SERVER-72866 resmoke symbolizer service raises Python error when stacktrace file isn't found

2 files changed, 13 insertions, 1 deletions

diff --git a/buildscripts/resmokelib/testing/symbolizer_service.py b/buildscripts/resmokelib/testing/symbolizer_service.py
index 866a4209239..767e8cb5092 100644
--- a/buildscripts/resmokelib/testing/symbolizer_service.py
+++ b/buildscripts/resmokelib/testing/symbolizer_service.py
@@ -271,7 +271,14 @@ class FileService:
         :param files: list of paths
         :return: Non-empty files
         """
-        return [f for f in files if not os.stat(f).st_size == 0]
+        filtered_files = []
+        for file in files:
+            try:
+                if not os.stat(file).st_size == 0:
+                    filtered_files.append(file)
+            except FileNotFoundError:
+                pass
+        return filtered_files
 
     @staticmethod
     def check_path_exists(path: str) -> bool:
diff --git a/buildscripts/tests/resmokelib/testing/test_symbolizer_service.py b/buildscripts/tests/resmokelib/testing/test_symbolizer_service.py
index 06b0cc9991e..f230f29d6af 100644
--- a/buildscripts/tests/resmokelib/testing/test_symbolizer_service.py
+++ b/buildscripts/tests/resmokelib/testing/test_symbolizer_service.py
@@ -196,6 +196,11 @@ class TestFileService(unittest.TestCase):
             self.assertEqual(
                 set(self.file_service.filter_out_empty_files(abs_file_paths)), set(abs_file_paths))
 
+    def test_do_not_panic_when_file_does_not(self):
+        non_existing_files = ["this-does-not-exist.file", "my.cat"]
+        # non-existing files should be filtered out, instead of causing errors
+        self.assertListEqual(self.file_service.filter_out_empty_files(non_existing_files), [])
+
     def test_filter_out_empty_files_if_partly_empty(self):
         with TemporaryDirectory() as tmpdir:
             abs_dir_paths = [os.path.join(tmpdir, d) for d in self.relative_dir_paths]