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From: anil gupta <anilgupta84@gmail.com>
Date: Mon, 17 Dec 2012 17:20:36 -0800
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Subject: Re: Roll of hbase.tmp.dir in HBase
To: user@hbase.apache.org
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Hi Stack and Nick,
Thanks for the reply.

@Stack:
I went through the following link
http://hbase.apache.org/book.html#hbase.tmp.dir before posting my query.
hbase.tmp.dir

Temporary directory on the local filesystem. Change this setting to point
to a location more permanent than '/tmp' (The '/tmp' directory is often
cleared on machine restart).

Default: /tmp/hbase-${user.name}

IMHO, the description didn't say about the significance/roll of this
property. Yes, it would be nice if we can add some more details about this
property.

@Nick: I am using HBase 0.92.1, CompactionTool.java is part of HBase 0.96
as per https://issues.apache.org/jira/browse/HBASE-7253.

I have 10 disks on my slave node that will primarily be used for serving
HBase queries(very less MR ). So, i was trying to distribute my disk I/O
load evenly among the disk. Will it be fine if i just dedicate 1 disk for
hadoop.tmp.dir or 1 disk is also a overkill for hbase.tmp.dir.

Thanks,

Anil Gupta


On Mon, Dec 17, 2012 at 3:46 PM, Stack <stack@duboce.net> wrote:

> In refguide we repeat content of hbase-default.xml:
> http://hbase.apache.org/book.html#hbase.tmp.dir
>
> What Nick said plus its used to keep all data when doing standlone hbase.
>
> We should amend doc. to say that you cannot do comma-delimited list?
> St.Ack
>
>
> On Mon, Dec 17, 2012 at 3:19 PM, anil gupta <anilgupta84@gmail.com> wrote:
>
> > Hi All,
> >
> > I am trying to figure out the exact roll of "hbase.tmp.dir" in HBase but
> i
> > could not find any detailed reference on HBase wiki and mailing list
> > archives. Can anybody tell me for which purpose hbase.tmp.dir is used? Is
> > it a comma separated value that can take multiple directories? Any
> > reference document on it would be highly appreciated?
> >
> > --
> > Thanks & Regards,
> > Anil Gupta
> >
>


-- 
Thanks & Regards,
Anil Gupta

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