caishunfeng commented on code in PR #16021:
URL:
https://github.com/apache/dolphinscheduler/pull/16021#discussion_r1604441464
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dolphinscheduler-extract/dolphinscheduler-extract-base/src/main/java/org/apache/dolphinscheduler/extract/base/client/NettyRemotingClient.java:
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@@ -54,7 +56,8 @@ public class NettyRemotingClient implements AutoCloseable {
private final Bootstrap bootstrap = new Bootstrap();
- private final ConcurrentHashMap<Host, Channel> channels = new
ConcurrentHashMap<>(128);
+ private final ReentrantLock channelsLock = new ReentrantLock();
Review Comment:
Is it better to use `ReentrantReadWriteLock`?
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