Hi,
I removed elasticsearch 1.4.4. using rpm. (It was installed using rpm package)
$rpm -e elasticsearch-1.4.4-1.noarch
Then installed 2.0.0 using rpm again and started it as below.
$rpm -ivh elasticsearch-2.0.0.rpm
$sudo chkconfig --add elasticsearch
$sudo service elasticsearch start
Logs show no error or exceptions
[2015-11-03 12:12:47,903][INFO ][node ] [Atalon] version[2.0.0], pid[4194], build[de54438/2015-10-22T08:09:48Z]
[2015-11-03 12:12:47,916][INFO ][node ] [Atalon] initializing ...
[2015-11-03 12:12:48,315][INFO ][plugins ] [Atalon] loaded [], sites []
[2015-11-03 12:12:48,781][INFO ][env ] [Atalon] using [1] data paths, mounts [[/ (/dev/mapper/vg01-LogVol00)]], net usable_space [37.2gb], net total_space [90.6gb], spins? [possibly], types [ext4]
[2015-11-03 12:12:59,073][INFO ][node ] [Atalon] initialized
[2015-11-03 12:12:59,073][INFO ][node ] [Atalon] starting ...
[2015-11-03 12:12:59,474][INFO ][transport ] [Atalon] publish_address {127.0.0.1:9300}, bound_addresses {127.0.0.1:9300}, {[::1]:9300}
[2015-11-03 12:12:59,567][INFO ][discovery ] [Atalon] elasticsearch/RNomvPO4TyyGpRdInlKZ7A
[2015-11-03 12:13:02,804][INFO ][cluster.service ] [Atalon] new_master {Atalon}{RNomvPO4TyyGpRdInlKZ7A}{127.0.0.1}{127.0.0.1:9300}, reason: zen-disco-join(elected_as_master, [0] joins received)
[2015-11-03 12:13:02,931][INFO ][gateway ] [Atalon] recovered [0] indices into cluster_state
[2015-11-03 12:13:02,952][INFO ][http ] [Atalon] publish_address {127.0.0.1:9200}, bound_addresses {127.0.0.1:9200}, {[::1]:9200}
[2015-11-03 12:13:02,953][INFO ][node ] [Atalon] started
However, the curl command gives no response from elasticsearch.
curl -XGET http://localhost:9200
Network Error
Network Error (dns_unresolved_hostname)
Your requested host "localhost" could not be resolved by DNS.
For assistance, contact your network support team.
When used
curl -XGET http://127.0.0.1:9200
I get
Redirection
Redirect