[AMBARI-22386] Patch Upgrades Broken For Clients Due To Versioned LD Library

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.6.0
• Fix Version/s: 2.6.1
• Assignee: Jonathan Hurley
• Reporter: Jonathan Hurley
• Created: 08/Nov/17 21:04
• Updated: 10/Nov/17 07:20
• Resolved: 09/Nov/17 21:26

Description

When services are patched to different versions, jobs being run in containers are unable to pickup the correct JARs from the LD_LIBRARY_PATH passed in via the job.

Consider the following situation:

• Base cluster installed at 2.6.3.0-1
• Enable some sort of codec, like snappy
• YARN patched to 2.6.3.1-1
• Hive patched to 2.6.3.2-1

When Hive goes to run jobs on Tez or when jobs are run on MapR, whatever is sending the job is resolving the hdp.version to its own version. The box that the job runs on, however, might not have that specific versioned directory.

The problem can only be solved externally by providing a way to ensure that the native libraries are on every machine which could potentially run jobs. We could install bits on every host, but that would defeat the space-saving purposes of patch upgrades.

Another solution is to ensure that the Tez and MapR tarballs have the required libraries and that those libraries are added to the classpath of launched jobs.

Issue Links

• links to: ReviewBoard