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 <[email protected]> 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
> 
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