slfan1989 commented on PR #5363:
URL: https://github.com/apache/hadoop/pull/5363#issuecomment-1499065726
@goiri This pr may not be able to clean bulid, I read this part of the code
carefully.
The javac warning should be caused by a new proto code added to this pr.
```
message DeregisterSubClustersProto {
optional string subClusterId = 1;
optional string deregisterState = 2;
optional string lastHeartBeatTime = 3;
optional string information = 4;
optional string subClusterState = 5;
}
```
This code will be directly compiled into `DeregisterSubClustersProto.java`
by protobuf.
```
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/target/
generated-sources/java/org/apache/hadoop/yarn/proto/YarnServerResourceManagerServiceProtos.java:18867:102:
[deprecation] PARSER in DeregisterSubClustersProto has been deprecated
```
We can check the following issue, the current version of protobuf does not
seem to be able to solve it.
https://github.com/protocolbuffers/protobuf/issues/7271
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