Skip to main content

After Upgrading or Installing vCenter Server U3b or vCenter Server 7.0, lsassd Frequently Core Dumps and Users Fail to Login with Invalid Credentials

 

Symptoms
Logging in fails for users with invalid credentials.  

/var/log/messages shows the following errors for offline domains:
 
2020-01-07T11:08:52.272792+00:00 vCenterFQDN lsassd[48897]: 0x7f3dd0fcb700:Domain 'DomainFQDN' is now offline
2020-01-07T11:08:52.273091+00:00 vCenterFQDN lsassd[48897]: 0x7f3dd0fcb700:Detected domain 'DomainFQDN' offline. Some group information from this domain might be missing.

/var/log/messages shows the following errors indicating lsassd has crashed:
2020-01-07T11:07:48.749200+00:00 vCenterFQDN lwsmd: Restarting dead service: lsass (attempt 1/2)
2020-01-07T11:07:48.749840+00:00 vCenterFQDN lwsmd: Starting service: lsass

/var/core directory has multiple lsassd core files. e.g. core.lsassd.1541
Cause
This issue was introduced in vCenter Server U3b (15129973) while modifying how likewise handles offline domains.  Likewise can return a partial set of group memberships or none for any user associated via group membership with a trusted domain in an offline condition.  This issue also impacts vCenter Server 7.0 GA.
Resolution
This issue is resolved in vCenter Server 6.7 U3g.  For more details please see the release notes.
This issue is resolved in vCenter Server 7.0b.  For more details please see the release notes.
Workaround
  1. Login using SSH to an impacted external PSC or embedded VCSA.
  2. Exclude offline domains by adding to DomainManagerExcludeTrustList.
/opt/likewise/bin/lwregshell set_value '[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory]' "DomainManagerExcludeTrustsList" "Offline domain FQDN" "Offline domain FQDN"

For example,

/opt/likewise/bin/lwregshell set_value '[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory]' "DomainManagerExcludeTrustsList" "NASA1.domain.cloud" "APJ1.domain.cloud"

Note: To gather domains that are offline, refer to messages in the symptoms of this KB (/var/log/messages) or run /opt/likewise/bin/lw-lsa get-status.
 
  1. Restart likewise
/opt/likewise/bin/lwsm restart lwreg
 
  1. Check if the DomainManagerExcludeTrustsList has the excluded domains added to it in the registry.
/opt/likewise/bin/lwregshell list_values '[HKEY_THIS_MACHINE\Services\lsass\Parameters\Providers\ActiveDirectory]'
 
  1. Clear the cache.
/opt/likewise/bin/lw-lsa ad-cache --delete-all
 
  1. Try to login with user that was failing.
  2. Confirm group memberships are correct.
/opt/likewise/bin/lw-lsa list-groups-for-user <username>

Comments

Post a Comment

Popular posts from this blog

Increasing the disk space for the VMware vCenter Server Appliance in vSphere 6.5, 6.7 and 7.0

  Purpose This article provides steps to increase the disk space of a specific VMDK for the vCenter Server Appliance 6.5, 6.7 and 7.0. With the introduction of Logical Volume Management (LVM) in vSphere 6.0 and continued support with vSphere 6.5, 6.7 and 7.0, the vCenter Server disks can be dynamically increased. List of VMDKs for a vCenter Server Appliance 6.5 - Size Mount point and Purpose Note : Resizing the root partition (VMDK1 listed in the KB above) is not supported on 6.5. Please see the vSphere 6.5 Release Notes for more information. Resizing root partition has been added to 6.7 and 7.0. List of VMDKs/Partitions for a vCenter Server Appliance 6.7 - Size Mount point and Purpose   List of VMDKs/Partitions for a vCenter Server 7.0 - Size Mount point and Purpose Note : This KB can be used for the situation like SEAT partition full or any other vCenter appliance partition full. ...
Post a Comment
Read more

Cloning and converting virtual machine disks with vmkfstools

 Purpose This article provides information and instructions on the use of the vmkfstools command to convert virtual machine disks from one type to another. Resolution The vmkfstools command offers the ability to clone virtual machine content and also convert from one virtual machine disk ( .vmdk ) format into another. Note : The host operating system chosen to perform the conversion may not necessarily support running of virtual machines via the output format defined. vmkfstools maintains the possibility of exporting virtual disks for use in other VMware products which support alternative disk formats. To convert a virtual machine disk from one type to another: Shut down the virtual machine. Virtual machine disk files are locked while in-use by a running virtual machine. Log in to the VMware vSphere Management Assistant (v...
Post a Comment
Read more

Investigating virtual machine file locks on ESXi

      Details Adding an existing virtual machine disk (VMDK) to a virtual machine that is already powered on fails.                 Failed to add disk scsi0:1. Failed to power on scsi0:1   Powering on the virtual machine results in the power on task remaining at 95% indefinitely. Cannot power on the virtual machine after deploying it from a template. Powering on a virtual machine fails with an error: Unable to open Swap File Unable to access a file since it is locked Unable to access a file <filename> since it is locked Unable to access Virtual machine configuration In the /var/log/vmkernel log file, you see entries similar to: WARNING: World: VM xxxx: xxx: Failed to open swap file <path>: Lock was not free WARNING: World: VM xxxx: xxx: Failed to initialize swap file <path>   When opening a console to the virtual machine, you may receive ...
Post a Comment
Read more