lei w created HDFS-16073:
----------------------------
Summary: Remove redundant RPC requests for getFileLinkInfo in
ClientNamenodeProtocolTranslatorPB
Key: HDFS-16073
URL: https://issues.apache.org/jira/browse/HDFS-16073
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: lei w
Remove redundant RPC requests for getFileLinkInfo in
ClientNamenodeProtocolTranslatorPB. The original logic is as follows：
{code:java}
@Override
public HdfsFileStatus getFileLinkInfo(String src) throws IOException {
GetFileLinkInfoRequestProto req = GetFileLinkInfoRequestProto.newBuilder()
.setSrc(src).build();
try {
GetFileLinkInfoResponseProto result = rpcProxy.getFileLinkInfo(null,
req);// First getFileLinkInfo RPC request
return result.hasFs() ?
PBHelperClient.convert(rpcProxy.getFileLinkInfo(null, req).getFs()) ://
Repeated getFileLinkInfo RPC request
null;
} catch (ServiceException e) {
throw ProtobufHelper.getRemoteException(e);
}
}
{code}
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