Re: Issue with concurrent ant calls to DITA OT 2.5.4 #DITA-OT

Radu Coravu

Hi Andrés,

A regular DITA OT build process does not modify or delete resources from the DITA OT folder.
Probably your processes also run the DITA OT integrator before the actual build and the DITA OT integrator does delete and refresh the contents of various build files and other resources from the DITA OT folder.
So you need to make sure that the DITA OT integrator is not started by one thread while another thread is running the publishing. You can probably do this by using some semaphores.
Ideally you should avoid calling the DITA OT integrator on every thread.


Radu Coravu
<oXygen/> XML Editor

On 12/5/2019 9:55 PM, wrote:
We have a multi-thread application, and an integration with DITA-OT throught ant which is called from java.
We are started to face an issue with multiple concurrent ant calls to DITA-OT to run transformations, so when two threads or more run the ant call from java to DITA-OT, it randomly starts to generate an error reading the build_preprocess file.
It seems at the same time when one thread is trying to read the build_preprocess, another thread is deleting it; the build_preprocess is generated in the folder DITA-OT\plugins\org.dita.base
Is there a way to fix the issue, o have DITA-OT to support concurrent requests to run transformations?
This is what we get randomly:
plugins\org.dita.base\build_preprocess.xml:79: Failed to read job file: Content is not allowed in trailing section.

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