Kitti Nanasi created HDFS-13690:
-----------------------------------
Summary: Improve error message when creating encryption zone while
KMS is unreachable
Key: HDFS-13690
URL: https://issues.apache.org/jira/browse/HDFS-13690
Project: Hadoop HDFS
Issue Type: Improvement
Components: encryption, hdfs, kms
Reporter: Kitti Nanasi
Assignee: Kitti Nanasi
In failure testing, we stopped the KMS and then tried to run some encryption
related commands.
{{hdfs crypto -createZone}} will complain with a short "RemoteException:
Connection refused." This message could be improved to explain that we cannot
connect to the KMSClientProvier.
For example, {{hadoop key list}} while KMS is down will error:
-bash-4.1$ hadoop key list
Cannot list keys for KeyProvider:
KMSClientProvider[http://hdfs-cdh5-vanilla-1.vpc.cloudera.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)
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