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https://issues.apache.org/jira/browse/OOZIE-2393?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15552287#comment-15552287
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Peter Cseh commented on OOZIE-2393:
-----------------------------------
[~abhishekbafna], thank you for adding documentation and even more test cases!
+1 non-binding
> Allow table drop in hcat prepare
> --------------------------------
>
> Key: OOZIE-2393
> URL: https://issues.apache.org/jira/browse/OOZIE-2393
> Project: Oozie
> Issue Type: Improvement
> Components: core
> Affects Versions: 4.1.0, 4.2.0
> Reporter: Muhammad Ehsan ul Haque
> Assignee: Abhishek Bafna
> Priority: Minor
> Labels: hcatalog, prepare
> Fix For: 5.0.0
>
> Attachments: OOZIE-2393-00.patch, OOZIE-2393-01.patch
>
>
> The hcat prepare only allows to drop partitions. It would be nice to also
> allow dropping of table, depending on the URL. The current format of the URL
> is
> {code}hcat://[metastore server]:[port]/[database name]/[table
> name]/[partkey1]=[value];[partkey2]=[value]{code}
> where at least one partition must be provided, otherwise the prepare step
> fails with the fololwing exception.
> {code}
> Starting the execution of prepare actions
> Creating HCatClient for user=ehsan.haq (auth:SIMPLE) and
> server=thrift://datavault-prod-app2.internal.machines:9083
> Prepare execution in the Launcher Mapper has failed
> Failing Oozie Launcher, Main class
> [org.apache.oozie.action.hadoop.SqoopMain], exception invoking main(), Error
> trying to drop
> hcat://datavault-prod-app2.internal.machines:9083/test_rdbms_import_2015110600/test
> org.apache.oozie.action.hadoop.LauncherException: Error trying to drop
> hcat://datavault-prod-app2.internal.machines:9083/test_rdbms_import_2015110600/test
> at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:178)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:450)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
> Caused by: org.apache.oozie.action.hadoop.LauncherException: Error trying to
> drop
> hcat://datavault-prod-app2.internal.machines:9083/test_rdbms_import_2015110600/test
> at
> org.apache.oozie.action.hadoop.HCatLauncherURIHandler.delete(HCatLauncherURIHandler.java:64)
> at
> org.apache.oozie.action.hadoop.PrepareActionsDriver.execute(PrepareActionsDriver.java:89)
> at
> org.apache.oozie.action.hadoop.PrepareActionsDriver.doOperations(PrepareActionsDriver.java:67)
> at
> org.apache.oozie.action.hadoop.LauncherMapper.executePrepare(LauncherMapper.java:446)
> at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:174)
> ... 8 more
> Caused by: java.net.URISyntaxException: URI path is not in expected format:
> hcat://datavault-prod-app2.internal.machines:9083/test_rdbms_import_2015110600/test
> at org.apache.oozie.util.HCatURI.parse(HCatURI.java:66)
> at org.apache.oozie.util.HCatURI.<init>(HCatURI.java:52)
> at org.apache.oozie.util.HCatURI.<init>(HCatURI.java:48)
> at
> org.apache.oozie.action.hadoop.HCatLauncherURIHandler.delete(HCatLauncherURIHandler.java:52)
> ... 12 more
> Oozie Launcher failed, finishing Hadoop job gracefully
> {code}
> h3. Suggestion
> In the URL if the partition is not provided then it should delete the entire
> table.
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