Hi, Igniters!
We have 3 cluster states at the moment: inactive, active, read-only.
For getting current cluster state and changing them IgniteCluster has
methods:
- boolean active(), void active(boolean active) - for cluster
activation/deactivation
- boolean readOnly(), void readOnly(boolean readOnly) - for
enabling/disabling read-only mode.
Also we have control.sh commans for changing cluster state:
- --activate
- --deactivate
- --read-only-on
- --read-only-off
For me current API looks unuseful. My proposal:
1. Create enum ClusterState with values ACTIVE, INACTIVE, READ-ONLY.
2. Add methods to IgniteCluster:
- ClusterState state() returns current cluster state
- void state(ClusterState newState) changes cluster state to newState
state
3. Mark as deprecated the following methods in IgniteCluster: boolean
active(), void active(boolean active),
4. Add new command to control.sh: control.sh --set-state
(ACTIVE|INACTIVE|READ-ONLY)
5. Add warn message that command is depricated in control.sh. Commands:
--activate, --deactivate, --read-only-on, --read-only-off
I created ticket [1] in Jira for it.
What do you think about my proposal?
[1] https://issues.apache.org/jira/browse/IGNITE-12225
--
BR, Sergey Antonov
