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authorStan Hu <stanhu@gmail.com>2019-02-10 16:43:44 -0800
committerStan Hu <stanhu@gmail.com>2019-02-12 06:58:55 -0800
commit51ca79228bc2d22b12d47ba177610d228793dc94 (patch)
treebe4b156aa088aeb78eca6c198dd78810a1db5fc8 /doc
parentd29e81b2aa7fc26736eb09309bbbf2ab5a5d5050 (diff)
downloadgitlab-ce-51ca79228bc2d22b12d47ba177610d228793dc94.tar.gz
Log queue duration in production_json.log
`queue_duration` is a useful metric that is currently in api_json.log but not in production_json.log. We should add it because it tells us how long the request sat in Workhorse before Unicorn processed it. Having this field enables the support team to better troubleshoot when delays began to happen.
Diffstat (limited to 'doc')
-rw-r--r--doc/administration/logs.md7
1 files changed, 5 insertions, 2 deletions
diff --git a/doc/administration/logs.md b/doc/administration/logs.md
index 698f4caab3a..36dee75bd44 100644
--- a/doc/administration/logs.md
+++ b/doc/administration/logs.md
@@ -23,12 +23,13 @@ requests from the API are logged to a separate file in `api_json.log`.
Each line contains a JSON line that can be ingested by Elasticsearch, Splunk, etc. For example:
```json
-{"method":"GET","path":"/gitlab/gitlab-ce/issues/1234","format":"html","controller":"Projects::IssuesController","action":"show","status":200,"duration":229.03,"view":174.07,"db":13.24,"time":"2017-08-08T20:15:54.821Z","params":[{"key":"param_key","value":"param_value"}],"remote_ip":"18.245.0.1","user_id":1,"username":"admin","gitaly_calls":76}
+{"method":"GET","path":"/gitlab/gitlab-ce/issues/1234","format":"html","controller":"Projects::IssuesController","action":"show","status":200,"duration":229.03,"view":174.07,"db":13.24,"time":"2017-08-08T20:15:54.821Z","params":[{"key":"param_key","value":"param_value"}],"remote_ip":"18.245.0.1","user_id":1,"username":"admin","gitaly_calls":76,"queue_duration": 112.47}
```
In this example, you can see this was a GET request for a specific issue. Notice each line also contains performance data:
-1. `duration`: the total time taken to retrieve the request
+1. `duration`: total time in milliseconds taken to retrieve the request
+1. `queue_duration`: total time in milliseconds that the request was queued inside GitLab Workhorse
1. `view`: total time taken inside the Rails views
1. `db`: total time to retrieve data from the database
1. `gitaly_calls`: total number of calls made to Gitaly
@@ -91,6 +92,8 @@ This entry above shows an access to an internal endpoint to check whether an
associated SSH key can download the project in question via a `git fetch` or
`git clone`. In this example, we see:
+1. `duration`: total time in milliseconds taken to retrieve the request
+1. `queue_duration`: total time in milliseconds that the request was queued inside GitLab Workhorse
1. `method`: The HTTP method used to make the request
1. `path`: The relative path of the query
1. `params`: Key-value pairs passed in a query string or HTTP body. Sensitive parameters (e.g. passwords, tokens, etc.) are filtered out.