[HUDI-9534] Use blocking instant generation in Flink writer for COW t…

[cshuo]

…able

Change Logs

Use blocking instant generation in Flink writer for COW table

Impact

Use blocking instant generation in Flink writer for COW table

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

low

Documentation Update

Describe any necessary documentation update if there is any new feature, config, or user-facing change. If not, put "none".

• 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

[hudi-bot]

CI report:

• 01418171c1c3302a039ec22de226394fb3db8b21 UNKNOWN
• fbeedf5eb43a8338ecceef82202c8d78ba475422 Azure: FAILURE

Bot commands

@hudi-bot supports the following commands:

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