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https://issues.apache.org/jira/browse/CURATOR-374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15799009#comment-15799009
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ASF GitHub Bot commented on CURATOR-374:
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GitHub user swallez opened a pull request:
https://github.com/apache/curator/pull/185
CURATOR-374: Replace AtomicReferences by AtomicFieldUpdaters to save
allocations
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/swallez/curator master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/curator/pull/185.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #185
----
commit 2ae72d67a499c92a6ca0bea795d28b13b54d8b0c
Author: Sylvain Wallez <[email protected]>
Date: 2017-01-04T10:47:32Z
CURATOR-374: Replace AtomicReferences by AtomicFieldUpdaters to save
allocations
----
> Reduce memory usage in TreeCache
> --------------------------------
>
> Key: CURATOR-374
> URL: https://issues.apache.org/jira/browse/CURATOR-374
> Project: Apache Curator
> Issue Type: Improvement
> Components: Recipes
> Affects Versions: 3.2.1
> Reporter: Sylvain Wallez
> Assignee: Scott Blum
> Priority: Minor
>
> TreeCache uses 3 {{AtomicReference}} objects in its tree nodes to ensure
> atomic updates. On large trees (we have 1M nodes) this can cause a
> significant memory overhead.
> Using {{volatile}} fields with a {{AtomicReferenceFieldUpdater}} would avoid
> this while keeping the atomicity garantees.
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