Remove ServerView from RealtimeIndexTasks and use overlord for handoffs to reduce load on ZK#2007
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Remove ServerView from RealtimeIndexTasks and use overlord for handoffs to reduce load on ZK#2007nishantmonu51 wants to merge 1 commit intoapache:masterfrom
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- fixes Peons put high load on zookeeper on disconnects #1970
- extracted out segment handoff callbacks in SegmentHandoffNotifier which is responsible for tracking segment handoffs and doing callbacks when handoff is complete.
- Overlord now maintains a view of segments in the cluster, this will affect the jam heap requirements for the overlord for large clusters.
- realtime Index Tasks now use SegmentHandoffCheckAction to check for handoffs.
- Realtime Nodes still use the old way of maintaining a FilteredServerView to check for handoffs.
- Add tests for individual components
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…zk load apache#1970 - fixes apache#1970 - extract out segment handoff callbacks in SegmentHandoffNotifier which is responsible for tracking segment handoffs and doing callbacks when handoff is complete. - Overlord now maintains a view of segments in the cluster, this will affect the jam heap requirements for the overlord for large clusters. - realtime Index Tasks now use SegmentHandoffCheckAction to check for handoffs. - Realtime Nodes still use the old way of maintaining a FilteredServerView to check for handoffs. - Add tests for individual components fix broker test after merging
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closing for - #2015 |
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