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From "Abhishek Kumar (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-14771) RpcServer.getRemoteAddress always returns null.
Date Thu, 05 Nov 2015 13:30:27 GMT
Abhishek Kumar created HBASE-14771:
--------------------------------------

             Summary: RpcServer.getRemoteAddress always returns null.
                 Key: HBASE-14771
                 URL: https://issues.apache.org/jira/browse/HBASE-14771
             Project: HBase
          Issue Type: Bug
          Components: IPC/RPC
    Affects Versions: 1.2.0
            Reporter: Abhishek Kumar
            Assignee: Abhishek Kumar
            Priority: Minor


RpcServer.getRemoteAddress always returns null, because Call object is getting initialized
with null.This seems to be happening because of using RpcServer.getRemoteIp() in  Call object
constructor before RpcServer thread local 'CurCall' being set in CallRunner.run method:
{noformat}
// --- RpcServer.java ---
protected void processRequest(byte[] buf) throws IOException, InterruptedException {
 .................................
// Call object getting initialized here with address 
// obtained from RpcServer.getRemoteIp()
Call call = new Call(id, this.service, md, header, param, cellScanner, this, responder,
              totalRequestSize, traceInfo, RpcServer.getRemoteIp());
  scheduler.dispatch(new CallRunner(RpcServer.this, call));
 }

// getRemoteIp method gets address from threadlocal 'CurCall' which 
// gets set in CallRunner.run and calling it before this as in above case, will return null
// --- CallRunner.java ---
public void run() {
  .........................   
  Pair<Message, CellScanner> resultPair = null;
  RpcServer.CurCall.set(call);
  ..............................
}

// Using 'this.addr' in place of getRemoteIp method in RpcServer.java seems to be fixing this
issue
Call call = new Call(id, this.service, md, header, param, cellScanner, this, responder,
              totalRequestSize, traceInfo, this.addr);
{noformat}




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