risdenk commented on a change in pull request #528:
URL: https://github.com/apache/knox/pull/528#discussion_r782296627



##########
File path: 
gateway-test-release/webhdfs-kerb-test/src/test/resources/org/apache/knox/gateway/SecureKnoxShellTest/SecureWebHdfsPutGet.groovy
##########
@@ -30,6 +30,7 @@ session = KnoxSession.kerberosLogin(gateway, jaasConf, 
krb5conf, true)
 status = Hdfs.status(session).file( "/" ).now().string
 
 Hdfs.put( session ).file( file ).to( dataDir + "/" + dataFile ).now()
+Thread.sleep(1000)

Review comment:
       Why are these `Thread.sleep` necessary? Does the hdfs put not actually 
return when the file is created? Is there a different HDFS call that we can 
check the file exists? Like `Hdfs.status` as done on line 30? 




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