roachtest: warmup follower-reads for fixed duration, not fixed number of ops #79444
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Outdated suggestions cannot be applied.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.
Fixes #78596.
This change switches the warmup phase of the follower-read roachtest
suite from running a fixed number of operations (100) to running for a
fixed duration (15s). This should ensure that the single-region variant
of the test is given sufficient time to warm up follower reads immediately
after one of its nodes is restarted.
Before this change, the single-region variant was only being given about
500ms after startup to catch up on the closed timestamp, which made the
test flaky.
Release justification: testing only