From a60a4babf6e0bfdd2d7e22f69bc118e5f4240428 Mon Sep 17 00:00:00 2001
From: Jonas Winkler <jonas.winkler@jpwinkler.de>
Date: Wed, 25 Nov 2020 19:37:59 +0100
Subject: [PATCH] OMP_THREAD_LIMIT

---
 src/paperless_tesseract/parsers.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/paperless_tesseract/parsers.py b/src/paperless_tesseract/parsers.py
index 7e10de5c5..b181364aa 100644
--- a/src/paperless_tesseract/parsers.py
+++ b/src/paperless_tesseract/parsers.py
@@ -118,6 +118,9 @@ class RasterisedDocumentParser(DocumentParser):
                     f"no DPI information is present in this image and "
                     f"OCR_IMAGE_DPI is not set.")
 
+        # This forces tesseract to use one core per page.
+        os.environ['OMP_THREAD_LIMIT'] = "1"
+
         try:
             ocrmypdf.ocr(**ocr_args)
             # success! announce results