[HDFS-7302] namenode -rollingUpgrade downgrade may finalize a rolling upgrade - ASF JIRA

Log work

Agile Board

Rank to Top

Rank to Bottom

Attach files

Attach Screenshot

Bulk Copy Attachments

Bulk Move Attachments

Voters

Watch issue

Watchers

Create sub-task

Convert to sub-task

Move

Link

Clone

Labels

Update Comment Author

Replace String in Comment

Update Comment Visibility

Delete Comments

XML

Word

Printable

JSON

Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 3.0.0-alpha1
Component/s: namenode
Labels:
- document
- hdfs

Target Version/s:

2.6.0
Hadoop Flags:

Incompatible change, Reviewed
Release Note:

Hide
Remove "downgrade" from "namenode -rollingUpgrade" startup option since it may incorrectly finalize an ongoing rolling upgrade.

Show
Remove "downgrade" from "namenode -rollingUpgrade" startup option since it may incorrectly finalize an ongoing rolling upgrade.

Description

The namenode startup option "-rollingUpgrade downgrade" is originally designed for downgrading cluster. However, running "namenode -rollingUpgrade downgrade" with the new software could result in finalizing the ongoing rolling upgrade.