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From Thomas Spengler <thomas.speng...@toptarif.de>
Subject Re: virtual memory of all cassandra-nodes is growing extremly since Cassandra 1.1.0
Date Wed, 25 Jul 2012 06:21:26 GMT
No one has any idea?

we tryed

update to 1.1.2
DiskAccessMode standard, indexAccessMode standard
row_cache_size_in_mb: 0
key_cache_size_in_mb: 0


Our next try will to change

SerializingCacheProvider to ConcurrentLinkedHashCacheProvider

any other proposals are welcom

On 07/04/2012 02:13 PM, Thomas Spengler wrote:
> Hi @all,
> 
> since our upgrade form cassandra 1.0.3 to 1.1.0 the virtual memory usage
> of the cassandra-nodes explodes
> 
> our setup is:
> * 5 - centos 5.8 nodes
> * each 4 CPU's and 8 GB RAM
> * each node holds about 100 GB on data
> * each jvm's uses 2GB Ram
> * DiskAccessMode is standard, indexAccessMode is standard
> 
> The memory usage grows upto the whole memory is used.
> 
> Just for information, as we had cassandra 1.0.3, we used
> * DiskAccessMode is standard, indexAccessMode is mmap
> * and the ram-usage was ~4GB
> 
> 
> can anyone help?
> 
> 
> With Regards
> 


-- 
Thomas Spengler
Chief Technology Officer
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