kotovalexarian-likes-gitlab
/
gitlab-org--gitlab-foss
1
0
Fork 0
Code Releases Activity

Document DB load balancing SRV records handling

This commit is contained in:
Ahmad Sherif 2019-09-02 13:30:05 +00:00 committed by Ahmad Sherif
parent 273ba34c9e
commit 568e2684a2
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
doc/administration/database_load_balancing.md
View File

@ -146,7 +146,11 @@ The following options can be set:
| `use_tcp` | Lookup DNS resources using TCP instead of UDP | false |
If `record_type` is set to `SRV`, GitLab will continue to use a round-robin algorithm
and will ignore the `weight` and `priority` in the record.
and will ignore the `weight` and `priority` in the record. Since SRV records usually
return hostnames instead of IPs, GitLab will look for the IPs of returned hostnames
in the additional section of the SRV response. If no IP is found for a hostname, Gitlab
will query the configured `nameserver` for ANY record for each such hostname looking for A or AAAA records, eventually
dropping this hostname from rotation if it can't resolve its IP.
The `interval` value specifies the _minimum_ time between checks. If the A
record has a TTL greater than this value, then service discovery will honor said