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kipibenkipod
n00b
Joined: 15 Apr 2010
Posts: 51
Location: Israel
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 Posted: Thu Apr 15, 2010 8:16 am Post subject: Multiple SYNC sources in make.conf |
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Hi,
I would like to use two sync sources in make.conf like this:
| Code: | | SYNC="rsync://MYLOCASERVER/gentoo-portage rsync://PUBLICSERVER/gentoo-portage/" |
This setup don't work if MYLOCALSERVER is down. It will just abort after 3 tries, and will not try to use PUBLICSERVER.
Why there is no support for redundant SYNC mirrors?
Regards,
Kfir |
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John R. Graham
Administrator
Joined: 08 Mar 2005
Posts: 4849
Location: Somewhere over Atlanta, Georgia
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| Posted: Thu Apr 15, 2010 10:41 am Post subject: |
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It's true that Portage doesn't support fallback sync servers. I don't know why. However, if you're not averse to a little scripting, this is trivial to correct: | my_sync.sh: | #!/bin/bash
if ! SYNC="rsync://local_server_uri_or_ip" emerge --sync ; then
SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage" emerge --sync
fi |
- John
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Yoda: "Intentionally left blank, this space is." |
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d2_racing
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Joined: 25 Apr 2005
Posts: 12867
Location: Ste-Foy,Canada
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| Posted: Thu Apr 15, 2010 12:08 pm Post subject: |
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Indeed, I found that one too lately.
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kipibenkipod
n00b
Joined: 15 Apr 2010
Posts: 51
Location: Israel
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| Posted: Thu Apr 15, 2010 12:20 pm Post subject: |
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| John R. Graham wrote: | It's true that Portage doesn't support fallback sync servers. I don't know why. However, if you're not averse to a little scripting, this is trivial to correct: | my_sync.sh: | #!/bin/bash
if ! SYNC="rsync://local_server_uri_or_ip" emerge --sync ; then
SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage" emerge --sync
fi |
- John |
Ok thanks,
I did this in my sync script:
| Code: |
SYNC_SERVERS="rsync://HOME/gentoo-portage rsync://FIRST_INTERNET_SERVER/gentoo-portage/ rsync://SECOND_INTERNET_SERVER/gentoo-portage/"
for server in $SYNC_SERVERS
do
SYNC="$server" eix-sync -q && break
done
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Thanks for your help.
Now I would like to know, why there are no redundant sync servers in make.conf
Thanks,
Kfir |
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Genone
Retired Dev
Joined: 14 Mar 2003
Posts: 8690
Location: beyond the rim
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| Posted: Thu Apr 15, 2010 2:37 pm Post subject: |
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| Because so far noone had a need for it, most people are happy with the round-robin DNS solution. |
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kipibenkipod
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Joined: 15 Apr 2010
Posts: 51
Location: Israel
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| Posted: Thu Apr 15, 2010 6:31 pm Post subject: |
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| Genone wrote: | | Because so far noone had a need for it, most people are happy with the round-robin DNS solution. |
How does the DNS solution work? |
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Genone
Retired Dev
Joined: 14 Mar 2003
Posts: 8690
Location: beyond the rim
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| Posted: Thu Apr 15, 2010 10:18 pm Post subject: |
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| The rsync.*.gentoo.org entries are actually groups of servers, so if one goes down you're just redirected to another one transparently. Of course that doesn't work if you want to use a private mirror as primary source. |
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Timmer
Guru
Joined: 24 Aug 2004
Posts: 309
Location: Bloomington, IN, USA
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| Posted: Wed Aug 11, 2010 10:44 pm Post subject: |
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Is there a bug for this yet to vote for?
I have my desktop set up as a private rsync for my laptop, but then if I'm not home (on vacation, for example), i can't sync to my home server. It's got a different address in the outside world. This would be a useful feature. |
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cappellaiomatto
n00b
Joined: 04 Sep 2010
Posts: 5
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| Posted: Sat Sep 04, 2010 5:59 pm Post subject: |
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Actually there are two bug reports: the first is about the documentation that incorrectly reported that was possible to specify multiple servers in the SYNC variable (maybe in the beginning it was allowed) bug 43778
The second is more relevant, but the poster missed the point, and it was closed as invalid: bug 159740
There are other places where this idea is stressed: http://gentoo-what-did-you-say.blogspot.com/2010/04/multiple-portage-sync-servers.html.
Gentoo users are encouraged to set up their own rsync mirror, but there isn't a trivial way to specify a fall-back for sync mirrors... |
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someone19
n00b
Joined: 26 Sep 2006
Posts: 51
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| Posted: Sun Sep 05, 2010 2:25 am Post subject: |
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| Timmer wrote: | Is there a bug for this yet to vote for?
I have my desktop set up as a private rsync for my laptop, but then if I'm not home (on vacation, for example), i can't sync to my home server. It's got a different address in the outside world. This would be a useful feature. |
My solution is this - My home router is also an rsync server, and I use dnsmasq as my DNS forwarding to local clients.
The laptop make.conf is set to rsync.us.gentoo.org, and dnsmasq.conf has
| Code: | | address=/rsync.gentoo.org/192.168.9.1 |
When I'm home all the gentoo machines hit the local mirror for the tree, when I'm remote it hits the normal round-robbin list of servers.
Similar can be done with a re-direct depending on your home network setup. |
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cappellaiomatto
n00b
Joined: 04 Sep 2010
Posts: 5
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| Posted: Sun Sep 05, 2010 9:15 am Post subject: |
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| someone19 wrote: |
My solution is this - My home router is also an rsync server, and I use dnsmasq as my DNS forwarding to local clients.
The laptop make.conf is set to rsync.us.gentoo.org, and dnsmasq.conf has
| Code: | | address=/rsync.gentoo.org/192.168.9.1 |
When I'm home all the gentoo machines hit the local mirror for the tree, when I'm remote it hits the normal round-robbin list of servers.
Similar can be done with a re-direct depending on your home network setup. |
This solution is really neat, no rsync errors, no actual fall-back.
It is really far better than a client-side script, everything is managed server-side in a transparent way.
I'm already testing it! 
BTW IIUC it should be
| Code: | | address=/us.gentoo.org/192.168.9.1 |
or
| Code: | | address=/rsync.us.gentoo.org/192.168.9.1 |
otherwise the client requests won't be intercepted. |
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