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https://issues.apache.org/jira/browse/DRILL-5102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arina Ielchiieva reassigned DRILL-5102:
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Assignee: (was: Arina Ielchiieva)
> Use a different root path for Dynamic UDF directories in local vs. DFS modes
> ----------------------------------------------------------------------------
>
> Key: DRILL-5102
> URL: https://issues.apache.org/jira/browse/DRILL-5102
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.9.0
> Reporter: Paul Rogers
> Priority: Minor
>
> A user on the Drill mail list tried to start an embedded Drillbit on Windows
> and got the error shown below.
> The problem is that the Dynamic UDF feature has a "root" option which
> defaults to "User/<name-of-user>". On Windows, "User" is a special folder
> with limited permissions. On Windows, it is uncommon to create directories
> directly under the User's home folder. Instead, files are usually put under
> Documents, AppData, etc.
> On the Mac, "/Users/<name-of-user>" is the user's home directory, another
> awkward place to put app-specific files.
> On Linux, the "/Users" folder probably won't exist and the user probably
> won't have permission to create a new top-level folder.
> However, on HDFS, "/user/<user-name>" is the typical pattern.
> The Dynamic UDF feature needs a way to calculate a good default root suitable
> for the type of file system. For "file:///", it should be in a Drill temp
> directory (perhaps along side the storage plugins in /tmp/drill." On HDFS, it
> should default to "/user/drill" or "/user/<user-name>". On Windows... Not
> sure where Drill puts its embedded metadata files, but the default Dynamic
> UDF location should be the same.
> {code}
> Error: Failure in starting embedded Drillbit:
> org.apache.drill.common.exceptions
> .DrillRuntimeException: Error during udf area creation
> [/C:/Users/ivy.chan/drill
> /udf/registry] on file system [file:///] (state=,code=0)
> java.sql.SQLException: Failure in starting embedded Drillbit:
> org.apache.drill.c
> ommon.exceptions.DrillRuntimeException: Error during udf area creation
> [/C:/User
> s/ivy.chan/drill/udf/registry] on file system [file:///]
> at
> org.apache.drill.jdbc.impl.DrillConnectionImpl.<init>(DrillConnection
> Impl.java:128)
> at
> org.apache.drill.jdbc.impl.DrillJdbc41Factory.newDrillConnection(Dril
> lJdbc41Factory.java:70)
> at
> org.apache.drill.jdbc.impl.DrillFactory.newConnection(DrillFactory.ja
> va:69)
> ...
> {code}
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