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https://issues.apache.org/jira/browse/HADOOP-15596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16551509#comment-16551509
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Xiao Chen commented on HADOOP-15596:
------------------------------------
Thanks Kitti. +1 on patch 3, committing this.
> 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
> Priority: Minor
> Attachments: HADOOP-15596.001.patch, HADOOP-15596.002.patch,
> HADOOP-15596.003.patch
>
>
> 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:java}
> -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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