fix: when entering idle mode, the old resolve-related resources have … #3402
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…not been completely processed, and an exception occurs when exiting idle mode immediately. fix(test): fix gotest DATA RACE fix(test): gotest errchecked chore(gotest): gofmt chore(gotest): consul address
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…not been completely processed, and an exception occurs when exiting idle mode immediately.
Description (what this PR does / why we need it):
When grpc quickly enters and exits idle mode, there is a situation where it no longer obtains the latest service information. Previously, it was fixed that when the grpc client enters idle mode, the consul package will no longer watch service information again (#3162).
Recently, I found that it was not in idle mode. The target service was updated, but the client service discovery information was not updated. After investigation, it was found that there were problems with the previous modifications. A logic was added before. Every time it enters idle mode, if the number of watch objects in the serviceset reaches 0, it will try to recycle the serviceset. However, there is a certain delay in recycling the serviceset, and it may be blocked by a tick. Please see the code for details. When the serviceset has not been recycled, it will exit the idle mode immediately. When watching again, the resolve method will no longer be called. If the target service is no longer updated in the future, the client will no longer be able to obtain the latest service information because the goroutine for obtaining service information is no longer available.
What was changed?
Which issue(s) this PR fixes (resolves / be part of):
Other special notes for the reviewers: