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https://issues.apache.org/jira/browse/AVRO-1497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070214#comment-15070214
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vincent ye commented on AVRO-1497:
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It's good idea to add cache to improve the performance. But the synchronization
put up some cost. Without synchronization will cause thread-safe problem. I ran
into a infinite loop caused by multiple threads accessing
org.apache.avro.LogicalTypes#fromSchemaIgnoreInvalid to update CACHE
simultaneously. CACHE is simply backed by a java hashmap without any
synchronization. So It run into this race condition problem
http://mailinator.blogspot.com/2009/06/beautiful-race-condition.html .
Please take a look at it.
Thank you
> Add LogicalType support to Java
> -------------------------------
>
> Key: AVRO-1497
> URL: https://issues.apache.org/jira/browse/AVRO-1497
> Project: Avro
> Issue Type: New Feature
> Components: java
> Reporter: Ryan Blue
> Assignee: Ryan Blue
> Fix For: 1.7.8, 1.8.0
>
> Attachments: AVRO-1497-1.diff, Logical Types Performance Comparison -
> Sheet1.csv
>
>
> AVRO-1402 updates the Avro spec to include logical types, which are stored as
> existing types but interpreted as others. The next step is to implement
> LogicalType (in Java) that provides tools to attach a logical type to a
> schema, read a logical type, and validate logical types.
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