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https://issues.apache.org/jira/browse/CARBONDATA-2506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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xuchuanyin closed CARBONDATA-2506.
----------------------------------
Resolution: Duplicate
> Tests failed occasionally with ConcurrentModificationException
> --------------------------------------------------------------
>
> Key: CARBONDATA-2506
> URL: https://issues.apache.org/jira/browse/CARBONDATA-2506
> Project: CarbonData
> Issue Type: Bug
> Reporter: xuchuanyin
> Assignee: xuchuanyin
> Priority: Major
> Time Spent: 20m
> Remaining Estimate: 0h
>
> ```
> java.util.ConcurrentModificationException at
> java.util.HashMap$HashIterator.nextNode(HashMap.java:1442) at
> java.util.HashMap$KeyIterator.next(HashMap.java:1466) at
> java.util.AbstractCollection.toArray(AbstractCollection.java:196) at
> org.apache.carbondata.core.indexstore.blockletindex.BlockletDataMapFactory.clear(BlockletDataMapFactory.java:284)
> at
> org.apache.carbondata.core.datamap.DataMapStoreManager.clearDataMaps(DataMapStoreManager.java:423)
> at
> org.apache.carbondata.core.datamap.DistributableDataMapFormat$1.initialize(DistributableDataMapFormat.java:123)
> ```
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