Hi

Anybody ran hadoop on cygwin for development purpose???
Did you have any problem in running tasktracker?

Thanks

Why ?

The beauty of hadoop is its OS agnostic. What is your native operating
system? I am sure you have a version of JDK and JRE running there.
On Tue, Nov 1, 2011 at 4:53 AM, Masoud <[EMAIL PROTECTED]> wrote:

> Hi
>
> Anybody ran hadoop on cygwin for development purpose???
> Did you have any problem in running tasktracker?
>
> Thanks
>

--
--- Get your facts first, then you can distort them as you please.--

Hi,
I configured hadoop + cygwin on windows 7 as development station, when i
run start-all.sh
all daemons run excepting tasktracker ===>

2011-11-01 14:26:54,463 INFO org.apache.hadoop.mapred.TaskTracker:
Starting tasktracker with owner as cyg_server
2011-11-01 14:26:54,463 INFO org.apache.hadoop.mapred.TaskTracker:
Good
mapred local directories are: /tmp/hadoop-cyg_server/mapred/local
2011-11-01 14:26:54,479 ERROR org.apache.hadoop.mapred.TaskTracker:
Can
*not start task tracker because java.io.IOException: Failed to set
permissions of path: \tmp\hadoop-cyg_server\mapred\local\ttprivate
to 0700*
     at
org.apache.hadoop.fs.FileUtil.checkReturnValue(FileUtil.java:680)
  at org.apache.hadoop.fs.FileUtil.setPermission(FileUtil.java:653)
     at
org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:483)
     at
org.apache.hadoop.fs.RawLocalFileSystem.mkdirs(RawLocalFileSystem.java:318)
     at
org.apache.hadoop.fs.FilterFileSystem.mkdirs(FilterFileSystem.java:183)
     at
org.apache.hadoop.mapred.TaskTracker.initialize(TaskTracker.java:741)
     at
org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1463)
   at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3611)

what do you think????

thanks
BR

On 11/01/2011 08:12 PM, Rita wrote:
> Why ?
>
> The beauty of hadoop is its OS agnostic. What is your native operating
> system? I am sure you have a version of JDK and JRE running there.
>
>
> On Tue, Nov 1, 2011 at 4:53 AM, Masoud<[EMAIL PROTECTED]>  wrote:
>
>> Hi
>>
>> Anybody ran hadoop on cygwin for development purpose???
>> Did you have any problem in running tasktracker?
>>
>> Thanks
>>
>
>

Hi,

Im running hadop 0.20.204 under cygwin 1.7 on Win7, java 1.6.22
i got this error:

2011-11-01 14:26:54,479 ERROR org.apache.hadoop.mapred.TaskTracker:
*Can not start task tracker because java.io.IOException: Failed to set
permissions of path: \tmp\hadoop-cyg_server\mapred\local\ttprivate
to 0700 *
  I tried different ways, i even setted {hadoop.tmp.dir} to the cygwin
home dir too, got same result,
the problem is that JAVA using windows path and file permission to
create HDFS, and i think
under cygwin by simulating Linux behaviour Hadoop can not change the
windows permission to
Linux permission for mentioned folder in error message,
Maybe its a bug and should fixed in source code.,

Any idea please.....

Thanks,
Masoud.

On 11/01/2011 08:12 PM, Rita wrote:
> Why ?
>
> The beauty of hadoop is its OS agnostic. What is your native operating
> system? I am sure you have a version of JDK and JRE running there.
>
>
> On Tue, Nov 1, 2011 at 4:53 AM, Masoud<[EMAIL PROTECTED]>  wrote:
>
>> Hi
>>
>> Anybody ran hadoop on cygwin for development purpose???
>> Did you have any problem in running tasktracker?
>>
>> Thanks
>>
>
>

What are the permissions on \tmp\hadoop-cyg_server\mapred\local\ttprivate?

Which user owns that directory?

Which user are you starting you TaskTracker as?

-Joey

On Wed, Nov 2, 2011 at 9:29 PM, Masoud <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Im running hadop 0.20.204 under cygwin 1.7 on Win7, java 1.6.22
> i got this error:
>
> 2011-11-01 14:26:54,479 ERROR org.apache.hadoop.mapred.TaskTracker:
> *Can not start task tracker because java.io.IOException: Failed to set
> permissions of path: \tmp\hadoop-cyg_server\mapred\local\ttprivate
> to 0700 *
>  I tried different ways, i even setted {hadoop.tmp.dir} to the cygwin home
> dir too, got same result,
> the problem is that JAVA using windows path and file permission to create
> HDFS, and i think
> under cygwin by simulating Linux behaviour Hadoop can not change the windows
> permission to
> Linux permission for mentioned folder in error message,
> Maybe its a bug and should fixed in source code.,
>
> Any idea please.....
>
> Thanks,
> Masoud.
>
> On 11/01/2011 08:12 PM, Rita wrote:
>>
>> Why ?
>>
>> The beauty of hadoop is its OS agnostic. What is your native operating
>> system? I am sure you have a version of JDK and JRE running there.
>>
>>
>> On Tue, Nov 1, 2011 at 4:53 AM, Masoud<[EMAIL PROTECTED]>  wrote:
>>
>>> Hi
>>>
>>> Anybody ran hadoop on cygwin for development purpose???
>>> Did you have any problem in running tasktracker?
>>>
>>> Thanks
>>>
>>
>>
>
>

--
Joseph Echeverria
Cloudera, Inc.
443.305.9434

Dear Joey,

as you know when installing cygwin in new version of windows- for ssh to
localhost- a new user created by cygwin (cyg_server). my main user is
Administrator.
I run namenode -fomat and dfs created in /tmp/Administrator-hadoop/ ~~~
.But tasktracker started by cyg_server and makes again
/tmp/cyg_server-hadoop/~~~
I tried these :

  * I installed cygwin again and by some way i changed the cyg_server to
    Administrator.now tasktracker is ran by Administrator to, but same
    error.
  * i changed hadoop.tmp.dir to the inside of cygwin dir, again same error.

*i think* the problem is related to Java, it makes HFDS based on windows
path and permission. when i checked the hdfs permission under cygwin is
--------- means nothing !!!!
and then by running tasktracker it wana change the permission according
to the Linux permission so it can't.
i dont know what is the solution, ..... im playing with this issue
around 4 days but no result.

BS.
Masoud
On 11/03/2011 08:19 PM, Joey Echeverria wrote:
> What are the permissions on \tmp\hadoop-cyg_server\mapred\local\ttprivate?
>
> Which user owns that directory?
>
> Which user are you starting you TaskTracker as?
>
> -Joey
>
> On Wed, Nov 2, 2011 at 9:29 PM, Masoud<[EMAIL PROTECTED]>  wrote:
>> Hi,
>>
>> Im running hadop 0.20.204 under cygwin 1.7 on Win7, java 1.6.22
>> i got this error:
>>
>> 2011-11-01 14:26:54,479 ERROR org.apache.hadoop.mapred.TaskTracker:
>> *Can not start task tracker because java.io.IOException: Failed to set
>> permissions of path: \tmp\hadoop-cyg_server\mapred\local\ttprivate
>> to 0700 *
>>   I tried different ways, i even setted {hadoop.tmp.dir} to the cygwin home
>> dir too, got same result,
>> the problem is that JAVA using windows path and file permission to create
>> HDFS, and i think
>> under cygwin by simulating Linux behaviour Hadoop can not change the windows
>> permission to
>> Linux permission for mentioned folder in error message,
>> Maybe its a bug and should fixed in source code.,
>>
>> Any idea please.....
>>
>> Thanks,
>> Masoud.
>>
>> On 11/01/2011 08:12 PM, Rita wrote:
>>> Why ?
>>>
>>> The beauty of hadoop is its OS agnostic. What is your native operating
>>> system? I am sure you have a version of JDK and JRE running there.
>>>
>>>
>>> On Tue, Nov 1, 2011 at 4:53 AM, Masoud<[EMAIL PROTECTED]>    wrote:
>>>
>>>> Hi
>>>>
>>>> Anybody ran hadoop on cygwin for development purpose???
>>>> Did you have any problem in running tasktracker?
>>>>
>>>> Thanks
>>>>
>>>
>>
>
>