In my case, after installing cassandra, as soon as the server is started it hangs on it own (totally unresponsive).
It had openJDK-6's jdk & jre implementations. On Sat, Feb 18, 2012 at 10:30 PM, Guy Incognito <dnd1...@gmail.com> wrote: > perhaps entirely unrelated, but somebody was asking about lockups on EC2 > yesterday and found: http://wiki.apache.org/cassandra/FAQ#ubuntu_hangs > > > On 18/02/2012 14:58, Aditya Gupta wrote: > > Am I installing it the right way ? While installing I didn't verify the > signatures using public key. > > On Sat, Feb 18, 2012 at 8:21 PM, Aditya Gupta <ady...@gmail.com> wrote: > >> No data at all. just a fresh installation >> >> >> On Sat, Feb 18, 2012 at 6:57 PM, R. Verlangen <ro...@us2.nl> wrote: >> >>> You might want to check your Cassandra logs, they contain important >>> information that might lead you to the actual cause of the problems. >>> >>> 2012/2/18 Aditya Gupta <ady...@gmail.com> >>> >>>> Thanks! But what about the 100% cpu consumption that is causing the >>>> server to hang? >>>> >>>> >>>> On Sat, Feb 18, 2012 at 6:19 PM, Watanabe Maki <watanabe.m...@gmail.com >>>> > wrote: >>>> >>>>> I haven't use the packaged kit, but Cassandra uses half of physical >>>>> memory on your system by default. >>>>> You need to edit cassandra-env.sh to decrease heap size. >>>>> Update MAX_HEAP_SIZE and NEW_HEAP_SIZE and restart. >>>>> >>>>> From iPhone >>>>> >>>>> >>>>> On 2012/02/18, at 20:40, Aditya Gupta <ady...@gmail.com> wrote: >>>>> >>>>> I just installed Cassandra on my ubuntu server by adding the >>>>> following to the sources list: >>>>> >>>>> deb http://www.apache.org/dist/cassandra/debian 10x main >>>>> deb-src http://www.apache.org/dist/cassandra/debian 10x main >>>>> >>>>> >>>>> Soon after install I started getting OOM errors & then the server >>>>> became unresponsive. I added more RAM to the server but found that >>>>> cassandra was consuming 100% CPU & 1GB RAM as soon the server was being >>>>> started. Why is this happening & how can get it to normal conditions ? >>>>> >>>>> >>>> >>> >> > >