I saw this. All works fine upto version 1.1.0 the 0.8.x takes 5GB of memory of an 8GB machine the 1.0.x takes between 6 and 7 GB on a 8GB machine and the 1.1.0 takes all
and it is a problem for me it is no solution to wait of the OOM-Killer from the linux kernel and restart the cassandraprocess when my machine has less then 100MB ram available then I have a problem. On 07/25/2012 07:06 PM, Tyler Hobbs wrote: > Are you actually seeing any problems from this? High virtual memory usage > on its own really doesn't mean anything. See > http://wiki.apache.org/cassandra/FAQ#mmap > > On Wed, Jul 25, 2012 at 1:21 AM, Thomas Spengler < > thomas.speng...@toptarif.de> wrote: > >> 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 >> ------------------------------------------------------------------------ >> >> TopTarif Internet GmbH, Pappelallee 78-79, D-10437 Berlin >> Tel.: (030) 2000912 0 | Fax: (030) 2000912 100 >> thomas.speng...@toptarif.de | www.toptarif.de >> >> Amtsgericht Charlottenburg, HRB 113287 B >> Geschäftsführer: Dr. Rainer Brosch, Dr. Carolin Gabor >> ------------------------------------------------------------------------- >> >> >> > > -- Thomas Spengler Chief Technology Officer ------------------------------------------------------------------------ TopTarif Internet GmbH, Pappelallee 78-79, D-10437 Berlin Tel.: (030) 2000912 0 | Fax: (030) 2000912 100 thomas.speng...@toptarif.de | www.toptarif.de Amtsgericht Charlottenburg, HRB 113287 B Geschäftsführer: Dr. Rainer Brosch, Dr. Carolin Gabor -------------------------------------------------------------------------
