Casey,
It sounds like the JVM is behaving. Perhaps turn off mmapped
disk_access to double check that the number you are seeing as resident does not
include the mapped memory?
Aaron
On 10/03/2011, at 6:36 AM, Jonathan Ellis wrote:
> I edited Peter Schuller's reply last time this came
I edited Peter Schuller's reply last time this came up into a FAQ:
http://wiki.apache.org/cassandra/FAQ#mmap
On Wed, Mar 9, 2011 at 11:10 AM, Casey Deccio wrote:
> On Sat, Mar 5, 2011 at 7:37 PM, aaron morton
> wrote:
>>
>> There is some additional memory usage in the JVM beyond that Heap size,
On Sat, Mar 5, 2011 at 7:37 PM, aaron morton wrote:
> There is some additional memory usage in the JVM beyond that Heap size, in
> the permanent generation. 900mb sounds like too much for that, but you can
> check by connecting with JConsole and looking at the memory tab. You can
> also check the
On 03/04/2011 03:51 PM, Casey Deccio wrote:
> Are you saying: that you want a smaller heap and what settings to change
>> to accommodate that, or that you have already set a small heap of x and
>> Cassandra is using significantly more than that?
>>
>
> Based on my observation above, the latter.
>
There is some additional memory usage in the JVM beyond that Heap size, in the
permanent generation. 900mb sounds like too much for that, but you can check by
connecting with JConsole and looking at the memory tab. You can also check the
heap size there to see that it's under the value you've se
On Fri, Mar 4, 2011 at 11:03 AM, Chris Burroughs
wrote:
> What do you mean by "eating up the memory"? Resident set size, low
> memory available to page cache, excessive gc of the jvm's heap?
>
>
jvm's heap is set for half of the physical memory (1982 MB out of 4G), and
jsvc is using 2.9G (73%) of
On 03/04/2011 01:53 PM, Casey Deccio wrote:
> I have a small ring of cassandra nodes that have somewhat limited memory
> capacity for the moment. Cassandra is eating up all the memory on these
> nodes. I'm not sure where to look first in terms of reducing the foot
> print. Keys cached? Compacti
I have a small ring of cassandra nodes that have somewhat limited memory
capacity for the moment. Cassandra is eating up all the memory on these
nodes. I'm not sure where to look first in terms of reducing the foot
print. Keys cached? Compaction?
Any hints would be greatly appreciated.
Regard
