Job status not expiring from cache

[tjwp]

We are using Rails 6.1 and ActiveSupport::Cache::RedisStore as the store and recently found that status keys are not expiring.

The expires_in value is only specified when a job is enqueued, not for the other statuses: https://github.com/cdale77/active_job_status/blob/master/lib/active_job_status/job_tracker.rb#L11-L31

It appears that when the status is updated, the expiration on the key is cleared. This may be behavior that has changed at some point.

It would be better to specify an expires_in value for all status updates to ensure that keys are cleaned up.

We worked around this issue by configuring a default expires_in value for the store:

ActiveJobStatus.store = ActiveSupport::Cache::RedisStore.new(expires_in: 3.days)

Reproduction of the issuing using a console:

Running via Spring preloader in process 77990
Loading development environment (Rails 6.1.3.2)
[1] pry(main)> job_id = SecureRandom.uuid
=> "ca1222e4-5bb3-4b02-978d-dfec4f03f108"
[2] pry(main)> ActiveJobStatus.store.write(job_id, "queued", expires_in: 3.days)
=> "OK"
[3] pry(main)> ActiveJobStatus.store.send(:read_entry, job_id)
=> #<ActiveSupport::Cache::Entry:0x00007fadd78f5818 @created_at=1621937433.6319191, @expires_in=259200.0, @value="queued", @version=nil>
[4] pry(main)> ActiveJobStatus.store.redis.ttl(job_id)
=> 259170
[5] pry(main)> ActiveJobStatus.store.write(job_id, "working") # update without expires_in
=> "OK"
[6] pry(main)> ActiveJobStatus.store.send(:read_entry, job_id)
=> #<ActiveSupport::Cache::Entry:0x00007fadd63b18f8 @created_at=1621937483.174815, @expires_in=nil, @value="working", @version=nil> # expires_in value cleared from entry
[7] pry(main)> ActiveJobStatus.store.redis.ttl(job_id)
=> -1 # querying the key directly shows no TTL in redis
[8] pry(main)> ActiveJobStatus.store.class
=> ActiveSupport::Cache::RedisCacheStore