Rahul Bhattacharjee
Date: Tue, 16 Apr 2013 21:13:54
To:
Reply-To: user@hadoop.apache.org
Subject: Re: VM reuse!
Agreed.
Not sure about the behavour of JT.Consider the situation.
N1 has split 1 and split 2 of a file and there are two map slots.N2 has
split 2 and it also has one mapper slot. I thin
scheduling two mappers in N1 and no task in N2.
I do not think the JT considers whether VM reuse is enabled.However it can
consider this into account along with data locality aspect. When a job
writer asked for VM reuse then its would not be entirely wrong to assume
that there might be certain
sks.
>>
>>
>>
>>
>> On Tue, Apr 16, 2013 at 2:04 PM, Rahul Bhattacharjee <
>> rahul.rec@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I have a question related to VM reuse in Hadoop.I now understand the
>>> purpose of VM reuse , b
>
>
>
>
> On Tue, Apr 16, 2013 at 2:04 PM, Rahul Bhattacharjee <
> rahul.rec@gmail.com> wrote:
>
>> Hi,
>>
>> I have a question related to VM reuse in Hadoop.I now understand the
>> purpose of VM reuse , but I am wondering how is it useful.
>
.
On Tue, Apr 16, 2013 at 2:04 PM, Rahul Bhattacharjee <
rahul.rec@gmail.com> wrote:
> Hi,
>
> I have a question related to VM reuse in Hadoop.I now understand the
> purpose of VM reuse , but I am wondering how is it useful.
>
> Example. for VM reuse to be effectiv
Hi,
I have a question related to VM reuse in Hadoop.I now understand the
purpose of VM reuse , but I am wondering how is it useful.
Example. for VM reuse to be effective or kicked in , we need more than one
mapper task to be submitted to a single node (for the same job).Hadoop
would consider
