doc/job_traces.md: the file is job.log

doc/administration/job_traces.md

@@ -12,8 +12,8 @@ In the following table you can see the phases a trace goes through.
 | -----          | -----          | ---------                 | ---------                                       |  ----------- |
 | 1: patching    | Live trace     | When a job is running     | GitLab Runner => Unicorn => file storage        |`#{ROOT_PATH}/builds/#{YYYY_mm}/#{project_id}/#{job_id}.log`|
 | 2: overwriting | Live trace     | When a job is finished    | GitLab Runner => Unicorn => file storage        |`#{ROOT_PATH}/builds/#{YYYY_mm}/#{project_id}/#{job_id}.log`|
-| 3: archiving   | Archived trace | After a job is finished   | Sidekiq moves live trace to artifacts folder    |`#{ROOT_PATH}/shared/artifacts/#{disk_hash}/#{YYYY_mm_dd}/#{job_id}/#{job_artifact_id}/trace.log`|
-| 4: uploading   | Archived trace | After a trace is archived | Sidekiq moves archived trace to [object storage](#uploading-traces-to-object-storage) (if configured)  |`#{bucket_name}/#{disk_hash}/#{YYYY_mm_dd}/#{job_id}/#{job_artifact_id}/trace.log`|
+| 3: archiving   | Archived trace | After a job is finished   | Sidekiq moves live trace to artifacts folder    |`#{ROOT_PATH}/shared/artifacts/#{disk_hash}/#{YYYY_mm_dd}/#{job_id}/#{job_artifact_id}/job.log`|
+| 4: uploading   | Archived trace | After a trace is archived | Sidekiq moves archived trace to [object storage](#uploading-traces-to-object-storage) (if configured)  |`#{bucket_name}/#{disk_hash}/#{YYYY_mm_dd}/#{job_id}/#{job_artifact_id}/job.log`|
 
 The `ROOT_PATH` varies per your environment. For Omnibus GitLab it
 would be `/var/opt/gitlab/gitlab-ci`, whereas for installations from source
@@ -88,6 +88,8 @@ To archive those legacy job traces, please follow the instruction below.
 
 ## How to migrate archived job traces to object storage
 
+> [Introduced][ce-21193] in GitLab 11.3.
+
 If job traces have already been archived into local storage, and you want to migrate those traces to object storage, please follow the instruction below.
 
 1. Ensure [Object storage integration for Job Artifacts](job_artifacts.md#object-storage-settings) is enabled
@@ -201,4 +203,5 @@ indicate that we have trace chunk. `UPDATE`s with 128KB of data is issued once w
 receive multiple chunks.
 
 [ce-18169]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/18169
+[ce-21193]: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/21193
 [ce-46097]: https://gitlab.com/gitlab-org/gitlab-ce/issues/46097