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Describes the steps required to build and run Apache Trafodion. |
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Supported Platforms
Red Hat or Centos 6.x (6.4 or later) versions are supported as development and production platforms.
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Build prerequisites
You need to install the following packages before you can install Apache Trafodion.
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$ 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
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that
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the
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Java
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environment
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exists
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and
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points
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to
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your
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JDK
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installation.
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By default Java is located in /usr/lib/java-<version>.
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$ echo $JAVA_HOME $ which java /usr/bin/java $ export JAVA_HOME=/usr/bin $/lib/jvm/java-1.7.0-openjdk.x86_64 |
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You should export JAVA_HOME in your .bashrc or .profile file. |
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If not, please do so now. Refer to
To download from github, refer to Contributor Contributor Workflow - Code/Docs.
Otherwise downloaded and untar the source tar file from Apache Trafodion Incubator release.
Install Required Build Tools
Trafodion requires a set of tools to be installed in order to build. Refer to Required Build Tools for instructions.
Verify Maven Version
The Trafodion build environment requires Maven 3.0.5 or later.
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$ maven --version |
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.
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=$PATH:<tool installation directory>/apache-maven-3.3.3/bin
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You should add Maven to your PATH in your .bashrc or .profile file. |
Build Trafodion
Start a new ssh session. Use the following commands to set up the Trafodion environmental variables.
- <Trafodion source directory> is source tree base for Trafodion.
- <tools installation directory> is where Trafodion required tools are located. The following example assumes that you installed all the required tools in a single location. If you installed or used pre-installed tools in different directories, then you need to export the location of each tool as described Required Build Tools prior to sourcing in env.sh.
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cd <Trafodion source directory>
export TOOLSDIR=<tools installation directory>
source ./env.sh |
Build a debug version of Trafodion using one of the following options:
Command | What It Builds |
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make all | Trafodion, DCS, and REST. |
make package | Trafodion, DCS, REST, and Client Drivers. |
make package-all | Trafodion, DCS, REST, Client Drivers, and tests for all components. |
If the build fails, you might want to rerun the make step. Trafodion downloads many dependencies and sometimes one of the download operations fail. Rerunning the build generally works.
Verify the build:
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$ 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)
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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 export/lib/hbase-trx-cdh5_3-1.3.0.jar (seconds, -t) unlimited max user processesexport/lib/hbase-trx-hbase_98_4-1.3.0.jar (-u) 267263 virtual memoryexport/lib/hbase-trx-hdp2_2-1.3.0.jar export/lib/sqmanvers.jar (kbytes, -v) unlimited file locks export/lib/trafodion-dtm-1.3.0.jar (-x) unlimited |
Please refer to this article for information on how you change system limits.
Build Trafodion
Start a new ssh session. Use the following commands to set up the Trafodion environmental variables.
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.
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cd <download directory>/apache-trafodion-1.3.0-incubating export TOOLSDIR=<tools installation<Trafodion source directory> source ./env.sh |
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if you do not set up TOOLSDIR before sourcing in env.sh, then tools location defaults to /opt/home/tools. You may want to edit your .bashrc or .profile file to always export TOOLSDIR. |
Build using one of the following options:
make all
(Build Trafodion, DCS, REST) OR
make package
(Build Trafodion, DCS, REST, Client drivers) OR
make package-all
(Build Trafodion, DCS, REST, Client drivers and Tests for all components)
Verify build by executing the sqvers request with the -u option. It reports that seven jar files exist.
sqvers -u
Prepare the test environment
It is recommended that you test Trafodion by setting up a local version of Hadoop and installing Trafodion on top. This is enabled by running the 'install_local_hadoop' script.
Run install_local_hadoop
This section describes the steps to use the Trafodion installation script called 'install_local_hadoop' that downloads compatible versions of Hadoop, HBase, Hive, and MySql and starts Trafodion.
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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.
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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:
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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:
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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.
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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
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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.
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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 |
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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 <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
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# Ensure that the Trafodion environmental variables have been loaded.
cd <Trafodion source directory>
source ./env.sh |
Install the Hadoop software.
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cd $MY_SQROOT/sql/scripts
install_local_hadoop
./install_traf_components |
Verify installation.
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$ swstatus
6 java servers and 2 mysqld processes are running
713 NameNode
19513 HMaster
1003 SecondaryNameNode
838 DataNode
1173 ResourceManager
1298 NodeManager
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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.
Command | Usage |
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swstartall | Start the complete Hadoop environment. |
swstopall | Stops the complete Hadoop environment. |
swstatus | Checks the status of the Hadoop environment. |
swuninstall_local_hadoop | Removes the Hadoop installation. |
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.
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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.
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cd $MY_SQROOT/sql/scripts
sqstart
sqcheck |
Management Scripts
Component | Start | Stop | Status |
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All of Trafodion | sqstart | sqstop | sqcheck |
DCS (Database Connectivity Services) | dcstart | dcsstop | dcscheck |
REST Server | reststart | reststop | |
LOB Server | lobstart | lobstop | |
RMS Server | rmsstart | rmsstop | rmscheck |
Create Trafodion Metadata
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# Ensure that the Trafodion environmental variables have been loaded.
cd <Trafodion source directory>
source ./env.sh |
Assumption: Trafodion is up and running.
Use sqlci to create the Trafodion metadata.
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$ sqlci
>> initialize trafodion;
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.
.
>> exit;
$ |
Validate Your Installation
You can use sqlci or trafci (connects via DCS) to validate your installation.
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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:
- sqstop to shut down Traodion. If some Trafodion processes do not terminate cleanly, then run ckillall.
- swstopall to shut down the Hadoop ecosystem.
- swstartall to restart the Hadoop ecosystem.
- 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.
Make sure you have set up password less authentication. You should be able to "ssh localhost" without having to enter a password. To setup passwordless authentication:
ssh-keygen -t rsa -N "" -f $HOME/.ssh/id_rsa
cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys
Install hadoop
cd $MY_SQROOT/sql/scripts
install_local_hadoop
./install_traf_components
Verify that the install completed by running the following command - should report: 6 java servers and 2 mysqld processes are running
swstatus
Note:
The 'install_local_hadoop' script 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.
The following options are available with 'install_local_hadoop'. Use the -p option if the default Hadoop ports are already in use on your machine:
‘install_local_hadoop' — will use default port numbers for all services OR
'install_local_hadoop -p fromDisplay' - will start Hadoop with a port number range determined from the DISPLAY environment variable OR
‘install_local_hadoop -p rand' — will start with any random port number range between 9000 and 49000 OR
‘install_local_hadoop -p < specify a port # >' — will start with port number specified
If you don't specify the -p option, the following default ports are used:
MY_DCS_MASTER_PORT=23400
MY_DCS_MASTER_INFO_PORT=24400
MY_REST_SERVER_PORT=4200
MY_REST_SERVER_SECURE_PORT=4201
When this script completes, Hadoop, HBase, Hive, and MySql (used as Hive's metadata repository) have been installed and are started.
To start/stop/check Hadoop environment using Trafodion supplied scripts, you can execute ‘swstartall’ , ‘swstopall’ and ‘swstatus’, and if you need to remove the installation, execute the 'swuninstall_local_hadoop'.
Use pre-installed Hadoop
If you want to use an already installed version of Hadoop, you should build binary tar files and then install Trafodion following instructions described in Installation .
To build binary files
cd <download directory>/apache-trafodion-1.3.0-incubating
make package
Your binary tar files will be created in <download directory>/apache-trafodion-1.3.0-incubating/distribution directory.
Run Trafodion
This section describes how to start Trafodion and run operations.
Setup required each time source is downloaded
Start a new ssh session and set up environment:
cd <download directory>/apache-trafodion-1.3.0-incubating
source ./env.sh
cd $MY_SQROOT/etc
# delete ms.env, if it exists
rm ms.env
cd $MY_SQROOT/sql/scripts
sqgen
Start up Trafodion
cd $MY_SQROOT/sql/scripts
sqstart
sqcheck
Note: In case of any issues and if there is a need to stop and restart a specific Trafodion component, you can use the component based start/stop scripts.
Component | Start script | Stop script |
For all of Trafodion | sqstart | sqstop |
For DCS (Database Connectivity Service) | dcsstart | dcsstop |
For REST server | reststart | reststop |
For LOB server | lobstart | lobstop |
For RMS server | rmsstart | rmsstop |
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Checking the status of Trafodion and its components
There are several health check scripts that are available which will provide the status of Trafodion. They are :
sqcheck
(For all of Trafodion)dcscheck
(For Database Connectivity Service)rmscheck
(For RMS Server)
Create Trafodion metadata
If you started a new ssh session, be sure to
cd <download directory>/apache-trafodion-1.3.0-incubating
source ./env.sh
Trafodion is up and running, you can now start up a SQL command line interface and initialize Trafodion
sqlci
Perform the following statements:
initialize trafodion;
exit
Validate
Test your setup by using "sqlci" or "trafci" (uses DCS to connect to the SQL engine):
get schemas;
create table table1 (a int);
invoke table1;
insert into table1 values (1), (2), (3), (4);
select * from table1;
exit;
You are done and ready to go!