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http://jira.magnolia-cms.com/browse/MAGNOLIA-3671?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ondřej Chytil updated MAGNOLIA-3671:
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Attachment: JCRAuthenticationModule.java
> Anonymous user locked under heavy load.
> ---------------------------------------
>
> Key: MAGNOLIA-3671
> URL: http://jira.magnolia-cms.com/browse/MAGNOLIA-3671
> Project: Magnolia
> Issue Type: Bug
> Components: security
> Affects Versions: 4.4.3
> Reporter: Danilo Ghirardelli
> Assignee: Ondřej Chytil
> Priority: Blocker
> Fix For: 4.4.4
>
> Attachments: JCRAuthenticationModule.java, MgnlUser.java,
> stacktrace.txt
>
>
> I updated to Magnolia 4.4.3, my frontend configuration is clustered, two
> public instances.
> When the load rises, sometimes this exception below happens. This is
> particularly problematic because after the problem the instance is completely
> locked, and shows the magnolia login.
> This seems to be caused by modification done in MAGNOLIA-3557, that stores
> the access count. Doing so for the anonymous user seems to cause concurrent
> modification. I'll do further investigation, but this is a real blocking
> problem for me because my instances are failing often.
> ERROR info.magnolia.cms.security.SystemUserManager 28.04.2011 10:35:53 --
> Failed to login as anonymous user
> javax.security.auth.login.LoginException: java.lang.RuntimeException:
> javax.jcr.InvalidItemStateException:
> 2d78094b-8f7e-4c95-8b1d-22e3dc417c34/{}failedAttempts has been modified
> externally
> at
> info.magnolia.cms.security.MgnlUser.setFailedLoginAttempts(MgnlUser.java:96)
> at
> info.magnolia.jaas.sp.jcr.JCRAuthenticationModule.matchPassword(JCRAuthenticationModule.java:140)
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