flin-aa opened a new issue #8632:
URL: https://github.com/apache/airflow/issues/8632
**Apache Airflow 1.10.10**:
**Linux version 3.10.107-1-(gcc version 4.8.2 20140120 (Red Hat 4.8.2-16)
(GCC) ) **:
**start scheduler a few minutes ,airflow celery do not received task , also
can say scheduler do not send task to broker while scheduler still running in
backend, the scheduler will be turn to red after scheduled task number reach to
the 16.**:

i have three server, a(server) ,b(worker) ,c(worker)
redis server: redis-cli 5.0.8
redis client: redis-cli 3.2.12
mysql Ver 14.14 Distrib 5.6.44, for Linux (x86_64) using EditLine wrapper
Python-3.7.0
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