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https://issues.apache.org/jira/browse/AVRO-1773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15094547#comment-15094547
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Ryan Blue commented on AVRO-1773:
---------------------------------
I'm marking this a duplicate of AVRO-1781 since we've been having more
discussion over there (even though this was filed first).
> Infinite loop caused by race condition
> --------------------------------------
>
> Key: AVRO-1773
> URL: https://issues.apache.org/jira/browse/AVRO-1773
> Project: Avro
> Issue Type: Sub-task
> Components: java
> Affects Versions: 1.7.7
> Reporter: vincent ye
> Priority: Critical
> Fix For: 1.7.8, 1.8.0
>
>
> org.apache.avro.LogicalTypes#fromSchemaIgnoreInvalid lookups and update
> CACHE. CACHE is backed by hashmap without synchronization. In a multithreaded
> environment, it causes a infinite loop in hashmap lookup. The race condition
> problem is described in the following blog
> http://mailinator.blogspot.com/2009/06/beautiful-race-condition.html.
> I experience this infinite loop in Spark jobs with high concurrency.
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