[Bug 1813227] Re: lvm2-pvscan services fails to start on S390X DPM

[Christian Ehrhardt ]

Hi Lee,
thanks for the logs - once multipath is installed the devices are multipath mapped.
But obviously at the time pvscan failed they were not.

I'd expect that after you have installed all dependencies for multipath
to work that then restarting lvm2-pvscan works fine.

Can you confirm that this is the case?
If it is then the solution is either:
- have multipath avaiable in your ephemeral environment if you need it's support
- make the scan ignore some devices

I'd need a deeper look but those seem as the most likely reasons

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Title:
  lvm2-pvscan services fails to start on S390X DPM

Status in lvm2 package in Ubuntu:
  New

Bug description:
  The lvm2-pvscan service fails to start in the MAAS ephemeral
  environment. The service takes ~3 minutes to fail, blocking boot until
  failure. Curtin is expereincing a similar bug(LP:1813228) due to LVM.

  Release: 18.10(18.04 does not currently boot on S390X DPM)
  Kernel: 4.18.0-13-generic
  LVM: 2.02.176-4.1ubuntu3

  root at node3:~# lvm pvscan --cache --activate ay 8:98
    WARNING: Not using lvmetad because duplicate PVs were found.
    WARNING: Autoactivation reading from disk instead of lvmetad.
    WARNING: PV tIvQUe-wsuE-RWlZ-Wmdo-uzws-qL5H-Y9zW5l on /dev/sdb2 was already found on /dev/sdfe2.
    WARNING: PV 3zsO6H-QCQq-eyJZ-8aLc-TGU1-q91J-LFWsKs on /dev/sde2 was already found on /dev/sdfh2.
    WARNING: PV VEyfqe-Vln5-zMp5-wCeK-hkQN-u8Wp-LkPTMF on /dev/sdba2 was already found on /dev/sdhd2.
    WARNING: PV H7Ucbo-TJSw-tS4y-AwKT-xdql-NiMp-YvZC1S on /dev/sdfj2 was already found on /dev/sddi2.
    WARNING: PV H7Ucbo-TJSw-tS4y-AwKT-xdql-NiMp-YvZC1S on /dev/sdg2 was already found on /dev/sddi2.
    WARNING: PV tIvQUe-wsuE-RWlZ-Wmdo-uzws-qL5H-Y9zW5l on /dev/sdbc2 was already found on /dev/sdfe2.
    WARNING: PV 3zsO6H-QCQq-eyJZ-8aLc-TGU1-q91J-LFWsKs on /dev/sdbf2 was already found on /dev/sdfh2.
    WARNING: PV VEyfqe-Vln5-zMp5-wCeK-hkQN-u8Wp-LkPTMF on /dev/sddb2 was already found on /dev/sdhd2.
    WARNING: PV 6ZwSAD-cFkP-Qjeg-WIDt-g3Hc-m8Tt-i3ex81 on /dev/sddr2 was already found on /dev/sdbq2.
    WARNING: PV H7Ucbo-TJSw-tS4y-AwKT-xdql-NiMp-YvZC1S on /dev/sdbh2 was already found on /dev/sddi2.
    WARNING: PV tIvQUe-wsuE-RWlZ-Wmdo-uzws-qL5H-Y9zW5l on /dev/sddd2 was already found on /dev/sdfe2.
    WARNING: PV 3zsO6H-QCQq-eyJZ-8aLc-TGU1-q91J-LFWsKs on /dev/sddg2 was already found on /dev/sdfh2.
    WARNING: PV VEyfqe-Vln5-zMp5-wCeK-hkQN-u8Wp-LkPTMF on /dev/sdfc2 was already found on /dev/sdhd2.
    WARNING: PV 6ZwSAD-cFkP-Qjeg-WIDt-g3Hc-m8Tt-i3ex81 on /dev/sdfs2 was already found on /dev/sdbq2.
    WARNING: PV 6ZwSAD-cFkP-Qjeg-WIDt-g3Hc-m8Tt-i3ex81 on /dev/sdp2 was already found on /dev/sdbq2.
    WARNING: PV tIvQUe-wsuE-RWlZ-Wmdo-uzws-qL5H-Y9zW5l prefers device /dev/sdfe2 because device was seen first.
    WARNING: PV tIvQUe-wsuE-RWlZ-Wmdo-uzws-qL5H-Y9zW5l prefers device /dev/sdfe2 because device was seen first.
    WARNING: PV tIvQUe-wsuE-RWlZ-Wmdo-uzws-qL5H-Y9zW5l prefers device /dev/sdfe2 because device was seen first.
    WARNING: PV 3zsO6H-QCQq-eyJZ-8aLc-TGU1-q91J-LFWsKs prefers device /dev/sdfh2 because device was seen first.
    WARNING: PV 3zsO6H-QCQq-eyJZ-8aLc-TGU1-q91J-LFWsKs prefers device /dev/sdfh2 because device was seen first.
    WARNING: PV 3zsO6H-QCQq-eyJZ-8aLc-TGU1-q91J-LFWsKs prefers device /dev/sdfh2 because device was seen first.
    WARNING: PV VEyfqe-Vln5-zMp5-wCeK-hkQN-u8Wp-LkPTMF prefers device /dev/sdhd2 because device was seen first.
    WARNING: PV VEyfqe-Vln5-zMp5-wCeK-hkQN-u8Wp-LkPTMF prefers device /dev/sdhd2 because device was seen first.
    WARNING: PV VEyfqe-Vln5-zMp5-wCeK-hkQN-u8Wp-LkPTMF prefers device /dev/sdhd2 because device was seen first.
    WARNING: PV H7Ucbo-TJSw-tS4y-AwKT-xdql-NiMp-YvZC1S prefers device /dev/sddi2 because device was seen first.
    WARNING: PV H7Ucbo-TJSw-tS4y-AwKT-xdql-NiMp-YvZC1S prefers device /dev/sddi2 because device was seen first.
    WARNING: PV H7Ucbo-TJSw-tS4y-AwKT-xdql-NiMp-YvZC1S prefers device /dev/sddi2 because device was seen first.
    WARNING: PV 6ZwSAD-cFkP-Qjeg-WIDt-g3Hc-m8Tt-i3ex81 prefers device /dev/sdbq2 because device was seen first.
    WARNING: PV 6ZwSAD-cFkP-Qjeg-WIDt-g3Hc-m8Tt-i3ex81 prefers device /dev/sdbq2 because device was seen first.
    WARNING: PV 6ZwSAD-cFkP-Qjeg-WIDt-g3Hc-m8Tt-i3ex81 prefers device /dev/sdbq2 because device was seen first.
    Cannot activate LVs in VG zkvm4 while PVs appear on duplicate devices.
    0 logical volume(s) in volume group "zkvm4" now active
    zkvm4: autoactivation failed.
    Cannot activate LVs in VG zkvm1 while PVs appear on duplicate devices.
    0 logical volume(s) in volume group "zkvm1" now active
    zkvm1: autoactivation failed.
    Cannot activate LVs in VG Z_APPL_ROOT_lvm_473D86E3 while PVs appear on duplicate devices.
    0 logical volume(s) in volume group "Z_APPL_ROOT_lvm_473D86E3" now active
    Z_APPL_ROOT_lvm_473D86E3: autoactivation failed.
    Cannot activate LVs in VG Z_APPL_ROOT_lvm_BBD0E8D4 while PVs appear on duplicate devices.
    0 logical volume(s) in volume group "Z_APPL_ROOT_lvm_BBD0E8D4" now active
    Z_APPL_ROOT_lvm_BBD0E8D4: autoactivation failed.
    Cannot activate LVs in VG Z_APPL_ROOT_lvm_382F5B8E while PVs appear on duplicate devices.
    0 logical volume(s) in volume group "Z_APPL_ROOT_lvm_382F5B8E" now active
    Z_APPL_ROOT_lvm_382F5B8E: autoactivation failed.
  root at node3:~# echo $?
  5

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