Comments (2)
guilload
commented on July 18, 2024
Hi @densone, we tested Quickwit with 100+ nodes, with a relatively small state. That's all we can say for now. How many nodes do you target? How many key-value pairs per node?
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densone
commented on July 18, 2024
Here I am a year later responding. I totally forgot I even wrote this and came back to ask the same question, so apologies for the late reply. Our main goal is host reachability. So for kv pairs maybe each host would have a handful.
The concept I am thinking is quite simple, if the group loses a member and agrees the member is lost it will notify the control plane. Seem like a feasible use case?
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Related Issues (20)
- Docs: Invariants on BTreeMap<ChitchatId, NodeState> (live_nodes) HOT 1
- a node can think a key is still alive despite it having deleted after a partition
- Change in chitchat gossiping priority.
- Key GC logic is broken HOT 1
- If a node to reset state exceeds the MTU, reset might not bring us to a version that exceeds other nodes last_gc
- Delta validation
- Add a possible TTL to keys.
- Avoid identifying resetted dead nodes as alive
- Have the write state emit its own stable version (aka last_gc_version today)
- Weird behavior when running tests HOT 1
- Remove NodeStateSnapshot
- Compress messages?
- Optimize `iter_stale_key_values` by checking the max version
- Custom transports don't have access to serialize HOT 1
- Support encryption
- Parameter `marked_for_deletion_grace_period` needs to be reviewed HOT 1
- Time is takes for a node to rejoin the cluster HOT 2
- Generation increase in chitchat does not really clean up the state
- Avoid set when set does not modify the existing value.
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