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Supported Platforms

• Red Hat or Centos 6.4 or Centos x (6.4 or later) versions are supported as development and production platforms.

Required Software

1. Install Cloudera or Horton works Hadoop distribution. In situations where you do not have the hadoop distributions already available you can use the optional sandbox install steps described below in section "Sandbox Hadoop Install"
2. Java 1.7.x or greater must be installed. Ensure JAVA_HOME environment variable is set and points to your JDK installation.
3. Download, build and install additional development tools via  Additional Build Tools
4. Install the following packages  via yum install <package>

Build prerequisites

You need to install the following packages before you can install Apache Trafodion.

sudo yum install epel-release

sudo yum install alsa-lib-devel

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 ant

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 ant-nodeps

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 boost-devel

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 cmake \
         device-mapper-multipath

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 dhcp

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 flex gcc-c++

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gd

 gd git glibc-devel \
         glibc-devel.i686

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 graphviz-perl

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 gzip

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 java-1.7.0-openjdk-devel

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java-1.6.0-openjdk-devel

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libaio-devel

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libibcm.i686

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libibumad-devel

 \
         libX11-devel libXau-devel libaio-devel \
         libcurl-devel libibcm.i686 libibumad-devel libibumad-devel.i686

...

 \
         libiodbc libiodbc-devel

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 librdmacm-devel

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 librdmacm-devel.i686

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 \
         libxml2-devel log4cxx log4cxx-devel

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 lua-devel

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 lzo-minilzo

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 \
         net-snmp-devel

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 net-snmp-perl

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 openldap-clients

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 openldap-devel \
         openldap-devel.i686

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openmotif

 openmotif openssl-devel openssl-devel.i686

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 \
         openssl-static

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 perl-Config-IniFiles

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 perl-

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perl-Config-Tiny

Config-Tiny \
         perl-DBD-SQLite perl-Expect

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 perl-IO-Tty

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 perl-Math-Calc-Units

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 \
         perl-Params-Validate

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 perl-Parse-RecDescent

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 perl-TermReadKey

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 \
         perl-Time-HiRes

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 protobuf-compiler

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 protobuf-devel

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 python-qpid

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 \
         python-qpid-qmf

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 qpid-cpp-client

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 \
         qpid-cpp-client-

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qpid-cpp-client-ssl

ssl qpid-cpp-server

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 qpid-cpp-server-ssl

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 \
         qpid-qmf

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 qpid-tools

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 readline-devel

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 saslwrapper

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 sqlite-devel

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 \
         unixODBC unixODBC-devel

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 uuid-perl

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 wget xerces-c-devel

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Note :

1.  The qpid-cpp-client-devel package is not in the latest CentOS distribution, you may need to enable an earlier repo using the following command

                    yum --enablerepo=C6.3-updates install qpid-cpp-client-devel

     2.    Not all packages come standard with RHEL/CentOS, the EPEL repo will need to be downloaded and installed using wget command

                     wget http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

                     sudo rpm -Uvh epelrelease-6-8.noarch.rpm

Compiling and Configuring Trafodion

To build and compile Trafodion

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 xinetd 

Once installed, check the following.

Java Version

The Java version must be 1.7.x. Check as following:

$ java -version
java version "1.7.0_85"
OpenJDK Runtime Environment (rhel-2.6.1.3.el6_6-x86_64 u85-b01)
OpenJDK 64-Bit Server VM (build 24.85-b03, mixed mode)

Ensure that the Java environment exists and points to your JDK installation. By default Java is located in /usr/lib/java-<version>.

$ echo $JAVA_HOME
$ export JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk.x86_64

You should export JAVA_HOME in your .bashrc or .profile file.

Verify Trafodion Download

Verify that the Trafodion source has been either:

• Downloaded and unpackaged.
• Cloned from github.

If not, please do so now.

To download from github, refer to Contributor Workflow - Code/Docs.
Otherwise downloaded and untar the source tar file from Apache Trafodion Incubator release.

Install Required Build Tools

Trafodion requires a set of tools to be installed in order to build. Refer to  Required Build Tools for instructions. One of the tools that is built if it does not already exist is Maven.  At this time, you should verify that Maven is part of your path. To verify that Maven is available do:  

   mvn --version.

If not found, then added it to your path:

  PATH=$PATH:<tool installation directory>/apache-maven-3.3.3/bin

You should add Maven to your PATH in your .bashrc or .profile file.

Build Trafodion

Start a new ssh session. Use the following commands to set up the Trafodion environmental variables.

• <Trafodion source directory> is source tree base for Trafodion.
• <tools installation directory> is where Trafodion required tools are located.   The following example assumes that you installed all the required tools in a single location.  If you installed or used pre-installed tools in different directories, then you need to export the location of each tool as described Required Build Tools prior to sourcing in env.sh.

cd <Trafodion source directory>
export TOOLSDIR=<tools installation directory>
source ./env.sh

Build a debug version of Trafodion using one of the following options:

make all

make package

make package-all

If the build fails, you might want to rerun the make step.  Trafodion downloads many dependencies and sometimes one of the download operations fail.  Rerunning the build generally works.

Verify the build:

$ sqvers -u
MY_SQROOT=/home/centos/apache-trafodion-1.3.0-incubating/core/sqf
who@host=centos@mysystem
JAVA_HOME=/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91.x86_64
SQ_MBTYPE=64d (64-debug)
linux=2.6.32-504.1.3.el6.x86_64
redhat=6.7
NO patches
Most common Apache_Trafodion Release 1.3.0 (Build debug [centos], branch -, date 06Nov15)
UTT count is 1
[6]     Release 1.3.0 (Build debug [centos], branch -, date 06Nov15)
          export/lib/hbase-trx-cdh5_3-1.3.0.jar
          export/lib/hbase-trx-hbase_98_4-1.3.0.jar
          export/lib/hbase-trx-hdp2_2-1.3.0.jar
          export/lib/sqmanvers.jar
          export/lib/trafodion-dtm-1.3.0.jar
          export/lib/trafodion-sql-1.3.0.jar

The output show several jar files.  The number of files differs based on the version of Trafodion you downloaded.

Setup Test Environment

You should test your installation using:

• Trafodion installation on a system that already has a compatible version of Hadoop installed
• A local Hadoop environment created by the install_local_hadoop script

Your installation approach depends on whether you already have installed Hadoop.

Hadoop is Already Installed

Build binary tar files and then install Trafodion following instructions described in Installation.

cd <Trafodion source directory>
make package

The binary tar files will be created in <Trafodion source directory>/distribution directory. 

Install a Local Hadoop Environment

Local Hadoop prerequisites

Setup Passwordless SSH 

Check to see if you have passwordless SSH setup.

ssh localhost
Last login: Fri Nov  6 22:44:00 2015 from 192.168.1.9

If passwordless SSH is not setup, please do so now.  The following is an example of setting up passwordless SSH using id_rsa keys.  You can choose the method that best represents your environment.

If you already have an existing set of ssh keys. Simply copy both the id_rsa.pub and id_rsa to your ~/.ssh directory.

Then, do the following:

cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
chmod 600 ~/.ssh/id_rsa
echo "NoHostAuthenticationForLocalhost=yes" >>~/.ssh/config
chmod go-w ~/.ssh/config
chmod 755 ~/.ssh; chmod 640 ~/.ssh/authorized_keys; cd ~/.ssh; chmod 700 ..

If you need to create your keys first, then do the following:

ssh-keygen -t rsa -N "" -f ~/.ssh/id_rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
chmod 600 ~/.ssh/id_rsa.pub
echo "NoHostAuthenticationForLocalhost=yes" >>~/.ssh/config
chmod go-w ~/.ssh/config
chmod 755 ~/.ssh; chmod 640 ~/.ssh/authorized_keys; cd ~/.ssh; chmod 700 ..

Verify System Limits

Please check that the system limits in your environment are appropriate for Apache Trafodion. If they are not, then you will need to increase the limits or Trafodion cannot start.

ulimit –a
core file size

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Configuring DCS and starting Trafodion

1. Open a new terminal via ssh
2. cd <apache-incubator-dir>/core/sqf
3. . ./sqenv.sh
4. cd $MY_SQROOT/sql/scripts
5. sqgen
6. sqstart (Wait till all process is up and running)
7. sqcheck

8. sqlci > initialize trafodion;

9. Perform a quick sanity test of the install, by creating a sample table and querying it

   1. sqlci
      >set schema trafodion.sch;
      >create table t (a int not null, primary key(a));
      >insert into t values (1), (3);
      >select * from t;
      >exit;

10. Edit $DCS_INSTALL_DIR/conf/dcs-site.xml and 

Sandbox Hadoop install (Optional)

The instructions below describe steps to install and start sand boxed version of Hadoop using non-default ports

1. Create a sand-boxed installation of Hadoop, HBase, Hive, MySQL to be used for building and testing. You can install them locally to your workspace.

           install_local_hadoop -p <port>

   Note: This script will download Hadoop and HBase jar files from the internet. To avoid this overhead for future executions of the script, you can save the downloaded files into a separate directory and set the environment variable MY_LOCAL_SW_DIST to point to that directory. 
   The files to save are: $MY_SQROOT/sql/local_hadoop/*.tar.gz $MY_SQROOT/sql/local_hadoop/tpcds/tpcds_kit.zip.
2. Make sure you have set up password less authentication. Basically you should be able to "ssh localhost" without having to enter a password
3. Bring up your Hadoop/HBase instance by using the custom script

          swstartall

Hadoop Components (needs more work here...)

• Install Hadoop, HBase and Hive to a your local workspace. Dependencies for release 0.9.x

1. 1. Download the files to $HOME/tools folder. If 'tools' folder does not exist please create before issuing a wget command

      wget http://archive-primary.cloudera.com/cdh5/cdh/5/hbase-0.98.1-cdh5.1.0.tar.gz

      wget http://archive.apache.org/dist/hive/hive-0.13.1/apache-hive-0.13.1-bin.tar.gz  

      wget http://archive.apache.org/dist/hadoop/common/hadoop-2.4.0/hadoop-2.4.0-src.tar.gz

       

   2. Untar the files in $HOME/tools folder

      tar xzf apache-hive-0.13.1-bin.tar.gz $HOME/tools/apache-hive-0.13.1-bin

          tar xzf hbase-0.98.1-cdh5.1.0.tar.gz $HOME/tools/hbase-0.98.1-cdh5.1.0

                   tar xzf $HOME/tools/hadoop-2.4.0-src.tar.gz 

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   (blocks, -c) 1000000
data seg size          

...

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   (kbytes, -d) unlimited
scheduling priority     

...

...

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 (-e) 0
file size          

...

...

...

...

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 (blocks, -f) unlimited
pending signals            (-i) 515196
max locked memory    

...

...

...

...

...

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 (kbytes, -

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l) 

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49595556
max memory size            

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                c. For Pre-installed Hadoop/HBase version, Update the HBase configuration and restart HBase.

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(kbytes, -m) unlimited
open files                 (-n) 32000
pipe size                  (512 bytes, -p) 8
POSIX message queues       (bytes, -q) 819200
real-time priority         (-r) 0
stack size                 

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(kbytes, -s) 10240
cpu time          

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         (seconds, -t) unlimited
max user processes         

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(-u) 267263
virtual memory     

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        (kbytes, -v) unlimited
file locks       

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...

...

...

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(-x) unlimited

Please refer to this article for information on how you change system limits.

Run

Before building trafodion, be sure to export the TOOLSDIR environment variable set to the directory location of these components and the additional build tools from the section above.

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install_local_hadoop

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 NOTE: The hadoop release contains 32-bit libraries. You must build hadoop from source for 64-bit architecture, and not just download the release tar file.                                                            See: http://wiki.apache.org/hadoop/HowToContribute  

Notes

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The install_local_hadoop script downloads compatible versions of Hadoop, HBase, Hive, and MySQL. Then, it starts Trafodion.

Tip
title Time Saver
install_local_hadoop downloads Hadoop, HBase, Hive, and MySql jar files from the internet. To avoid this overhead, you can download the required files into a separate directory and set the environment variable MY_LOCAL_SW_DIST to point to this directory.

Command	What It Does
install_local_hadoop	Uses default ports for all services.
install_local_hadoop -p fromDisplay	Start Hadoop with a port number range determined from the DISPLAY environment variable.
install_local_hadoop -p rand	Start with any random port number range between 9000 and 49000.
install_local_hadoop -p

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<port >

Start with the specified port number.

For a list of ports that get configured and their default values, see Configure Ports for a Firewall.

Sample Procedure

# Ensure that the Trafodion environmental variables have been loaded.
cd <Trafodion source directory>
source ./env.sh

Install the Hadoop software.

cd $MY_SQROOT/sql/scripts
install_local_hadoop
./install_traf_components

Verify installation.

$ swstatus
6 java servers and 2 mysqld processes are running
713   NameNode
19513 HMaster
1003  SecondaryNameNode
838   DataNode
1173  ResourceManager
1298  NodeManager

Six java servers as shown above and two mysqld processes should be running.

Manage Hadoop Environment 

Use the following commands to manage the Hadoop environment.

swstartall

swstopall

swstatus

swuninstall_local_hadoop

Run Trafodion

This section describes how to start Trafodion and run operations. 

Each Time New Source is Downloaded

You need to do the following each time you download new source code.

cd <Trafodion source directory>
source ./env.sh
cd $MY_SQROOT/etc
# delete ms.env, if it exists
rm ms.env
cd $MY_SQROOT/sql/scripts
sqgen 

Start Trafodion

Do the following to start the Trafodion environment.

cd $MY_SQROOT/sql/scripts
sqstart
sqcheck 

Management Scripts

sqstart

sqstop

sqcheck

dcstart

dcsstop

dcscheck

reststart

reststop

lobstart

lobstop

rmsstart

rmsstop

rmscheck

Create Trafodion Metadata

# Ensure that the Trafodion environmental variables have been loaded.
cd <Trafodion source directory>
source ./env.sh

Assumption: Trafodion is up and running.

Use sqlci to create the Trafodion metadata.

$ sqlci
>> initialize trafodion;
.
.
.
>> exit;
$

Validate Your Installation

You can use sqlci or trafci (connects via DCS) to validate your installation.

get schemas;
create table table1 (a int);
invoke table1;
insert into table1 values (1), (2), (3), (4);
select * from table1;
exit;

Assuming no errors, your installation has been successful. You can start working on your modifications.

Troubleshooting Notes

If you are not able to start up the environment or if there are problems running sqlci or trafci, then verify that the all the processes are up and running.

• swstatus should show at 6 java servers and 2 mysql processes. 
• sqcheck should indicate all processes are running. 

If processes are not running as expected, then:

1. sqstop to shut down Traodion. If some Trafodion processes do not terminate cleanly, then run ckillall.
2. swstopall to shut down the Hadoop ecosystem.
3. swstartall to restart the Hadoop ecosystem.
4. sqstart to restart Trafodion.

If problems persist please review logs:

• $MY_SQROOT/sql/local_hadoop/*/log: Hadoop, HBase, and Hive logs.
• $MY_SQROOT/logs Trafodion logs.

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 sqstop
 # edit source files
 cd $MY_SQROOT/..
 make all
 sqstart

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 sqstop
 swstopall

To start it up later, use the following commands:

 swstartall
 sqstart

To check on the status, use these commands:

 sqcheck
 swstatus

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