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diff --git a/doc/administration/geo/replication/geo_validation_tests.md b/doc/administration/geo/replication/geo_validation_tests.md index 8fa5a45b579..f09422d1e26 100644 --- a/doc/administration/geo/replication/geo_validation_tests.md +++ b/doc/administration/geo/replication/geo_validation_tests.md @@ -29,7 +29,7 @@ The following are GitLab upgrade validation tests we performed. [Switch from repmgr to Patroni on a Geo primary site](https://gitlab.com/gitlab-org/gitlab/-/issues/224652): - Description: Tested switching from repmgr to Patroni on a multi-node Geo primary site. Used [the orchestrator tool](https://gitlab.com/gitlab-org/gitlab-orchestrator) to deploy a Geo installation with 3 database nodes managed by repmgr. With this approach, we were also able to address a related issue for [verifying a Geo installation with Patroni and PostgreSQL 11](https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/5113). -- Outcome: Partial success. We enabled Patroni on the primary site and set up database replication on the secondary site. However, we found that Patroni would delete the secondary site's replication slot whenever Patroni was restarted. Another issue is that when Patroni elects a new leader in the cluster, the secondary site will fail to automatically follow the new leader. Until these issues are resolved, we cannot officially support and recommend Patroni for Geo installations. +- Outcome: Partial success. We enabled Patroni on the primary site and set up database replication on the secondary site. However, we found that Patroni would delete the secondary site's replication slot whenever Patroni was restarted. Another issue is that when Patroni elects a new leader in the cluster, the secondary site fails to automatically follow the new leader. Until these issues are resolved, we cannot officially support and recommend Patroni for Geo installations. - Follow up issues/actions: - [Investigate permanent replication slot for Patroni with Geo single node secondary](https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/5528) @@ -213,7 +213,7 @@ The following are additional validation tests we performed. [Validate Object storage replication using GCP based object storage](https://gitlab.com/gitlab-org/gitlab/-/issues/351464): - Description: Tested the average time it takes for a single image to replicate from the primary object storage location to the secondary when using GCP based object storage replication and [GitLab based object storage replication](object_storage.md#enabling-gitlab-managed-object-storage-replication). This was tested by uploading a 1mb image to a project on the primary site every second for 60 seconds. The time was then measured until a image was available on the secondary site. This was achieved using a [Ruby Script](https://gitlab.com/gitlab-org/quality/geo-replication-tester). -- Outcome: GCP handles replication differently than other Cloud Providers. In GCP, the process is to a create single bucket that is either multi, dual or single region based. This means that the bucket will automatically store replicas in a region based on the option chosen. Even when using multi region, this will still only replicate within a single continent, the options being America, Europe, or Asia. At current there doesn't seem to be any way to replicate objects between continents using GCP based replication. For Geo managed replication the average time when replicating within the same region was 6 seconds, and when replicating cross region this rose to just 9 seconds. +- Outcome: GCP handles replication differently than other Cloud Providers. In GCP, the process is to a create single bucket that is either multi, dual, or single region based. This means that the bucket automatically stores replicas in a region based on the option chosen. Even when using multi region, this only replicates in a single continent, the options being America, Europe, or Asia. At current there doesn't seem to be any way to replicate objects between continents using GCP based replication. For Geo managed replication the average time when replicating in the same region was 6 seconds, and when replicating cross region this rose to just 9 seconds. ## Other tests |