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From Cyril Scetbon <cyril.scet...@free.fr>
Subject Re: How to free space
Date Wed, 27 Jun 2012 21:17:02 GMT
It seems that reducing the number of versions kept by column family enable the freeing of space.

Regards

Cyril SCETBON

On Jun 27, 2012, at 8:03 PM, Amandeep Khurana wrote:

> Cyril,
> 
> Did you notice the space on the hbase directory in HDFS change at all? It
> takes time to complete the major compactions (and it depends on the size of
> the tables). Deleting column families will just delete those HFiles. That
> should definitely free up space.
> 
> -Amandeep
> 
> On Wed, Jun 27, 2012 at 4:50 AM, Cyril Scetbon <cyril.scetbon@free.fr>wrote:
> 
>> Hi,
>> 
>> I've a table with 4 column families. I've deleted the data in a column
>> family with an alter command and tried a major_compact on the table but I
>> can't free space :( it's still filled at 80%. I've just changed the number
>> of versions on the column family and tried another major compact. Is it the
>> good way ? is there another thing to do ?
>> 
>> thanks
>> 
>> 
>> Cyril SCETBON
>> 
>> 


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