Fix deadlock in Consul RTT. #2130
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- consul/rtt.go:388: s.getDatacentersByDistance(). Acquires RLock() - consul/rtt.go:341: sortDatacentersByDistance() RLock still held. - consul/rtt.go:282: getDatacenterDistance() RLock still held. - consul/rtt.go:268: getNodesForDatacenter(). Attempts to reacquire RLock(), hangs indefinitely.
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LGTM |
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consul/rtt.go:388:getDatacentersByDistance()==remoteLock.RLock()consul/rtt.go:341:sortDatacentersByDistance()==RLock()still heldconsul/rtt.go:282:getDatacenterDistance()==RLock()still held.consul/rtt.go:268:getNodesForDatacenter()== Attempt to reacquireremoteLock.RLock(), task hangs indefinitely blocking all future readers and writers accessingremoteConsuls.