[jira] [Resolved] (AVRO-1773) Infinite loop caused by race condition

["Ryan Blue (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AVRO-1773?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ryan Blue resolved AVRO-1773.
-----------------------------
    Resolution: Fixed

The patch for AVRO-1781 was just committed so I'm closing this.

> 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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