ruanwenjun commented on code in PR #16021:
URL:
https://github.com/apache/dolphinscheduler/pull/16021#discussion_r1605676733
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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();
+ private final Map<Host, Channel> channels = new ConcurrentHashMap<>();
Review Comment:
I hope we can remove this capacity, in fact, most user's instances number is
small then 20, we cannot set a correct capacity for this map. So it might be
better to use the default value.
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