On 12/09/2013 06:21 AM, Johnny Hughes wrote: > On 12/07/2013 09:07 AM, Mogens Kjaer wrote: >> On 12/06/2013 12:49 PM, Lars Hecking wrote: >>> Something got mixed up somewhere. The first one (md5 20bb...) is from the x86_64 >>> branch, both 6.4 and 6.5, and the second one (md5 d37f...) is from the i386 >>> branch, also 6.4 and 6.5. >>> >>> d37fe4404a7a5fdb27b29f9b5ed09c73 ./6.4/os/i386/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >>> 20bb02e6f3b7b71e09dcaff7f3b0ca02 ./6.4/os/x86_64/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >>> d37fe4404a7a5fdb27b29f9b5ed09c73 ./6.5/os/i386/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >>> 20bb02e6f3b7b71e09dcaff7f3b0ca02 ./6.5/os/x86_64/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> Hm, am I the only mirror maintainer that runs hardlinkpy on the tree >> after each mirror? >> >> Why are there different md5sum's on these files? >> >> They are noarch rpms, so they should be identical in i386 and x86_64? >> >> I get the following: >> >> # md5sum `locate python-slip-dbus-0.2.20-1.el6_2.noarch.rpm` >> d37fe4404a7a5fdb27b29f9b5ed09c73 >> /var/ftp/pub/mirrors/centos/6.4/os/i386/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> 20bb02e6f3b7b71e09dcaff7f3b0ca02 >> /var/ftp/pub/mirrors/centos/6.4/os/x86_64/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> d37fe4404a7a5fdb27b29f9b5ed09c73 >> /var/ftp/pub/mirrors/centos/6.5/os/i386/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> d37fe4404a7a5fdb27b29f9b5ed09c73 >> /var/ftp/pub/mirrors/centos/6.5/os/x86_64/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> >> and: >> # ls -li `locate python-slip-dbus-0.2.20-1.el6_2.noarch.rpm` >> 98845547 -rw-rw-r-- 3 mk 500 30844 Mar 26 2012 >> /var/ftp/pub/mirrors/centos/6.4/os/i386/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> 98315857 -rw-rw-r-- 1 mk 500 30844 Mar 26 2012 >> /var/ftp/pub/mirrors/centos/6.4/os/x86_64/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> 98845547 -rw-rw-r-- 3 mk 500 30844 Mar 26 2012 >> /var/ftp/pub/mirrors/centos/6.5/os/i386/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> 98845547 -rw-rw-r-- 3 mk 500 30844 Mar 26 2012 >> /var/ftp/pub/mirrors/centos/6.5/os/x86_64/Packages/python-slip-dbus-0.2.20-1.el6_2.noarch.rpm >> >> Mogens >> > They would not necessarily have the exact same md5sum just because they > are noarch. The way mock compiles RPMs, it would be built on each > builder separately. The possibility exists that something very minor > can (and sometimes does) happen to make things not exact. I will > analyze these an tell you the difference in an upcoming e-mail. > > We have changed our policy and now we will use the same noarch file, > from one of the arches, on both if it exist in the arches. That policy > did indeed cause a change in the MD5SUM as they were different before. > Again, I'll post in another e-mail what is different between the two, > but this is as expected. > > It should not happen any more moving forward though, as we will only > ever release ONE noarch file in future, regardless of it they built > slightly differently from the builders. > OK, the only difference on these RPMs is the signature (it happened at a different time, by one second). If you look at "rpm -qpi" you will see one of them was signed at: Signature : RSA/SHA1, Mon 26 Mar 2012 08:36:33 AM CDT, Key ID 0946fca2c105b9de the other: Signature : RSA/SHA1, Mon 26 Mar 2012 08:36:32 AM CDT, Key ID 0946fca2c105b9de (they were 2 separate files, produced in two separate build trees, and therefore have 2 separate signature times) However, if you do this to each of the files to remove the signatures: rpm --delsign python-slip-dbus-0.2.20-1.el6_2.noarch.rpm then do an md5sum, you will see that underlying (and unsigned) rpms have identical md5sums of: [johnny@m4500n 6.5]$ md5sum python-slip-dbus-0.2.20-1.el6_2.noarch.rpm 8cb0c87fd4942673c79c304d3c29aedb python-slip-dbus-0.2.20-1.el6_2.noarch.rpm [johnny@m4500n 6.5]$ cd ../6.4/ [johnny@m4500n 6.4]$ md5sum python-slip-dbus-0.2.20-1.el6_2.noarch.rpm 8cb0c87fd4942673c79c304d3c29aedb python-slip-dbus-0.2.20-1.el6_2.noarch.rpm Also, the content of each RPM is identical at these values: 511a4571af6e42e130c43bfff2507863 ./usr/lib/python2.6/site-packages/slip.dbus-0.2.20-py2.6.egg-info 01bb823d18266732b2cb24d7ea1d693b ./usr/lib/python2.6/site-packages/slip/dbus/__init__.pyc 77ec375c396560fc4dd8bf0160831cfa ./usr/lib/python2.6/site-packages/slip/dbus/bus.pyo 426ba8cb64e3ce60a40042ce961faebc ./usr/lib/python2.6/site-packages/slip/dbus/proxies.pyo 5d5bab55941cb57d18bddb09dc1993bb ./usr/lib/python2.6/site-packages/slip/dbus/proxies.py 01bb823d18266732b2cb24d7ea1d693b ./usr/lib/python2.6/site-packages/slip/dbus/__init__.pyo 89073c18b01d301eefd7169fc08360fa ./usr/lib/python2.6/site-packages/slip/dbus/bus.py dc7e59367bab048fc3bca4fc94e2f5fc ./usr/lib/python2.6/site-packages/slip/dbus/mainloop.pyc 3010ee109154bb35be8458f1e0ab65e1 ./usr/lib/python2.6/site-packages/slip/dbus/polkit.pyo 2af7a635fd80074aa75a095310cbdf96 ./usr/lib/python2.6/site-packages/slip/dbus/polkit.pyc 77ec375c396560fc4dd8bf0160831cfa ./usr/lib/python2.6/site-packages/slip/dbus/bus.pyc dc7e59367bab048fc3bca4fc94e2f5fc ./usr/lib/python2.6/site-packages/slip/dbus/mainloop.pyo 0e2cfc449f2307991ab1c5d1b0839e76 ./usr/lib/python2.6/site-packages/slip/dbus/mainloop.py 635409538835be2bad6e072df6fe50d8 ./usr/lib/python2.6/site-packages/slip/dbus/service.pyo 6d8e78bc35557e342eecce5e7a3b55f1 ./usr/lib/python2.6/site-packages/slip/dbus/polkit.py 3f0ed599e4b44a828d46651e192eaf48 ./usr/lib/python2.6/site-packages/slip/dbus/__init__.py 315ea359d43863330288b57460296bd8 ./usr/lib/python2.6/site-packages/slip/dbus/service.py 9a92a5c97b06379b0d27d40b5835189b ./usr/lib/python2.6/site-packages/slip/dbus/constants.pyc b38049b11f629bb18ec16a529c468c56 ./usr/lib/python2.6/site-packages/slip/dbus/constants.py 9a92a5c97b06379b0d27d40b5835189b ./usr/lib/python2.6/site-packages/slip/dbus/constants.pyo 426ba8cb64e3ce60a40042ce961faebc ./usr/lib/python2.6/site-packages/slip/dbus/proxies.pyc 635409538835be2bad6e072df6fe50d8 ./usr/lib/python2.6/site-packages/slip/dbus/service.pyc 3075a8ae134b28ac0cb602efac73817c ./usr/share/doc/python-slip-dbus-0.2.20/README 031777f09db135ce66c192765c7b1897 ./usr/share/doc/python-slip-dbus-0.2.20/example/org.fedoraproject.slip.example.policy 5518ddb1e0ecc74aaae45e6c10497996 ./usr/share/doc/python-slip-dbus-0.2.20/example/org.fedoraproject.slip.example.mechanism.service b16a87935336095bcbb01fb2ca8265e2 ./usr/share/doc/python-slip-dbus-0.2.20/example/README 8d2b740e128fe5efb7972bcf2cc1343d ./usr/share/doc/python-slip-dbus-0.2.20/example/org.fedoraproject.slip.example.mechanism.conf 00c6cc4ff6554c633144f50860aebd83 ./usr/share/doc/python-slip-dbus-0.2.20/example/example-conf-client.py f4a406243c67d9c357b2c7c1e16e5ec3 ./usr/share/doc/python-slip-dbus-0.2.20/example/Makefile 7f325e65d8a1eb59b8a09bdcb413d6b1 ./usr/share/doc/python-slip-dbus-0.2.20/example/example-conf-mechanism.py d41d8cd98f00b204e9800998ecf8427e ./usr/share/doc/python-slip-dbus-0.2.20/example/import_marker.py Therefore the only difference is the signatures, and that difference is the time being 1 second different in the rpm metadata ... We will prevent these in the future because we now ONLY take one of the 2 noarch RPMs and put it in both trees (if applicable to both trees). Thanks, Johnny Hughes
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