Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Plain View
MapReduce, mail # user - Re: C++ example for hadoop-2.2.0


+
Salman Toor 2013-11-04, 10:44
+
Amr Shahin 2013-11-04, 12:38
+
Amr Shahin 2013-11-04, 12:54
+
REYANE OUKPEDJO 2013-11-04, 13:19
+
Salman Toor 2013-11-04, 13:29
Copy link to this message
-
Re: C++ example for hadoop-2.2.0
Salman Toor 2013-11-04, 13:20
Hi,

Ok so 2.x is not a new version its another branch. Good to know! Actually 32bit will be difficult as the code I got have already some dependencies on 64 bit.

Otherwise I will continue with 1.x version. Can you suggest some version with 1.x series which is stable and work on the cluster environment? especially with C++ ...

Regards..
Salman.  

Salman Toor, PhD
[EMAIL PROTECTED]

On Nov 4, 2013, at 1:54 PM, Amr Shahin wrote:

> Well, the 2 series isn't exactly the "next version". It's a continuation of branch .2.
> Also, the error message from the gcc indicates that the library you're trying to link to isn't compatible which made me suspicious. check the documentation to see if hadoop has 64 libraries, or otherwise compile against the 32 ones
>
>
> On Mon, Nov 4, 2013 at 4:51 PM, Salman Toor <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Thanks for your answer!
>
> But are you sure about it? Actually Hadoop version 1.2 have both 32 and 64 bit libraries so I believe the the next version should have both... But I am not sure just a random guess :-(
>
> Regards..
> Salman.
>
> Salman Toor, PhD
> [EMAIL PROTECTED]
>
>
>
> On Nov 4, 2013, at 1:38 PM, Amr Shahin wrote:
>
>> I believe hadoop isn't compatible with 64 architecture. Try installing the 32 libraries and compile against them.
>> This error (skipping incompatible /home/sztoor/hadoop-2.2.0/lib/native/libhadooppipes.a when searching -lhadooppipes) indicates so
>>
>>
>> On Mon, Nov 4, 2013 at 2:44 PM, Salman Toor <[EMAIL PROTECTED]> wrote:
>> Hi,
>>
>> Can someone give a pointer?
>>
>>
>> Thanks in advance.
>>
>> Regards..
>> Salman.
>>
>>
>> Salman Toor, PhD
>> [EMAIL PROTECTED]
>>
>>
>>
>> On Nov 3, 2013, at 11:31 PM, Salman Toor wrote:
>>
>>> Hi,
>>>
>>> I am quite new to the Hadoop world, previously was running hadoop-1.2.0 stable version on my small cluster and encountered some strange problems like the local path to the mapper  file didn't copy to the hdfs .... It works fine on the single node setup but on multiple node simple word-count python example didn't work...  I read on the blog that it might be the problem in the version I am using. So I thought to change the version and downloaded the Hadoop 2.2.0. This version has yarn together with many new features that I hope I will learn in the future. Now simple wordcount example works without any problem on the multi-node setup. I am using simple python example.
>>>
>>> Now I would like to compile my C++ code. Since the directory structure together with other things have been changed. I have started to get the following error:
>>>
>>> ----------------
>>> /urs/bin/ld:  skipping incompatible /home/sztoor/hadoop-2.2.0/lib/native/libhadooputils.a when searching -lhadooputils
>>> cannot find -lhadooputils
>>>
>>>  /urs/bin/ld:  skipping incompatible /home/sztoor/hadoop-2.2.0/lib/native/libhadooppipes.a when searching -lhadooppipes
>>> cannot find -lhadooppipes
>>> ------------------
>>>
>>> I have managed to run the c++ example successfully with the 1.2.0 version on single node setup.
>>>
>>> I am having 64bit Ubuntu machine. previously I was using Linux-amd64-64
>>>
>>> Now in new version, "lib" and "include" directories are in the hadoop-2.2.0 directory. No build.xml is available...
>>>
>>> Can someone please give me an example of a makefile based on the version 2.2.0? Or suggest me which version I should go for? Or if there are some prerequisites that I should do before compiling my code?
>>>
>>> Thanks in advance.
>>>
>>> Regards..
>>> Salman.
>>>
>>>
>>>  
>>> Salman Toor, PhD
>>> [EMAIL PROTECTED]
>>>
>>>
>>>
>>
>>
>
>

+
Andre Kelpe 2013-11-04, 13:55
+
Salman Toor 2013-11-04, 14:05
+
jerome 2013-11-05, 20:42
+
Salman Toor 2013-11-06, 16:18