OpsCenter

(8 posts) (4 voices)

• Started 1 year ago by
• Latest reply from nickmbailey
• This topic is not a support question

Tags:

• opscenter

1. 

   Anonymous
   Unregistered

   Hi
   I have installed OpsCenter as "sudo" on ubuntu 11.10 following all

   the steps specified in Installation manual. When I start the

   opscenterd service using
   "sudo service opscenterd start"
   I am able to see the process using
   "ps -ef|grep opscenter"
   root 1024 1 0 11:06 ? 00:00:00 /usr/bin/python2.7

   /usr/share/opscenter/bin/twistd -u 0 -g 0 --pidfile

   /var/run/opscenter/opscenterd.pid -y

   /usr/share/opscenter/bin/start_opscenter.py
   ubuntu 1681 1551 0 14:06 pts/1 00:00:00 grep --color=auto

   opscenter

   But when I try to access the web console through browser hitting

   http://<ip>:8888 I am getting "Connection Refused".

   Can anyone help out please?

   Thanks
   Shankha

   Posted 1 year ago #
2. 

   thobbs
   Administrator

   Hi Shanka,

   By default, the OpsCenter webserver only listens on 127.0.0.1, so if you need to access it from another machine, you need to edit /etc/opscenterd/opscenterd.conf and set the interface option under the [webserver] section to something else, like the ip address of the machine.

   After changing this, restart opscenterd and try again.

   Posted 1 year ago #
3. 

   Anonymous
   Unregistered

   Hi,

   I have installed opscenter in aws instance. There I in /etc/opscenterd/opscenterd.conf i have set the interface as public dns of the instance. Please let me know if I am missing something.

   Regards,
   Shankha

   Posted 1 year ago #
4. 

   thobbs
   Administrator

   Shanka,

   You might try listening on the private IP or 0.0.0.0 instead. Traffic to the public dns should redirect to this.

   Also, make sure that your security rules permit external tcp traffic on port 8888.

   Posted 1 year ago #
5. 

   Anonymous
   Unregistered

   Hi,

   This has worked. It was missing SSL. But currently I am not able to connect to the cassandra cluster using the opscenter dashboard. The cluster has been configured in aws instance. I am using public dns of the child node cluster instance to add the cluster in the opscenter dash board but getting the connection error.

   Regards,
   Shankha

   Posted 1 year ago #
6. 

   nickmbailey
   Key Master

   Shankha,

   This is likely a problem with your ec2 security settings. You will need to allow access to port 9160 on your cassandra servers in order for OpsCenter to be able to connect. Can you verify that port 9160 is open?

   Posted 1 year ago #
7. 

   Abhijit
   Member

   Hi,
   I have SSL installed in my machine as well as rest of all the settings are up to mark. But still i am not able to access the web browser. What else may be the reason?
   This is the netstat report
   Active Internet connections (servers and established)
   Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
   tcp 0 0 192.168.2.212:22 192.168.2.210:41914 ESTABLISHED 1393/sshd: abhi [pr
   tcp 1 0 192.168.2.212:9160 192.168.2.210:49450 CLOSE_WAIT 1845/java
   tcp 0 0 192.168.2.212:22 192.168.2.210:41920 ESTABLISHED 1983/sshd: abhi [pr
   tcp 0 0 192.168.2.212:9160 192.168.2.212:46289 ESTABLISHED 1845/java
   tcp 5 0 192.168.2.212:9160 192.168.2.210:49426 CLOSE_WAIT 1845/java
   tcp 0 0 192.168.2.212:9160 192.168.2.210:49428 ESTABLISHED 1845/java
   tcp 5 0 192.168.2.212:9160 192.168.2.210:49453 CLOSE_WAIT 1845/java
   tcp 1 0 192.168.2.212:40647 91.189.89.144:80 CLOSE_WAIT 1364/ubuntu-geoip-p
   tcp 5 0 192.168.2.212:9160 192.168.2.210:49807 CLOSE_WAIT 1845/java
   tcp 0 0 192.168.2.212:46289 192.168.2.212:9160 ESTABLISHED 2543/python
   tcp 5 0 192.168.2.212:9160 192.168.2.210:49822 CLOSE_WAIT 1845/java
   tcp 0 0 192.168.2.212:22 192.168.2.210:42672 ESTABLISHED 3619/sshd: abhi [pr
   tcp6 0 0 :::22 :::* LISTEN 445/sshd

   Posted 10 months ago #
8. 

   nickmbailey
   Key Master

   Abhijit,

   By default the opscenter web server binds to 127.0.0.1. None of the connections listed there are the opscenter process. You can change the interface the web server binds to in the opscenterd.conf file.

   http://www.datastax.com/docs/opscenter/configure/configure_opscenter_adv

   Posted 10 months ago #

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