I started the Cloudera manager successfully but while trying to see the list of files it throws error related to namenode. After that I checked the namenode is started or not , but it says
Unable to connect
Firefox can't establish a connection to the server at quickstart.cloudera:50070.
The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer's network connection. If your computer or network is protected by a firewall
or proxy, make sure that Firefox is permitted to access the Web.
How can I resolve this?
Related
I have setup an Amazon EC2 Ubuntu 16 server for the first time.
With the issued public IPv4 IP address I have ssh'ed into the server and installed a lamp stack.
However when I paste the IP address into my browser I get the following error:
Error
The requested URL could not be retrieved
Error: Access to the web site failed
Why you are seeing this:
The web filter could not display the requested site.
Possible reasons could be:
The web site denied you access, or the web filter received no reply from the site.
Internet connectivity issues might be preventing the website from sending or receiving traffic.
If this problem persists, please ask your administrator to:
Check access to the specific site - the HTTP error code is 504: Gateway Timeout.
From what I've seen online, I should see the default apache webpage from my server at this point.
Can anyone shed some light on this issue?
I have successfully installed hortonworks sandbox in vmware and finally I am getting this screenshot of vmware
However I tried that ipaddress in browser but getting below error .
This site can’t be reached
192.168.247.135 took too long to respond.
Try:
Reloading the page
Checking the connection
Checking the proxy and the firewall
ERR_CONNECTION_TIMED_OUT
To access the Hortornworks Sandbox from putty or browser you have to perform 2 steps in Network setting as below in picture:
Set Adapter 1 attached to NAT
Set Adapter 2 attached to Host-only Adapter
Please refer the steps from the pictures above and it will work because same setting is working for me.
We have 5 node hortonworks cluster with ambari monitors installed in all nodes and metrics collector installed in master node.
I am getting Connection failed: [Errno 111] Connection refused to 0.0.0.0:6188
PFA for error.
https://drive.google.com/file/d/0B85rPUe3-QPXbXJSRzJmdUwwQU0/view?usp=sharing
I followed the below document and tried removing the service and added it.
https://cwiki.apache.org/confluence/display/AMBARI/Moving+Metrics+Collector+to+a+new+host
First of all, I am not able to find the origin of the error. Please share your experience if you ever faced this problem.
This happens sometimes that port is already being use by another process when we try to move collector to new host with 'Curl' commands specified on apache wiki.
Istead of doing using this you can leverage the feature which Ambari provides from it's GUI to move components from one host to another host .
'Move Master Wizard'
Follow the steps stated at Move Master Wizard , Ambari will take care rest of things for you.
I have fixed this issue by killing the process running in that port and restart the service. You can also do a manual reboot of the machine to fix this issue.
I downloaded the latest sandbox from this url - http://hortonworks.com/products/hortonworks-sandbox/ and played it with my VM Player. I have reached till the screen where URL is displayed. Now when I try to login with that URL I am getting 'Web page not available' (chrome), 'Can't reach page' (IE), 'The connection has timed out' (Firefox) error basically not working in any browser.
Can someone help me how to troubleshoot this?
I am using Windows 10, VMPlayer 7.3 and here is the page that gets displayed in VM Player -
I am using Windows 10, VMPlayer 15 and HDP Sandbox 3.0.1.
Setting the network adapter to Bridged Networking and restart the virtual Machine can solve this problem.
Try these methods
Ping 192.168.183.141. If you are getting any reply, then problem with VMNetwork adopter configurations
If it is not pinging check your firewall settings
Last try this...repair your VMPlayer (it will configure default services) or remove and re-install VMPlayer
Alright i had the same problem. It is actually not related to the VM or the browser. It is actually the Network adapter installed by the Vm which allows it to use host's machines networks.
In my case i was using Vmware so it had installed two network adapters
So all i had to do was to Enable them.
[Windows Users]
Go to Control Panel > Network and Internet > Network Connections
Find the Vmware Network Adapter
Right click on it and Enable them
Done Try to open the Url now
Cheers!
Recently I have been working on Ambari. But after I installed successfully, everything is working well except the HBase. Only the HBase master is good, and other RegionServers all get the alert:
Connection failed: [Errno 111] Connection refused to server1.hadoop:16030. (the domain name differs from machines.)
Anyone have the same problem?
I have fixed this issue. I read the log file in /var/log/hbase/*.log of my region servers ,and find that it's clock is not sync with the master's. So I make all the servers to sync its clock to the master's using ntpd. Then I restart the ambari components and no alert showed up!!!
Think this may help those with the problem.