Myasuka opened a new pull request, #36242:
URL: https://github.com/apache/spark/pull/36242
### What changes were proposed in this pull request?
Create root dfs directory for RocksDBFileManager with unknown number of keys
on 1st checkpoint.
### Why are the changes needed?
If this fix is not introduced, we might meet exception below:
~~~java
File
/private/var/folders/rk/wyr101_562ngn8lp7tbqt7_00000gp/T/spark-ce4a0607-b1d8-43b8-becd-638c6b030019/state/1/1
does not exist
java.io.FileNotFoundException: File
/private/var/folders/rk/wyr101_562ngn8lp7tbqt7_00000gp/T/spark-ce4a0607-b1d8-43b8-becd-638c6b030019/state/1/1
does not exist
at
org.apache.hadoop.fs.RawLocalFileSystem.deprecatedGetFileStatus(RawLocalFileSystem.java:779)
at
org.apache.hadoop.fs.RawLocalFileSystem.getFileLinkStatusInternal(RawLocalFileSystem.java:1100)
at
org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:769)
at
org.apache.hadoop.fs.DelegateToFileSystem.getFileStatus(DelegateToFileSystem.java:128)
at
org.apache.hadoop.fs.DelegateToFileSystem.createInternal(DelegateToFileSystem.java:93)
at
org.apache.hadoop.fs.ChecksumFs$ChecksumFSOutputSummer.<init>(ChecksumFs.java:353)
at org.apache.hadoop.fs.ChecksumFs.createInternal(ChecksumFs.java:400)
at
org.apache.hadoop.fs.AbstractFileSystem.create(AbstractFileSystem.java:626)
at org.apache.hadoop.fs.FileContext$3.next(FileContext.java:701)
at org.apache.hadoop.fs.FileContext$3.next(FileContext.java:697)
at org.apache.hadoop.fs.FSLinkResolver.resolve(FSLinkResolver.java:90)
at org.apache.hadoop.fs.FileContext.create(FileContext.java:703)
at
org.apache.spark.sql.execution.streaming.FileContextBasedCheckpointFileManager.createTempFile(CheckpointFileManager.scala:327)
at
org.apache.spark.sql.execution.streaming.CheckpointFileManager$RenameBasedFSDataOutputStream.<init>(CheckpointFileManager.scala:140)
at
org.apache.spark.sql.execution.streaming.CheckpointFileManager$RenameBasedFSDataOutputStream.<init>(CheckpointFileManager.scala:143)
at
org.apache.spark.sql.execution.streaming.FileContextBasedCheckpointFileManager.createAtomic(CheckpointFileManager.scala:333)
at
org.apache.spark.sql.execution.streaming.state.RocksDBFileManager.zipToDfsFile(RocksDBFileManager.scala:438)
at
org.apache.spark.sql.execution.streaming.state.RocksDBFileManager.saveCheckpointToDfs(RocksDBFileManager.scala:174)
at
org.apache.spark.sql.execution.streaming.state.RocksDBSuite.saveCheckpointFiles(RocksDBSuite.scala:566)
at
org.apache.spark.sql.execution.streaming.state.RocksDBSuite.$anonfun$new$35(RocksDBSuite.scala:179)
........
~~~
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Tested via RocksDBSuite.
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