Asymmetric traffic issues?

[S.Fuller]

Environment:

Two physical hosts
- Cloudstack 4.11.3
- Verified that there are no bandwidth limits in place on any of the
templates or in global settings.

Two isolated networks ("Client" and  "Server")
- Each has a vrouter with a public and private address
- One Windows 2016 VM on each network (running the latest virtio drivers)
- each node running latest version of Iperf3 to test throughput

Testing/Observation:

If the Client VM and the vrouter for the isolated Client network are on the
same physical host, we see symmetrical throughput in the 2 Gbps range,
whether we run iperf in regular mode or in reverse mode (iperf -R).

If the Client VM and the vrouter for the isolated Client network are on
different physical hosts, we are seeing 25% of the throughput running iperf
in regular mode vs running it in reverse mode.

Has anyone encountered this issue before? If we change the Client VM to
Linux (either CentOS 7 or Ubuntu) OR we use the E1000 driver, we see
symmetrical throughput in our tests, no matter where the vrouter is in
relation to the Client VM.

-- 
Steve Fuller
steveful...@gmail.com

Re: Using S3 Storage for Secondary storage

[Levin Ng]

Hi Antoine,

I’m looking for same question too. I’ve tested few s3fs implementation and only 
found rclone mount and juicejfs is working properly. However it require a huge 
set of buffering area to store intermediate images.

Regards,
Levin

From: Antoine Boucher 
Date: Monday, 27 June 2022 at 21:02
To: users 
Subject: Using S3 Storage for Secondary storage
Hello,

We are consolidating our backup storage to S3 using MinIO. It appears that 
migration from NFS-based secondary storage to S3 is none trivial task since 
both can not coexist for the transition period. Has anyone done the transition? 
We can’t lose the existing data from the current Secondary NFS storage data.

Alternatively, would an s3fs mounted on an NFS share work adequately for 
CloudStack‘s requirement?

Regards,

Antoine

Re: Volume download link on HTTPS

[Wei ZHOU]

Hi Vivek,

Please refer to
https://www.shapeblue.com/securing-cloudstack-4-11-with-https-tls/
You need to change some global settings and restart mgtserver/ssvm.

-Wei

On Mon, 27 Jun 2022 at 14:44, Vivek Kumar 
wrote:

> Hello Folks,
>
>
> We have option to download the volumes, when we click on the download
> volume it will give you a http link. Can we somehow generate the HTTPs link
> rather then the HTTP link. We have offloaded the SSL certificates in the
> system VMs.  We have not offloaded any certificate to our upfront load
> balancer or ACS managements VMs.
>
>
>
>
> Vivek Kumar
> Sr. Manager - Cloud & DevOps
> TechOps | Indiqus Technologies
>
> + 91 7503460090 
> vivek.ku...@indiqus.com 
> www.indiqus.com 
>
>
>
>
> --
> This message is intended only for the use of the individual or entity to
> which it is addressed and may contain confidential and/or privileged
> information. If you are not the intended recipient, please delete the
> original message and any copy of it from your computer system. You are
> hereby notified that any dissemination, distribution or copying of this
> communication is strictly prohibited unless proper authorization has been
> obtained for such action. If you have received this communication in
> error,
> please notify the sender immediately. Although IndiQus attempts to sweep
> e-mail and attachments for viruses, it does not guarantee that both are
> virus-free and accepts no liability for any damage sustained as a result
> of
> viruses.
>

Using S3 Storage for Secondary storage

[Antoine Boucher]

Hello,

We are consolidating our backup storage to S3 using MinIO. It appears that 
migration from NFS-based secondary storage to S3 is none trivial task since 
both can not coexist for the transition period. Has anyone done the transition? 
We can’t lose the existing data from the current Secondary NFS storage data. 

Alternatively, would an s3fs mounted on an NFS share work adequately for 
CloudStack‘s requirement? 

Regards,

Antoine

Volume download link on HTTPS

[Vivek Kumar]

Hello Folks,


We have option to download the volumes, when we click on the download volume it 
will give you a http link. Can we somehow generate the HTTPs link rather then 
the HTTP link. We have offloaded the SSL certificates in the system VMs.  We 
have not offloaded any certificate to our upfront load balancer or ACS 
managements VMs.




Vivek Kumar
Sr. Manager - Cloud & DevOps
TechOps | Indiqus Technologies

+ 91 7503460090 
vivek.ku...@indiqus.com 
www.indiqus.com 




-- 
This message is intended only for the use of the individual or entity to 
which it is addressed and may contain confidential and/or privileged 
information. If you are not the intended recipient, please delete the 
original message and any copy of it from your computer system. You are 
hereby notified that any dissemination, distribution or copying of this 
communication is strictly prohibited unless proper authorization has been 
obtained for such action. If you have received this communication in error, 
please notify the sender immediately. Although IndiQus attempts to sweep 
e-mail and attachments for viruses, it does not guarantee that both are 
virus-free and accepts no liability for any damage sustained as a result of 
viruses.

[FINAL CALL] - Travel Assistance to ApacheCon New Orleans 2022

[Gavin McDonald]

 To all committers and non-committers.

This is a final call to apply for travel/hotel assistance to get to and
stay in New Orleans
for ApacheCon 2022.

Applications have been extended by one week and so the application deadline
is now the 8th July 2022.

The rest of this email is a copy of what has been sent out previously.

We will be supporting ApacheCon North America in New Orleans, Louisiana,
on October 3rd through 6th, 2022.

TAC exists to help those that would like to attend ApacheCon events, but
are unable to do so for financial reasons. This year, We are supporting
both committers and non-committers involved with projects at the
Apache Software Foundation, or open source projects in general.

For more info on this year's applications and qualifying criteria, please
visit the TAC website at http://www.apache.org/travel/
Applications have been extended until the 8th of July 2022.

Important: Applicants have until the closing date above to submit their
applications (which should contain as much supporting material as required
to efficiently and accurately process their request), this will enable TAC
to announce successful awards shortly afterwards.

As usual, TAC expects to deal with a range of applications from a diverse
range of backgrounds. We therefore encourage (as always) anyone thinking
about sending in an application to do so ASAP.

Why should you attend as a TAC recipient? We encourage you to read stories
from
past recipients at https://apache.org/travel/stories/ . Also note that
previous TAC recipients have gone on to become Committers, PMC Members, ASF
Members, Directors of the ASF Board and Infrastructure Staff members.
Others have gone from Committer to full time Open Source Developers!

How far can you go! - Let TAC help get you there.


===

Gavin McDonald on behalf of the Travel Assistance Committee.