Bing Li created HIVE-13850:
------------------------------
Summary: 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
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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