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Posted to dev@hbase.apache.org by Yu...@DELL.com on 2015/04/08 19:20:52 UTC

is there any way to configure hbase (0.94.15) so that the flag 'IS_HADOOP_SECURE' becomes false?

Hi All,

I'm using an HBase client deployed in OSGI Karaf console and in some scenarios, it's causing trouble for me to get connection to HBase server. I dug into the root cause and found in some cases, when the HConnectionManager tries to get connection by calling HConnectionKey(conf), it runs User.getCurrent(), and eventually called UserGroupInformation.getCurrentUser(). In the case when IS_HADOOP_SECURE is on, it throws exception.

I was wondering if there's any configuration in HBase that we can use to turn 'IS_HADOOP_SECURE' to false?

Thanks very much,
YuLing

RE: is there any way to configure hbase (0.94.15) so that the flag 'IS_HADOOP_SECURE' becomes false?

Posted by Yu...@DELL.com.
Dell Customer Communication
Thanks Andrew. I'll give it a try.

B.T.W., does hbase 0.94.15 work with lower Hadoop version such as 1.0.0 or 1.0.3?

Thanks,

YuLing

-----Original Message-----
From: Andrew Purtell [mailto:apurtell@apache.org]
Sent: Wednesday, April 08, 2015 5:19 PM
To: dev@hbase.apache.org
Subject: Re: is there any way to configure hbase (0.94.15) so that the flag 'IS_HADOOP_SECURE' becomes false?

Have you tried emailing user@hadoop.apache.org for help?

Hadoop 1.0.x is extremely old and unlikely to attract any community support for it, though.

On Wed, Apr 8, 2015 at 1:36 PM, wrote:

> Hi All,
>
>
>
> I actually looked into the Hadoop core source code a bit more and
> understood that 'IS_HADOOP_SECURE' flag is set not from the
> configuration files, but from checking if the method
> 'isSecurityEnabled' exists in UserGroupInformation class in Hadoop core.
>
>
>
> I also debugged and found out the problem happens when running
> subject.getPrincipals(User.class). Since this returns empty set, the
> .iterator().next() throws NoSuchMethodException.
>
> The question is that a) it seems to be a bug in Hadoop core 1.0.4. Is
> there any version that fixes this bug?
>
> b) We do not care about the security
> feature in Hadoop core ( at least not at this stage), is there any
> lower version of Hadoop core that can work with HBase 0.94.15?
>
> c) Any other suggestions for us to
> work around this issue?
>
>
>
> Thanks very much,
>
> YuLing
>
>
>
>
>
> -----Original Message-----
> From: C, Yuling
> Sent: Wednesday, April 08, 2015 10:21 AM
> To: dev@hbase.apache.org
> Subject: is there any way to configure hbase (0.94.15) so that the
> flag 'IS_HADOOP_SECURE' becomes false?
>
> Hi All,
>
> I'm using an HBase client deployed in OSGI Karaf console and in some
> scenarios, it's causing trouble for me to get connection to HBase
> server. I dug into the root cause and found in some cases, when the
> HConnectionManager tries to get connection by calling
> HConnectionKey(conf), it runs User.getCurrent(), and eventually called
> UserGroupInformation.getCurrentUser(). In the case when
> IS_HADOOP_SECURE is on, it throws exception.
>
> I was wondering if there's any configuration in HBase that we can use
> to turn 'IS_HADOOP_SECURE' to false?
>
> Thanks very much,
> YuLing
>



--
Best regards,

- Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein (via Tom White)

Re: is there any way to configure hbase (0.94.15) so that the flag 'IS_HADOOP_SECURE' becomes false?

Posted by Andrew Purtell <ap...@apache.org>.
Have you tried emailing user@hadoop.apache.org for help?

Hadoop 1.0.x is extremely old and unlikely to attract any community support
for it, though.

On Wed, Apr 8, 2015 at 1:36 PM, <Yu...@dell.com> wrote:

> Hi All,
>
>
>
> I actually looked into the Hadoop core source code a bit more and
> understood that ‘IS_HADOOP_SECURE’ flag is set not from the configuration
> files, but from checking if the method ‘isSecurityEnabled’ exists in
> UserGroupInformation class in Hadoop core.
>
>
>
> I also debugged and found out the problem happens when running
> subject.getPrincipals(User.class). Since this returns empty set, the
> .iterator().next() throws NoSuchMethodException.
>
> The question is that a) it seems to be a bug in Hadoop core 1.0.4. Is
> there any version that fixes this bug?
>
>                                  b) We do not care about the security
> feature in Hadoop core ( at least not at this stage), is there any lower
> version of Hadoop core that can work with HBase 0.94.15?
>
>                                  c) Any other suggestions for us to work
> around this issue?
>
>
>
> Thanks very much,
>
> YuLing
>
>
>
>
>
> -----Original Message-----
> From: C, Yuling
> Sent: Wednesday, April 08, 2015 10:21 AM
> To: dev@hbase.apache.org
> Subject: is there any way to configure hbase (0.94.15) so that the flag
> 'IS_HADOOP_SECURE' becomes false?
>
> Hi All,
>
> I'm using an HBase client deployed in OSGI Karaf console and in some
> scenarios, it's causing trouble for me to get connection to HBase server. I
> dug into the root cause and found in some cases, when the
> HConnectionManager tries to get connection by calling HConnectionKey(conf),
> it runs User.getCurrent(), and eventually called
> UserGroupInformation.getCurrentUser(). In the case when IS_HADOOP_SECURE is
> on, it throws exception.
>
> I was wondering if there's any configuration in HBase that we can use to
> turn 'IS_HADOOP_SECURE' to false?
>
> Thanks very much,
> YuLing
>



-- 
Best regards,

   - Andy

Problems worthy of attack prove their worth by hitting back. - Piet Hein
(via Tom White)

RE: is there any way to configure hbase (0.94.15) so that the flag 'IS_HADOOP_SECURE' becomes false?

Posted by Yu...@DELL.com.
Hi All,

I actually looked into the Hadoop core source code a bit more and understood that 'IS_HADOOP_SECURE' flag is set not from the configuration files, but from checking if the method 'isSecurityEnabled' exists in UserGroupInformation class in Hadoop core.

I also debugged and found out the problem happens when running subject.getPrincipals(User.class). Since this returns empty set, the .iterator().next() throws NoSuchMethodException.
[cid:image001.png@01D07200.B393AAB0]

The question is that a) it seems to be a bug in Hadoop core 1.0.4. Is there any version that fixes this bug?

                                 b) We do not care about the security feature in Hadoop core ( at least not at this stage), is there any lower version of Hadoop core that can work with HBase 0.94.15?

                                 c) Any other suggestions for us to work around this issue?



Thanks very much,

YuLing





-----Original Message-----
From: C, Yuling
Sent: Wednesday, April 08, 2015 10:21 AM
To: dev@hbase.apache.org
Subject: is there any way to configure hbase (0.94.15) so that the flag 'IS_HADOOP_SECURE' becomes false?

Hi All,

I'm using an HBase client deployed in OSGI Karaf console and in some scenarios, it's causing trouble for me to get connection to HBase server. I dug into the root cause and found in some cases, when the HConnectionManager tries to get connection by calling HConnectionKey(conf), it runs User.getCurrent(), and eventually called UserGroupInformation.getCurrentUser(). In the case when IS_HADOOP_SECURE is on, it throws exception.

I was wondering if there's any configuration in HBase that we can use to turn 'IS_HADOOP_SECURE' to false?

Thanks very much,
YuLing

Re: is there any way to configure hbase (0.94.15) so that the flag 'IS_HADOOP_SECURE' becomes false?

Posted by Esteban Gutierrez <es...@cloudera.com>.
bcc: -dev +user@hbase

YuLing,

Are you providing hbase.security.authentication in the configuration? also
can you please let us know what is the exact exception that you getting?

thanks!
esteban.



--
Cloudera, Inc.


On Wed, Apr 8, 2015 at 10:20 AM, <Yu...@dell.com> wrote:

> Hi All,
>
> I'm using an HBase client deployed in OSGI Karaf console and in some
> scenarios, it's causing trouble for me to get connection to HBase server. I
> dug into the root cause and found in some cases, when the
> HConnectionManager tries to get connection by calling HConnectionKey(conf),
> it runs User.getCurrent(), and eventually called
> UserGroupInformation.getCurrentUser(). In the case when IS_HADOOP_SECURE is
> on, it throws exception.
>
> I was wondering if there's any configuration in HBase that we can use to
> turn 'IS_HADOOP_SECURE' to false?
>
> Thanks very much,
> YuLing
>
>

Re: is there any way to configure hbase (0.94.15) so that the flag 'IS_HADOOP_SECURE' becomes false?

Posted by Esteban Gutierrez <es...@cloudera.com>.
bcc: -dev +user@hbase

YuLing,

Are you providing hbase.security.authentication in the configuration? also
can you please let us know what is the exact exception that you getting?

thanks!
esteban.



--
Cloudera, Inc.


On Wed, Apr 8, 2015 at 10:20 AM, <Yu...@dell.com> wrote:

> Hi All,
>
> I'm using an HBase client deployed in OSGI Karaf console and in some
> scenarios, it's causing trouble for me to get connection to HBase server. I
> dug into the root cause and found in some cases, when the
> HConnectionManager tries to get connection by calling HConnectionKey(conf),
> it runs User.getCurrent(), and eventually called
> UserGroupInformation.getCurrentUser(). In the case when IS_HADOOP_SECURE is
> on, it throws exception.
>
> I was wondering if there's any configuration in HBase that we can use to
> turn 'IS_HADOOP_SECURE' to false?
>
> Thanks very much,
> YuLing
>
>