Building the Software

Supported Platforms

• Red Hat or Centos 6.x (6.4 or later) versions are supported as development and production platforms.

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 ant ant-nodeps boost-devel cmake \
         device-mapper-multipath dhcp flex gcc-c++ gd git glibc-devel \
         glibc-devel.i686 graphviz-perl gzip java-1.7.0-openjdk-devel \
         libX11-devel libXau-devel libaio-devel \
         libcurl-devel libibcm.i686 libibumad-devel libibumad-devel.i686 \
         libiodbc libiodbc-devel librdmacm-devel librdmacm-devel.i686 \
         libxml2-devel log4cxx log4cxx-devel lua-devel lzo-minilzo \
         net-snmp-devel net-snmp-perl openldap-clients openldap-devel \
         openldap-devel.i686 openmotif openssl-devel openssl-devel.i686 \
         openssl-static perl-Config-IniFiles perl-Config-Tiny \
         perl-DBD-SQLite perl-Expect perl-IO-Tty perl-Math-Calc-Units \
         perl-Params-Validate perl-Parse-RecDescent perl-TermReadKey \
         perl-Time-HiRes protobuf-compiler protobuf-devel python-qpid \
         python-qpid-qmf qpid-cpp-client \
         qpid-cpp-client-ssl qpid-cpp-server qpid-cpp-server-ssl \
         qpid-qmf qpid-tools readline-devel saslwrapper sqlite-devel \
         unixODBC unixODBC-devel uuid-perl wget xerces-c-devel 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             (blocks, -c) 1000000
data seg size              (kbytes, -d) unlimited
scheduling priority        (-e) 0
file size                  (blocks, -f) unlimited
pending signals            (-i) 515196
max locked memory          (kbytes, -l) 49595556
max memory size            (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                 (kbytes, -s) 10240
cpu time                   (seconds, -t) unlimited
max user processes         (-u) 267263
virtual memory             (kbytes, -v) unlimited
file locks                 (-x) unlimited

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

Run install_local_hadoop

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

install_local_hadoop

install_local_hadoop -p fromDisplay

install_local_hadoop -p rand

install_local_hadoop -p <port >

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.