darwinyip opened a new issue #8638: URL: https://github.com/apache/airflow/issues/8638
**Apache Airflow version**: 1.10.9 **Environment**: - **Cloud provider or hardware configuration**: AWS - **OS** (e.g. from /etc/os-release): python:3.6-slim - **Others**: Running distributed with Celery `apache-airflow[aws,celery,crypto,gcp,mysql,postgres,redis,sentry,slack,ssh]==1.10.9` **What happened**: Seeing occasional scheduler issues after upgrading from 1.10.3 to 1.10.9 ``` The scheduler does not appear to be running. Last heartbeat was received X hour ago. The DAGs list may not update, and new tasks will not be scheduled. ``` **What you expected to happen**: Scheduler keep receiving heartbeats **How to reproduce it**: Unknown **Anything else we need to know**: Happens intermittently. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
