fix(catalog/rest): Using async lock in token to avoid blocking runtime #1223
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Outdated suggestions cannot be applied.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.
Which issue does this PR close?
We used to think it was acceptable to use a blocking lock in the token since we were not crossing an await boundary. However, our users reported that this can cause the runtime to hang completely if multiple catalog instances try to acquire the token concurrently.
What changes are included in this PR?
This PR fixed it by using an async lock instead.
Are these changes tested?
Unit tests.