801 lines
32 KiB
Markdown
801 lines
32 KiB
Markdown
---
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stage: Enablement
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group: Geo
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
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type: howto
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---
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# Troubleshooting Geo **(PREMIUM ONLY)**
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Setting up Geo requires careful attention to details and sometimes it's easy to
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miss a step.
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Here is a list of steps you should take to attempt to fix problem:
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- Perform [basic troubleshooting](#basic-troubleshooting).
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- Fix any [replication errors](#fixing-replication-errors).
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- Fix any [common](#fixing-common-errors) errors.
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## Basic troubleshooting
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Before attempting more advanced troubleshooting:
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- Check [the health of the **secondary** node](#check-the-health-of-the-secondary-node).
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- Check [if PostgreSQL replication is working](#check-if-postgresql-replication-is-working).
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### Check the health of the **secondary** node
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Visit the **primary** node's **Admin Area > Geo** (`/admin/geo/nodes`) in
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your browser. We perform the following health checks on each **secondary** node
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to help identify if something is wrong:
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- Is the node running?
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- Is the node's secondary database configured for streaming replication?
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- Is the node's secondary tracking database configured?
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- Is the node's secondary tracking database connected?
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- Is the node's secondary tracking database up-to-date?
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For information on how to resolve common errors reported from the UI, see
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[Fixing Common Errors](#fixing-common-errors).
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If the UI is not working, or you are unable to log in, you can run the Geo
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health check manually to get this information as well as a few more details.
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#### Health check Rake task
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This Rake task can be run on an app node in the **primary** or **secondary**
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Geo nodes:
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```shell
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sudo gitlab-rake gitlab:geo:check
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```
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Example output:
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```plaintext
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Checking Geo ...
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GitLab Geo is available ... yes
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GitLab Geo is enabled ... yes
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This machine's Geo node name matches a database record ... yes, found a secondary node named "Shanghai"
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GitLab Geo secondary database is correctly configured ... yes
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Database replication enabled? ... yes
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Database replication working? ... yes
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GitLab Geo HTTP(S) connectivity ...
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* Can connect to the primary node ... yes
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HTTP/HTTPS repository cloning is enabled ... yes
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Machine clock is synchronized ... yes
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Git user has default SSH configuration? ... yes
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OpenSSH configured to use AuthorizedKeysCommand ... yes
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GitLab configured to disable writing to authorized_keys file ... yes
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GitLab configured to store new projects in hashed storage? ... yes
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All projects are in hashed storage? ... yes
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Checking Geo ... Finished
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```
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#### Sync status Rake task
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Current sync information can be found manually by running this Rake task on any
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**secondary** app node:
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```shell
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sudo gitlab-rake geo:status
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```
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Example output:
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```plaintext
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http://secondary.example.com/
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-----------------------------------------------------
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GitLab Version: 11.10.4-ee
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Geo Role: Secondary
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Health Status: Healthy
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Repositories: 289/289 (100%)
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Verified Repositories: 289/289 (100%)
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Wikis: 289/289 (100%)
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Verified Wikis: 289/289 (100%)
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LFS Objects: 8/8 (100%)
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Attachments: 5/5 (100%)
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CI job artifacts: 0/0 (0%)
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Repositories Checked: 0/289 (0%)
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Sync Settings: Full
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Database replication lag: 0 seconds
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Last event ID seen from primary: 10215 (about 2 minutes ago)
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Last event ID processed by cursor: 10215 (about 2 minutes ago)
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Last status report was: 2 minutes ago
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```
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### Check if PostgreSQL replication is working
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To check if PostgreSQL replication is working, check if:
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- [Nodes are pointing to the correct database instance](#are-nodes-pointing-to-the-correct-database-instance).
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- [Geo can detect the current node correctly](#can-geo-detect-the-current-node-correctly).
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#### Are nodes pointing to the correct database instance?
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You should make sure your **primary** Geo node points to the instance with
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writing permissions.
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Any **secondary** nodes should point only to read-only instances.
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#### Can Geo detect the current node correctly?
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Geo finds the current machine's Geo node name in `/etc/gitlab/gitlab.rb` by:
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- Using the `gitlab_rails['geo_node_name']` setting.
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- If that is not defined, using the `external_url` setting.
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This name is used to look up the node with the same **Name** in **Admin Area > Geo**.
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To check if the current machine has a node name that matches a node in the
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database, run the check task:
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```shell
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sudo gitlab-rake gitlab:geo:check
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```
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It displays the current machine's node name and whether the matching database
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record is a **primary** or **secondary** node.
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```plaintext
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This machine's Geo node name matches a database record ... yes, found a secondary node named "Shanghai"
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```
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```plaintext
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This machine's Geo node name matches a database record ... no
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Try fixing it:
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You could add or update a Geo node database record, setting the name to "https://example.com/".
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Or you could set this machine's Geo node name to match the name of an existing database record: "London", "Shanghai"
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For more information see:
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doc/administration/geo/replication/troubleshooting.md#can-geo-detect-the-current-node-correctly
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```
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## Fixing errors found when running the Geo check Rake task
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When running this Rake task, you may see errors if the nodes are not properly configured:
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```shell
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sudo gitlab-rake gitlab:geo:check
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```
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1. Rails did not provide a password when connecting to the database
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```plaintext
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Checking Geo ...
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GitLab Geo is available ... Exception: fe_sendauth: no password supplied
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GitLab Geo is enabled ... Exception: fe_sendauth: no password supplied
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...
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Checking Geo ... Finished
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```
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- Ensure that you have the `gitlab_rails['db_password']` set to the plain text-password used when creating the hash for `postgresql['sql_user_password']`.
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1. Rails is unable to connect to the database
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```plaintext
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Checking Geo ...
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GitLab Geo is available ... Exception: FATAL: no pg_hba.conf entry for host "1.1.1.1", user "gitlab", database "gitlabhq_production", SSL on
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FATAL: no pg_hba.conf entry for host "1.1.1.1", user "gitlab", database "gitlabhq_production", SSL off
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GitLab Geo is enabled ... Exception: FATAL: no pg_hba.conf entry for host "1.1.1.1", user "gitlab", database "gitlabhq_production", SSL on
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FATAL: no pg_hba.conf entry for host "1.1.1.1", user "gitlab", database "gitlabhq_production", SSL off
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...
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Checking Geo ... Finished
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```
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- Ensure that you have the IP address of the rails node included in `postgresql['md5_auth_cidr_addresses']`.
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- Ensure that you have included the subnet mask on the IP address: `postgresql['md5_auth_cidr_addresses'] = ['1.1.1.1/32']`.
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1. Rails has supplied the incorrect password
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```plaintext
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Checking Geo ...
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GitLab Geo is available ... Exception: FATAL: password authentication failed for user "gitlab"
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FATAL: password authentication failed for user "gitlab"
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GitLab Geo is enabled ... Exception: FATAL: password authentication failed for user "gitlab"
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FATAL: password authentication failed for user "gitlab"
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...
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Checking Geo ... Finished
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```
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- Verify the correct password is set for `gitlab_rails['db_password']` that was used when creating the hash in `postgresql['sql_user_password']` by running `gitlab-ctl pg-password-md5 gitlab` and entering the password.
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1. Check returns `not a secondary node`
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```plaintext
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Checking Geo ...
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GitLab Geo is available ... yes
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GitLab Geo is enabled ... yes
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GitLab Geo secondary database is correctly configured ... not a secondary node
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Database replication enabled? ... not a secondary node
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...
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Checking Geo ... Finished
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```
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- Ensure that you have added the secondary node in the Admin Area of the **primary** node.
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- Ensure that you entered the `external_url` or `gitlab_rails['geo_node_name']` when adding the secondary node in the admin are of the **primary** node.
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- Prior to GitLab 12.4, edit the secondary node in the Admin Area of the **primary** node and ensure that there is a trailing `/` in the `Name` field.
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1. Check returns `Exception: PG::UndefinedTable: ERROR: relation "geo_nodes" does not exist`
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```plaintext
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Checking Geo ...
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GitLab Geo is available ... no
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Try fixing it:
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Upload a new license that includes the GitLab Geo feature
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For more information see:
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https://about.gitlab.com/features/gitlab-geo/
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GitLab Geo is enabled ... Exception: PG::UndefinedTable: ERROR: relation "geo_nodes" does not exist
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LINE 8: WHERE a.attrelid = '"geo_nodes"'::regclass
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^
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: SELECT a.attname, format_type(a.atttypid, a.atttypmod),
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pg_get_expr(d.adbin, d.adrelid), a.attnotnull, a.atttypid, a.atttypmod,
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c.collname, col_description(a.attrelid, a.attnum) AS comment
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FROM pg_attribute a
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LEFT JOIN pg_attrdef d ON a.attrelid = d.adrelid AND a.attnum = d.adnum
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LEFT JOIN pg_type t ON a.atttypid = t.oid
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LEFT JOIN pg_collation c ON a.attcollation = c.oid AND a.attcollation <> t.typcollation
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WHERE a.attrelid = '"geo_nodes"'::regclass
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AND a.attnum > 0 AND NOT a.attisdropped
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ORDER BY a.attnum
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...
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Checking Geo ... Finished
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```
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When performing a PostgreSQL major version (9 > 10) update this is expected. Follow:
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- [initiate-the-replication-process](../setup/database.md#step-3-initiate-the-replication-process)
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## Fixing replication errors
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The following sections outline troubleshooting steps for fixing replication
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errors (indicated by `Database replication working? ... no` in the
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[`geo:check` output](#health-check-rake-task).
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### Message: `ERROR: replication slots can only be used if max_replication_slots > 0`?
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This means that the `max_replication_slots` PostgreSQL variable needs to
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be set on the **primary** database. In GitLab 9.4, we have made this setting
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default to 1. You may need to increase this value if you have more
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**secondary** nodes.
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Be sure to restart PostgreSQL for this to take
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effect. See the [PostgreSQL replication
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setup](../setup/database.md#postgresql-replication) guide for more details.
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### Message: `FATAL: could not start WAL streaming: ERROR: replication slot "geo_secondary_my_domain_com" does not exist`?
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This occurs when PostgreSQL does not have a replication slot for the
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**secondary** node by that name.
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You may want to rerun the [replication
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process](../setup/database.md) on the **secondary** node .
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### Message: "Command exceeded allowed execution time" when setting up replication?
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This may happen while [initiating the replication process](../setup/database.md#step-3-initiate-the-replication-process) on the **secondary** node,
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and indicates that your initial dataset is too large to be replicated in the default timeout (30 minutes).
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Re-run `gitlab-ctl replicate-geo-database`, but include a larger value for
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`--backup-timeout`:
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```shell
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sudo gitlab-ctl \
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replicate-geo-database \
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--host=<primary_node_hostname> \
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--slot-name=<secondary_slot_name> \
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--backup-timeout=21600
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```
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This will give the initial replication up to six hours to complete, rather than
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the default thirty minutes. Adjust as required for your installation.
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### Message: "PANIC: could not write to file `pg_xlog/xlogtemp.123`: No space left on device"
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Determine if you have any unused replication slots in the **primary** database. This can cause large amounts of
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log data to build up in `pg_xlog`. Removing the unused slots can reduce the amount of space used in the `pg_xlog`.
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1. Start a PostgreSQL console session:
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```shell
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sudo gitlab-psql
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```
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NOTE:
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Using `gitlab-rails dbconsole` will not work, because managing replication slots requires superuser permissions.
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1. View your replication slots with:
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```sql
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SELECT * FROM pg_replication_slots;
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```
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Slots where `active` is `f` are not active.
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- When this slot should be active, because you have a **secondary** node configured using that slot,
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log in to that **secondary** node and check the PostgreSQL logs why the replication is not running.
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- If you are no longer using the slot (e.g. you no longer have Geo enabled), you can remove it with in the
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PostgreSQL console session:
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```sql
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SELECT pg_drop_replication_slot('<name_of_extra_slot>');
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```
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### Message: "ERROR: canceling statement due to conflict with recovery"
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This error may rarely occur under normal usage, and the system is resilient
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enough to recover.
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However, under certain conditions, some database queries on secondaries may run
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excessively long, which increases the frequency of this error. At some point,
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some of these queries will never be able to complete due to being canceled
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every time.
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These long-running queries are
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[planned to be removed in the future](https://gitlab.com/gitlab-org/gitlab/-/issues/34269),
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but as a workaround, we recommend enabling
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[hot_standby_feedback](https://www.postgresql.org/docs/10/hot-standby.html#HOT-STANDBY-CONFLICT).
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This increases the likelihood of bloat on the **primary** node as it prevents
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`VACUUM` from removing recently-dead rows. However, it has been used
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successfully in production on GitLab.com.
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To enable `hot_standby_feedback`, add the following to `/etc/gitlab/gitlab.rb`
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on the **secondary** node:
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```ruby
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postgresql['hot_standby_feedback'] = 'on'
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```
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Then reconfigure GitLab:
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```shell
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sudo gitlab-ctl reconfigure
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```
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To help us resolve this problem, consider commenting on
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[the issue](https://gitlab.com/gitlab-org/gitlab/-/issues/4489).
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### Message: `LOG: invalid CIDR mask in address`
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This happens on wrongly-formatted addresses in `postgresql['md5_auth_cidr_addresses']`.
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```plaintext
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2020-03-20_23:59:57.60499 LOG: invalid CIDR mask in address "***"
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2020-03-20_23:59:57.60501 CONTEXT: line 74 of configuration file "/var/opt/gitlab/postgresql/data/pg_hba.conf"
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```
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To fix this, update the IP addresses in `/etc/gitlab/gitlab.rb` under `postgresql['md5_auth_cidr_addresses']`
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to respect the CIDR format (i.e. `1.2.3.4/32`).
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### Message: `LOG: invalid IP mask "md5": Name or service not known`
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This happens when you have added IP addresses without a subnet mask in `postgresql['md5_auth_cidr_addresses']`.
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```plaintext
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2020-03-21_00:23:01.97353 LOG: invalid IP mask "md5": Name or service not known
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2020-03-21_00:23:01.97354 CONTEXT: line 75 of configuration file "/var/opt/gitlab/postgresql/data/pg_hba.conf"
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```
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To fix this, add the subnet mask in `/etc/gitlab/gitlab.rb` under `postgresql['md5_auth_cidr_addresses']`
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to respect the CIDR format (i.e. `1.2.3.4/32`).
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### Message: `Found data in the gitlabhq_production database!` when running `gitlab-ctl replicate-geo-database`
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This happens if data is detected in the `projects` table. When one or more projects are detected, the operation
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is aborted to prevent accidental data loss. To bypass this message, pass the `--force` option to the command.
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In GitLab 13.4, a seed project is added when GitLab is first installed. This makes it necessary to pass `--force` even
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on a new Geo secondary node. There is an [issue to account for seed projects](https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/5618)
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when checking the database.
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### Very large repositories never successfully synchronize on the **secondary** node
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GitLab places a timeout on all repository clones, including project imports
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and Geo synchronization operations. If a fresh `git clone` of a repository
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on the **primary** takes more than the default three hours, you may be affected by this.
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To increase the timeout, add the following line to `/etc/gitlab/gitlab.rb`
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on the **secondary** node:
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```ruby
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gitlab_rails['gitlab_shell_git_timeout'] = 14400
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```
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Then reconfigure GitLab:
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```shell
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sudo gitlab-ctl reconfigure
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```
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This will increase the timeout to four hours (14400 seconds). Choose a time
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long enough to accommodate a full clone of your largest repositories.
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### New LFS objects are never replicated
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If new LFS objects are never replicated to secondary Geo nodes, check the version of
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GitLab you are running. GitLab versions 11.11.x or 12.0.x are affected by
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[a bug that results in new LFS objects not being replicated to Geo secondary nodes](https://gitlab.com/gitlab-org/gitlab/-/issues/32696).
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To resolve the issue, upgrade to GitLab 12.1 or newer.
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### Failures during backfill
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During a [backfill](../index.md#backfill), failures are scheduled to be retried at the end
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of the backfill queue, therefore these failures only clear up **after** the backfill completes.
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### Resetting Geo **secondary** node replication
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If you get a **secondary** node in a broken state and want to reset the replication state,
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to start again from scratch, there are a few steps that can help you:
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1. Stop Sidekiq and the Geo LogCursor
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It's possible to make Sidekiq stop gracefully, but making it stop getting new jobs and
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wait until the current jobs to finish processing.
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You need to send a **SIGTSTP** kill signal for the first phase and them a **SIGTERM**
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when all jobs have finished. Otherwise just use the `gitlab-ctl stop` commands.
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```shell
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gitlab-ctl status sidekiq
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# run: sidekiq: (pid 10180) <- this is the PID you will use
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kill -TSTP 10180 # change to the correct PID
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gitlab-ctl stop sidekiq
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gitlab-ctl stop geo-logcursor
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```
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You can watch Sidekiq logs to know when Sidekiq jobs processing have finished:
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```shell
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gitlab-ctl tail sidekiq
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```
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1. Rename repository storage folders and create new ones. If you are not concerned about possible orphaned directories and files, then you can simply skip this step.
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```shell
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mv /var/opt/gitlab/git-data/repositories /var/opt/gitlab/git-data/repositories.old
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mkdir -p /var/opt/gitlab/git-data/repositories
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chown git:git /var/opt/gitlab/git-data/repositories
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```
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NOTE:
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You may want to remove the `/var/opt/gitlab/git-data/repositories.old` in the future
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as soon as you confirmed that you don't need it anymore, to save disk space.
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1. _(Optional)_ Rename other data folders and create new ones
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WARNING:
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You may still have files on the **secondary** node that have been removed from **primary** node but
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removal have not been reflected. If you skip this step, they will never be removed
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from this Geo node.
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Any uploaded content like file attachments, avatars or LFS objects are stored in a
|
|
subfolder in one of the two paths below:
|
|
|
|
- `/var/opt/gitlab/gitlab-rails/shared`
|
|
- `/var/opt/gitlab/gitlab-rails/uploads`
|
|
|
|
To rename all of them:
|
|
|
|
```shell
|
|
gitlab-ctl stop
|
|
|
|
mv /var/opt/gitlab/gitlab-rails/shared /var/opt/gitlab/gitlab-rails/shared.old
|
|
mkdir -p /var/opt/gitlab/gitlab-rails/shared
|
|
|
|
mv /var/opt/gitlab/gitlab-rails/uploads /var/opt/gitlab/gitlab-rails/uploads.old
|
|
mkdir -p /var/opt/gitlab/gitlab-rails/uploads
|
|
|
|
gitlab-ctl start geo-postgresql
|
|
```
|
|
|
|
Reconfigure to recreate the folders and make sure permissions and ownership
|
|
are correct:
|
|
|
|
```shell
|
|
gitlab-ctl reconfigure
|
|
```
|
|
|
|
1. Reset the Tracking Database
|
|
|
|
```shell
|
|
gitlab-rake geo:db:drop # on a secondary app node
|
|
gitlab-ctl reconfigure # on the tracking database node
|
|
gitlab-rake geo:db:setup # on a secondary app node
|
|
```
|
|
|
|
1. Restart previously stopped services
|
|
|
|
```shell
|
|
gitlab-ctl start
|
|
```
|
|
|
|
## Fixing errors during a PostgreSQL upgrade or downgrade
|
|
|
|
### Message: `ERROR: psql: FATAL: role "gitlab-consul" does not exist`
|
|
|
|
When
|
|
[upgrading PostgreSQL on a Geo instance](https://docs.gitlab.com/omnibus/settings/database.html#upgrading-a-geo-instance), you might encounter the
|
|
following error:
|
|
|
|
```plaintext
|
|
$ sudo gitlab-ctl pg-upgrade --target-version=11
|
|
Checking for an omnibus managed postgresql: OK
|
|
Checking if postgresql['version'] is set: OK
|
|
Checking if we already upgraded: NOT OK
|
|
Checking for a newer version of PostgreSQL to install
|
|
Upgrading PostgreSQL to 11.7
|
|
Checking if PostgreSQL bin files are symlinked to the expected location: OK
|
|
Waiting 30 seconds to ensure tasks complete before PostgreSQL upgrade.
|
|
See https://docs.gitlab.com/omnibus/settings/database.html#upgrade-packaged-postgresql-server for details
|
|
If you do not want to upgrade the PostgreSQL server at this time, enter Ctrl-C and see the documentation for details
|
|
|
|
Please hit Ctrl-C now if you want to cancel the operation.
|
|
..............................Detected an HA cluster.
|
|
Error running command: /opt/gitlab/embedded/bin/psql -qt -d gitlab_repmgr -h /var/opt/gitlab/postgresql -p 5432 -c "SELECT name FROM repmgr_gitlab_cluster.repl_nodes WHERE type='master' AND active != 'f'" -U gitlab-consul
|
|
ERROR: psql: FATAL: role "gitlab-consul" does not exist
|
|
Traceback (most recent call last):
|
|
10: from /opt/gitlab/embedded/bin/omnibus-ctl:23:in `<main>'
|
|
9: from /opt/gitlab/embedded/bin/omnibus-ctl:23:in `load'
|
|
8: from /opt/gitlab/embedded/lib/ruby/gems/2.6.0/gems/omnibus-ctl-0.6.0/bin/omnibus-ctl:31:in `<top (required)>'
|
|
7: from /opt/gitlab/embedded/lib/ruby/gems/2.6.0/gems/omnibus-ctl-0.6.0/lib/omnibus-ctl.rb:746:in `run'
|
|
6: from /opt/gitlab/embedded/lib/ruby/gems/2.6.0/gems/omnibus-ctl-0.6.0/lib/omnibus-ctl.rb:204:in `block in add_command_under_category'
|
|
5: from /opt/gitlab/embedded/service/omnibus-ctl/pg-upgrade.rb:171:in `block in load_file'
|
|
4: from /opt/gitlab/embedded/service/omnibus-ctl-ee/lib/repmgr.rb:248:in `is_master?'
|
|
3: from /opt/gitlab/embedded/service/omnibus-ctl-ee/lib/repmgr.rb:100:in `execute_psql'
|
|
2: from /opt/gitlab/embedded/service/omnibus-ctl-ee/lib/repmgr.rb:113:in `cmd'
|
|
1: from /opt/gitlab/embedded/lib/ruby/gems/2.6.0/gems/mixlib-shellout-3.0.9/lib/mixlib/shellout.rb:287:in `error!'
|
|
/opt/gitlab/embedded/lib/ruby/gems/2.6.0/gems/mixlib-shellout-3.0.9/lib/mixlib/shellout.rb:300:in `invalid!': Expected process to exit with [0], but received '2' (Mixlib::ShellOut::ShellCommandFailed)
|
|
---- Begin output of /opt/gitlab/embedded/bin/psql -qt -d gitlab_repmgr -h /var/opt/gitlab/postgresql -p 5432 -c "SELECT name FROM repmgr_gitlab_cluster.repl_nodes WHERE type='master' AND active != 'f'" -U gitlab-consul ----
|
|
STDOUT:
|
|
STDERR: psql: FATAL: role "gitlab-consul" does not exist
|
|
---- End output of /opt/gitlab/embedded/bin/psql -qt -d gitlab_repmgr -h /var/opt/gitlab/postgresql -p 5432 -c "SELECT name FROM repmgr_gitlab_cluster.repl_nodes WHERE type='master' AND active != 'f'" -U gitlab-consul ----
|
|
Ran /opt/gitlab/embedded/bin/psql -qt -d gitlab_repmgr -h /var/opt/gitlab/postgresql -p 5432 -c "SELECT name FROM repmgr_gitlab_cluster.repl_nodes WHERE type='master' AND active != 'f'" -U gitlab-consul returned 2
|
|
```
|
|
|
|
If you are upgrading the PostgreSQL read-replica of a Geo secondary node, and
|
|
you are not using `consul` or `repmgr`, you may need to disable `consul` and/or
|
|
`repmgr` services in `gitlab.rb`:
|
|
|
|
```ruby
|
|
consul['enable'] = false
|
|
repmgr['enable'] = false
|
|
```
|
|
|
|
Then reconfigure GitLab:
|
|
|
|
```shell
|
|
sudo gitlab-ctl reconfigure
|
|
```
|
|
|
|
## Fixing errors during a failover or when promoting a secondary to a primary node
|
|
|
|
The following are possible errors that might be encountered during failover or
|
|
when promoting a secondary to a primary node with strategies to resolve them.
|
|
|
|
### Message: ActiveRecord::RecordInvalid: Validation failed: Name has already been taken
|
|
|
|
When [promoting a **secondary** node](../disaster_recovery/index.md#step-3-promoting-a-secondary-node),
|
|
you might encounter the following error:
|
|
|
|
```plaintext
|
|
Running gitlab-rake geo:set_secondary_as_primary...
|
|
|
|
rake aborted!
|
|
ActiveRecord::RecordInvalid: Validation failed: Name has already been taken
|
|
/opt/gitlab/embedded/service/gitlab-rails/ee/lib/tasks/geo.rake:236:in `block (3 levels) in <top (required)>'
|
|
/opt/gitlab/embedded/service/gitlab-rails/ee/lib/tasks/geo.rake:221:in `block (2 levels) in <top (required)>'
|
|
/opt/gitlab/embedded/bin/bundle:23:in `load'
|
|
/opt/gitlab/embedded/bin/bundle:23:in `<main>'
|
|
Tasks: TOP => geo:set_secondary_as_primary
|
|
(See full trace by running task with --trace)
|
|
|
|
You successfully promoted this node!
|
|
```
|
|
|
|
If you encounter this message when running `gitlab-rake geo:set_secondary_as_primary`
|
|
or `gitlab-ctl promote-to-primary-node`, either:
|
|
|
|
- Enter a Rails console and run:
|
|
|
|
```ruby
|
|
Rails.application.load_tasks; nil
|
|
Gitlab::Geo.expire_cache!
|
|
Rake::Task['geo:set_secondary_as_primary'].invoke
|
|
```
|
|
|
|
- Upgrade to GitLab 12.6.3 or newer if it is safe to do so. For example,
|
|
if the failover was just a test. A [caching-related
|
|
bug](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/22021) was
|
|
fixed.
|
|
|
|
### Message: ActiveRecord::RecordInvalid: Validation failed: Enabled Geo primary node cannot be disabled
|
|
|
|
If you disabled a secondary node, either with the [replication pause task](../index.md#pausing-and-resuming-replication)
|
|
(13.2) or by using the user interface (13.1 and earlier), you must first
|
|
re-enable the node before you can continue. This is fixed in 13.4.
|
|
|
|
Run the following command, replacing `https://<secondary url>/` with the URL
|
|
for your secondary server, using either `http` or `https`, and ensuring that you
|
|
end the URL with a slash (`/`):
|
|
|
|
```shell
|
|
sudo gitlab-rails dbconsole
|
|
|
|
UPDATE geo_nodes SET enabled = true WHERE url = 'https://<secondary url>/' AND enabled = false;"
|
|
```
|
|
|
|
This should update 1 row.
|
|
|
|
### Message: ``NoMethodError: undefined method `secondary?' for nil:NilClass``
|
|
|
|
When [promoting a **secondary** node](../disaster_recovery/index.md#step-3-promoting-a-secondary-node),
|
|
you might encounter the following error:
|
|
|
|
```plaintext
|
|
sudo gitlab-rake geo:set_secondary_as_primary
|
|
|
|
rake aborted!
|
|
NoMethodError: undefined method `secondary?' for nil:NilClass
|
|
/opt/gitlab/embedded/service/gitlab-rails/ee/lib/tasks/geo.rake:232:in `block (3 levels) in <top (required)>'
|
|
/opt/gitlab/embedded/service/gitlab-rails/ee/lib/tasks/geo.rake:221:in `block (2 levels) in <top (required)>'
|
|
/opt/gitlab/embedded/bin/bundle:23:in `load'
|
|
/opt/gitlab/embedded/bin/bundle:23:in `<main>'
|
|
Tasks: TOP => geo:set_secondary_as_primary
|
|
(See full trace by running task with --trace)
|
|
```
|
|
|
|
This command is intended to be executed on a secondary node only, and this error
|
|
is displayed if you attempt to run this command on a primary node.
|
|
|
|
### Message: `sudo: gitlab-pg-ctl: command not found`
|
|
|
|
When
|
|
[promoting a **secondary** node with multiple servers](../disaster_recovery/index.md#promoting-a-secondary-node-with-multiple-servers),
|
|
you need to run the `gitlab-pg-ctl` command to promote the PostgreSQL
|
|
read-replica database.
|
|
|
|
In GitLab 12.8 and earlier, this command will fail with the message:
|
|
|
|
```plaintext
|
|
sudo: gitlab-pg-ctl: command not found
|
|
```
|
|
|
|
In this case, the workaround is to use the full path to the binary, for example:
|
|
|
|
```shell
|
|
sudo /opt/gitlab/embedded/bin/gitlab-pg-ctl promote
|
|
```
|
|
|
|
GitLab 12.9 and later are [unaffected by this error](https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/5147).
|
|
|
|
### Two-factor authentication is broken after a failover
|
|
|
|
The setup instructions for Geo prior to 10.5 failed to replicate the
|
|
`otp_key_base` secret, which is used to encrypt the two-factor authentication
|
|
secrets stored in the database. If it differs between **primary** and **secondary**
|
|
nodes, users with two-factor authentication enabled won't be able to log in
|
|
after a failover.
|
|
|
|
If you still have access to the old **primary** node, you can follow the
|
|
instructions in the
|
|
[Upgrading to GitLab 10.5](../replication/version_specific_updates.md#updating-to-gitlab-105)
|
|
section to resolve the error. Otherwise, the secret is lost and you'll need to
|
|
[reset two-factor authentication for all users](../../../security/two_factor_authentication.md#disabling-2fa-for-everyone).
|
|
|
|
## Expired artifacts
|
|
|
|
If you notice for some reason there are more artifacts on the Geo
|
|
secondary node than on the Geo primary node, you can use the Rake task
|
|
to [cleanup orphan artifact files](../../../raketasks/cleanup.md#remove-orphan-artifact-files).
|
|
|
|
On a Geo **secondary** node, this command will also clean up all Geo
|
|
registry record related to the orphan files on disk.
|
|
|
|
## Fixing sign in errors
|
|
|
|
### Message: The redirect URI included is not valid
|
|
|
|
If you are able to log in to the **primary** node, but you receive this error
|
|
when attempting to log into a **secondary**, you should check that the Geo
|
|
node's URL matches its external URL.
|
|
|
|
1. On the primary, visit **Admin Area > Geo**.
|
|
1. Find the affected **secondary** and click **Edit**.
|
|
1. Ensure the **URL** field matches the value found in `/etc/gitlab/gitlab.rb`
|
|
in `external_url "https://gitlab.example.com"` on the frontend server(s) of
|
|
the **secondary** node.
|
|
|
|
## Fixing common errors
|
|
|
|
This section documents common errors reported in the Admin UI and how to fix them.
|
|
|
|
### Geo database configuration file is missing
|
|
|
|
GitLab cannot find or doesn't have permission to access the `database_geo.yml` configuration file.
|
|
|
|
In an Omnibus GitLab installation, the file should be in `/var/opt/gitlab/gitlab-rails/etc`.
|
|
If it doesn't exist or inadvertent changes have been made to it, run `sudo gitlab-ctl reconfigure` to restore it to its correct state.
|
|
|
|
If this path is mounted on a remote volume, ensure your volume configuration
|
|
has the correct permissions.
|
|
|
|
### An existing tracking database cannot be reused
|
|
|
|
Geo cannot reuse an existing tracking database.
|
|
|
|
It is safest to use a fresh secondary, or reset the whole secondary by following
|
|
[Resetting Geo secondary node replication](#resetting-geo-secondary-node-replication).
|
|
|
|
### Geo node has a database that is writable which is an indication it is not configured for replication with the primary node
|
|
|
|
This error refers to a problem with the database replica on a **secondary** node,
|
|
which Geo expects to have access to. It usually means, either:
|
|
|
|
- An unsupported replication method was used (for example, logical replication).
|
|
- The instructions to setup a [Geo database replication](../setup/database.md) were not followed correctly.
|
|
- Your database connection details are incorrect, that is you have specified the wrong
|
|
user in your `/etc/gitlab/gitlab.rb` file.
|
|
|
|
A common source of confusion with **secondary** nodes is that it requires two separate
|
|
PostgreSQL instances:
|
|
|
|
- A read-only replica of the **primary** node.
|
|
- A regular, writable instance that holds replication metadata. That is, the Geo tracking database.
|
|
|
|
### Geo node does not appear to be replicating the database from the primary node
|
|
|
|
The most common problems that prevent the database from replicating correctly are:
|
|
|
|
- **Secondary** nodes cannot reach the **primary** node. Check credentials, firewall rules, etc.
|
|
- SSL certificate problems. Make sure you copied `/etc/gitlab/gitlab-secrets.json` from the **primary** node.
|
|
- Database storage disk is full.
|
|
- Database replication slot is misconfigured.
|
|
- Database is not using a replication slot or another alternative and cannot catch-up because WAL files were purged.
|
|
|
|
Make sure you follow the [Geo database replication](../setup/database.md) instructions for supported configuration.
|
|
|
|
### Geo database version (...) does not match latest migration (...)
|
|
|
|
If you are using Omnibus GitLab installation, something might have failed during upgrade. You can:
|
|
|
|
- Run `sudo gitlab-ctl reconfigure`.
|
|
- Manually trigger the database migration by running: `sudo gitlab-rake geo:db:migrate` as root on the **secondary** node.
|
|
|
|
### GitLab indicates that more than 100% of repositories were synced
|
|
|
|
This can be caused by orphaned records in the project registry. You can clear them
|
|
[using a Rake task](../../../administration/raketasks/geo.md#remove-orphaned-project-registries).
|
|
|
|
### Geo Admin Area returns 404 error for a secondary node
|
|
|
|
Sometimes `sudo gitlab-rake gitlab:geo:check` indicates that the **secondary** node is
|
|
healthy, but a 404 error for the **secondary** node is returned in the Geo Admin Area on
|
|
the **primary** node.
|
|
|
|
To resolve this issue:
|
|
|
|
- Try restarting the **secondary** using `sudo gitlab-ctl restart`.
|
|
- Check `/var/log/gitlab/gitlab-rails/geo.log` to see if the **secondary** node is
|
|
using IPv6 to send its status to the **primary** node. If it is, add an entry to
|
|
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).
|
|
|
|
## Fixing client errors
|
|
|
|
### Authorization errors from LFS HTTP(s) client requests
|
|
|
|
You may have problems if you're running a version of [Git LFS](https://git-lfs.github.com/) before 2.4.2.
|
|
As noted in [this authentication issue](https://github.com/git-lfs/git-lfs/issues/3025),
|
|
requests redirected from the secondary to the primary node do not properly send the
|
|
Authorization header. This may result in either an infinite `Authorization <-> Redirect`
|
|
loop, or Authorization errors.
|