Problem

When task has 300+ files occasionally there are random errors on import or export with Okapi (see related issue)

There seems to be a concurrency issue on Okapi Longhorn side, that causes this problem, when sending different files with the same bconf from different tasks (from the same task we anyway already send only the next file, when the previous returned).

Solution

Decrease the following config values from 3 to 1 as this makes the problem disappear:

runtimeOptions.worker.MittagQI\Translate5\Plugins\Okapi\Worker\OkapiExportWorker.maxParallelWorkers
runtimeOptions.worker.MittagQI\Translate5\Plugins\Okapi\Worker\OkapiImportWorker.maxParallelWorkers

Release this solution asap.