Github user lvfangmin commented on a diff in the pull request: https://github.com/apache/zookeeper/pull/534#discussion_r194215559 --- Diff: src/java/main/org/apache/zookeeper/client/StaticHostProvider.java --- @@ -149,15 +185,12 @@ public StaticHostProvider(Collection<InetSocketAddress> serverAddresses, * @param currentHost the host to which this client is currently connected * @return true if changing connections is necessary for load-balancing, false otherwise */ - - @Override public synchronized boolean updateServerList( Collection<InetSocketAddress> serverAddresses, InetSocketAddress currentHost) { - // Resolve server addresses and shuffle them - List<InetSocketAddress> resolvedList = resolveAndShuffle(serverAddresses); - if (resolvedList.isEmpty()) { + List<InetSocketAddress> shuffledList = shuffle(serverAddresses); --- End diff -- After this change, the old / new server list both contains unresolved address, so it's comparable, but it's meaningless to compare addr.getAddress because it will return null when it's unresolved.
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