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Posted to issues@spark.apache.org by "Marco Gaido (JIRA)" <ji...@apache.org> on 2017/06/14 12:08:00 UTC
[jira] [Commented] (SPARK-19909) Batches will fail in case that
temporary checkpoint dir is on local file system while metadata dir is on
HDFS
[ https://issues.apache.org/jira/browse/SPARK-19909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16049105#comment-16049105 ]
Marco Gaido commented on SPARK-19909:
-------------------------------------
[~rvoyer] there is a workaround and it is easy: you have to set the {{checkpointLocation}} option or the {{spark.sql.streaming.checkpointLocation}} parameter.
> Batches will fail in case that temporary checkpoint dir is on local file system while metadata dir is on HDFS
> -------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-19909
> URL: https://issues.apache.org/jira/browse/SPARK-19909
> Project: Spark
> Issue Type: Bug
> Components: Structured Streaming
> Affects Versions: 2.2.0
> Reporter: Kousuke Saruta
> Priority: Minor
>
> When we try to run Structured Streaming in local mode but use HDFS for the storage, batches will be fail because of error like as follows.
> {code}
> val handle = stream.writeStream.format("console").start()
> 17/03/09 16:54:45 ERROR StreamMetadata: Error writing stream metadata StreamMetadata(fc07a0b1-5423-483e-a59d-b2206a49491e) to /private/var/folders/4y/tmspvv353y59p3w4lknrf7cc0000gn/T/temporary-79d4fe05-4301-4b6d-a902-dff642d0ddca/metadata
> org.apache.hadoop.security.AccessControlException: Permission denied: user=kou, access=WRITE, inode="/private/var/folders/4y/tmspvv353y59p3w4lknrf7cc0000gn/T/temporary-79d4fe05-4301-4b6d-a902-dff642d0ddca/metadata":hdfs:supergroup:drwxr-xr-x
> {code}
> It's because that a temporary checkpoint directory is created on local file system but metadata whose path is based on the checkpoint directory will be created on HDFS.
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