Select query with specific projection(s) fails if the local file system
directory for ${hive.user.scratchdir} does not exist.
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Key: HIVE-1277
URL: https://issues.apache.org/jira/browse/HIVE-1277
Project: Hadoop Hive
Issue Type: Bug
Components: Query Processor
Environment: Mac OSX 10.6.2, Java SE 6 (1.6.0_17)
Reporter: Arvind Prabhakar
Assignee: Arvind Prabhakar
When a simple select query with specified projections is processed, the
{{MapRedTask}} attempts to serialize the execution plan to a scratch directory
on the local file system specified by {{hive.user.scratchdir}} configuration
property. The default value of this property points to
{{/tmp/hive-${user.name}}}. On some *nix systems, the /tmp directory gets
cleaned up on every reboot thus causing the query execution to fail.
*Exception stacktrace*
{quote}
hive> select foo from dummy;
Total MapReduce jobs = 1
Launching Job 1 out of 1
java.io.IOException: No such file or directory
at java.io.UnixFileSystem.createFileExclusively(Native Method)
at java.io.File.checkAndCreate(File.java:1704)
at java.io.File.createTempFile(File.java:1792)
at org.apache.hadoop.hive.ql.exec.MapRedTask.execute(MapRedTask.java:89)
...
{quote}
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