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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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Xiaoyu Wang updated KYLIN-1174:
-------------------------------
Description:
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}
was:
When query cache is enable,Kylin will cache the result in ehcache.
when the result size incrise,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}
> 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
> Assignee: liyang
> Priority: Minor
> Fix For: v1.2
>
>
> 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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