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Diffstat (limited to 'doc/administration/database_load_balancing.md')
| -rw-r--r-- | doc/administration/database_load_balancing.md | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/administration/database_load_balancing.md b/doc/administration/database_load_balancing.md index 64eca0b00f6..3b1151ae570 100644 --- a/doc/administration/database_load_balancing.md +++ b/doc/administration/database_load_balancing.md @@ -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 |