[jira] [Created] (SPARK-26094) Streaming WAL should create parent dirs

["Imran Rashid (JIRA)" <ji...@apache.org>]

Imran Rashid created SPARK-26094:
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             Summary: Streaming WAL should create parent dirs
                 Key: SPARK-26094
                 URL: https://issues.apache.org/jira/browse/SPARK-26094
             Project: Spark
          Issue Type: Improvement
          Components: DStreams
    Affects Versions: 3.0.0
            Reporter: Imran Rashid
            Assignee: Imran Rashid


SPARK-25871 introduced a regression in the streaming WAL -- it no longer makes all the parent dirs, so you may see an exception like this in cases that used to work:

{noformat}
18/11/09 03:31:48 ERROR util.FileBasedWriteAheadLog_ReceiverSupervisorImpl: Failed to write to write ahead log after 3 failures
...
org.apache.spark.SparkException: Exception thrown in awaitResult:
        at org.apache.spark.util.ThreadUtils$.awaitResult(ThreadUtils.scala:226)
        at org.apache.spark.streaming.receiver.WriteAheadLogBasedBlockHandler.storeBlock(ReceivedBlockHandler.scala:210)
...
Caused by: java.io.FileNotFoundException: Parent directory doesn't exist: /tmp/__spark__1e8ba184-d323-47eb-b857-0e6285409424/88992/checkpoints/receivedData/0
        at org.apache.hadoop.hdfs.server.namenode.FSDirectory.verifyParentDir(FSDirectory.java:1923)
{noformat}



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