HIVE-29517: Make schema upgrade scripts idempotent and rerunnable#6383
Draft
soumyakanti3578 wants to merge 3 commits intoapache:masterfrom
Draft
HIVE-29517: Make schema upgrade scripts idempotent and rerunnable#6383soumyakanti3578 wants to merge 3 commits intoapache:masterfrom
soumyakanti3578 wants to merge 3 commits intoapache:masterfrom
Conversation
|
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
What changes were proposed in this pull request?
https://issues.apache.org/jira/browse/HIVE-29517
Make upgrade scripts idempotent by letting DDLs silently fail if the DDL is retrying statements which were already executed.
For example, if the upgrade script creates a table, and then fails later, when we re-run it we can allow it to silently fail on the "CREATE" statement again and just move on to the next statement.
Why are the changes needed?
This makes it upgrades easier. If a script fails we can re-run it without having to manually clean up tables.
Does this PR introduce any user-facing change?
No
How was this patch tested?