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  1. RHEL
  2. RHEL-26459

Leapp hits the default per-process file limit after the last update

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    • leapp-repository-0.21.0-3.el8_10
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    • rhel-sst-upgrades
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    • Leapp: 9.6 & 10.0
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      Since the latest update, I have encountered multiple cases of Leapp hitting the default limit of file descriptors per process (You can find them linked to the issue).

      The visible error is "OperationalError: unable to open database file". Using strace we can see it fails to open it due to the limit:

      70588 16:36:26.909394 open("/var/lib/leapp/leapp.db", O_RDWR|O_CREAT|O_CLOEXEC, 0644) = -1 EMFILE (Too many open files) <0.000023>
70588 16:36:26.909445 open("/var/lib/leapp/leapp.db", O_RDONLY|O_CLOEXEC) = -1 EMFILE (Too many open files) <0.000017>

      As a workaround, the limit can be raised temporarily with "ulimit":

      # ulimit -n 16384

              leapp-notifications leapp-notifications
              rhn-support-jeperez Jesus Perez
              Tomas Fratrik Tomas Fratrik
              RHEL Upgrades QE Team RHEL Upgrades QE Team
              Miriam Portman Miriam Portman
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                Created:
                Updated: