CORTX-28560 & CORTX-29057 : Fix duplicate events published from k8s_monitor & Event parser issue

[mariyappanp]

Problem Statement

CORTX-28560 - k8s_monitor is repeating previously sent alert event there is no status change on monitoring objects. CORTX-29057 - Unpacking issue with Event parser when it returns None

Design

CORTX-28560 - Fix is to publish only new alert by checking whether incoming alert is already sent or not. CORTX-29057 - Return required number of values as client code expects

Coding

• [x] Coding conventions are followed and code is consistent

Testing

• [x] Unit and System Tests are added Test is added. Logs are also validated.
• [x] Test Cases cover Happy Path, Non-Happy Path and Scalability
• [x] Testing was performed with RPM Log: https://jts.seagate.com/secure/attachment/505658/DEV_fix_log_23FEB2022.txt

Review Checklist

• [x] PR is self reviewed
• [x] JIRA number/GitHub Issue added to PR
• [x] Jira and state/status is updated and JIRA is updated with PR link
• [x] Check if the description is clear and explained
• [x] If yes for above point, is a notification sent to all other cortx components? [Y/N] N.A
• [x] Side effects on other features (deployment/upgrade)? [Y/N] N
• [x] Dependencies on other component(s)? [Y/N] N
• If yes for above point, post link to the corresponding PR.

Review Checklist

• [ ] Is perfline test run and the report with and without the changes updated in the PR? [Y/N]:

Documentation

Checklist for Author

• [ ] Changes done to WIKI / Confluence page / Quick Start Guide

[ArchanaLimaye]

Please add testing details

[mariyappanp]

Please add testing details Logs are verified. Log file is attached to the bug. https://jts.seagate.com/secure/attachment/505658/DEV_fix_log_23FEB2022.txt

[mariyappanp]

please check Madhuri's comments, otherwise, the logic looks good. Q. What if for a particular pod if offline and online both events repeated. have you checked to restart the same pod multiple times during a few minutes gap of you can test the same with mock also?

Yes, acknowledged.