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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2016/10/06 19:31:21 UTC
[jira] [Created] (SPARK-17810) Default spark.sql.warehouse.dir is
relative to local FS but can resolve as HDFS path
Sean Owen created SPARK-17810:
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Summary: Default spark.sql.warehouse.dir is relative to local FS but can resolve as HDFS path
Key: SPARK-17810
URL: https://issues.apache.org/jira/browse/SPARK-17810
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.0.1
Reporter: Sean Owen
Assignee: Sean Owen
Following SPARK-15899 and https://github.com/apache/spark/pull/13868#discussion_r82252372 we have a slightly different problem.
The change removed the {{file:}} scheme from the default {{spark.sql.warehouse.dir}} as part of its fix, though the path is still clearly intended to be a local FS path and defaults to "spark-warehouse" in the user's home dir. However when running on HDFS this path will be resolved as an HDFS path, where it almost surely doesn't exist.
Although it can be fixed by overriding {{spark.sql.warehouse.dir}} to a path like "file:/tmp/spark-warehouse", or any valid HDFS path, this probably won't work on Windows (the original problem) and of course means the default fails to work for most HDFS use cases.
There's a related problem here: the docs say the default should be spark-warehouse relative to the current working dir, not the user home dir. We can adjust that.
PR coming shortly.
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