Couchbase 5.0.1 couldn't listen on port 8091

Couchbase Server
1

After installation of couchbase-server-community-5.0.1-centos6.x86_64.rpm without any errors, and I browse to port 8091 as usual to configure my server, but couldn’t access the web page.
Then I run command

ps -ef | grep couchbase
netstat -antup| grep 8091

and found this

image
image.png1494×312 122 KB

It seems fewer process running than couchbase-server-community-4.x, and Couchbase Server couldn’t listen on port 8091,which is more important.
Things work well with couchbase-server-community-4.x, any bugs with 5.x?
Any help would be appreciated.

2

If the erlang/ns_server process couldn’t listen, there should be more information in the logs that may tell you what’s happening. See the docs for logging details for your platform.

To my knowledge, no known issues in this area.

3

Thanks.
From the files under /opt/couchbase/var/lib/couchbase/logs,
I found some infomations which may help.

./babysitter.log:[ns_server:info,2018-03-22T10:01:04.762+08:00,babysitter_of_ns_1@127.0.0.1:<0.68.0>:ns_port_server:log:223]ns_server<0.68.0

: [os_mon] memory supervisor port (memsup): Erlang has closed
./babysitter.log:ns_server<0.68.0>: [os_mon] cpu supervisor port (cpu_sup): Erlang has closed

./babysitter.log:[ns_server:debug,2018-03-22T10:01:11.070+08:00,babysitter_of_ns_1@127.0.0.1:<0.76.0>:supervisor_cushion:init:39]starting ns
_port_server with delay of 5000

./error.log:[ns_server:error,2018-03-22T10:01:13.996+08:00,ns_1@127.0.0.1:ns_log<0.212.0>:ns_log:handle_cast:209]unable to notify listeners because of b
adarg

./info.log:
[ns_server:warn,2018-03-22T10:01:02.636+08:00,nonode@nohost:<0.88.0>:ns_server:log_pending:32]not overriding parameter error_logger_mf_dir,
which is given from command line
[ns_server:warn,2018-03-22T10:01:02.636+08:00,nonode@nohost:<0.88.0>:ns_server:log_pending:32]not overriding parameter path_config_bindir, w
hich is given from command line
[ns_server:warn,2018-03-22T10:01:02.637+08:00,nonode@nohost:<0.88.0>:ns_server:log_pending:32]not overriding parameter loglevel_default, whi
ch is given from command line
[ns_server:warn,2018-03-22T10:01:02.637+08:00,nonode@nohost:<0.88.0>:ns_server:log_pending:32]not overriding parameter loglevel_couchdb, whi
ch is given from command line
[ns_server:warn,2018-03-22T10:01:02.637+08:00,nonode@nohost:<0.88.0>:ns_server:log_pending:32]not overriding parameter loglevel_ns_server, w
hich is given from command line
[ns_server:warn,2018-03-22T10:01:02.637+08:00,nonode@nohost:<0.88.0>:ns_server:log_pending:32]not overriding parameter loglevel_error_logger
, which is given from command line

But what do these mean?
Could you please give me more help?

4

When I install couchbase-5.0 on another CentOS machine, all things workd well as usual,it is believed that the pervious machine has got something wrong. I will recheck later.
Anyway, thanks a lot.