[NIFI-5645] Auto reconnect ConsumeWindowsEventLog if no log is consumed for configured time period

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.0.0
• Fix Version/s: 1.8.0
• Component/s: Extensions
• Assignee: Koji Kawamura
• Reporter: Koji Kawamura
• Created: 28/Sep/18 08:25
• Updated: 11/Oct/18 14:06
• Resolved: 11/Oct/18 14:06

Description

While ConsumeWindowsEventLog is running, if Windows Event Log service is restarted, or ERROR_EVT_QUERY_RESULT_STALE (15011) is returned, the processor keeps running, but will not receive further log events.

Current work-around is restarting the processor manually.

We could implement auto-reconnect logic like below, so that the processor can recover from such situation automatically.

• Add a new processor property, ''Inactive duration to reconnect", e.g. "3 mins"
• At onTrigger, check how long has it passed since the last message was received. If it exceeds the configured duration, reset the consumer

Issue Links

• links to: GitHub Pull Request #3037