[CentOS-mirror] msync.centos.org issues from Australia

Fri Jul 3 09:24:24 UTC 2015
daniel at glovine.com.au <daniel at glovine.com.au>

Like 12 months?  Its just the hostname of our msync mirror server we operate
here in Australia

 

From: centos-mirror-bounces at centos.org
[mailto:centos-mirror-bounces at centos.org] On Behalf Of Seamus Ryan
Sent: Friday, 3 July 2015 6:57 PM
To: Mailing list for CentOS mirrors.
Subject: Re: [CentOS-mirror] msync.centos.org issues from Australia

 

I am curious, for how long has "centose7.centos.org" been in use.

 

First I have heard of it.

 

From: centos-mirror-bounces at centos.org
[mailto:centos-mirror-bounces at centos.org] On Behalf Of Matthew Taylor
Sent: Friday, 3 July 2015 6:07 PM
To: Mailing list for CentOS mirrors.
Subject: Re: [CentOS-mirror] msync.centos.org issues from Australia

 

Hi Seamus,

Fair point in regards to the centose7.centos.org A Record. 

Perhaps you could use it until potential issues with msync.centos.org have
been resolved */subtle nudge to Fabian to investigate!* ?

Regards,
Matthew.

On 3/07/2015 17:42, Seamus Ryan wrote:

centose7.centos.org doesn't appear to be globally distributed
(https://www.whatsmydns.net/#A/centose7.centos.org)

 

However msync.centos.org is (https://www.whatsmydns.net/#A/msync.centos.org)

 

The reason I point towards the Australian POP is due to the fact quite a few
mirrors have dropped in and out of sync several times over the last week,
all about the same time. No other region appears to be experiencing these
issues.

 

It seems either msync.centos.org is broken for Australian ISP's (seems the
geo-load balancing is a bit sporadic) or something else is going on. When I
query pdns1/2/3.centos.org for msync.centos.org I get an array of responses,
some local and some international

 

103.18.205.7

199.187.126.92

124.217.252.175

216.172.56.29

 

Not exactly sure what is going on here, but something isn't right..

 

-          Seamus

 

 

From: centos-mirror-bounces at centos.org
[mailto:centos-mirror-bounces at centos.org] On Behalf Of Matthew Taylor
Sent: Friday, 3 July 2015 5:23 PM
To: centos-mirror at centos.org
Subject: Re: [CentOS-mirror] msync.centos.org issues from Australia

 

Hi all,

Interesting... We (centos.mirror.digitalpacific.com.au, AS55803,
101.0.101.66) pull all of our CentOS content from centose7.centos.org (which
resolves to 103.18.205.7), and we've had no problems at all.

Perhaps it may be related to msync.centos.org not redirecting the requests
correctly? For starters, I receive an A Record for a msync node not even
local to AU:



[root at mirror ~]# dig @pdns1.centos.org msync.centos.org +short
124.217.252.175

^ AS45839, Malaysia.



[root at mirror ~]# mtr 124.217.252.175 -r -c 5 -n
HOST: mirror.digitalpacific.com.a Loss%   Snt   Last   Avg  Best  Wrst StDev
  1. 101.0.101.65                  0.0%     5    2.2   2.4   2.2   2.9   0.3
  2. 101.0.127.189                 0.0%     5    0.7   0.7   0.6   0.7   0.0
  3. 101.0.127.229                 0.0%     5    0.2   0.3   0.2   0.4   0.0
  4. 202.68.66.209                 0.0%     5    0.8   0.5   0.3   0.8   0.2
  5. 202.68.64.67                  0.0%     5    0.8   0.6   0.6   0.8   0.1
  6. 129.250.3.76                  0.0%     5  120.2 120.4 120.2 121.1   0.4
  7. 129.250.6.209                 0.0%     5  120.4 122.8 120.2 133.0   5.7
  8. 129.250.2.121                 0.0%     5  166.8 169.8 165.1 180.4   6.1
  9. 129.250.5.83                  0.0%     5  168.9 168.8 168.3 169.7   0.6
 10. 180.87.112.153                0.0%     5  165.1 165.8 165.1 168.4   1.5
 11. 180.87.112.142               20.0%     5  200.1 200.0 200.0 200.1   0.0
 12. 180.87.163.26                 0.0%     5  199.3 199.3 199.1 199.7   0.2
 13. 180.87.12.1                   0.0%     5  191.0 191.0 190.9 191.0   0.0
 14. 216.6.121.137                20.0%     5  200.5 199.7 197.5 200.5   1.5
 15. 216.6.121.62                 20.0%     5  201.0 201.0 200.9 201.1   0.1
 16. 124.217.252.175              60.0%     5  208.0 209.0 208.0 210.1   1.5


..and it seems to be having issues too! Perhaps that could be one of the
reasons why the AU mirrors are all over the place..?

Regards,
Matthew.

On 3/07/2015 17:11, daniel at glovine.com.au wrote:

Hey Seamus

 

Just confirmed with a few people that our msync mirror is fine,

 

Can you A,  tell me your servers IP/hostname?

B, set your cron to use centose7.centos.org instead of mysnc hostname?

 

 

Daniel

 

From: centos-mirror-bounces at centos.org
[mailto:centos-mirror-bounces at centos.org] On Behalf Of Seamus Ryan
Sent: Friday, 3 July 2015 4:32 PM
To: centos-mirror at centos.org
Subject: [CentOS-mirror] msync.centos.org issues from Australia

 

Greetings,

 

I was just wondering if there is something funny going on with
msync.centos.org's availability within Australia. I see it is geo-load
balanced to various places around the world, but in particular in Australia
we are (in many cases) sent to

 

103.18.205.7 - 7-205-18-103.static.glovine.com.au

 

 

That's all well and good, but a quick look at
http://mirror-status.centos.org/ reveals quite a few of the Australian
mirrors have been all over the place over the last few weeks, which would
somewhat suggest something is up with this mirror source?

 

Any clues?

 

Cheers,

Seamus

 





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