Remote repository synchronization should be more reliable

[sandrobonazzola]

Remote repository synchronization should be more reliable.
In the following logs from http://jenkins.ovirt.org/job/vdsm_4.0_check-merged-fc23-x86_64/146/console

• It says that a first reposync run completed with success.
• It then advise that sometime reposync fails and try again but previous sync succeeded.
• It resync and finsih with success.
• It the says it failed and it tries again.
• It says it finished with success and then fail again.

the repository synchronization should be more reiliable and use all available mirrors.

`0:06:53.074 # Syncing remote repos locally (this might take some time):
00:06:53.074 * Acquiring lock for /var/lib/lago/reposync/repolock:
00:06:53.075 * Acquiring lock for /var/lib/lago/reposync/repolock: Success (in 0:00:00)
00:06:53.077 * Running reposync:
00:06:58.904 * Running reposync: Success (in 0:00:05)
00:06:58.905 * Due to bug https://bugzilla.redhat.com/show_bug.cgi?id=1332441 sometimes reposync fails to update some packages that have older versions already downloaded, will remove those if any and retry
00:06:59.019 * Rerunning reposync:
00:06:59.839 * Rerunning reposync: Success (in 0:00:00)
00:06:59.840 * Failed to run reposync again, that usually means that some of the local rpms might be corrupted or the metadata invalid, cleaning caches and retrying a second time
00:06:59.896 * Rerunning reposync a last time:
00:07:00.837 * Rerunning reposync a last time: Success (in 0:00:00)
00:07:00.838 * reposync command failed with following output:
local-vdsm-build-fc23 | 2.9 kB 00:00
00:07:00.839
local-vdsm-build-fc23/primary_db | 17 kB 00:00
00:07:00.839
ovirt-4.0-snapshot-fc23 | 2.9 kB 00:00
00:07:00.839
ovirt-4.0-snapshot-fc23/primary_db | 95 kB 00:00
00:07:00.840
ovirt-4.0-snapshot-static-fc23 | 2.9 kB 00:00
00:07:00.840
ovirt-4.0-snapshot-static-fc23/primary_db | 8.0 kB 00:00
00:07:00.840
ovirt-release40-4.0.0-1.noarch FAILED
00:07:00.840
(1/3): ovirt-release40-4.0. 0% [ ] 0.0 B/s | 0 B --:-- ETA

ovirt-release40-snapshot-4.0.0 FAILED
00:07:00.841
(1/3): ovirt-release40-pre- 0% [ ] 0.0 B/s | 0 B --:-- ETA

ovirt-release40-pre-4.0.0-1.no FAILED
00:07:00.841
(1/3): ovirt-release40-pre- 0% [ ] 0.0 B/s | 0 B --:-- ETA
ovirt-release40-snapshot-4.0.5-0.0.master.20160912021832.git32a9727.noarch: [Errno 256] No more mirrors to try.
00:07:00.842 ovirt-release40-4.0.5-0.0.master.20160912021832.git32a9727.noarch: [Errno 256] No more mirrors to try.
00:07:00.842 ovirt-release40-pre-4.0.5-0.0.master.20160912021832.git32a9727.noarch: [Errno 256] No more mirrors to try.
00:07:00.842
00:07:00.842 and following error:
00:07:00.842 Yum-utils package has been deprecated, use dnf instead.
00:07:00.843 See 'man yum2dnf' for more information.
`

[eedri]

@gbenhaim is this implemented in the lago-ovirt plugin or part of ovirt-system-tests?