[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3195) session.clear() is not effective when use_query_cache is true
Les Hazlewood (JIRA)
noreply at atlassian.com
Tue Jun 10 10:02:33 EDT 2008
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_30380 ]
Les Hazlewood commented on HHH-3195:
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Please vote for this issue if you wish it to be a priority!
> session.clear() is not effective when use_query_cache is true
> -------------------------------------------------------------
>
> Key: HHH-3195
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3195
> Project: Hibernate3
> Issue Type: Bug
> Affects Versions: 3.2.6
> Environment: 3.2.6.ga, MySQL5
> Reporter: James Berry
>
> As discussed in detail in http://forum.hibernate.org/viewtopic.php?t=944918, performing many inserts while use_query_cache is enabled will eventually cause an out of memory condition, even if the session is periodically flushed and cleared. That forum thread describes a potential root cause for this problem. Nobody from the Hibernate team has responded regarding the forum thread, even though it's been alive for three years now!
> Note that an answer to "disable the query cache" is not a good solution to the problem, as we need the query cache elsewhere. If it were possible to disable the query cache for a particular session, that would be fine, but I see no way do that.
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