I am running Airflowv1.9 with Celery Executor. I have 5 Airflow workers running in 5 different machines. Airflow scheduler is also running in one of these machines. I have copied the same airflow.cfg file across these 5 machines.
I have daily workflows setup in different queues like DEV, QA etc. (each worker runs with an individual queue name) which are running fine.

While scheduling a DAG in one of the worker (no other DAG have been setup for this worker/machine previously), I am seeing the error in the 1st task and as a result downstream tasks are failing:

```
*** Log file isn't local.
*** Fetching here: http://<worker hostname>:8793/log/PDI_Incr_20190407_v2/checkBCWatermarkDt/2019-04-07T17:00:00/1.log
*** Failed to fetch log file from worker. 404 Client Error: NOT FOUND for url: http://<worker hostname>:8793/log/PDI_Incr_20190407_v2/checkBCWatermarkDt/2019-04-07T17:00:00/1.log

```

I have configured MySQL for storing the DAG metadata. When I checked task\_instance table, I see proper hostnames are populated against the task.

I also checked the log location and found that the log is getting created.

**airflow.cfg snippet:**

```
base_log_folder = /var/log/airflow
base_url = http://<webserver ip>:8082
worker_log_server_port = 8793
api_client = airflow.api.client.local_client
endpoint_url = http://localhost:8080

```

What am I missing here? What configurations do I need to check additionally for resolving this issue?