[HDDS-4949] NullPointerException during SCM init

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0
• Labels: pull-request-available
• Assignee: Bharat Viswanadham
• Reporter: Bharat Viswanadham
• Created: 10/Mar/21 12:36
• Updated: 10/Mar/21 14:17
• Resolved: 10/Mar/21 14:16

Description

scm1_1       | java.lang.NullPointerException
scm1_1       | 	at org.apache.hadoop.hdds.scm.ha.SCMStateMachine.close(SCMStateMachine.java:297)
scm1_1       | 	at org.apache.ratis.server.impl.StateMachineUpdater.stop(StateMachineUpdater.java:130)
scm1_1       | 	at org.apache.ratis.server.impl.StateMachineUpdater.run(StateMachineUpdater.java:184)
scm1_1       | 	at java.base/java.lang.Thread.run(Thread.java:834)

This is due to during SCM init, RatisServer is started with StateMachine initialized false.

Issue Links

• is fixed by: HDDS-4922 refactor code in SCMStateMachine.
• links to: GitHub Pull Request #2021