[YARN-11075] Explicitly declare serialVersionUID in LogMutation class

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.1
• Fix Version/s: 3.4.0, 3.2.4, 3.1.5, 3.3.3
• Labels: pull-request-available
• Target Version/s: 3.3.3
• Hadoop Flags: Reviewed
• Assignee: Benjamin Teke
• Reporter: Benjamin Teke
• Created: 11/Feb/22 14:20
• Updated: 19/Apr/22 09:55
• Resolved: 18/Apr/22 14:14

Description

The LogMutation class doesn't have its serialVersionUID defined as a private final static constant hence the compiler generates one for it. Upon every logMutation call, the existing logMutation objects are collected from the chosen config store and deserialized, but if a new/different RM jar loads these and the serialVersionUIDs don't match (for example a different compiler generated a different ID) an InvalidClassException occurs.

Issue Links

• is depended upon by: HADOOP-18198 Release Hadoop 3.3.3: hadoop-3.3.2 with some fixes
• links to: GitHub Pull Request #3984
• links to: GitHub Pull Request #3986
• links to: GitHub Pull Request #4012
• links to: GitHub Pull Request #4013
• links to: GitHub Pull Request #4014