Hello Igniters! I'm working on cluster read-only mode [1] feature. In this mode cluster will be available only for read operations, all data modification operations in user caches will be rejected with ClusterReadOnlyModeCheckedException. This feature could be helpfull for maintenance works (control.sh idle_verify/validate_indexes).
A few points about cluster read-only mode: 1) Read-only mode could be enabled on active cluster only. 2) Read-only mode doens't store on PDS (i.e. after cluster restart enabled read-only mode will be forgotten) 3) Updates to ignite-sys-cache will be available with enabled read-only mode. More informartion about implementation you could find in PR [2]. What do you think about this feature? [1] https://issues.apache.org/jira/browse/IGNITE-11256 [2] https://github.com/apache/ignite/pull/6423 -- BR, Sergey Antonov