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https://issues.apache.org/jira/browse/KYLIN-1174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shao Feng Shi reassigned KYLIN-1174:
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Assignee: (was: liyang)
Labels: newbie (was: )
> ehcache ObjectGraphWalker 1000 object references limit issue
> ------------------------------------------------------------
>
> Key: KYLIN-1174
> URL: https://issues.apache.org/jira/browse/KYLIN-1174
> Project: Kylin
> Issue Type: Bug
> Components: Query Engine
> Affects Versions: v1.1.1
> Reporter: Xiaoyu Wang
> Priority: Minor
> Labels: newbie
>
> When query cache is enable,Kylin will cache the result in ehcache.
> when the result size increase,ehcache will show WARN log like this:
> {noformat}
> [WARN][net.sf.ehcache.pool.sizeof.ObjectGraphWalker.checkMaxDepth(ObjectGraphWalker.java:209)]
> - The configured limit of 1,000 object references was reached while
> attempting to calculate the size of the object graph. Severe performance
> degradation could occur if the sizing operation continues. This can be
> avoided by setting the CacheManger or Cache <sizeOfPolicy> elements
> maxDepthExceededBehavior to "abort" or adding stop points with
> @IgnoreSizeOf annotations. If performance degradation is NOT an issue at
> the configured limit, raise the limit value using the CacheManager or Cache
> <sizeOfPolicy> elements maxDepth attribute. For more information, see the
> Ehcache configuration documentation.
> {noformat}
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