[HUDI-9512] Avoid creating empty files when there is content to write

[the-other-tim-brown]

Change Logs

• Updates code to avoid creating empty files when there is content to write

Impact

• Avoid risk of creating an empty file due to a crash

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

None

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

[nsivabalan]

hey @the-other-tim-brown : can you check CI failures. once its green, we are good to land this one right?

[hudi-bot]

CI report:

• a7e54acbba083fee8fd8a805fc88f7247cc7be23 Azure: SUCCESS

Bot commands

@hudi-bot supports the following commands:

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