start in first time and shutdown CB failed when use fake hostname instead of IP: ** System running to use fully qualified hostnames ** ** Hostname H_N is illegal **

build 140

steps according to http://www.couchbase.com/docs/couchbase-manual-2.0/couchbase-bestpractice-cloud-ip.html:
1. node 10.3.121.117 with undefined domain name hostname: localhost.localdomain
2. stop cb:
[root@localhost ~]# sudo /etc/init.d/couchbase-server stop
Stopping couchbase-server
=INFO REPORT==== 23-Jan-2013::04:34:58 ===
Initiated server shutdown** at node ns_1@127.0.0.1 **

=INFO REPORT==== 23-Jan-2013::04:35:04 ===
Stopped ns_server application** at node ns_1@127.0.0.1 **

[root@localhost ~]# cat /opt/couchbase/VERSION.txt
2.0.1-140-rel

3. Edited the start() function in the script located at /opt/couchbase/bin/couchbase-server
Under the line that reads:
-run ns_bootstrap – \
Added a new line that reads:
-name ns_1@hostname5 \

[root@localhost ~]# sudo vim /opt/couchbase/bin/couchbase-server

4. added /opt/couchbase/var/lib/couchbase/ip
[root@localhost ~]# vim /opt/couchbase/var/lib/couchbase/ip
[root@localhost ~]# cat /opt/couchbase/var/lib/couchbase/ip
hostname5

5. removed files
[root@localhost ~]# rm -rf /opt/couchbase/var/lib/couchbase/data/*
[root@localhost ~]# rm -rf /opt/couchbase/var/lib/couchbase/mnesia/*
[root@localhost ~]# rm -rf /opt/couchbase/var/lib/couchbase/config/config.dat

6.start cb
[root@localhost ~]# sudo /etc/init.d/couchbase-server start
Starting couchbase-server [ OK ]

7. added '127.0.0.1 hostname5' in /etc/hosts
[root@localhost ~]# vim /etc/hosts

RESULT: couchbase was not started correctly. it was started only when I added 'hostname5' in /etc/hosts
[root@localhost ~]# ps -ef| grep couchbase
500 22281 1 0 05:01 ? 00:00:00 /opt/couchbase/lib/erlang/erts-5.8.5/bin/epmd -daemon
root 22335 22129 0 05:03 pts/1 00:00:00 grep couchbase

8.kill erl
[root@localhost ~]# kill -9 22281

9. start cb in second time:
[root@localhost ~]# sudo /etc/init.d/couchbase-server start
Starting couchbase-server [ OK ]
[root@localhost ~]# ps -ef| grep couchbase
500 22355 1 0 05:03 ? 00:00:00 /opt/couchbase/lib/erlang/erts-5.8.5/bin/epmd -daemon
500 22373 1 46 05:04 ? 00:00:25 /opt/couchbase/lib/erlang/erts-5.8.5/bin/beam.smp -A 16 -sbt u -P 327680 -K true -MMmcs 30 – -root /opt/couchbase/lib/erlang -progname erl – -home /home/couchbase – -smp enable -setcookie nocookie -kernel inet_dist_listen_min 21100 inet_dist_listen_max 21299 error_logger false -sasl sasl_error_logger false -noshell -noinput -noshell -noinput -run ns_bootstrap – -name ns_1@hostname5 -couch_ini /opt/couchbase/etc/couchdb/default.ini /opt/couchbase/etc/couchdb/default.d/capi.ini /opt/couchbase/etc/couchdb/default.d/geocouch.ini /opt/couchbase/etc/couchdb/local.ini -ns_server config_path "/opt/couchbase/etc/couchbase/static_config" -ns_server pidfile "/opt/couchbase/var/lib/couchbase/couchbase-server.pid" -ns_server nodefile "/opt/couchbase/var/lib/couchbase/couchbase-server.node" -ns_server cookiefile "/opt/couchbase/var/lib/couchbase/couchbase-server.cookie" -ns_server enable_mlockall true
500 22399 22373 0 05:04 ? 00:00:00 /opt/couchbase/lib/erlang/lib/os_mon-2.2.7/priv/bin/memsup
500 22401 22373 0 05:04 ? 00:00:00 /opt/couchbase/lib/erlang/lib/os_mon-2.2.7/priv/bin/cpu_sup
500 22402 22373 0 05:04 ? 00:00:00 /opt/couchbase/lib/erlang/lib/ssl-4.1.6/priv/bin/ssl_esock
500 22425 22373 10 05:04 ? 00:00:02 /opt/couchbase/bin/memcached -X /opt/couchbase/lib/memcached/stdin_term_handler.so -X /opt/couchbase/lib/memcached/file_logger.so,cyclesize=104857600;sleeptime=19;filename=/opt/couchbase/var/lib/couchbase/logs/memcached.log -l 0.0.0.0:11210,0.0.0.0:11209:1000 -p 11210 -E /opt/couchbase/lib/memcached/bucket_engine.so -B binary -r -c 10000 -e admin=_admin;default_bucket_name=default;auto_create=false
500 22448 22373 0 05:04 ? 00:00:00 /opt/couchbase/bin/moxi -Z port_listen=11211,default_bucket_name=default,downstream_max=1024,downstream_conn_max=4,connect_max_errors=5,connect_retry_interval=30000,connect_timeout=400,auth_timeout=100,cycle=200,downstream_conn_queue_timeout=200,downstream_timeout=5000,wait_queue_timeout=200 -z url=http://127.0.0.1:8091/pools/default/saslBucketsStreaming -p 0 -Y y -O stderr
root 22457 22129 0 05:04 pts/1 00:00:00 grep couchbase

OBSERVATION: now it's fine, host name is set correctly in erlang command start (-name ns_1@hostname5)

10. try to stop cb
[root@localhost ~]# sudo /etc/init.d/couchbase-server stop
Stopping couchbase-serverNOTE: shutdown failed

=ERROR REPORT==== 23-Jan-2013::05:05:02 ===

• • System running to use fully qualified hostnames **
  • Hostname hostname5 is illegal **