageImpl$6.I can see both classes in the shaded jar. Seems like classloader issue. But I am still lost of what can I try next.
Best regards,
Oleksandr
Hi Oleksandr,
From the exception log, you seem to lack the relevant dependencies?
You can check again which dependency the related class belongs to.
Thanks, vino.
Hello All!I am trying to configure checkpoints for flink jobs in GCS. Now I am able to write checkpoints but cannot restore from it:
java.lang.NoClassDefFoundError: com/google/cloud/hadoop/gcsio/GoogleCloudStorageImpl$6
at com.google.cloud.hadoop.gcsio.GoogleCloudStorageImpl.open(GoogleCloudStorageImpl.java:666)
at com.google.cloud.hadoop.gcsio.GoogleCloudStorageFileSystem.open(GoogleCloudStorageFileSystem.java:323)
at com.google.cloud.hadoop.fs.gcs.GoogleHadoopFSInputStream.<init>(GoogleHadoopFSInputStream.java:136)
at com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystemBase.open(GoogleHadoopFileSystemBase.java:1102)
at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:787)
at org.apache.flink.runtime.fs.hdfs.HadoopFileSystem.open(HadoopFileSystem.java:119)
at org.apache.flink.runtime.fs.hdfs.HadoopFileSystem.open(HadoopFileSystem.java:36)
at org.apache.flink.core.fs.SafetyNetWrapperFileSystem.open(SafetyNetWrapperFileSystem.java:80)
at org.apache.flink.runtime.state.filesystem.FileStateHandle.openInputStream(FileStateHandle.java:68)
at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$RocksDBIncrementalRestoreOperation.copyStateDataHandleData(RocksDBKeyedStateBackend.java:1005)
at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$RocksDBIncrementalRestoreOperation.transferAllDataFromStateHandles(RocksDBKeyedStateBackend.java:988)
at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$RocksDBIncrementalRestoreOperation.transferAllStateDataToDirectory(RocksDBKeyedStateBackend.java:974)
at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$RocksDBIncrementalRestoreOperation.restoreInstance(RocksDBKeyedStateBackend.java:758)
at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend$RocksDBIncrementalRestoreOperation.restore(RocksDBKeyedStateBackend.java:732)
at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend.restore(RocksDBKeyedStateBackend.java:443)
at org.apache.flink.contrib.streaming.state.RocksDBKeyedStateBackend.restore(RocksDBKeyedStateBackend.java:149)
at org.apache.flink.streaming.api.operators.BackendRestorerProcedure.attemptCreateAndRestore(BackendRestorerProcedure.java:151)
at org.apache.flink.streaming.api.operators.BackendRestorerProcedure.createAndRestore(BackendRestorerProcedure.java:123)
at org.apache.flink.streaming.api.operators.StreamTaskStateInitializerImpl.keyedStatedBackend(StreamTaskStateInitializerImpl.java:276)
at org.apache.flink.streaming.api.operators.StreamTaskStateInitializerImpl.streamOperatorStateContext(StreamTaskStateInitializerImpl.java:132)
at org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:227)
at org.apache.flink.streaming.runtime.tasks.StreamTask.initializeState(StreamTask.java:730)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:295)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:703)
at java.lang.Thread.run(Thread.java:748)
My current setup:
<dependency>
<groupId>com.google.cloud.bigdataoss</groupId>
<artifactId>gcs-connector</artifactId>
<version>hadoop2-1.9.5</version>
</dependency>
Flink image: flink:1.5.2-hadoop28
Thank you in advance!
Locked
