[JIRA] (OVIRT-1775) system-sync_mirrors-fedora-updates-fc25-x86_64 job sometimes takes 3+ hours to complete

[Evgheni Dereveanchin (oVirt JIRA)]

Evgheni Dereveanchin created OVIRT-1775:
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             Summary: system-sync_mirrors-fedora-updates-fc25-x86_64 job sometimes takes 3+ hours to complete
                 Key: OVIRT-1775
                 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1775
             Project: oVirt - virtualization made easy
          Issue Type: Bug
          Components: oVirt Infra
            Reporter: Evgheni Dereveanchin
            Assignee: infra
            Priority: Low


The fc25 mirror sync job takes hours to complete:
http://jenkins.ovirt.org/view/All%20Running%20jobs/job/system-sync_mirrors-fedora-updates-fc25-x86_64/buildTimeTrend 

Builds #801, #813, #822, #825, #831, #839 took more than 3 hours to complete. Looking at the mirror server during build #839, reposync and genpkgmetadata.py processes were consuming resources and constantly waiting in D state with I/O Wait being around 70%

Opening a ticket to investigate the root cause of this slowdown.



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