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https://issues.apache.org/jira/browse/AVRO-3987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17844487#comment-17844487
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Ashley Taylor commented on AVRO-3987:
-------------------------------------
PR
https://github.com/apache/avro/pull/2900
> Concurrency improvement for ReflectData FieldAccessors
> ------------------------------------------------------
>
> Key: AVRO-3987
> URL: https://issues.apache.org/jira/browse/AVRO-3987
> Project: Apache Avro
> Issue Type: Improvement
> Components: java
> Reporter: Ashley Taylor
> Assignee: Ashley Taylor
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently, within ReflectData subclass ClassAccessorData, there is a
> WeakHashMap called bySchema.
> This contains the FieldAccessor[] needed to build the Object.
> To prevent concurrency issues currently, the getAccessorsFor method is
> synchronized. This method is called per record read/write. Using an immutable
> replace approach with each changing and switching to a volatile object
> results in significant performance improvement
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