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From 祝海通 <zhuhait...@gmail.com>
Subject Re: sstable count=0, why nodetool ring is not 0
Date Thu, 08 Dec 2011 02:17:37 GMT
I count the disk usage. I found that from nodetool information, space used
(live) is about the nodetool ring info.
space used(total) is about the disk usage.

thx


On Thu, Dec 8, 2011 at 9:53 AM, 祝海通 <zhuhaitong@gmail.com> wrote:

>
> We are testing the the performance of Cassandra for Big Data. Now I also
> have the problem. From nodetool cfstats, the space used (live) is 7 times
> than the Space used (total). Why?
>
> thx
>
>
>
> On Wed, Dec 7, 2011 at 5:58 PM, Dotan N. <dipidi@gmail.com> wrote:
>
>> Hi,
>> What kind of process did you use for loading 400GB of data?
>>
>> Thanks
>> --
>> Dotan, @jondot <http://twitter.com/jondot>
>>
>>
>>
>> On Wed, Dec 7, 2011 at 5:57 AM, 祝海通 <zhuhaitong@gmail.com> wrote:
>>
>>> hi,all
>>>
>>> We are using Cassandra 1.0.2. I am testing the TTL with loading 400G.
>>> When all the data are expired, I waited for some hours.
>>> Later, the nodetool ring is still have 90GB. So I made a major
>>> compaction.
>>> Then there are 30GB from the nodetool ring. After I saw the file
>>> system,I found there are zero sstable.
>>> I don't know where comes the 30GB?
>>>
>>> Best Regards
>>>
>>
>>
>

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