Introduction

This article describes how to install and configure a TRM (Translation Resource Monitor) on an remote computing node, for an existing SES8 installation.

Description

To improve performance sometimes we may consider to add a different computing node and move the Systran Translation Resource Monitor. This procedure explains how to install and configure TRM on another computing node to communicate to TRS Console, RabbitMQ server & SES Console.

Installation

Update firewall rules on SES Frontend (RabbitMQ server host)

CentOS/RedHat 7

firewall-cmd --permanent --zone=public --add-port=5672/tcp
firewall-cmd --permanent --zone=public --add-port=3445/tcp
firewall-cmd --permanent --zone=public --add-port=8889/tcp
firewall-cmd --permanent --zone=public --add-port=8892/tcp
firewall-cmd --reload

CentOS/RedHat 6

Edit /etc/sysconfig/iptables by adding following lines

-A INPUT -m state --state NEW -m tcp -p tcp --dport 5672 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3445 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 8892 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 8889 -j ACCEPT

Open TRM port on new computing node

CentOS/RedHat 7

firewall-cmd --permanent --zone=public --add-port=8888/tcp
firewall-cmd --reload

CentOS/RedHat 6

Edit /etc/sysconfig/iptables by adding following lines

-A INPUT -m state --state NEW -m tcp -p tcp --dport 8888 -j ACCEPT

Create ulimits conf file on new computing node

Create the /etc/security/limits.d/systran_ses_limits.conf file

*              hard    nofile          65536
*              soft    nofile          16384
*              -      nproc          unlimited
root           -      nproc          unlimited
systran        -      nproc          unlimited

Add Systran Repository on new computing node

Create the /etc/yum.repos.d/systranrpm.repo file by adding the following content:

[systran-ses]
name=Systran RPM Repository
baseurl=https://repo.systran.net/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/systran_rpm/ses/8.6/centOS7/$basearch
enabled=1
gpgcheck=1
gpgkey=https://repo.systran.net/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/systran_rpm/GPG-KEY-systranreporpm

Change the xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx string by your TRS key.

Install Systran Translation Resources Monitor

yum install systran-translation-resource-monitor

CentOS/RedHat 7

systemctl enable systran-translation-resource-monitor
systemctl restart systran-translation-resource-monitor

CentOS/RedHat 6

chkconfig systran-translation-resource-monitor on
service systran-translation-resource-monitor restart

Configuration

On computing node, edit the /opt/systran/translation-resource-monitor/etc/trm.cfg file and change the following line:

broker = amqp://systran:SESpassword@localhost:5672

by

broker = amqp://systran:SESpassword@<RabbitMQ_server_host_ip_or_name>:5672

Then edit the /opt/systran/translation-resource-monitor/etc/source.http.cfg file and change the following line:

trsurl=https://localhost:3445

by

trsurl=https://<SES_FrontEnd_host_ip_or_name>:3445

Then restart the Translation Resource Monitor on new computing node

CentOS/RedHat 7

systemctl restart systran-translation-resource-monitor

CentOS/RedHat 6

service systran-translation-resource-monitor restart

Computing node registration

Last step consists of registering this computing node in your Systran Server.

• In the SES console, go to Administration / Environments, then for the targeted environment (e.g : production), click on Computing Nodes, fill the host IP or name field then click on Register:

 

 

After some seconds, the status for this new registered Computing Node should be Running. 

Restart Systran Routing & Dispatcher on Front-End:

CentOS/RedHat 7

systemctl restart systran-routing.service && systemctl restart systran-translation-dispatcher.service

CentOS/RedHat 6

service systran-translation-resource-monitor restart && service systran-translation-dispatcher restart

Check

After registering the new computing node, by clicking on Refresh button, you should see the new computing node listed with status running.

This can be checked too into Administration > Service Monitoring then check the new computing node is listed with green state.

Test

The test consists of import & install a new Translation Resource on this new computing node, instantiate it then check if translation runs fine.