Cassandra service doesn't start

Question

for some reason i tried to reinstall the cassandra ,

firstlly i tried this to remove cassandra:

sudo apt-get remove cassandra

and after that i removed the cassandra folders on :

/var/lib/cassandra

/var/log/cassandra

/etc/cassandra

using rm -rf command

after reinstalling cassandra 1.2.8 ,the cassandra service doesn't start and

sudo service cassandra start

doesn't work ,

what can i do to resolve this problem?

thanks in advance,

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java version = 1.6.0_27

os = ubuntu 12.04

Answer 1

i tried to purge a cassandra instead remove and installing again so it works now