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From Daisy Zhou <da...@wibidata.com>
Subject Re: Bulk-loading HFiles after table split (on ACL enabled cluster)
Date Wed, 17 Sep 2014 19:58:40 GMT
Thanks for the response, Matteo.

My HBase is not a secure HBase, I only have ACL enabled on HDFS.  I did try
adding the SecureBulkLoadEndpoint coprocessor to my HBase cluster, but I
think it does something different, and it didn't help.

I normally have to chmod -R a+rwx the hfile directory in order to bulk-load
them, because the hbase user and current user both need write access.  Then
the newly created split HFiles do not have those same permissions, unless I
chmod them specifically.  Am I doing something wrong?

Daisy

On Tue, Sep 16, 2014 at 2:28 PM, Matteo Bertozzi <theo.bertozzi@gmail.com>
wrote:

> are you using the SecureBulkLoadEndpoint? that should take care of
> permissions
> http://hbase.apache.org/book/hbase.secure.bulkload.html
>
> Matteo
>
>
> On Tue, Sep 16, 2014 at 2:26 PM, Daisy Zhou <daisy@wibidata.com> wrote:
>
> > Hi,
> >
> > I can't find mention of this issue on the Jira.  Is it known?  I think
> that
> > if a split of the HFiles is required, LoadIncrementalHFiles should create
> > the new HFiles with the correct permissions to be bulk-loaded. Currently
> it
> > just hangs because the permissions are wrong.
> >
> > Here is how I reproduce my issue:
> >
> > On a cluster with ACL enabled, I generate HFiles for a bulk-load, then
> > *force a table split*, and then attempt to bulk-load the HFiles.  The
> > bulk-load hangs (similar to when the hfiles' directory is not chown'ed
> > properly):
> >
> > 14/09/15 15:44:41 INFO
> > org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles: Trying to
> > load
> >
> hfile=hdfs://bento:8020/user/daisy/kiji-mr-tutorial/hfile-output/part-r-00000.hfile/B/00000
> > first=\x00fs\xC0song-32\x00 last=\xFEI\x99~song-44\x0014/09/15
> > 15:44:41 INFO org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles:
> > HFile at
> >
> hdfs://bento:8020/user/daisy/kiji-mr-tutorial/hfile-output/part-r-00000.hfile/B/00000
> > no longer fits inside a single region. Splitting...14/09/15 15:44:42
> > INFO org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles:
> > Successfully split into new HFiles
> >
> >
> hdfs://bento:8020/user/daisy/kiji-mr-tutorial/hfile-output/part-r-00000.hfile/B/_tmp/kiji.kiji_music.table.songs,1.bottom
> > and
> >
> hdfs://bento:8020/user/daisy/kiji-mr-tutorial/hfile-output/part-r-00000.hfile/B/_tmp/kiji.kiji_music.table.songs,1.top14/09/15
> > 15:44:42 INFO org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles:
> > Split occured while grouping HFiles, retry attempt 1 with 2 files
> > remaining to group or split
> > 14/09/15 15:44:42 INFO
> > org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles: Trying to
> > load
> >
> hfile=hdfs://bento:8020/user/daisy/kiji-mr-tutorial/hfile-output/part-r-00000.hfile/B/_tmp/kiji.kiji_music.table.songs,1.top
> > first=c\xA8\x0D\x81song-9\x00 last=\xFEI\x99~song-44\x0014/09/15
> > 15:44:42 INFO org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles:
> > Trying to load
> >
> hfile=hdfs://bento:8020/user/daisy/kiji-mr-tutorial/hfile-output/part-r-00000.hfile/B/_tmp/kiji.kiji_music.table.songs,1.bottom
> > first=\x00fs\xC0song-32\x00 last=^49\xDEsong-13\x00
> >
> >
> > If I chmod -R 777 the directory and try again, the bulk load completes
> > successfully.
> >
> >
> > Daisy
> >
>

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