Make BrokerBase#healthCheck to pure async#14091
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merlimat
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liangyuanpeng
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gaoran10
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Mar 11, 2022
* Make ``BrokerBase#healthCheck`` to pure async. * fixes checkstyle (cherry picked from commit 488fb78)
gaoran10
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Mar 11, 2022
* Make ``BrokerBase#healthCheck`` to pure async. * fixes checkstyle (cherry picked from commit 488fb78)
codelipenghui
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Mar 14, 2022
…#14658) Original PR #14367 Because the PR #14367 is based on PR #14091, so I want to cherry-pick these two PRs to branch-2.9, the PR #13525 is also needed. --- Fix Issue: #14362 ### Motivation According to relative PR #7724, we will force delete all subscriptions when calling ``healthCheck`` REST API. but it has a race condition when two threads call this API. Please consider this case: > Thread A: Clean up all subscriptions, then create a reader. > Thread B: Prepare to force delete all subscriptions. So, in this case, the reader of thread A is deleted and then an NPE or other exception occurs. ### Modifications - Use ``Completable#handle`` to fix problem 1, the reader needs to be closed regardless of whether there is an exception. - Recheck the subscription after closing reading, and force deletion if it still exists after closing reading. - Added multi-threaded tests for health checks.
Nicklee007
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Apr 20, 2022
* Make ``BrokerBase#healthCheck`` to pure async. * fixes checkstyle
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Make
BrokerBase#healthCheckto pure async.Modifications
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