[jira] [Updated] (FLINK-32241) UnsupportedFileSystemException when using the ABFS Hadoop driver for checkpointing in Flink 1.17

["Hangxiang Yu (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-32241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hangxiang Yu updated FLINK-32241:
---------------------------------
    Component/s: FileSystems

> UnsupportedFileSystemException when using the ABFS Hadoop driver for checkpointing in Flink 1.17
> ------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-32241
>                 URL: https://issues.apache.org/jira/browse/FLINK-32241
>             Project: Flink
>          Issue Type: Bug
>          Components: FileSystems, Runtime / Checkpointing
>    Affects Versions: 1.17.0, 1.17.1
>         Environment: Flink 1.17.1
> Hadoop 3.3.4
> Flink Operator 1.4.0
> Kubernetes 1.24
>            Reporter: Anton Ippolitov
>            Priority: Minor
>
> https://issues.apache.org/jira/browse/HADOOP-18707 introduced a new functionality in the ABFS Hadoop client which buffers data on local disk by default.
> It looks like this breaks with Flink 1.17 in a scenario where:
>  * ABFS is used for checkpointing
>  * JobManager HA is enabled
>  * First JobManager leader dies and a stand-by JobManager takes over
> I can reliably reproduce this with Flink 1.17.1 running on Kubernetes by simply killing the JM leader pod. Once the stand-by JobManager takes over, all checkpoints consistently fail with the following error:
> {noformat}
> org.apache.flink.runtime.checkpoint.CheckpointException: Failure to finalize checkpoint. at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.finalizeCheckpoint(CheckpointCoordinator.java:1424) at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.completePendingCheckpoint(CheckpointCoordinator.java:1310) at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.receiveAcknowledgeMessage(CheckpointCoordinator.java:1202) at org.apache.flink.runtime.scheduler.ExecutionGraphHandler.lambda$acknowledgeCheckpoint$1(ExecutionGraphHandler.java:89) at org.apache.flink.runtime.scheduler.ExecutionGraphHandler.lambda$processCheckpointCoordinatorMessage$3(ExecutionGraphHandler.java:119) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: org.apache.hadoop.fs.UnsupportedFileSystemException: No FileSystem for scheme "file" at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:3443) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3466) at org.apache.hadoop.fs.FileSystem.access$300(FileSystem.java:174) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3574) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3521) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:540) at org.apache.hadoop.fs.FileSystem.getLocal(FileSystem.java:496) at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.confChanged(LocalDirAllocator.java:316) at org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathForWrite(LocalDirAllocator.java:393) at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:165) at org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:146) at org.apache.hadoop.fs.store.DataBlocks$DiskBlockFactory.createTmpFileForWrite(DataBlocks.java:980) at org.apache.hadoop.fs.store.DataBlocks$DiskBlockFactory.create(DataBlocks.java:960) at org.apache.hadoop.fs.azurebfs.services.AbfsOutputStream.createBlockIfNeeded(AbfsOutputStream.java:262) at org.apache.hadoop.fs.azurebfs.services.AbfsOutputStream.<init>(AbfsOutputStream.java:173) at org.apache.hadoop.fs.azurebfs.AzureBlobFileSystemStore.createFile(AzureBlobFileSystemStore.java:580) at org.apache.hadoop.fs.azurebfs.AzureBlobFileSystem.create(AzureBlobFileSystem.java:301) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1195) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1175) at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:1064) at org.apache.flink.fs.azure.common.hadoop.HadoopFileSystem.create(HadoopFileSystem.java:154) at org.apache.flink.fs.azure.common.hadoop.HadoopFileSystem.create(HadoopFileSystem.java:37) at org.apache.flink.core.fs.PluginFileSystemFactory$ClassLoaderFixingFileSystem.create(PluginFileSystemFactory.java:170) at org.apache.flink.runtime.state.filesystem.FSDataOutputStreamWrapper.<init>(FSDataOutputStreamWrapper.java:42) at org.apache.flink.runtime.state.filesystem.FsCheckpointMetadataOutputStream.getOutputStreamWrapper(FsCheckpointMetadataOutputStream.java:179) at org.apache.flink.runtime.state.filesystem.FsCheckpointMetadataOutputStream.<init>(FsCheckpointMetadataOutputStream.java:64) at org.apache.flink.runtime.state.filesystem.FsCheckpointStorageLocation.createMetadataOutputStream(FsCheckpointStorageLocation.java:116) at org.apache.flink.runtime.checkpoint.PendingCheckpoint.finalizeCheckpoint(PendingCheckpoint.java:330) at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.finalizeCheckpoint(CheckpointCoordinator.java:1410) ... 7 common frames omitted{noformat}
> I am not exactly sure why this works with the first JM and why all of a sudden the local Hadoop FS implementation cannot be loaded on a stand-by JM... I am running with default settings when it comes to Hadoop FS etc.
> Anyway, I found a workaround thanks to https://issues.apache.org/jira/browse/SPARK-43188: simply setting {{fs.azure.data.blocks.buffer}} to {{array}} seems to solve the issue. So this is minor priority.



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