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https://issues.apache.org/jira/browse/KYLIN-998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shaofeng SHI reassigned KYLIN-998:
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Assignee: nichunen (was: Shaofeng SHI)
> Finish the hive intermediate table clean up job in
> org.apache.kylin.job.hadoop.cube.StorageCleanupJob
> -----------------------------------------------------------------------------------------------------
>
> Key: KYLIN-998
> URL: https://issues.apache.org/jira/browse/KYLIN-998
> Project: Kylin
> Issue Type: Improvement
> Components: Storage - HBase
> Affects Versions: v0.7.1, v0.7.2
> Reporter: nichunen
> Assignee: nichunen
> Priority: Major
> Fix For: v1.1
>
> Attachments: KYLIN-998-0.7-staging-v3.patch,
> KYLIN-998-0.7-staging.patch, KYLIN-998-0.8-v3.patch, KYLIN-998-0.8.patch,
> KYLIN-998-UUIDS.patch
>
>
> Current kylin has its last cube building job step named “Garbage Collection”
> to remove the intermediate data in hdfs/hbase/hive. But if the job is
> accidentally stopped like problem in hadoop cluster, bad cube design,
> discarded by user, the data was left un-deleted.
> In such cases, we can run "hbase org.apache.hadoop.util.RunJar
> $KYLIN_HOME/lib/kylin-job-0.8.1-incubating-SNAPSHOT.jar
> org.apache.kylin.job.hadoop.cube.StorageCleanupJob --delete true" to remove
> the data. But the method "cleanUnusedIntermediateHiveTable" is unfinished.
> My first patch is to finish the method, it will remove unused hive tables
> with names begin with "kylin_intermediate_".
> My second patch add some methods to enable deleting unused data with uuids in
> command line, or stored in a file.
> I don't know whether the second patch is useful to you, it's used in our
> kylin server to remove data after one cube is deleted.
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