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Posted to commits@hudi.apache.org by "suryaprasanna (via GitHub)" <gi...@apache.org> on 2024/07/10 05:50:13 UTC
[PR] [HUDI-7975] Provide an API to create empty commit [hudi]
suryaprasanna opened a new pull request, #11606:
URL: https://github.com/apache/hudi/pull/11606
Summary: By creating empty commit, checkpoints from the commit files can be transferred to new instants. So, this change is used to create emptyCommit by copying the extrametadata from the last completed non-table service commit in the timeline. Generally, empty commits are created max one instant per day per dataset, the cadence to transfer metadata can be configured that way bloating of the commit timeline can be avoided. whenever there is no new data to be written.
### Change Logs
_Describe context and summary for this change. Highlight if any code was copied._
### Impact
_Describe any public API or user-facing feature change or any performance impact._
### Risk level (write none, low medium or high below)
_If medium or high, explain what verification was done to mitigate the risks._
### 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](https://hudi.apache.org/contribute/developer-setup#website) to make
changes to the website._
### Contributor's checklist
- [ ] Read through [contributor's guide](https://hudi.apache.org/contribute/how-to-contribute)
- [ ] Change Logs and Impact were stated clearly
- [ ] Adequate tests were added if applicable
- [ ] CI passed
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Re: [PR] [HUDI-7975] Provide an API to create empty commit [hudi]
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #11606:
URL: https://github.com/apache/hudi/pull/11606#issuecomment-2219689162
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## CI report:
* 7c2dc1d616944a7e24693e7710005c52fc446601 Azure: [PENDING](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=24804)
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Re: [PR] [HUDI-7975] Provide an API to create empty commit [hudi]
Posted by "danny0405 (via GitHub)" <gi...@apache.org>.
danny0405 commented on PR #11606:
URL: https://github.com/apache/hudi/pull/11606#issuecomment-2219858711
should we think through a way to improve the incremental query performance on the timeline instead of these tricky changes?
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Re: [PR] [HUDI-7975] Provide an API to create empty commit [hudi]
Posted by "voonhous (via GitHub) via commits" <co...@hudi.apache.org>.
voonhous closed pull request #11606: [HUDI-7975] Provide an API to create empty commit
URL: https://github.com/apache/hudi/pull/11606
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Re: [PR] [HUDI-7975] Provide an API to create empty commit [hudi]
Posted by "voonhous (via GitHub) via commits" <co...@hudi.apache.org>.
voonhous commented on PR #11606:
URL: https://github.com/apache/hudi/pull/11606#issuecomment-6700353000
Temporarily closing this PR while we debug a GitHub settings error on master (#20471); it will be reopened shortly, no action needed.
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Re: [PR] [HUDI-7975] Provide an API to create empty commit [hudi]
Posted by "suryaprasanna (via GitHub)" <gi...@apache.org>.
suryaprasanna commented on PR #11606:
URL: https://github.com/apache/hudi/pull/11606#issuecomment-2221771756
> should we think through a way to improve the incremental query performance on the timeline instead of these tricky changes?
The reason for creating an empty commit is to trigger table service operations like rollback, clean and archival. We have noticed that users are not calling any hudi APIs when there is no data to ingest, but our internal table services cannot handle all the cases. Another reason we also need this when data is getting ingested from multiple sources and each writer is tracking its own checkpoint in the commit. Then in that setup, if one writer is making frequent writes and other is not writing that frequently then there is a case where checkpoints stored by the second writer can be archived. So, we need a better way to store those checkpoint information as well.
This change helps us in both triggering table services and also copy checkpoints.
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Re: [PR] [HUDI-7975] Provide an API to create empty commit [hudi]
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #11606:
URL: https://github.com/apache/hudi/pull/11606#issuecomment-2219677617
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## CI report:
* 7c2dc1d616944a7e24693e7710005c52fc446601 UNKNOWN
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Re: [PR] [HUDI-7975] Provide an API to create empty commit [hudi]
Posted by "hudi-bot (via GitHub)" <gi...@apache.org>.
hudi-bot commented on PR #11606:
URL: https://github.com/apache/hudi/pull/11606#issuecomment-2219765331
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## CI report:
* 7c2dc1d616944a7e24693e7710005c52fc446601 Azure: [FAILURE](https://dev.azure.com/apache-hudi-ci-org/785b6ef4-2f42-4a89-8f0e-5f0d7039a0cc/_build/results?buildId=24804)
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