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https://issues.apache.org/jira/browse/CURATOR-549?focusedWorklogId=337876&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-337876
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ASF GitHub Bot logged work on CURATOR-549:
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Author: ASF GitHub Bot
Created on: 03/Nov/19 23:35
Start Date: 03/Nov/19 23:35
Worklog Time Spent: 10m
Work Description: Randgalt commented on pull request #335: [CURATOR-549]
Recipes based on Persistent Recursive Watchers
URL: https://github.com/apache/curator/pull/335
Note: this is based off #334
This PR adds several recipes that use the new ZOOKEEPER-1416 Persistent
Recursive watches from ZooKeeper 3.6.0.
## PersistentWatcher
A wrapper recipe that keeps a persistent (single or recursive) set and
active through disconnections, etc.
## CuratorCache
Completely re-written cache recipe that will replace `TreeCache`,
`NodeCache` and `PathChildrenCache`. With the benefit of persistent recursive
watchers, the implementation is far simpler, will use significantly less
resources and network calls, be easier to support and should be more stable and
performant.
Wrappers for the older cache's listeners are provided to help with
transitions.
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Issue Time Tracking
-------------------
Worklog Id: (was: 337876)
Time Spent: 1h (was: 50m)
> ZooKeeper 3.6 will add support for Persistent Recursive Watchers - Add
> Curator support
> --------------------------------------------------------------------------------------
>
> Key: CURATOR-549
> URL: https://issues.apache.org/jira/browse/CURATOR-549
> Project: Apache Curator
> Issue Type: Improvement
> Components: Client, Documentation, Framework, Recipes, Tests
> Affects Versions: 4.2.0
> Reporter: Jordan Zimmerman
> Assignee: Jordan Zimmerman
> Priority: Major
> Fix For: 4.3.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> ZOOKEEPER-1416 will add support for Persistent Recursive Watchers. This
> feature allows Curator to re-think/re-write the various cache recipes so that
> they're simpler, use less resources and more stable.
> * Change Curator to depend on ZooKeeper 3.6.x
> * Add a new module so that backward compatibility with 3.5 is ensured
> * Add new methods corresponding to {{ZooKeeper.addWatch()}}
> * Add a new recipe that enables a fully managed Persistent watch
> * Create new Cache recipes that use the new Persistent watch recipe
> * Replace internal usages of TreeCache/PathChildrenCache/NodeCache with new
> cache recipe
> * Deprecate TreeCache/PathChildrenCache/NodeCache
> * Updated docs/tests/etc
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