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https://issues.apache.org/jira/browse/HDFS-13690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16520503#comment-16520503
]
Kitti Nanasi commented on HDFS-13690:
-------------------------------------
The new output looks like this now:
{code}
root@ad1edbfc9866:/# hdfs crypto -createZone -keyName mykey -path /zone
Could not create encryption zone:
org.apache.hadoop.ipc.RemoteException(java.io.IOException): Failed to connect
to: http://localhost:9600/kms/v1/key/mykey/_metadata
at
org.apache.hadoop.crypto.key.kms.KMSClientProvider.createConnection(KMSClientProvider.java:486)
at
org.apache.hadoop.crypto.key.kms.KMSClientProvider.getMetadata(KMSClientProvider.java:894)
at
org.apache.hadoop.crypto.key.kms.LoadBalancingKMSClientProvider$13.call(LoadBalancingKMSClientProvider.java:394)
at
org.apache.hadoop.crypto.key.kms.LoadBalancingKMSClientProvider$13.call(LoadBalancingKMSClientProvider.java:391)
at
org.apache.hadoop.crypto.key.kms.LoadBalancingKMSClientProvider.doOp(LoadBalancingKMSClientProvider.java:124)
at
org.apache.hadoop.crypto.key.kms.LoadBalancingKMSClientProvider.getMetadata(LoadBalancingKMSClientProvider.java:391)
at
org.apache.hadoop.crypto.key.KeyProviderExtension.getMetadata(KeyProviderExtension.java:100)
at
org.apache.hadoop.hdfs.server.namenode.FSDirEncryptionZoneOp.ensureKeyIsInitialized(FSDirEncryptionZoneOp.java:125)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.createEncryptionZone(FSNamesystem.java:7131)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.createEncryptionZone(NameNodeRpcServer.java:2055)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.createEncryptionZone(ClientNamenodeProtocolServerSideTranslatorPB.java:1449)
at
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:523)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:991)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:869)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:815)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1685)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2675)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
at sun.net.www.http.HttpClient.New(HttpClient.java:339)
at sun.net.www.http.HttpClient.New(HttpClient.java:357)
at
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
at
sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
at
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
at
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
at
org.apache.hadoop.security.authentication.client.KerberosAuthenticator.authenticate(KerberosAuthenticator.java:186)
at
org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticator.authenticate(DelegationTokenAuthenticator.java:144)
at
org.apache.hadoop.security.authentication.client.AuthenticatedURL.openConnection(AuthenticatedURL.java:348)
at
org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticatedURL.openConnection(DelegationTokenAuthenticatedURL.java:333)
at
org.apache.hadoop.crypto.key.kms.KMSClientProvider$1.run(KMSClientProvider.java:482)
at
org.apache.hadoop.crypto.key.kms.KMSClientProvider$1.run(KMSClientProvider.java:477)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1685)
at
org.apache.hadoop.crypto.key.kms.KMSClientProvider.createConnection(KMSClientProvider.java:476)
... 19 more
{code}
I didn't use the prettifyException, because if we catch an IOException which
doesn't have a descriptive message (like the one in the task description), then
the message print out will not say much.
> Improve error message when creating encryption zone while KMS is unreachable
> ----------------------------------------------------------------------------
>
> Key: HDFS-13690
> URL: https://issues.apache.org/jira/browse/HDFS-13690
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: encryption, hdfs, kms
> Reporter: Kitti Nanasi
> Assignee: Kitti Nanasi
> Priority: Minor
> Attachments: HDFS-13690.001.patch
>
>
> In failure testing, we stopped the KMS and then tried to run some encryption
> related commands.
> {{hdfs crypto -createZone}} will complain with a short "RemoteException:
> Connection refused." This message could be improved to explain that we cannot
> connect to the KMSClientProvier.
> For example, {{hadoop key list}} while KMS is down will error:
> {code}
> -bash-4.1$ 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)
> {code}
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