IJ25906: CES IP ADDRESS UNABLE TO BE ASSIGNED AFTER CODE UPGRADE TO 5.0.5

APAR status

• Closed as program error.

Error description

• ces ip address assignment fails when dev name length
  longer than 16 chars.
  
  Reported in:
  Spectrum Scale 5.0.5.0 and operating system RHEL 7.7.
  
  Known Impact:
  CES service outage
  

Local fix

• Manually remove 'label' in ip assign cmdline in
  mmcesfunction.sh:
  
  # works for ipv4 and ipv6
  cesLogAndRunExtendedIpMgmt "enableIP" "$ip_cmd a add
  $ipAddress/$prefix dev $ifName label $ifName
  
  The 'label' attr is for ipv6 and should not effect ipv4
  network
  
  To fix this issue, the label attr will be removed.
  

Problem summary

• After an upgrade from 5.0.4.3 to 5.0.5.0,
  none of the ces ip can be assigned.
  

Problem conclusion

• Benefits of the solution:
  CES IP addresses can now be assigned.
  
  Work around:
  None
  
  Problem trigger:
  In 5.0.4.3:
  2020-04-10_20:44:52.462-0400: [I] mmcesop:
  run: /usr/sbin/ip a add 192.168.100.254/24
  dev enp11s0f1.2500:0
  rc=0
  In 5.0.5.0:
  2020-06-09_17:36:34.014-0400: [I] mmcesop:
  run: /usr/sbin/ip a add 192.168.100.254/24
  dev enp11s0f1.2500:0 label enp11s0f1.2500:0
  RTNETLINK answers: Numerical
  result out of range rc=2
  
  Symptom:
  Hang of ?mmces address add?.
  Other internal CES IP processing could also hang.
  
  Platforms affected:
  ALL Linux OS environments (CES nodes)
  
  Functional Area affected:
  CES
  
  Customer Impact:
  Critical
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  SPEC SCALE STD

• Fixed component ID

  5737F33AP

Applicable component levels