somandal opened a new pull request, #15190:
URL: https://github.com/apache/pinot/pull/15190
Add direct state transition from CONSUMING/ONLINE to DROPPED, increase state
transition priority for DROPPED
State transitions today:
- Today when segments are deleted, two state transitions occur to get them
from CONSUMING / ONLINE to DROPPED state:
- CONSUMING / ONLINE -> OFFLINE
- OFFLINE -> DROPPED
- All state transitions have the same priority
This PR will change the above behavior to:
- Add explicit state transitions from CONSUMING / ONLINE to DROPPED state.
Now deleted segments will undergo one of the following state transitions
directly:
- ONLINE -> DROPPED
- CONSUMING -> DROPPED
- OFFLINE -> DROPPED (this behavior hasn't changed)
- State transitions to DROPPED will be given higher priority (lower priority
value). This is to allow deletion to happen quicker and free up storage used by
segments
Testing:
- RealtimeQuickstart and debugger to validate that a single state transition
is received after the above change when deleting segments from IdealState.
Prior to the above changes, two state transitions as mentioned occurred
cc @Jackie-Jiang @xiangfu0
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