Using FLR to explore volumes may fail if Elastic Load Balancing (ELB) is in use
When using FLR to explore files you may get one of the following errors when the worker launches.
This could be caused by an ELB (Elastic Load Balancing) in your environment, the timeout may be set to a low number, such as 1 minute.
When an ELB in your environment is causing a timeout, you may see the following in the cpm_server.log file
2020-01-29 22:22:18,242:[YXARihgZcW] ERROR: explore_backup_init(views.py:140) Failed to init explore session
Traceback (most recent call last):
File "./cpmserver/cpm/filemanager/views.py", line 137, in explore_backup_init
File "./cpmserver/cpm/filemanager/mount_volumes.py", line 153, in execute
File "/opt/n2wsoftware/python/lib/python2.7/site-packages/django/db/models/base.py", line 696, in refresh_from_db
db_instance = db_instance_qs.get()
File "/opt/n2wsoftware/python/lib/python2.7/site-packages/django/db/models/query.py", line 380, in get
DoesNotExist: FLRWorker matching query does not exist.