[IMPALA-2365] Impalad is crashing if udf jar is not available in hdfs location for first time

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: Impala 2.2, Impala 2.3.0
• Fix Version/s: Impala 2.5.0
• Component/s: Backend
• Labels: crash ramp-up
• Target Version: Impala 2.5.0
• Assignee: Bharath Vissapragada
• Reporter: Manikandan R
• Created: 18/Sep/15 09:36
• Updated: 08/Feb/16 23:45
• Resolved: 08/Feb/16 23:45

Description

For the first time, when functions gets triggered, it load the udf's jar from specified HDFS location (specified as part of create function syntax) and keep it in 'tmp' dir (cache) for further operations. Incase, jar is not available at hdfs location for the first time, Impalad is crashing, which is not a good behaviour. Instead, it should throw some warning or error messages and move on.