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Diffstat (limited to 'doc/administration/geo/replication/troubleshooting.md')
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diff --git a/doc/administration/geo/replication/troubleshooting.md b/doc/administration/geo/replication/troubleshooting.md index 1371e5d84c8..8f55ce99787 100644 --- a/doc/administration/geo/replication/troubleshooting.md +++ b/doc/administration/geo/replication/troubleshooting.md @@ -268,7 +268,7 @@ sudo gitlab-rake gitlab:geo:check GitLab Geo is available ... no Try fixing it: - Upload a new license that includes the GitLab Geo feature + Add a new license that includes the GitLab Geo feature For more information see: https://about.gitlab.com/features/gitlab-geo/ GitLab Geo is enabled ... Exception: PG::UndefinedTable: ERROR: relation "geo_nodes" does not exist @@ -1043,6 +1043,25 @@ To resolve this issue: the **primary** node using IPv4 in the `/etc/hosts` file. Alternatively, you should [enable IPv6 on the **primary** node](https://docs.gitlab.com/omnibus/settings/nginx.html#setting-the-nginx-listen-address-or-addresses). +### Secondary site returns 502 errors with Geo proxying + +When [Geo proxying for secondary sites](../secondary_proxy/index.md) is enabled, and the secondary site user interface returns +502 errors, it is possible that the response header proxied from the primary site is too large. + +Check the NGINX logs for errors similar to this example: + +```plaintext +2022/01/26 00:02:13 [error] 26641#0: *829148 upstream sent too big header while reading response header from upstream, client: 1.2.3.4, server: geo.staging.gitlab.com, request: "POST /users/sign_in HTTP/2.0", upstream: "http://unix:/var/opt/gitlab/gitlab-workhorse/sockets/socket:/users/sign_in", host: "geo.staging.gitlab.com", referrer: "https://geo.staging.gitlab.com/users/sign_in" +``` + +To resolve this issue: + +1. Set `nginx['proxy_custom_buffer_size'] = '8k'` in `/etc/gitlab.rb` on all web nodes on the secondary site. +1. Reconfigure the **secondary** using `sudo gitlab-ctl reconfigure`. + +If you still get this error, you can further increase the buffer size by repeating the steps above +and changing the `8k` size, for example by doubling it to `16k`. + ### Geo Admin Area shows 'Unknown' for health status and 'Request failed with status code 401' If using a load balancer, ensure that the load balancer's URL is set as the `external_url` in the |