Hexiaoqiao commented on a change in pull request #2241:
URL: https://github.com/apache/hadoop/pull/2241#discussion_r476127785
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File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/net/NetUtils.java
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@@ -218,6 +211,28 @@ public static InetSocketAddress createSocketAddr(String
target,
return createSocketAddrForHost(host, port);
}
+ private static final Map<String, URI> URI_CACHE = new ConcurrentHashMap<>();
Review comment:
Thanks @1996fanrui for your proposal here.
A. Not sure if this improvement could impact some other modules because
{{NetUtil}} is very common util for different modules rather than DFSClient
only.
B. It is better to make the scope to DFSClient only if we could based on the
original description
[HADOOP-17222](https://issues.apache.org/jira/browse/HADOOP-17222).
C. add evict policy for {{URI_CACHE}}?
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