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From Harsh J <ha...@cloudera.com>
Subject Re: How to update the timestamp of a file in HDFS
Date Thu, 05 Sep 2013 10:07:20 GMT
Murali,

The touchz creates a zero sized file. It does not allow modifying a
timestamp like Linux's touch command does, which is what the OP seems
to be asking about.

On Thu, Sep 5, 2013 at 12:14 PM, murali adireddy
<murali.adireddy@gmail.com> wrote:
> right usage of command is:
>
> hadoop fs - touchz filename
>
>
> On Thu, Sep 5, 2013 at 12:14 PM, murali adireddy <murali.adireddy@gmail.com>
> wrote:
>>
>> Hi ,
>>
>> Try this "touchz" hadoop command.
>>
>> hadoop -touchz filename
>>
>>
>> Thanks and Regards,
>> Adi Reddy Murali
>>
>>
>> On Thu, Sep 5, 2013 at 11:06 AM, Harsh J <harsh@cloudera.com> wrote:
>>>
>>> There's no shell command (equivalent to Linux's touch) but you can use
>>> the Java API:
>>> http://hadoop.apache.org/docs/current/api/org/apache/hadoop/fs/FileSystem.html#setTimes(org.apache.hadoop.fs.Path,%20long,%20long)
>>>
>>> On Thu, Sep 5, 2013 at 10:58 AM, Ramasubramanian Narayanan
>>> <ramasubramanian.narayanan@gmail.com> wrote:
>>> > Hi,
>>> >
>>> > Can you please help on to update the date & timestamp of a file in
>>> > HDFS.
>>> >
>>> > regards,
>>> > Rams
>>>
>>>
>>>
>>> --
>>> Harsh J
>>
>>
>



-- 
Harsh J

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