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https://issues.apache.org/jira/browse/KYLIN-5296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17706240#comment-17706240
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ASF GitHub Bot commented on KYLIN-5296:
---------------------------------------
hit-lacus closed pull request #2021: KYLIN-5296 Fixed
ConcurrentModificationException called by Aclrecord init() method with
concurrent query
URL: https://github.com/apache/kylin/pull/2021
> ConcurrentModificationException called by Aclrecord.init() method during load
> test with concurrent query
> --------------------------------------------------------------------------------------------------------
>
> Key: KYLIN-5296
> URL: https://issues.apache.org/jira/browse/KYLIN-5296
> Project: Kylin
> Issue Type: Bug
> Reporter: Zhenning Zhang
> Assignee: Zhenning Zhang
> Priority: Major
> Fix For: 5.0-alpha
>
>
> For each AclRecord instance, init() method should be called only once.
> or it will cause ConcurrentModificationException during sort of aceImp
> error log for load test with concurrent query:
> {code:java}
> {"code":"999","data":null,"msg":"KE-000000001(UNKNOWN ERRORCODE):
> null","stacktrace":"java.util.ConcurrentModificationException\n\tat
> java.util.ArrayList.sort(ArrayList.java:1466)\n\tat
> org.apache.kylin.rest.security.AclRecord.init(AclRecord.java:129)\n\tat
> org.apache.kylin.rest.security.AclManager.readAclsById(AclManager.java:159)\n\tat
>
> org.apache.kylin.rest.security.AclManager.readAclById(AclManager.java:143)\n\tat
>
> org.apache.kylin.rest.service.AclService.readAclById(AclService.java:74)\n\tat
>
> org.apache.kylin.rest.service.AclService.readAclById(AclService.java:79)\n\tat
>
> org.springframework.security.acls.AclPermissionEvaluator.checkPermission(AclPermissionEvaluator.java:98)\n\tat
>
> org.springframework.security.acls.AclPermissionEvaluator.hasPermission(AclPermissionEvaluator.java:81)\n\tat
>
> org.apache.kylin.rest.security.KylinAclPermissionEvaluator.hasPermission(KylinAclPermissionEvaluator.java:80)\n\tat
>
> org.springframework.security.access.expression.SecurityExpressionRoot.hasPermission(SecurityExpressionRoot.java:195)\n\t
> {code}
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