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From Tyler Hobbs <ty...@datastax.com>
Subject Re: offheap component
Date Tue, 31 Dec 2013 17:25:42 GMT
On Tue, Dec 31, 2013 at 7:35 AM, Jason Wee <peichieh@gmail.com> wrote:

>
> In Cassandra 1.2 and later, the Bloom filter and compression offset map
> that store this metadata reside off-heap, greatly increasing the capacity
> per node of data that Cassandra can handle efficiently. In Cassandra 2.0,
> the partition summary also resides off-heap.
>
> How do we determine if a cassandra component is on heap or offheap?
>

Solely by the Cassandra version.  Are you asking about a particular
component not mentioned above?


>
> By off-heap, it means that the object is stored *not* in the allocated
> heap in jvm but in native memory?
>

That's correct.


-- 
Tyler Hobbs
DataStax <http://datastax.com/>

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