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Add a multiprocessing lock to index syncing #585

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Add a multiprocessing lock to index syncing #585

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8e0feb4
Add a multiprocessing lock to index syncing
dmaljovec Oct 22, 2020
1ea2321
Remove print statements
dmaljovec Oct 22, 2020
37a537d
lint code
dmaljovec Oct 22, 2020
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11 changes: 8 additions & 3 deletions knowledge_repo/app/index.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@
LOCKED = CHECKED = '1'
UNLOCKED = '0'

sync_lock = multiprocessing.Lock()


def set_up_indexing_timers(app):
if not app.config['INDEXING_ENABLED']:
Expand All @@ -39,9 +41,12 @@ def index_watchdog(app):
def index_sync_loop(app):
current_app.db.engine.dispose()
while True:
with app.app_context():
update_index(check_timeouts=False)
time.sleep(app.config['INDEXING_INTERVAL'])
sync_lock.acquire()
try:
with app.app_context():
update_index(check_timeouts=False)
finally:
sync_lock.release()

app.index_watchdog = multiprocessing.Process(target=index_watchdog, args=(app,))
app.index_watchdog.start()
Expand Down