PHOENIX-7819 HighAvailabilityGroup.URLS inner Set must be thread-safe#2437
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apurtell wants to merge 1 commit intoapache:masterfrom
Open
PHOENIX-7819 HighAvailabilityGroup.URLS inner Set must be thread-safe#2437apurtell wants to merge 1 commit intoapache:masterfrom
apurtell wants to merge 1 commit intoapache:masterfrom
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When multiple threads register HA URL infos for the same
HAGroupInfo,computeIfAbsent()returns the same HashSet instance to every thread, which then concurrently calladd()on it.java.util.HashSetis not thread-safe. Concurrentadd()is undefined behavior and can lose entries.