Document list of metrics emitted by Hudi

[yesemsanthoshkumar]

Change Logs

Adds list of monitoring metrics configured in Hudi.

Impact

No impact on code

Risk level: none

Contributor's checklist

• [x] Read through contributor's guide
• [x] Change Logs and Impact were stated clearly
• [x] Adequate tests were added if applicable
• [ ] CI passed

[yesemsanthoshkumar]

@nsivabalan Following up after the discussion from Office Hours, I've added the list of metrics (https://github.com/apache/hudi/blob/master/hudi-client/hudi-client-common/src/main/java/org/apache/hudi/metrics/HoodieMetrics.java) in the website document.

Please let me know your thoughts.

[nsivabalan]

thanks @yesemsanthoshkumar for the patch.

[yesemsanthoshkumar]

@codope / @bhasudha Any changes required?