[KNOX-2350] Make sure CM configuration monitor handles event w/o COMMAND and/or COMMAND_STATUS attributes

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.0
• Fix Version/s: 1.4.0, 1.5.0
• Component/s: cm-discovery
• Assignee: Sandor Molnar
• Reporter: J.Andreina
• Created: 21/Apr/20 12:07
• Updated: 22/Apr/20 12:03
• Resolved: 22/Apr/20 12:03

Description

In case PollingConfigurationAnalyzer receives an event from CM which has no COMMAND and/or COMMAND_STATUS attribute(s) a NullPointerException is thrown in org.apache.knox.gateway.topology.discovery.cm.monitor.PollingConfigurationAnalyzer.isRelevantEvent(ApiEvent) which makes the entire configuration monitor thread suspended.

Issue Links

• links to: GitHub Pull Request #318
• links to: GitHub Pull Request #319