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From Dawid Weiss <dawid.we...@gmail.com>
Subject Fwd: Maven Central is probably blocked in China
Date Mon, 09 Jul 2012 19:41:30 GMT
wrt our China mirror for ivy -- seems like it's not a general policy
to block maven central?


---------- Forwarded message ----------
From: Brian Fox <brianf@infinity.nu>
Date: Mon, Jul 9, 2012 at 7:58 PM
Subject: Re: Maven Central is probably blocked in China
To: Maven Developers List <dev@maven.apache.org>
Cc: Niclas Hedhman <niclas@hedhman.org>


Niclas,
We are seeing a lot of traffic to Central from China, so this certainly
isn't a case of the Great Firewall blocking everything, rather it seems a
little more localized. Can you send more more info about your source ip and
geo location that we could use to see what's up? Possibly we can get the
traffic routed to a China friendly ip.

On Mon, Jul 9, 2012 at 12:08 PM, Brian E. Fox <brianf@infinity.nu> wrote:

> Hi Nicolas, this isn't intentional of course. Let me see what I can dig up
> based in your traces.
>
> --Brian (mobile)
>
>
> On Jul 7, 2012, at 11:45 PM, Niclas Hedhman <niclas@hedhman.org> wrote:
>
> > (I am not subscribed, so please CC me on any responses)
> >
> > I live in China. I normally have a VPN enabled to circumvent various
> > blocking (YouTube, Twitter, ++) that the Chinese government has in
> > place. I normally don't think much about it. But, today I had my
> > computer rebooted and couldn't build a project, because Maven Central
> > couldn't be reached.
> >
> > So, before I realized that my VPN wasn't running I tracerouted a bit.
> >
> > repo1 resolved to
> >
> > niclas:~ niclas$ dig repo1.maven.org | grep "^[a-z]"
> > repo1.maven.org.    1751    IN    CNAME    central.maven.org.
> > central.maven.org.    212    IN    CNAME    central02.maven.org.
> > central02.maven.org.    7112    IN    CNAME    wpc.829D.edgecastcdn.net.
> > wpc.829D.edgecastcdn.net. 3164    IN    CNAME    gs1.wpc.edgecastcdn.net
> .
> > gs1.wpc.edgecastcdn.net. 2292    IN    A    68.232.45.253
> >
> > and from that I also tried central01
> >
> > niclas:~ niclas$ dig central01.maven.org | grep "^[a-z]"
> > central01.maven.org.    6477    IN    CNAME
> central01.maven.org.edgesuite.net.
> > central01.maven.org.edgesuite.net. 20877 IN CNAME a978.g1.akamai.net.
> > a978.g1.akamai.net.    4    IN    A    124.40.42.31
> > a978.g1.akamai.net.    4    IN    A    124.40.42.6
> >
> > And with tracerouting both (see below), it struck me that VPN might
> > not be enabled and the IP on "edgecastcdn.net" is probably blocked by
> > China potentially serving something they don't like, could be
> > anything... Yeah, China is BAD, we all know that, but shouldn't we
> > (Apache) try to minimize the problem for your ordinary Chinese
> > developer, could be a student, hobbyist, small entrepreneur and so on,
> > who isn't anti-government (most people here are quite content with the
> > government) to be able to use Apache projects?
> >
> > The fact is now, that without reasonably reliable access to Maven
> > Central, one can not really participate in many, many of the Java
> > projects at ASF.
> >
> > I don't know how the DNS and host resolution is supposed to work, who
> > is participating in the hosting and under what terms. But I think
> > Maven/Sonatype should have in its interest to NOT EXCLUDE some
> > staggering amount of Java programmers, and perhaps try to find a way
> > to get a better SLA here. If you need help from someone to check "from
> > the inside the Great Firewall", just let me know...
> >
> >
> > Cheers
> > Niclas
> >
> >
> > traceroute to gs1.wpc.edgecastcdn.net (68.232.45.253), 64 hops max, 52
> > byte packets
> > 1  192.168.2.1 (192.168.2.1)  1.446 ms  0.980 ms  0.900 ms
> > 2  58.246.152.1 (58.246.152.1)  9.855 ms  11.724 ms  8.662 ms
> > 3  210.22.67.29 (210.22.67.29)  9.563 ms  3.698 ms  1.712 ms
> > 4  112.64.251.165 (112.64.251.165)  1.696 ms  1.819 ms  3.215 ms
> > 5  * * *
> > 6  * * *
> > 7  * * *
> > 8  * * *
> > 9  * * *
> > 10  * * *
> > 11  * * *
> > 12  * * *
> > 13  * * *
> > 14  * * *
> > 15  * * *
> > 16  * * *
> > 17  * * *
> >
> >
> > niclas:qi4j-sdk niclas$ traceroute  central01.maven.org
> > traceroute: Warning: central01.maven.org has multiple addresses; using
> > 209.107.203.19
> > traceroute to a978.g1.akamai.net (209.107.203.19), 64 hops max, 52 byte
> packets
> > 1  192.168.2.1 (192.168.2.1)  1.681 ms  0.910 ms  0.889 ms
> > 2  58.246.152.1 (58.246.152.1)  14.958 ms  14.339 ms  115.382 ms
> > 3  112.64.251.133 (112.64.251.133)  3.516 ms  2.892 ms  1.682 ms
> > 4  112.64.251.165 (112.64.251.165)  2.117 ms  1.934 ms  1.926 ms
> > 5  112.64.243.170 (112.64.243.170)  3.859 ms  8.432 ms  4.110 ms
> > 6  * * *
> > 7  219.158.9.209 (219.158.9.209)  4.284 ms  3.517 ms  6.284 ms
> > 8  219.158.100.194 (219.158.100.194)  32.392 ms  34.428 ms  32.079 ms
> > 9  219.158.96.230 (219.158.96.230)  33.214 ms  33.501 ms  33.470 ms
> > 10  219.158.96.222 (219.158.96.222)  31.660 ms  31.564 ms  33.370 ms
> > 11  sl-st30-sj-0-4-3-3.sprintlink.net (144.228.111.29)  214.116 ms
> > 466.648 ms  503.740 ms
> > 12  sl-st31-sj-0-12-0-3.sprintlink.net (144.232.3.33)  180.679 ms
> >    sl-st31-sj-0-8-0-0.sprintlink.net (144.232.3.29)  214.923 ms
>  231.186 ms
> > 13  144.232.8.194 (144.232.8.194)  522.103 ms  381.628 ms  221.618 ms
> > 14  te0-0-0-3.ccr22.sjc01.atlas.cogentco.com (154.54.6.109)  219.036 ms
> >    te0-3-0-3.ccr22.sjc01.atlas.cogentco.com (154.54.6.101)  184.460 ms
> >    te0-1-0-0.ccr21.sjc03.atlas.cogentco.com (66.28.4.53)  305.247 ms
> > 15  te0-3-0-2.ccr22.lax01.atlas.cogentco.com (154.54.2.149)  614.732 ms
> >    te0-1-0-0.ccr21.sjc01.atlas.cogentco.com (154.54.83.253)  216.883 ms
> >    te0-1-0-3.ccr21.sjc01.atlas.cogentco.com (154.54.6.237)  450.823 ms
> > 16  te9-3.ccr02.lax05.atlas.cogentco.com (154.54.82.154)  662.795 ms
> >    154.54.85.25 (154.54.85.25)  189.819 ms
> >    te7-8.ccr02.lax05.atlas.cogentco.com (154.54.30.198)  888.842 ms
> > 17  te4-1.mpd01.lax05.atlas.cogentco.com (154.54.28.69)  693.184 ms
> >    te9-6.mpd01.lax05.atlas.cogentco.com (154.54.82.150)  190.542 ms *
> > 18  38.104.84.130 (38.104.84.130)  781.037 ms
> >    38.104.84.126 (38.104.84.126)  425.045 ms
> >    38.104.84.130 (38.104.84.130)  643.349 ms
> > 19  te8-2-3580.bbr1.lax1.bandcon.com (69.16.190.214)  189.074 ms
> > 189.148 ms  193.641 ms
> > 20  209.107.203.19 (209.107.203.19)  629.087 ms  412.329 ms  225.912 ms
> >
> > --
> > Niclas Hedhman, Software Developer
> > http://www.qi4j.org - New Energy for Java
> >
> > I live here; http://tinyurl.com/3xugrbk
> > I work here; http://tinyurl.com/6a2pl4j
> > I relax here; http://tinyurl.com/2cgsug
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: dev-unsubscribe@maven.apache.org
> > For additional commands, e-mail: dev-help@maven.apache.org
> >
>

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