-Re: Question about the time to execute joins in HBase!
Michael Segel 2013-08-22, 15:46
You kind of have two threads along the same lines.
See my response in your other thread...
On Aug 22, 2013, at 10:41 AM, Pavan Sudheendra <[EMAIL PROTECTED]> wrote:
> I really don't understand this purpose though..
> On Thu, Aug 22, 2013 at 9:09 PM, Kevin O'dell <[EMAIL PROTECTED]>wrote:
>> QQ what is your caching set to?
>> On Aug 22, 2013 11:25 AM, "Pavan Sudheendra" <[EMAIL PROTECTED]> wrote:
>>> Hi all,
>>> A serious question.. I know this isn't one of the best hbase practices
>>> I really want to know..
>>> I am doing a join across 3 table in hbase.. One table contain 19m
>>> one contains 2m and another contains 1m records.
>>> I'm doing this inside the mapper function.. I know this can be done with
>>> pig and hive etc. Leaving the specifics out, how long would experts think
>>> it would take for the mapper to finish aggregating them across a 6 node
>>> cluster.. One is the job tracker and 5 are task trackers.. By the time I
>>> see the map reduce job status for input records reach 600,000 it's taking
>>> an hour.. It can't be right..
>>> Any tips? Please help.
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