ZOOKEEPER-4810: Fix buf data race at format_endpoint_info() #2140
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format_endpoint_info() is widely called in the IO thread. And the some ZOOAPIs will call this method too: zoo_cycle_next_server() and zoo_get_current_server(). These APIs return the same static buffer read/write by IO thread causes data race.
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format_endpoint_info() is widely called in the IO thread. And the some ZOOAPIs will call this method too: zoo_cycle_next_server() and zoo_get_current_server(). These APIs return the same static buffer read/write by IO thread causes data race.