On many Concurent Request the TLM Server sometimes crashes

Error Log:

automatic_walk-time_tables-awt-swiss-tml-api-1         | [ERROR] Error in "Index_NearestNeighbors_obj": IllegalStateException: readNode: failed reading the correct node type information
automatic_walk-time_tables-awt-swiss-tml-api-1         | [ERROR] Exception on /swiss_name [GET]
automatic_walk-time_tables-awt-swiss-tml-api-1         | Traceback (most recent call last):
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 2190, in wsgi_app
automatic_walk-time_tables-awt-swiss-tml-api-1         |     response = self.full_dispatch_request()
automatic_walk-time_tables-awt-swiss-tml-api-1         |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 1486, in full_dispatch_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |     rv = self.handle_user_exception(e)
automatic_walk-time_tables-awt-swiss-tml-api-1         |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask_cors/extension.py", line 165, in wrapped_function
automatic_walk-time_tables-awt-swiss-tml-api-1         |     return cors_after_request(app.make_response(f(*args, **kwargs)))
automatic_walk-time_tables-awt-swiss-tml-api-1         |                                                 ^^^^^^^^^^^^^^^^^^
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 1484, in full_dispatch_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |     rv = self.dispatch_request()
automatic_walk-time_tables-awt-swiss-tml-api-1         |          ^^^^^^^^^^^^^^^^^^^^^^^
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 1469, in dispatch_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |     return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
automatic_walk-time_tables-awt-swiss-tml-api-1         |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/app/app.py", line 91, in get_name
automatic_walk-time_tables-awt-swiss-tml-api-1         |     raise e
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/app/app.py", line 62, in get_name
automatic_walk-time_tables-awt-swiss-tml-api-1         |     swiss_names = name_index.get_names(lat, lon, 3)
automatic_walk-time_tables-awt-swiss-tml-api-1         |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/app/swiss_TML_api/name_finding/name_finder.py", line 43, in get_names
automatic_walk-time_tables-awt-swiss-tml-api-1         |     self.index.nearest((lat, lon, lat, lon), num_results=n, objects="raw")
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/rtree/index.py", line 1028, in nearest
automatic_walk-time_tables-awt-swiss-tml-api-1         |     return self._nearest_obj(coordinates, num_results, objects)
automatic_walk-time_tables-awt-swiss-tml-api-1         |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/rtree/index.py", line 956, in _nearest_obj
automatic_walk-time_tables-awt-swiss-tml-api-1         |     core.rt.Index_NearestNeighbors_obj(
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/rtree/core.py", line 13, in check_return
automatic_walk-time_tables-awt-swiss-tml-api-1         |     raise RTreeError(msg)
automatic_walk-time_tables-awt-swiss-tml-api-1         | rtree.exceptions.RTreeError: Error in "Index_NearestNeighbors_obj": IllegalStateException: readNode: failed reading the correct node type information

and sometimes you get:

automatic_walk-time_tables-awt-swiss-tml-api-1         | [2023-11-06 19:51:55 +0000] [7] [WARNING] Worker with pid 355 was terminated due to signal 11

automatic_walk-time_tables-awt-swiss-tml-api-1         | Fatal Python error: Segmentation fault
automatic_walk-time_tables-awt-swiss-tml-api-1         | 
automatic_walk-time_tables-awt-swiss-tml-api-1         | Thread 0x00007fd697fff700 (most recent call first):
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/rtree/index.py", line 956 in _nearest_obj
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/rtree/index.py", line 1028 in nearest
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/app/swiss_TML_api/name_finding/name_finder.py", line 43 in get_names
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/app/app.py", line 65 in get_name
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 1469 in dispatch_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 1484 in full_dispatch_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 2190 in wsgi_app
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 2213 in __call__
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/workers/gthread.py", line 323 in handle_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/workers/gthread.py", line 271 in handle
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/concurrent/futures/thread.py", line 58 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/concurrent/futures/thread.py", line 83 in _worker
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/threading.py", line 975 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/threading.py", line 1038 in _bootstrap_inner
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/threading.py", line 995 in _bootstrap
automatic_walk-time_tables-awt-swiss-tml-api-1         | 
automatic_walk-time_tables-awt-swiss-tml-api-1         | Current thread 0x00007fd69cf20700 (most recent call first):
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/rtree/index.py", line 956 in _nearest_obj
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/rtree/index.py", line 1028 in nearest
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/app/swiss_TML_api/name_finding/name_finder.py", line 43 in get_names
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/app/app.py", line 65 in get_name
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 1469 in dispatch_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 1484 in full_dispatch_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 2190 in wsgi_app
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/flask/app.py", line 2213 in __call__
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/workers/gthread.py", line 323 in handle_request
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/workers/gthread.py", line 271 in handle
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/concurrent/futures/thread.py", line 58 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/concurrent/futures/thread.py", line 83 in _worker
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/threading.py", line 975 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/threading.py", line 1038 in _bootstrap_inner
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/threading.py", line 995 in _bootstrap
automatic_walk-time_tables-awt-swiss-tml-api-1         | 
automatic_walk-time_tables-awt-swiss-tml-api-1         | Thread 0x00007fd69d725700 (most recent call first):
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/reloader.py", line 54 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/threading.py", line 1038 in _bootstrap_inner
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/threading.py", line 995 in _bootstrap
automatic_walk-time_tables-awt-swiss-tml-api-1         | 
automatic_walk-time_tables-awt-swiss-tml-api-1         | Thread 0x00007fd6a2da8740 (most recent call first):
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/selectors.py", line 468 in select
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/workers/gthread.py", line 200 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/workers/base.py", line 142 in init_process
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/workers/gthread.py", line 92 in init_process
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/arbiter.py", line 589 in spawn_worker
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/arbiter.py", line 622 in spawn_workers
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/arbiter.py", line 551 in manage_workers
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/arbiter.py", line 202 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/app/base.py", line 72 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/app/base.py", line 231 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/lib/python3.11/site-packages/gunicorn/app/wsgiapp.py", line 67 in run
automatic_walk-time_tables-awt-swiss-tml-api-1         |   File "/usr/local/bin/gunicorn", line 8 in <module>

cevi / automatic_walk-time_tables

On many Concurent Request the TLM Server sometimes crashes #247