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https://issues.apache.org/jira/browse/HIVE-1996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13103155#comment-13103155
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He Yongqiang commented on HIVE-1996:
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For this, we need to make the rename optional, and by default disabled. If
disabled rename, should throw an error to user.
> "LOAD DATA INPATH" fails when the table already contains a file of the same
> name
> --------------------------------------------------------------------------------
>
> Key: HIVE-1996
> URL: https://issues.apache.org/jira/browse/HIVE-1996
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.7.0
> Reporter: Kirk True
> Assignee: Chinna Rao Lalam
> Attachments: HIVE-1996.1.Patch, HIVE-1996.Patch
>
>
> Steps:
> 1. From the command line copy the kv2.txt data file into the current user's
> HDFS directory:
> {{$ hadoop fs -copyFromLocal /path/to/hive/sources/data/files/kv2.txt
> kv2.txt}}
> 2. In Hive, create the table:
> {{create table tst_src1 (key_ int, value_ string);}}
> 3. Load the data into the table from HDFS:
> {{load data inpath './kv2.txt' into table tst_src1;}}
> 4. Repeat step 1
> 5. Repeat step 3
> Expected:
> To have kv2.txt renamed in HDFS and then copied to the destination as per
> HIVE-307.
> Actual:
> File is renamed, but {{Hive.copyFiles}} doesn't "see" the change in {{srcs}}
> as it continues to use the same array elements (with the un-renamed, old file
> names). It crashes with this error:
> {noformat}
> java.lang.NullPointerException
> at org.apache.hadoop.hive.ql.metadata.Hive.copyFiles(Hive.java:1725)
> at org.apache.hadoop.hive.ql.metadata.Table.copyFiles(Table.java:541)
> at org.apache.hadoop.hive.ql.metadata.Hive.loadTable(Hive.java:1173)
> at org.apache.hadoop.hive.ql.exec.MoveTask.execute(MoveTask.java:197)
> at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:130)
> at
> org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:57)
> at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1060)
> at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:897)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:745)
> at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:164)
> at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:241)
> at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:456)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> {noformat}
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