diff options
| author | Bob Van Landuyt <bob@vanlanduyt.co> | 2017-11-13 18:52:07 +0300 |
|---|---|---|
| committer | Bob Van Landuyt <bob@vanlanduyt.co> | 2017-12-08 11:11:39 +0300 |
| commit | f1ae1e39ce6b7578c5697c977bc3b52b119301ab (patch) | |
| tree | 1d01033287e4e15e505c7b8b3f69ced4e6cf21c8 /doc/api | |
| parent | 12d33b883adda7093f0f4b838532871036af3925 (diff) | |
Move the circuitbreaker check out in a separate process
Moving the check out of the general requests, makes sure we don't have
any slowdown in the regular requests.
To keep the process performing this checks small, the check is still
performed inside a unicorn. But that is called from a process running
on the same server.
Because the checks are now done outside normal request, we can have a
simpler failure strategy:
The check is now performed in the background every
`circuitbreaker_check_interval`. Failures are logged in redis. The
failures are reset when the check succeeds. Per check we will try
`circuitbreaker_access_retries` times within
`circuitbreaker_storage_timeout` seconds.
When the number of failures exceeds
`circuitbreaker_failure_count_threshold`, we will block access to the
storage.
After `failure_reset_time` of no checks, we will clear the stored
failures. This could happen when the process that performs the checks
is not running.
Diffstat (limited to 'doc/api')
| -rw-r--r-- | doc/api/settings.md | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/doc/api/settings.md b/doc/api/settings.md index 22fb2baa8ec..0e4758cda2d 100644 --- a/doc/api/settings.md +++ b/doc/api/settings.md @@ -70,10 +70,9 @@ PUT /application/settings | `akismet_api_key` | string | no | API key for akismet spam protection | | `akismet_enabled` | boolean | no | Enable or disable akismet spam protection | | `circuitbreaker_access_retries | integer | no | The number of attempts GitLab will make to access a storage. | -| `circuitbreaker_backoff_threshold | integer | no | The number of failures after which GitLab will start temporarily disabling access to a storage shard on a host. | +| `circuitbreaker_check_interval` | integer | no | Number of seconds in between storage checks. | | `circuitbreaker_failure_count_threshold` | integer | no | The number of failures of after which GitLab will completely prevent access to the storage. | | `circuitbreaker_failure_reset_time` | integer | no | Time in seconds GitLab will keep storage failure information. When no failures occur during this time, the failure information is reset. | -| `circuitbreaker_failure_wait_time` | integer | no | Time in seconds GitLab will block access to a failing storage to allow it to recover. | | `circuitbreaker_storage_timeout` | integer | no | Seconds to wait for a storage access attempt | | `clientside_sentry_dsn` | string | no | Required if `clientside_sentry_dsn` is enabled | | `clientside_sentry_enabled` | boolean | no | Enable Sentry error reporting for the client side | |