perfSONAR User Q&A and Other Discussion

[Andrew Lake <>]

Whoops hit send a bit early on that last one. See below:

Hi,

NDT is no longer supported by the perfSONAR project as of perfSONAR 4.0. We will continue build web100 kernels for CentOS 6 as we have until October 17, 2017 (6 months after the release of 4.0). 

I think there is some confusion on the list though. Let me do my best to clarify a few things:

1. If you have NDT installed on an existing CentOS 6 system it will not get uninstalled from the host. You won’t see a link on the main perfSONAR Toolkit web page but the package should still be installed.

2. If you are doing a fresh install of perfSONAR 4.0, NDT and web100 WILL NOT be installed.

3. It was noted that our default firewall rules are blocking the NDT ports now. We’ll likely discuss whether we will continue to do that on CentOS 6 as a development team, but you can open the ports with the following commands:

 

iptables -I INPUT 1 -m state --state NEW -m tcp -p tcp --dport 3001:3003 -j ACCEPT 

iptables -I INPUT 1 -m state --state NEW -m tcp -p tcp --dport 7123 -j ACCEPT 

iptables -I INPUT 1 -m state --state NEW -m tcp -p tcp --dport 843 -j ACCEPT 

/etc/init.d/iptables save

ip6tables -I INPUT 1 -m state --state NEW -m tcp -p tcp --dport 3001:3003 -j ACCEPT 

ip6tables -I INPUT 1 -m state --state NEW -m tcp -p tcp --dport 7123 -j ACCEPT 

ip6tables -I INPUT 1 -m state --state NEW -m tcp -p tcp --dport 843 -j ACCEPT 

/etc/init.d/ip6tables save

4. The web100 patch does not support the kernel that ships with CentOS 7, there is no way to get NDT on CentOS 7. 

5. The perfSONAR team doesn’t have a developer that commits code to NDT and hasn't for some time. We can't stop you from doing a “yum install ndt” but don’t expect any updates from us. The NDT code lives on as part of M-LAB( https://www.measurementlab.net) which is a completely separate project.

Hope that helps,

Andy

On April 18, 2017 at 11:54:21 AM, Andrew Lake () wrote:

Hi,

NDT is no longer supported by the perfSOANR project as of perfSONAR 4.0. We will continue build web100 kernels as we have until October 17, 2017 (6 months after the release of 4.0). 

I think there is some confusion on the list though:

1. If you have NDT installed on an existing system it will not get uninstalled from the host. You won’t see it on the main perfSONAR web page but the package should still be installed.

2. It was noted that our default firewall rules are blocking the NDT ports now. We’ll likely discuss whether we will continue to do that as a development team, but you can open the ports with the following commands:

 

On April 18, 2017 at 11:37:33 AM, Rich Sudlow () wrote:

Is there a recommended procedure to add ndt functionality
back with perfsonar 4.0? I can't run auto updates with the web100 kernels
right?

I also noticed on the release notes that web100 isn't compiled for centos 7
kernels and will expire soon for centos 6.

Is the use of ndt as a separate package going to continue?

Thanks,

Rich








--
Rich Sudlow
University of Notre Dame
Center for Research Computing - Union Station
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(574) 631-7258 (office)
(574) 807-1046 (cell)