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https://issues.apache.org/jira/browse/HBASE-12533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14218475#comment-14218475
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Andrejs Dubovskis commented on HBASE-12533:
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[~jeffreyz] Few samples of folder names
{code}
drwxrwxrwx - hbase supergroup 0 2014-11-18 06:32
/tmp/hbase-staging/catalyst__prod_cases1031__11v1ukqbar2ifiseq1godtfo5roglkd0eu1dslnvolt6ntq3oiq14o7i8ecijkfo
drwxrwxrwx - hbase supergroup 0 2014-11-17 23:32
/tmp/hbase-staging/catalyst__prod_cases1031__120n26ihe744fol9ci6t2cfi5fj6ubliofha9do78sgfc37m74rndeosk9qptof6
{code}
Folder name constructed from
# username (catalyst)
# namespace (prod)
# table name (cases1031)
# randomly generated string
> staging directories are not deleted after secure bulk load
> ----------------------------------------------------------
>
> Key: HBASE-12533
> URL: https://issues.apache.org/jira/browse/HBASE-12533
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.98.6
> Environment: CDH5.2 + Kerberos
> Reporter: Andrejs Dubovskis
>
> We using secure bulk load heavily in our environment. And it was working with
> no problem during some time. But last week I found that clients hangs while
> calling *doBulkLoad*
> After some investigation I found that HDFS keeps more than 1,000,000
> directories in /tmp/hbase-staging directory.
> When directory's content was purged the load process runs successfully.
> According the [hbase
> book|http://hbase.apache.org/book/ch08s03.html#hbase.secure.bulkload]
> {code}
> HBase manages creation and deletion of this directory.
> {code}
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