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From Lalit Jadhav <lalit.jad...@nciportal.com>
Subject Re: Unable to read from Kerberised HBase
Date Tue, 10 Jul 2018 08:35:15 GMT
Code Snipper:

Configuration configuration = HBaseConfiguration.create();
configuration.set("hbase.zookeeper.quorum",  "QUARAM");
    configuration.set("hbase.master", "MASTER");
    configuration.set("hbase.zookeeper.property.clientPort", "2181");
    configuration.set("hadoop.security.authentication", "kerberos");
    configuration.set("hbase.security.authentication", "kerberos");
    configuration.set("zookeeper.znode.parent", "/hbase-secure");
    configuration.set("hbase.cluster.distributed", "true");
    configuration.set("hbase.rpc.protection", "authentication");
    configuration.set("hbase.regionserver.kerberos.principal",
"hbase/Principal@realm");
    configuration.set("hbase.regionserver.keytab.file",
"/home/developers/Desktop/hbase.service.keytab3");
    configuration.set("hbase.master.kerberos.principal",
"hbase/HbasePrincipal@realm");
    configuration.set("hbase.master.keytab.file",
"/etc/security/keytabs/hbase.service.keytab");

    System.setProperty("java.security.krb5.conf","/etc/krb5.conf");

    String principal = System.getProperty("kerberosPrincipal",
"hbase/HbasePrincipal@realm");
    String keytabLocation = System.getProperty("kerberosKeytab",
"/etc/security/keytabs/hbase.service.keytab");
    UserGroupInformation.set    configuration(    configuration);
    UserGroupInformation.loginUserFromKeytab(principal, keytabLocation);
    UserGroupInformation userGroupInformation = UserGroupInformation.
loginUserFromKeytabAndReturnUGI("hbase/HbasePrincipal@realm",
"/etc/security/keytabs/hbase.service.keytab");
    UserGroupInformation.setLoginUser(userGroupInformation);

   Connection connection =
ConnectionFactory.createConnection(configuration);


Any more logs about login failure or success or related? - No, I only got
above logs.


On Tue, Jul 10, 2018 at 1:58 PM, Reid Chan <reidddchan@outlook.com> wrote:

> Any more logs about login failure or success or related?
>
> And can you show the code snippet of connection creation?
> ________________________________
> From: Lalit Jadhav <lalit.jadhav@nciportal.com>
> Sent: 10 July 2018 16:06:32
> To: user@hbase.apache.org
> Subject: Re: Unable to read from Kerberised HBase
>
> Table only contains 100 rows. Still not able to scan.
>
> On Tue, Jul 10, 2018, 12:21 PM anil gupta <anilgupta84@gmail.com> wrote:
>
> > As per error message, your scan ran for more than 1 minute but the
> timeout
> > is set for 1 minute. Hence the error. Try doing smaller scans or
> increasing
> > timeout.(PS: HBase is mostly good for short scan not for full table
> scans.)
> >
> > On Mon, Jul 9, 2018 at 8:37 PM, Lalit Jadhav <lalit.jadhav@nciportal.com
> >
> > wrote:
> >
> > > While connecting to remote HBase cluster, I can create Table and get
> > Table
> > > Listing.  But unable to scan Table using Java API. Below is code
> > >
> > >     configuration.set("hbase.zookeeper.quorum", "QUARAM");
> > >     configuration.set("hbase.master", "MASTER");
> > >     configuration.set("hbase.zookeeper.property.clientPort", "2181");
> > >     configuration.set("hadoop.security.authentication", "kerberos");
> > >     configuration.set("hbase.security.authentication", "kerberos");
> > >     configuration.set("zookeeper.znode.parent", "/hbase-secure");
> > >     configuration.set("hbase.cluster.distributed", "true");
> > >     configuration.set("hbase.rpc.protection", "authentication");
> > >     configuration.set("hbase.regionserver.kerberos.principal",
> > > "hbase/Principal@realm");
> > >     configuration.set("hbase.regionserver.keytab.file",
> > > "/home/developers/Desktop/hbase.service.keytab3");
> > >     configuration.set("hbase.master.kerberos.principal",
> > > "hbase/HbasePrincipal@realm");
> > >     configuration.set("hbase.master.keytab.file",
> > > "/etc/security/keytabs/hbase.service.keytab");
> > >
> > >     System.setProperty("java.security.krb5.conf","/etc/krb5.conf");
> > >
> > >     String principal = System.getProperty("kerberosPrincipal",
> > > "hbase/HbasePrincipal@realm");
> > >     String keytabLocation = System.getProperty("kerberosKeytab",
> > > "/etc/security/keytabs/hbase.service.keytab");
> > >     UserGroupInformation.set    configuration(    configuration);
> > >     UserGroupInformation.loginUserFromKeytab(principal,
> keytabLocation);
> > >     UserGroupInformation userGroupInformation =
> > > UserGroupInformation.loginUserFromKeytabAndReturnUG
> > > I("hbase/HbasePrincipal@realm",
> > > "/etc/security/keytabs/hbase.service.keytab");
> > >     UserGroupInformation.setLoginUser(userGroupInformation);
> > >
> > > I am getting bellow errors,
> > >
> > >     org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed
> > after
> > > attempts=36, exceptions: Mon Jul 09 18:45:57 IST 2018, null,
> > > java.net.SocketTimeoutException: callTimeout=60000,
> callDuration=64965:
> > > row
> > > '' on table 'DEMO_TABLE' at
> > > region=DEMO_TABLE,,1529819280641.40f0e7dc4159937619da237915be8b11.,
> > > hostname=dn1-devup.mstorm.com,60020,1531051433899, seqNum=526190
> > >
> > >     Exception : java.io.IOException: Failed to get result within
> timeout,
> > > timeout=60000ms
> > >
> > >
> > > --
> > > Regards,
> > > Lalit Jadhav
> > > Network Component Private Limited.
> > >
> >
> >
> >
> > --
> > Thanks & Regards,
> > Anil Gupta
> >
>



-- 
Regards,
Lalit Jadhav
Network Component Private Limited.

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