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Posted to dev@lens.apache.org by Varadaraj Bhat <va...@gmail.com> on 2015/11/12 18:53:11 UTC

Question about Installation

Hello Team,
I am having issues installing the latest version of Apache Lens . Thought I
would reach out since I have spent some time with fixing it ( and still
struggling).
Again, I might be missing something fundamental and I am sorry for a the
longish email.

Main use case - We are trying to evaluate Apache Lens for a customer who is
traditionally has OLAP experience and uses SQL Server Analysis Services
across the enterprise. We wanted to show them something similar in Hadoop
world where we provide an interface to the business users on an existing
Hadoop based data lake with close to around 5 TB of data. We would be using
Apache Lens in conjunction with apache zeppelin.

   1. I have Hortonworks 2.3 in a 10 node cluster ( Evaluation Purpose with
   scaled down data )
   2. CentOS 7.X installation
   3. Downloaded and unzipped the installables
      - wget
      http://www.eu.apache.org/dist//lens/2.3-beta/apache-lens-2.3.0-beta-bin.tar.gz
      - tar zxvf apache-lens-2.3.0-beta-bin.tar.gz
      4. Considering Hadoop and Hive are already installed throught
   Hortonworks, set the variables to
      - export HADOOP_HOME=/usr/hdp/current/hadoop-client;
      - export HIVE_HOME=/usr/hdp/current/hive-client;
   5. Configured lens-env.sh [image: Inline image 1]
   6. Started Lens server [image: Inline image 2]
   7. The log fine shows me the below error.

[image: Inline image 3]

Not sure what is the mistake I am doing.



Regards,
Raj Bhat
Phone : +91-9535577362

Re: Question about Installation

Posted by Yash Sharma <ya...@gmail.com>.

Hi Raj,
You would need to install inmobi's Hive version for installation of Lens.
Could you try the steps mentioned here [1] and check if it works for you.

Let us know if you are still facing the issue.  Also please share images
via public image hosting websites like imgur or send the text error log if
possible.

Best regards,

1. https://lens.apache.org/lenshome/install-and-run.html#

- Thanks, via mobile,  excuse brevity.
On Nov 12, 2015 11:23 PM, "Varadaraj Bhat" <va...@gmail.com> wrote:

> Hello Team,
> I am having issues installing the latest version of Apache Lens . Thought
> I would reach out since I have spent some time with fixing it ( and still
> struggling).
> Again, I might be missing something fundamental and I am sorry for a the
> longish email.
>
> Main use case - We are trying to evaluate Apache Lens for a customer who
> is traditionally has OLAP experience and uses SQL Server Analysis Services
> across the enterprise. We wanted to show them something similar in Hadoop
> world where we provide an interface to the business users on an existing
> Hadoop based data lake with close to around 5 TB of data. We would be using
> Apache Lens in conjunction with apache zeppelin.
>
>    1. I have Hortonworks 2.3 in a 10 node cluster ( Evaluation Purpose
>    with scaled down data )
>    2. CentOS 7.X installation
>    3. Downloaded and unzipped the installables
>       - wget
>       http://www.eu.apache.org/dist//lens/2.3-beta/apache-lens-2.3.0-beta-bin.tar.gz
>       - tar zxvf apache-lens-2.3.0-beta-bin.tar.gz
>       4. Considering Hadoop and Hive are already installed throught
>    Hortonworks, set the variables to
>       - export HADOOP_HOME=/usr/hdp/current/hadoop-client;
>       - export HIVE_HOME=/usr/hdp/current/hive-client;
>    5. Configured lens-env.sh [image: Inline image 1]
>    6. Started Lens server [image: Inline image 2]
>    7. The log fine shows me the below error.
>
> [image: Inline image 3]
>
> Not sure what is the mistake I am doing.
>
>
>
> Regards,
> Raj Bhat
> Phone : +91-9535577362
>
>
>

Re: Question about Installation

Posted by "amareshwarisr ." <am...@gmail.com>.

Raj,

you can look at lensserver.out.* files in log directory for more
information on the error, if you are not finding in .log file.


On Fri, Nov 13, 2015 at 12:11 AM, Rajat Khandelwal <ra...@gmail.com>
wrote:

> Hi Raj
>
> I don't see any issues, but jus to re iterate, here's what I did after
> which I verified the server to be up.
>
>
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin [0]
> $ ls
> LICENSE LICENSE-CDDLv1.1-GPLv2_withCPE LICENSE-GPLv3 README
> LICENSE-CDDL-v1.0 LICENSE-EDL LICENSE-LGPL client
> LICENSE-CDDLv1.0-GPLv2_withCPE LICENSE-EPL NOTICE server
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin [0]
> $ cd server/
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
> $ ls
> bin conf conf-pseudo-distr webapp
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
> $ bin/lens-ctl start
> /Users/rajat.khandelwal/apache-lens-2.3.0-beta-bin/server
> Adding hadoop libs in classpath from /opt/hdp
> HIVE_HOME is set, adding
> /Users/rajat.khandelwal/Git/hive/packaging/target/apache-hive-0.13.4-inm-SNAPSHOT-bin/apache-hive-0.13.4-inm-SNAPSHOT-bin/lib/*
> into lens classpath
> Started lens server!
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
> $
>
>
> Looking at your email, I wonder the error line in lens-config.sh has
> something to do with the problem.
>
> The class file is supposed to be here:
>
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [1]
> $ ls
> webapp/lens-server/WEB-INF/classes/org/apache/lens/server/LensServer.class
> webapp/lens-server/WEB-INF/classes/org/apache/lens/server/LensServer.class
>
> See if it's present.
>
> On extraction of the tar, inside the webapp folder, lens-server.war file
> should be present which should auto-extract and create lens-server folder
> on server start.
>
>

Re: Question about Installation

Posted by "amareshwarisr ." <am...@gmail.com>.

Raj,

you can look at lensserver.out.* files in log directory for more
information on the error, if you are not finding in .log file.


On Fri, Nov 13, 2015 at 12:11 AM, Rajat Khandelwal <ra...@gmail.com>
wrote:

> Hi Raj
>
> I don't see any issues, but jus to re iterate, here's what I did after
> which I verified the server to be up.
>
>
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin [0]
> $ ls
> LICENSE LICENSE-CDDLv1.1-GPLv2_withCPE LICENSE-GPLv3 README
> LICENSE-CDDL-v1.0 LICENSE-EDL LICENSE-LGPL client
> LICENSE-CDDLv1.0-GPLv2_withCPE LICENSE-EPL NOTICE server
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin [0]
> $ cd server/
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
> $ ls
> bin conf conf-pseudo-distr webapp
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
> $ bin/lens-ctl start
> /Users/rajat.khandelwal/apache-lens-2.3.0-beta-bin/server
> Adding hadoop libs in classpath from /opt/hdp
> HIVE_HOME is set, adding
> /Users/rajat.khandelwal/Git/hive/packaging/target/apache-hive-0.13.4-inm-SNAPSHOT-bin/apache-hive-0.13.4-inm-SNAPSHOT-bin/lib/*
> into lens classpath
> Started lens server!
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
> $
>
>
> Looking at your email, I wonder the error line in lens-config.sh has
> something to do with the problem.
>
> The class file is supposed to be here:
>
> rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [1]
> $ ls
> webapp/lens-server/WEB-INF/classes/org/apache/lens/server/LensServer.class
> webapp/lens-server/WEB-INF/classes/org/apache/lens/server/LensServer.class
>
> See if it's present.
>
> On extraction of the tar, inside the webapp folder, lens-server.war file
> should be present which should auto-extract and create lens-server folder
> on server start.
>
>

Re: Question about Installation

Posted by Rajat Khandelwal <ra...@gmail.com>.

Hi Raj

I don't see any issues, but jus to re iterate, here's what I did after
which I verified the server to be up.


rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin [0]
$ ls
LICENSE LICENSE-CDDLv1.1-GPLv2_withCPE LICENSE-GPLv3 README
LICENSE-CDDL-v1.0 LICENSE-EDL LICENSE-LGPL client
LICENSE-CDDLv1.0-GPLv2_withCPE LICENSE-EPL NOTICE server
rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin [0]
$ cd server/
rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
$ ls
bin conf conf-pseudo-distr webapp
rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
$ bin/lens-ctl start
/Users/rajat.khandelwal/apache-lens-2.3.0-beta-bin/server
Adding hadoop libs in classpath from /opt/hdp
HIVE_HOME is set, adding
/Users/rajat.khandelwal/Git/hive/packaging/target/apache-hive-0.13.4-inm-SNAPSHOT-bin/apache-hive-0.13.4-inm-SNAPSHOT-bin/lib/*
into lens classpath
Started lens server!
rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
$


Looking at your email, I wonder the error line in lens-config.sh has
something to do with the problem.

The class file is supposed to be here:

rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [1]
$ ls
webapp/lens-server/WEB-INF/classes/org/apache/lens/server/LensServer.class
webapp/lens-server/WEB-INF/classes/org/apache/lens/server/LensServer.class

See if it's present.

On extraction of the tar, inside the webapp folder, lens-server.war file
should be present which should auto-extract and create lens-server folder
on server start.

Re: Question about Installation

Posted by Yash Sharma <ya...@gmail.com>.

Hi Raj,
You would need to install inmobi's Hive version for installation of Lens.
Could you try the steps mentioned here [1] and check if it works for you.

Let us know if you are still facing the issue.  Also please share images
via public image hosting websites like imgur or send the text error log if
possible.

Best regards,

1. https://lens.apache.org/lenshome/install-and-run.html#

- Thanks, via mobile,  excuse brevity.
On Nov 12, 2015 11:23 PM, "Varadaraj Bhat" <va...@gmail.com> wrote:

> Hello Team,
> I am having issues installing the latest version of Apache Lens . Thought
> I would reach out since I have spent some time with fixing it ( and still
> struggling).
> Again, I might be missing something fundamental and I am sorry for a the
> longish email.
>
> Main use case - We are trying to evaluate Apache Lens for a customer who
> is traditionally has OLAP experience and uses SQL Server Analysis Services
> across the enterprise. We wanted to show them something similar in Hadoop
> world where we provide an interface to the business users on an existing
> Hadoop based data lake with close to around 5 TB of data. We would be using
> Apache Lens in conjunction with apache zeppelin.
>
>    1. I have Hortonworks 2.3 in a 10 node cluster ( Evaluation Purpose
>    with scaled down data )
>    2. CentOS 7.X installation
>    3. Downloaded and unzipped the installables
>       - wget
>       http://www.eu.apache.org/dist//lens/2.3-beta/apache-lens-2.3.0-beta-bin.tar.gz
>       - tar zxvf apache-lens-2.3.0-beta-bin.tar.gz
>       4. Considering Hadoop and Hive are already installed throught
>    Hortonworks, set the variables to
>       - export HADOOP_HOME=/usr/hdp/current/hadoop-client;
>       - export HIVE_HOME=/usr/hdp/current/hive-client;
>    5. Configured lens-env.sh [image: Inline image 1]
>    6. Started Lens server [image: Inline image 2]
>    7. The log fine shows me the below error.
>
> [image: Inline image 3]
>
> Not sure what is the mistake I am doing.
>
>
>
> Regards,
> Raj Bhat
> Phone : +91-9535577362
>
>
>

Re: Question about Installation

Posted by Rajat Khandelwal <ra...@gmail.com>.

Hi Raj

I don't see any issues, but jus to re iterate, here's what I did after
which I verified the server to be up.


rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin [0]
$ ls
LICENSE LICENSE-CDDLv1.1-GPLv2_withCPE LICENSE-GPLv3 README
LICENSE-CDDL-v1.0 LICENSE-EDL LICENSE-LGPL client
LICENSE-CDDLv1.0-GPLv2_withCPE LICENSE-EPL NOTICE server
rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin [0]
$ cd server/
rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
$ ls
bin conf conf-pseudo-distr webapp
rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
$ bin/lens-ctl start
/Users/rajat.khandelwal/apache-lens-2.3.0-beta-bin/server
Adding hadoop libs in classpath from /opt/hdp
HIVE_HOME is set, adding
/Users/rajat.khandelwal/Git/hive/packaging/target/apache-hive-0.13.4-inm-SNAPSHOT-bin/apache-hive-0.13.4-inm-SNAPSHOT-bin/lib/*
into lens classpath
Started lens server!
rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [0]
$


Looking at your email, I wonder the error line in lens-config.sh has
something to do with the problem.

The class file is supposed to be here:

rajat.khandelwal@lappy:~/apache-lens-2.3.0-beta-bin/server [1]
$ ls
webapp/lens-server/WEB-INF/classes/org/apache/lens/server/LensServer.class
webapp/lens-server/WEB-INF/classes/org/apache/lens/server/LensServer.class

See if it's present.

On extraction of the tar, inside the webapp folder, lens-server.war file
should be present which should auto-extract and create lens-server folder
on server start.