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[eclipse.org-committers] CVS performance - pserver access
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From the "it can't always be us" dept.
A few of you have reported slow connection times to anonymous pserver
CVS, especially when performing builds.
The reason for this is that a few of you have a broken DNS, where your
IP doesn't reverse-lookup at all, or the reverse-lookup and the forward
don't match. This would introduce a delay of *at least* 30 seconds for
your connection.
One project had this problem yesterday with their build server in
Turkey. This morning their DNS is fixed, and their connection time went
from 32 seconds yesterday to 0.38 seconds today. While in Turkey I
tested CVS, website, downloads and bugzilla performance. All were very
responsive from across the pond. Thanks Naci for allowing me to test all
this!
To test your DNS, please log in to Committer Tools [1] and hit the Test
my DNS link. I reconfigured pserver to be less strict with the lookups,
but I cannot remove them altogether because I need to enforce
domain-name restrictions on specific domains. And no, I'm not about to
start maintaining your broken hostnames in my hosts files.
Here are some of the broken hosts from yesterday's log. I have
*hundreds* of entries from some of these hosts:
(bi01pt1.ct.us.ibm.com): Name or service not known
(lc-ez-63-96-179-200.bea.com): Name or service not known
(nwn-adventures.com): Temporary failure in name resolution
(200-153-222-123.speedyterra.com.br): Name or service not known
(www-900.ibm.com) didn't return ::ffff:202.108.130.138
(34.110.254.64.virtela.com): Name or service not known
(igw.togethersoft.ru): Name or service not known
(phenixsolutions.net) didn't return ::ffff:213.179.234.94
(mailhost.tni.fr) didn't return ::ffff:195.25.255.1
(rt-lan.realtech.de): Name or service not known
host name mismatch: ::ffff:195.234.216.68 != rt-lan.realtech.de
(::ffff:195.234.216.68)
(84-12-152-144.dyn.gotadsl.co.uk): Name or service not known
(212.98.161.62.bn.by): Name or service not known
(localhost) didn't return ::ffff:203.210.200.189 (this is just plain wrong)
(h-0-96.siberia.net): Name or service not known
(u233.tissat.es): Name or service not known
(sgw.sciant.com): Name or service not known
(ADSL-F49-S67-critical.nortenet.pt): Name or service not known
(test.demonnet.org): Name or service not known
(unk-131-225-168.peoplesoft.com): Name or service not known
(host064006.metrored.net.mx): Name or service not known
(115-127-108-62.COOL.ADSL.VLine.verat.net): Name or service not known
[1] https://dev.eclipse.org/committers/
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