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https://issues.apache.org/jira/browse/HIVE-13850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bing Li updated HIVE-13850:
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Affects Version/s: 1.2.1
> File name conflict when have multiple INSERT INTO queries running in parallel
> -----------------------------------------------------------------------------
>
> Key: HIVE-13850
> URL: https://issues.apache.org/jira/browse/HIVE-13850
> Project: Hive
> Issue Type: Bug
> Affects Versions: 1.2.1
> Reporter: Bing Li
> Assignee: Bing Li
>
> We have an application which connect to HiveServer2 via JDBC.
> In the application, it executes "INSERT INTO" query to the same table.
> If there are a lot of users running the application at the same time. Some of
> the INSERT could fail.
> In hive log,
> org.apache.hadoop.hive.ql.metadata.HiveException: copyFiles: error
> while moving files!!! Cannot move hdfs://node:8020/apps/hive/warehouse/met
>
> adata.db/scalding_stats/.hive-staging_hive_2016-05-10_18-46-
> 23_642_2056172497900766879-3321/-ext-10000/000000_0 to
> hdfs://node:8020/apps/hive
> /warehouse/metadata.db/scalding_stats/000000_0_copy_9014
> at org.apache.hadoop.hive.ql.metadata.Hive.copyFiles(Hive.java:
> 2719)
> at org.apache.hadoop.hive.ql.metadata.Hive.loadTable(Hive.java:
> 1645)
>
> In hadoop log,
> WARN hdfs.StateChange (FSDirRenameOp.java:
> unprotectedRenameTo(174)) - DIR* FSDirectory.unprotectedRenameTo:
> failed to rename /apps/hive/warehouse/metadata.db/scalding_stats/.hive-
> staging_hive_2016-05-10_18-46-23_642_2056172497900766879-3321/-ext-
> 10000/000000_0 to /apps/hive/warehouse/metadata.
> db/scalding_stats/000000_0_copy_9014 because destination exists
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