[IGNITE-11256] Implement read-only mode for grid

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9
• Labels: important read-only-mode
• Release Note: Introduced new cluster-wide state: read-only. In this state caches available for cache read operations. Cache operations with data modification (update, remove, clear, create, destroy and etc.) don't allow.
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Sergey Antonov
• Reporter: Alexey Scherbakov
• Created: 08/Feb/19 08:42
• Updated: 22/Jun/20 12:50
• Resolved: 12/Aug/19 00:05

Description

Should be triggered from control.sh utility.

Useful for maintenance work, for example checking partition consistency (idle_verify)

Issue Links

• blocks: IGNITE-11866 Add ability to activate cluster in read-only mode
• causes: IGNITE-12136 Test ClusterReadOnlyModeTest is flaky.
• causes: IGNITE-13076 Cluster read-only mode doesn't affect LOCAL caches
• causes: IGNITE-11719 Document cluster read-only mode
• causes: IGNITE-11863 .NET: Add cluster read-only mode API (status, run-time change)
• causes: IGNITE-12225 Add enum for cluster state
• causes: IGNITE-13071 Improve test coverage for read-only cluster state
• is related to: IGNITE-11859 CommandHandlerParsingTest#testExperimentalCommandIsDisabled() don't works
• is related to: IGNITE-9785 Introduce read-only state in local node context
• relates to: IGNITE-11795 JDBC thin datastreamer don't throws exception is case of problems on closing streamer.
• relates to: IGNITE-11889 Add security permissions cluster state change operations
• links to: dev-list discussion
• links to: GitHub Pull Request #6423
• links to: GitHub Pull Request #7238
• links to: MTCGA
• links to: Team City
• links to: upsource