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From "lk_hadoop"<lk_had...@163.com>
Subject Re: Re: hdfs2.7.3 not work with kerberos
Date Thu, 22 Sep 2016 01:05:09 GMT
Thank you Rakesh ,  Problem have been resolved.  
I should not config : default_ccache_name = KEYRING:persistent:%{uid} in krb5.conf. It's not
work for hadoop.

2016-09-22 

lk_hadoop 



发件人:Rakesh Radhakrishnan <rakeshr@apache.org>
发送时间:2016-09-21 23:25
主题:Re: hdfs2.7.3 not work with kerberos
收件人:"lk_hadoop"<lk_hadoop@163.com>
抄送:"user"<user@hadoop.apache.org>

I could see "Ticket cache: KEYRING:persistent:1004:1004" in your env.


May be KEYRING persistent cache setting is causing trouble, Kerberos libraries to store the
krb cache in a location and the Hadoop libraries can't seem to access it.


Please refer these links,
https://community.hortonworks.com/questions/818/ipa-kerberos-not-liking-my-kinit-ticket.html
https://community.hortonworks.com/articles/11291/kerberos-cache-in-ipa-redhat-idm-keyring-solved-1.html


Rakesh

Intel


On Wed, Sep 21, 2016 at 3:01 PM, lk_hadoop <lk_hadoop@163.com> wrote:

hi,all:
My environment : Centos7.2 hadoop2.7.3 jdk1.8 kerberos 1.13.2-12.el7_2
my hadoop user is hadoop,now I can startup hdfs with sbin/start-dfs.sh and I can see data
node from the web.
but when I try to hdfs dfs -ls / ,I got error:

[hadoop@dmp1 ~]$ hdfs dfs -ls /
16/09/20 15:00:44 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)]
ls: Failed 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)]; Host Details : local host is: "dmp1.example.com/192.168.249.129";
destination host is: "dmp1.example.com":9000; 
[hadoop@dmp1 ~]$ klist
Ticket cache: KEYRING:persistent:1004:1004
Default principal: hadoop@EXAMPLE.COM

Valid starting       Expires              Service principal
09/20/2016 14:57:34  09/21/2016 14:57:31  krbtgt/EXAMPLE.COM@EXAMPLE.COM
 renew until 09/27/2016 14:57:31
[hadoop@dmp1 ~]$ 

It's because of my jdk is 1.8 ?

2016-09-21


lk_hadoop 
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