unique log keys(log templates)

[KiteFlyKid]

Nice work!
But I still got some questions

1. As mentioned in the original paper, there are only 40 unique log keys while here are 1143
2. The original paper use "instance_id" to group sessions, but I haven't seen this in your log format

Thanks

[ChangHao120]

I also found these two problems, although I'm not the author, I think that they can be explained.

1. There is no parameter tuning for the log parser, so the result of log parsing is much more than 40 unique log keys.
2. Not all log in openstack logs have intance_id, it may be effective to group by instance_id, but not work for all logs.