Document classification: public

Introduction

By default, STS10 and SPN9 have timeout preventing large files (taking more than 1 hour) to be translated.

This article describes the timeouts to adjust to be able to translate larger files.

Adjustments

1) Dispatcher

Edit /opt/systran/translation-dispatcher/etc/std.cfg and update the following timeouts (in ms)

default-time-to-live = 3600000 # queued jobs expire after 1h
default-timeout = 3600000 # job timout: 1h

Restart Dispatcher

systemctl restart systran-translation-dispatcher

2) RabbitMQ queues

Adjust the Queue expiration setting:

Restart ses-console and ses-file-translation-consumer services

systemctl restart systran-ses-console
systemctl restart systran-ses-file-translation-consumer

3) Queue max size adjustment

RabbitMQ queues have a default size limit that is ~128MB (134217728 bytes). A payload larger than that will be refused. In that case dispatcher will raise such error:

SystranTranslationDispatcher[1641068]: 2024-May-15 10:43:05.292807 UTC [Channel error] ERROR 406 PRECONDITION_FAILED - message size 202860999 is larger than configured max size 134217728 - The client requested a method that was not allowed because some precondition failed.

To avoid this, best is to increase max size to the max value 512MB (https://www.rabbitmq.com/docs/configure) by editing /etc/rabbitmq/rabbitmq.config

[
 {kernel, [
 ]},
 {rabbit, [
  {max_message_size, 536870912},
  {tcp_listen_options, [binary, {packet,raw},
   {reuseaddr,true},
   {backlog,128},
   {nodelay,true},
   {exit_on_close,false},
   {keepalive,false}]},
  {default_user, <<"guest">>},
  {default_pass, <<"guest">>}
 ]},
 {rabbitmq_management_agent, [
   {force_fine_statistics, false}
 ]}
].

Note size of the RabbitMQ payload is the size of the translated file in its XLIFF pivot format, not the size of the source file (or the translated file).

systemctl restart rabbitmq-server