Hunter L created HELIX-745:
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Summary: [TASK] Make AssignableInstanceManager listen on data
changes to update AssignableInstances
Key: HELIX-745
URL: https://issues.apache.org/jira/browse/HELIX-745
Project: Apache Helix
Issue Type: Improvement
Reporter: Hunter L
Previously, although AssignableInstanceManager provided an API for updating its
AssignableInstances, this API was not being called at all. This RB fixes this.
Changelist:
1. Add a boolean flag in ClusterDataCache for LiveInstance, ClusterConfig,
InstanceConfig changes
2. If the ClusterDataCache is a taskDataCache, call
AssignableInstanceManager.updateAssignableInstances() when the said boolean
flag is true
3. Use thread-safe map in AssignableInstanceManager
4. Address the issue of targeted tasks having null taskIds (use pName
convention instead)
5. Address the issue of LiveInstanceChange not notifying the caches by
explicitly using setLiveInstance() function
6. Fix bug in restoreTaskAssignResult where tasks with null quota type were not
being restored properly
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