Exception in thread Thread-2: Traceback (most recent call last): File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner self.run() File "/usr/local/lib/python3.5/dist-packages/whoosh/writing.py", line 1010, in run writer = self.index.writer(**self.writerargs) File "/usr/local/lib/python3.5/dist-packages/whoosh/index.py", line 464, in writer return SegmentWriter(self, **kwargs) File "/usr/local/lib/python3.5/dist-packages/whoosh/writing.py", line 514, in __init__ delay=delay): File "/usr/local/lib/python3.5/dist-packages/whoosh/util/filelock.py", line 54, in try_for v = fn() File "/usr/local/lib/python3.5/dist-packages/whoosh/util/filelock.py", line 98, in acquire self.fd = os.open(self.filename, flags) FileNotFoundError: [Errno 2] No such file or directory: '/srv/mailman/var/fulltext_index/MAIN_WRITELOCK' Exception in thread Thread-3: Traceback (most recent call last): File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner self.run() File "/usr/local/lib/python3.5/dist-packages/whoosh/writing.py", line 1010, in run writer = self.index.writer(**self.writerargs) File "/usr/local/lib/python3.5/dist-packages/whoosh/index.py", line 464, in writer return SegmentWriter(self, **kwargs) File "/usr/local/lib/python3.5/dist-packages/whoosh/writing.py", line 514, in __init__ delay=delay): File "/usr/local/lib/python3.5/dist-packages/whoosh/util/filelock.py", line 54, in try_for v = fn() File "/usr/local/lib/python3.5/dist-packages/whoosh/util/filelock.py", line 98, in acquire self.fd = os.open(self.filename, flags) FileNotFoundError: [Errno 2] No such file or directory: '/srv/mailman/var/fulltext_index/MAIN_WRITELOCK' Exception in thread Thread-1: Traceback (most recent call last): File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner self.run() File "/usr/local/lib/python3.5/dist-packages/whoosh/writing.py", line 1010, in run writer = self.index.writer(**self.writerargs) File "/usr/local/lib/python3.5/dist-packages/whoosh/index.py", line 464, in writer return SegmentWriter(self, **kwargs) File "/usr/local/lib/python3.5/dist-packages/whoosh/writing.py", line 514, in __init__ delay=delay): File "/usr/local/lib/python3.5/dist-packages/whoosh/util/filelock.py", line 54, in try_for v = fn() File "/usr/local/lib/python3.5/dist-packages/whoosh/util/filelock.py", line 98, in acquire self.fd = os.open(self.filename, flags) FileNotFoundError: [Errno 2] No such file or directory: '/srv/mailman/var/fulltext_index/MAIN_WRITELOCK' Exception in thread Thread-4: Traceback (most recent call last): File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner self.run() File "/usr/local/lib/python3.5/dist-packages/whoosh/writing.py", line 1010, in run writer = self.index.writer(**self.writerargs) File "/usr/local/lib/python3.5/dist-packages/whoosh/index.py", line 464, in writer return SegmentWriter(self, **kwargs) File "/usr/local/lib/python3.5/dist-packages/whoosh/writing.py", line 514, in __init__ delay=delay): File "/usr/local/lib/python3.5/dist-packages/whoosh/util/filelock.py", line 54, in try_for v = fn() File "/usr/local/lib/python3.5/dist-packages/whoosh/util/filelock.py", line 98, in acquire self.fd = os.open(self.filename, flags) FileNotFoundError: [Errno 2] No such file or directory: '/srv/mailman/var/fulltext_index/MAIN_WRITELOCK'