[
https://issues.apache.org/jira/browse/HIVE-7409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14063119#comment-14063119
]
Xuefu Zhang commented on HIVE-7409:
-----------------------------------
Not sure if I follow completely. JDK-7031759 is caused by calling
getAnnotations() from sysnchronized static method. However, I don't see any of
getAnnotations calls is called from such kind of method, including isStateful.
Just curious, have you seen such deadlock occurring in Hive? I can undersatnd
if your patch is for the sake of precaution. Nevertheless, I think we should
probably create an utility method for this so that we don't have to repeat the
same code pattern.
> Add workaround for a deadlock issue of Class.getAnnotation()
> -------------------------------------------------------------
>
> Key: HIVE-7409
> URL: https://issues.apache.org/jira/browse/HIVE-7409
> Project: Hive
> Issue Type: Bug
> Reporter: Tsuyoshi OZAWA
> Attachments: HIVE-7409.1.patch
>
>
> [JDK-7122142|https://bugs.openjdk.java.net/browse/JDK-7122142] mentions that
> there is a race condition in getAnnotations. This problem can lead deadlock.
> The fix on JDK will be merged on jdk8, but hive supports jdk6/jdk7 currently.
> Therefore, we should add workaround to avoid the issue.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
