**Describe the bug**
Very often as I'm browsing stats I see in red a "Configuration Error" warning in the top right of the UI. Clicking it shows a warning dialog that includes "We can't seem to reach your worker".


**To Reproduce**
1. 
2. 
3. 

**Expected behavior**
Not to show an error


**Screenshots**



**Hosted or self hosted?:**
Self hosted, 1.8.0

**Additional context**
I have a feeling it may be due to performance issues? This instance tracks ~745k events daily. Although system load is nowhere to be a concern.
posthog/celery.py
sender.add_periodic_task(10.0, redis_heartbeat.s(), name='10 sec heartbeat')
    sender.add_periodic_task(
        crontab(day_of_week='mon,fri'), 
        update_event_partitions.s(),
    )
    sender.add_periodic_task(15*60, calculate_cohort.s(), name='debug')
@app.task
def redis_heartbeat():
    redis_instance.set("POSTHOG_HEARTBEAT", int(time.time()))
@app.task
def update_event_partitions():
    with connection.cursor() as cursor:
        cursor.execute("DO $$ BEGIN IF (SELECT exists(select * from pg_proc where proname = 'update_partitions')) THEN PERFORM update_partitions(); END IF; END $$")
@app.task
def calculate_cohort():
    from posthog.tasks.calculate_cohort import calculate_cohorts
    calculate_cohorts()
@app.task(bind=True)
def debug_task(self):
    print('Request: {0!r}'.format(self.request))