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[8.4.x]: SQLStore: Prevent concurrent migrations (#44101) (#45447)

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* SQLStore: Prevent concurrent migrations (#44101)

* SQLStore: Prevent concurrent migrations

* Hide behind a feature toggle

* Configurable locking attempt timeout

* Update docs/sources/administration/configuration.md

Co-authored-by: Igor Suleymanov <radiohead@users.noreply.github.com>
Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
(cherry picked from commit d718ee1918)

* Resolve dependency cycle (#45427)

(cherry picked from commit 6a38ce2307)
This commit is contained in:
Sofia Papagiannaki
2022-02-16 11:23:54 +02:00
committed by GitHub
parent e43e5c3c42
commit 3d2fbcba2d
18 changed files with 510 additions and 41 deletions
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conf/sample.ini
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@@ -123,6 +123,9 @@
# For "sqlite3" only. cache mode setting used for connecting to the database. (private, shared)
;cache_mode = private
# For "mysql" only if lockingMigration feature toggle is set. How many seconds to wait before failing to lock the database for the migrations, default is 0.
;locking_attempt_timeout_sec = 0
################################### Data sources #########################
[datasources]
# Upper limit of data sources that Grafana will return. This limit is a temporary configuration and it will be deprecated when pagination will be introduced on the list data sources API.