[HUDI-6654] Add new log block header type to store record positions

[yihua]

Change Logs

Add new log block header type to store record positions.

Impact

This is a log format change.

Risk level (write none, low medium or high below)

medium

Documentation Update

Describe any necessary documentation update if there is any new feature, config, or user-facing change

• The config description must be updated if new configs are added or the default value of the configs are changed
• Any new feature or user-facing change requires updating the Hudi website. Please create a Jira ticket, attach the
  ticket number here and follow the instruction to make
  changes to the website.

Contributor's checklist

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

[vinothchandar]

@yihua please also keep the tech specs doc upto date, once this lands.

Are deferring including it in bundles till later? Including it earlier would help 0.14.0 readers read it when written from 0.14.1?

[nsivabalan]

@yihua : can you update PR desc

[nsivabalan]

LGTM. there is no change in log block or log format version is it? we did the bump in previous patch when we did the delete key serialization right. Guess that should suffice

[nsivabalan]

Looks like there are some CI failures. can you follow up.

[hudi-bot]

CI report:

• 156b61c Azure: FAILURE
• 116f917 Azure: PENDING

Bot commands

@hudi-bot supports the following commands:

• @hudi-bot run azure re-run the last Azure build

[yihua]

CI passes: