[jira] [Created] (HADOOP-15596) Stack trace should not be printed out when running hadoop key commands

["Kitti Nanasi (JIRA)" <ji...@apache.org>]

Kitti Nanasi created HADOOP-15596:
-------------------------------------

             Summary: Stack trace should not be printed out when running hadoop key commands
                 Key: HADOOP-15596
                 URL: https://issues.apache.org/jira/browse/HADOOP-15596
             Project: Hadoop Common
          Issue Type: Improvement
          Components: common
    Affects Versions: 3.1.0
            Reporter: Kitti Nanasi
            Assignee: Kitti Nanasi


Stack trace is printed out if any exception occurs while executing hadoop key commands. The whole stack trace should not be printed out.

For example when the kms is down, we get this error message for the hadoop key list command 

{code}
 -bash-4.1$ hadoop key list
 Cannot list keys for KeyProvider: KMSClientProvider[http://example.com:16000/kms/v1/]: Connection refusedjava.net.ConnectException: Connection refused
 at java.net.PlainSocketImpl.socketConnect(Native Method)
 at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
 at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
 at java.net.Socket.connect(Socket.java:579)
 at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
 at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
 at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
 at sun.net.www.http.HttpClient.New(HttpClient.java:308)
 at sun.net.www.http.HttpClient.New(HttpClient.java:326)
 at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:996)
 at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:932)
 at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:850)
 at org.apache.hadoop.security.authentication.client.KerberosAuthenticator.authenticate(KerberosAuthenticator.java:186)
 at org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticator.authenticate(DelegationTokenAuthenticator.java:125)
 at org.apache.hadoop.security.authentication.client.AuthenticatedURL.openConnection(AuthenticatedURL.java:216)
 at org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticatedURL.openConnection(DelegationTokenAuthenticatedURL.java:312)
 at org.apache.hadoop.crypto.key.kms.KMSClientProvider$1.run(KMSClientProvider.java:397)
 at org.apache.hadoop.crypto.key.kms.KMSClientProvider$1.run(KMSClientProvider.java:392)
 at java.security.AccessController.doPrivileged(Native Method)
 at javax.security.auth.Subject.doAs(Subject.java:415)
 at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614)
 at org.apache.hadoop.crypto.key.kms.KMSClientProvider.createConnection(KMSClientProvider.java:392)
 at org.apache.hadoop.crypto.key.kms.KMSClientProvider.getKeys(KMSClientProvider.java:479)
 at org.apache.hadoop.crypto.key.KeyShell$ListCommand.execute(KeyShell.java:286)
 at org.apache.hadoop.crypto.key.KeyShell.run(KeyShell.java:79)
 at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
 at org.apache.hadoop.crypto.key.KeyShell.main(KeyShell.java:513)
{code}



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