Return-Path: X-Original-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 8A0A1D713 for ; Tue, 21 May 2013 17:10:11 +0000 (UTC) Received: (qmail 43068 invoked by uid 500); 21 May 2013 17:10:06 -0000 Delivered-To: apmail-hadoop-hdfs-user-archive@hadoop.apache.org Received: (qmail 42790 invoked by uid 500); 21 May 2013 17:10:06 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 42782 invoked by uid 99); 21 May 2013 17:10:06 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 21 May 2013 17:10:06 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of zheyi.rong@gmail.com designates 209.85.212.43 as permitted sender) Received: from [209.85.212.43] (HELO mail-vb0-f43.google.com) (209.85.212.43) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 21 May 2013 17:09:59 +0000 Received: by mail-vb0-f43.google.com with SMTP id e15so608714vbg.30 for ; Tue, 21 May 2013 10:09:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:x-google-sender-delegation:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to :content-type; bh=H9MBe4QwV5JCbuiZA9cKaPbtCRKoLfQGExpRyURBeE0=; b=fumiSEoDg37cwsPyWkEpHTSPakxsgA2fiykpCPv4mmy6+MIBu5fVSuWMuDHJYd6A4z C02Bzkl83uom3Rzx+/7Z0epLzNimd1nlqa7ceVESG5XC0OZt+Z5V9bEsoH5JQVfgUtmV oV4erYhWE9gwy7Po1yONTQQjlB0/NeXgrSH1M7j8Pnlrk3h+235oly3GNQ4OfNj5KgWf TXQYlk6ujtm/Fx2ikRnKr4vkdqi1sKdBBt6eVvBSgQAb1N8ndeyf2EBvAu7ha4bkR7l0 ctlXicO/S6R79eBlq1Lo8azLKXW1qXyRIY6VzMW+hE/VOZriT0uKW9buz3fncFDs3PRY 3XLw== MIME-Version: 1.0 X-Received: by 10.52.25.40 with SMTP id z8mr1076954vdf.7.1369156178803; Tue, 21 May 2013 10:09:38 -0700 (PDT) Sender: rongzheyi@gmail.com X-Google-Sender-Delegation: rongzheyi@gmail.com Received: by 10.58.206.113 with HTTP; Tue, 21 May 2013 10:09:38 -0700 (PDT) In-Reply-To: References: Date: Tue, 21 May 2013 19:09:38 +0200 X-Google-Sender-Auth: 2AC058GDsfkbrFnd1fJgPv--VBM Message-ID: Subject: Re: Keep Kerberos credentials valid after logging out From: zheyi rong To: user@hadoop.apache.org Content-Type: multipart/alternative; boundary=20cf30780e56ae037d04dd3d8322 X-Virus-Checked: Checked by ClamAV on apache.org --20cf30780e56ae037d04dd3d8322 Content-Type: text/plain; charset=ISO-8859-1 Thanks for answering. but the same exceptions appeared: 13/05/21 19:07:01 ERROR security.UserGroupInformation: PriviledgedActionException as:s117449 (auth:KERBEROS) cause:javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] 13/05/21 19:07:01 WARN ipc.Client: Exception encountered while connecting to the server : javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] 13/05/21 19:07:01 ERROR security.UserGroupInformation: PriviledgedActionException as:s117449 (auth:KERBEROS) cause:java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] java.io.IOException: Call to p-head03.alley.sara.nl/145.100.41.4:8020failed on local exception: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] at org.apache.hadoop.ipc.Client.wrapException(Client.java:1187) at org.apache.hadoop.ipc.Client.call(Client.java:1155) at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:226) at $Proxy5.getProtocolVersion(Unknown Source) at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:398) at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:384) at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:132) at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:259) at org.apache.hadoop.hdfs.DFSClient.(DFSClient.java:220) at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1603) at org.apache.hadoop.fs.FileSystem.access$300(FileSystem.java:69) at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:1637) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1619) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:255) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:124) at edu.tue.cs.capa.dps.freq.FreqDriver.run(FreqDriver.java:58) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) at edu.tue.cs.capa.dps.freq.FreqDriver.main(FreqDriver.java:112) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68) at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139) at edu.tue.cs.capa.dps.driver.SamplingDriver.main(SamplingDriver.java:21) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.util.RunJar.main(RunJar.java:197) Caused by: java.io.IOException: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:554) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1278) at org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:499) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:601) at org.apache.hadoop.ipc.Client$Connection.access$2300(Client.java:212) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1292) at org.apache.hadoop.ipc.Client.call(Client.java:1121) ... 30 more Caused by: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)] at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:194) at org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:134) at org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:415) at org.apache.hadoop.ipc.Client$Connection.access$1100(Client.java:212) at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:594) at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:591) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1278) at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:590) ... 33 more Caused by: GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt) at sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential.java:130) at sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:106) at sun.security.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:172) at sun.security.jgss.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java:209) at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:195) at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:162) at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:175) ... 42 more Regards, Zheyi Rong On Tue, May 21, 2013 at 3:22 PM, Azuryy Yu wrote: > nohup ./your_bash 1>temp.log 2>&1 & > > --Send from my Sony mobile. > On May 21, 2013 6:32 PM, "zheyi rong" wrote: > >> Hi all, >> >> I would like to run my hadoop job in a bash file for several times, e.g. >> #!/usr/bin/env bash >> for i in {1..10} >> do >> my-hadoop-job >> done >> >> Since I don't want to keep my laptop on for hours, I run this bash script >> on a server >> via a SSH session. >> >> However, the bash script always terminated after my logging out of that >> server by >> 'ctrl-z, bg, disown, exit'. >> >> Using GNU 'screen' detaching and reattaching, I can see the following >> exceptions: >> >> Caused by: java.io.IOException: javax.security.sasl.SaslException: GSS >> initiate failed [Caused by GSSException: No valid credentials provided >> (Mechanism level: Failed to find any Kerberos tgt)] >> at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:554) >> at java.security.AccessController.doPrivileged(Native Method) >> at javax.security.auth.Subject.doAs(Subject.java:396) >> at >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1278) >> at >> org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:499) >> at >> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:601) >> at >> org.apache.hadoop.ipc.Client$Connection.access$2300(Client.java:212) >> at org.apache.hadoop.ipc.Client.getConnection(Client.java:1292) >> at org.apache.hadoop.ipc.Client.call(Client.java:1121) >> ... 30 more >> Caused by: javax.security.sasl.SaslException: GSS initiate failed [Caused >> by GSSException: No valid credentials provided (Mechanism level: Failed to >> find any Kerberos tgt)] >> at >> com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:194) >> at >> org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:134) >> at >> org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:415) >> at >> org.apache.hadoop.ipc.Client$Connection.access$1100(Client.java:212) >> at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:594) >> at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:591) >> at java.security.AccessController.doPrivileged(Native Method) >> at javax.security.auth.Subject.doAs(Subject.java:396) >> at >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1278) >> at >> org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:590) >> ... 33 more >> Caused by: GSSException: No valid credentials provided (Mechanism level: >> Failed to find any Kerberos tgt) >> at >> sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential.java:130) >> at >> sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:106) >> at >> sun.security.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:172) >> at >> sun.security.jgss.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java:209) >> at >> sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:195) >> at >> sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:162) >> at >> com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:175) >> ... 42 more >> >> The cluster is deployed with cdh3. >> >> so how can I keep my script running after logging out ? >> >> Thank you in advance. >> >> Regards, >> Zheyi Rong >> > --20cf30780e56ae037d04dd3d8322 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Thanks for answering.

but the sam= e exceptions appeared:

13/05/21 1= 9:07:01 ERROR security.UserGroupInformation: PriviledgedActionException as:= s117449 (auth:KERBEROS) cause:javax.security.sasl.SaslException: GSS initia= te failed [Caused by GSSException: No valid credentials provided (Mechanism= level: Failed to find any Kerberos tgt)]
13/05/21 19:07:01 WARN ipc.Client: Exception encountered while connect= ing to the server : javax.security.sasl.SaslException: GSS initiate failed = [Caused by GSSException: No valid credentials provided (Mechanism level: Fa= iled to find any Kerberos tgt)]
13/05/21 19:07:01 ERROR security.UserGroupInformation: PriviledgedActi= onException as:s117449 (auth:KERBEROS) cause:java.io.IOException: javax.sec= urity.sasl.SaslException: GSS initiate failed [Caused by GSSException: No v= alid credentials provided (Mechanism level: Failed to find any Kerberos tgt= )]
java.io.IOException: Call to p-head03.alley.sara.nl/145.100.41.4:8020 failed on l= ocal exception: java.io.IOException: javax.security.sasl.SaslException: GSS= initiate failed [Caused by GSSException: No valid credentials provided (Me= chanism level: Failed to find any Kerberos tgt)]
at org.apache.hadoo= p.ipc.Client.wrapException(Client.java:1187)
at org.apache.hadoop.ipc.Client.call(Client.= java:1155)
at org.apache.hadoo= p.ipc.RPC$Invoker.invoke(RPC.java:226)
at $Proxy5.getProtocolVersion(Unknown Source)
at org.apache.hadoop.ipc= .RPC.getProxy(RPC.java:398)
at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:384)
at org.apache.hadoop.hd= fs.DFSClient.createRPCNamenode(DFSClient.java:132)
at org.apache.hadoo= p.hdfs.DFSClient.<init>(DFSClient.java:259)
at org.apache.hadoop.hdfs.DFSClient.<= ;init>(DFSClient.java:220)
at org.apache.hadoo= p.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)
at org.apache.hado= op.fs.FileSystem.createFileSystem(FileSystem.java:1603)
at org.apache.hadoo= p.fs.FileSystem.access$300(FileSystem.java:69)
at org.apache.hadoop.fs.FileSystem$Cache.g= etInternal(FileSystem.java:1637)
at org.apache.hadoo= p.fs.FileSystem$Cache.get(FileSystem.java:1619)
at org.apache.hadoop.fs.FileSystem.get(Fi= leSystem.java:255)
at org.apache.hadoo= p.fs.FileSystem.get(FileSystem.java:124)
at edu.tue.cs.capa.dps.freq.FreqDriver.run(Fre= qDriver.java:58)
at org.apache.hadoo= p.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolR= unner.java:79)
at edu.tue.cs.capa.= dps.freq.FreqDriver.main(FreqDriver.java:112)
at sun.reflect.NativeMethodAccessorImpl.inv= oke0(Native Method)
at sun.reflect.Nati= veMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMe= thodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflec= t.Method.invoke(Method.java:597)
at org.apache.hadoop.util.ProgramDriver$ProgramDescripti= on.invoke(ProgramDriver.java:68)
at org.apache.hadoo= p.util.ProgramDriver.driver(ProgramDriver.java:139)
at edu.tue.cs.capa.dps.driver.Sampl= ingDriver.main(SamplingDriver.java:21)
at sun.reflect.Nati= veMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invok= e(NativeMethodAccessorImpl.java:39)
at sun.reflect.Dele= gatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
=
at java.lang.reflec= t.Method.invoke(Method.java:597)
at org.apache.hadoo= p.util.RunJar.main(RunJar.java:197)
Caused by: java.io.IOExceptio= n: javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSExc= eption: No valid credentials provided (Mechanism level: Failed to find any = Kerberos tgt)]
at org.apache.hadoo= p.ipc.Client$Connection$1.run(Client.java:554)
at java.security.AccessController.doPrivil= eged(Native Method)
at javax.security.a= uth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doA= s(UserGroupInformation.java:1278)
at org.apache.hadoo= p.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:499)
<= div> at org.apache.hadoop= .ipc.Client$Connection.setupIOstreams(Client.java:601)
at org.apache.hadoo= p.ipc.Client$Connection.access$2300(Client.java:212)
at org.apache.hadoop.ipc.Client.get= Connection(Client.java:1292)
at org.apache.hadoo= p.ipc.Client.call(Client.java:1121)
... 30 more
Caused by: javax.security.sasl.= SaslException: GSS initiate failed [Caused by GSSException: No valid creden= tials provided (Mechanism level: Failed to find any Kerberos tgt)]
at com.sun.security= .sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:194)
=
at org.apache.hadoo= p.security.SaslRpcClient.saslConnect(SaslRpcClient.java:134)
at org.apache.hadoo= p.ipc.Client$Connection.setupSaslConnection(Client.java:415)
at org.apache.hadoop.ipc.Cli= ent$Connection.access$1100(Client.java:212)
at org.apache.hadoo= p.ipc.Client$Connection$2.run(Client.java:594)
at org.apache.hadoop.ipc.Client$Connection= $2.run(Client.java:591)
at java.security.Ac= cessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.ja= va:396)
at org.apache.hadoo= p.security.UserGroupInformation.doAs(UserGroupInformation.java:1278)
<= div> at org.apache.hadoop= .ipc.Client$Connection.setupIOstreams(Client.java:590)
... 33 more
Caused by: GSSException: No valid credentials provided (Mechanism level:= Failed to find any Kerberos tgt)
at sun.security.jgss.krb5.Krb5InitCredential.getInstanc= e(Krb5InitCredential.java:130)
at sun.security.jgs= s.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:106)
=
at sun.security.jgs= s.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:172)
at sun.security.jgs= s.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java:209)
at sun.security.jgss.GSSCon= textImpl.initSecContext(GSSContextImpl.java:195)
at sun.security.jgs= s.GSSContextImpl.initSecContext(GSSContextImpl.java:162)
at com.sun.security.sasl.gsskerb= .GssKrb5Client.evaluateChallenge(GssKrb5Client.java:175)
... 42 more


=
Regards,
Zheyi Rong


On Tue, May 21, 2013 at 3:22 PM, Azuryy = Yu <azuryyyu@gmail.com> wrote:

nohup=A0 ./your_bash=A0 1>temp.log 2>&1 &

--Send from my Sony mobile.

On May 21, 2013 6:32 PM, "zheyi rong" = <zheyi.rong@gm= ail.com> wrote:
Hi all,

I would like to run my hadoop j= ob in a bash file for several times, e.g.
#!/usr/bin/env bash
for i in {1..10}
=A0 =A0 do
=A0 =A0 =A0 =A0 my-h= adoop-job
=A0 =A0 done

Since I don't want to keep m= y laptop on for hours, I run this bash script on a server
via a S= SH session.

However, the bash script always termin= ated after my logging out of that server by=A0
'ctrl-z, bg, disown, exit'.

Using GNU= 'screen' detaching and reattaching, I can see the following except= ions:

Caused by: java.io.IOException: javax.s= ecurity.sasl.SaslException: GSS initiate failed [Caused by GSSException: No= valid credentials provided (Mechanism level: Failed to find any Kerberos t= gt)]
=A0 =A0 =A0 =A0 at org.apache.hadoop.ipc.Client$Connection$1.run(Clien= t.java:554)
=A0 =A0 =A0 =A0 at java.security.AccessController.doP= rivileged(Native Method)
=A0 =A0 =A0 =A0 at javax.security.auth.S= ubject.doAs(Subject.java:396)
=A0 =A0 =A0 =A0 at org.apache.hadoop.security.UserGroupInformation.doA= s(UserGroupInformation.java:1278)
=A0 =A0 =A0 =A0 at org.apache.h= adoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:499)
=A0 =A0 =A0 =A0 at org.apache.hadoop.ipc.Client$Connection.setupIOs= treams(Client.java:601)
=A0 =A0 =A0 =A0 at org.apache.hadoop.ipc.Client$Connection.access$2300= (Client.java:212)
=A0 =A0 =A0 =A0 at org.apache.hadoop.ipc.Client= .getConnection(Client.java:1292)
=A0 =A0 =A0 =A0 at org.apache.ha= doop.ipc.Client.call(Client.java:1121)
=A0 =A0 =A0 =A0 ... 30 more
Caused by: javax.security.sasl.S= aslException: GSS initiate failed [Caused by GSSException: No valid credent= ials provided (Mechanism level: Failed to find any Kerberos tgt)]
=A0 =A0 =A0 =A0 at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateCha= llenge(GssKrb5Client.java:194)
=A0 =A0 =A0 =A0 at org.apache.hadoop.security.SaslRpcClient.saslConnec= t(SaslRpcClient.java:134)
=A0 =A0 =A0 =A0 at org.apache.hadoop.ip= c.Client$Connection.setupSaslConnection(Client.java:415)
=A0 =A0 = =A0 =A0 at org.apache.hadoop.ipc.Client$Connection.access$1100(Client.java:= 212)
=A0 =A0 =A0 =A0 at org.apache.hadoop.ipc.Client$Connection$2.run(Clien= t.java:594)
=A0 =A0 =A0 =A0 at org.apache.hadoop.ipc.Client$Conne= ction$2.run(Client.java:591)
=A0 =A0 =A0 =A0 at java.security.Acc= essController.doPrivileged(Native Method)
=A0 =A0 =A0 =A0 at javax.security.auth.Subject.doAs(Subject.java:396)<= /div>
=A0 =A0 =A0 =A0 at org.apache.hadoop.security.UserGroupInformatio= n.doAs(UserGroupInformation.java:1278)
=A0 =A0 =A0 =A0 at org.apa= che.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:590)
=A0 =A0 =A0 =A0 ... 33 more
Caused by: GSSException: No vali= d credentials provided (Mechanism level: Failed to find any Kerberos tgt)
=A0 =A0 =A0 =A0 at sun.security.jgss.krb5.Krb5InitCredential.getIn= stance(Krb5InitCredential.java:130)
=A0 =A0 =A0 =A0 at sun.security.jgss.krb5.Krb5MechFactory.getCredentia= lElement(Krb5MechFactory.java:106)
=A0 =A0 =A0 =A0 at sun.securit= y.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:172)
=A0 =A0 =A0 =A0 at sun.security.jgss.GSSManagerImpl.getMechanismCo= ntext(GSSManagerImpl.java:209)
=A0 =A0 =A0 =A0 at sun.security.jgss.GSSContextImpl.initSecContext(GSS= ContextImpl.java:195)
=A0 =A0 =A0 =A0 at sun.security.jgss.GSSCon= textImpl.initSecContext(GSSContextImpl.java:162)
=A0 =A0 =A0 =A0 = at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Cli= ent.java:175)
=A0 =A0 =A0 =A0 ... 42 more

The cluster is de= ployed with cdh3.

so how can I keep my s= cript running after logging out ?

Thank you in advance.

Regards,
Z= heyi Rong

--20cf30780e56ae037d04dd3d8322--