hadoop-mapreduce-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Shengjun Xin <s...@gopivotal.com>
Subject Re: Installing both hadoop1 and haddop2 on single node
Date Tue, 06 May 2014 00:41:29 GMT
According to your description, I think it is still a configuration problem.
Before you run hadoop command, did you check the hadoop version and hadoop
environment variables ? Are they what you want?


On Mon, May 5, 2014 at 11:42 PM, chandra kant <
chandralakshmikant90@gmail.com> wrote:

> I mean , I tried that already. In my .bash_profile , I set up
> HADOOP_HOME, HADOOP_MAPRED_HOME, HADOOP_COMMON_HOME, HADOOP_HDFS_HOME,
> HADOOP_YARN_HOME, HADOOP_CONF_DIR to point to hadoop2 directory. And
> similarly  I have HADOOP_PREFIX and HADOOP_HOME for hadoop-1.
> So , i comment out hadoop-2 specific conf lines in .bash_profile while
> running hadoop-1 and vice-versa.
> And here the problem comes, that when trying to run hadoop-2 , it asks to
> format the  hadoop.tmp.dir set up by hadoop-1.
>
> Just for context- I have done fair amount of work on hadoop-1 and this is
> my first attempt at hadoop-2.
>
> --
> Chandra
>
>
> On Mon, May 5, 2014 at 11:31 AM, chandra kant <
> chandralakshmikant90@gmail.com> wrote:
>
>> Thanks..
>> I set it accordingly..
>>
>>
>> On Monday, 5 May 2014, Shengjun Xin <sxin@gopivotal.com> wrote:
>>
>>> I think you need to set two different environment variables for hadoop1
>>> and hadoop2, such as HADOOP_HOME, HADOOP_CONF_DIR and before you run hadoop
>>> command, you need to make sure the correct environment variables are enable.
>>>
>>>
>>> On Mon, May 5, 2014 at 12:36 PM, chandra kant <
>>> chandralakshmikant90@gmail.com> wrote:
>>>
>>>>
>>>> Hi,
>>>> Is it possible to install both hadoop1 and hadoop2 side  by side on
>>>> single node for development purpose so that I can choose any one of them
by
>>>> just shutting down one and starting another?
>>>> I installed hadoop 1.2.1 and ran air successfully.
>>>> Next, when I try to do "hdfs namenode - format " from hadoop2.2.0 , it
>>>> tries to format the hadoop.tmp.dir set up by hadoop1.2.1 , which is clearly
>>>> not desirable. I set up "dfs.namenode.name.dir" and "dfs.datanode.data.dir"
>>>> in "hdfs-site.xml" to different
>>>> locations.
>>>> But again the same problem...
>>>> Any suggestions....
>>>>
>>>> --
>>>> Chandra
>>>>
>>>>
>>>
>>>
>>> --
>>> Regards
>>> Shengjun
>>>
>>
>


-- 
Regards
Shengjun

Mime
View raw message