[SPARK-25016] remove Support for hadoop 2.6

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 3.0.0
• Component/s: Build
• Labels: release-notes
• Target Version/s: 3.0.0
• Docs Text: Hadoop 2.6.x support is removed. The default Hadoop version in Spark 3.0.0 in 2.7.x.
• Assignee: Sean R. Owen
• Reporter: Thomas Graves
• Created: 03/Aug/18 17:00
• Updated: 22/Jan/20 21:06
• Resolved: 10/Oct/18 19:08

Description

Hadoop 2.6  is now old, no releases have been done in 2 year and it doesn't look like they are patching it for security or bug fixes. We should stop supporting it in spark.

Issue Links

• links to: [Github] Pull Request #22615 (srowen)
• links to: [Github] Pull Request #22615 (srowen)
• links to: GitHub Pull Request #26708