Symptoms:
- Upgrade of ESXI hosts on VI domains via VUM bundle failed with "Failure during VUM remediation" error.
- Entries similar to the below are seen on the vCenter Server in/var/log/vmware/vmware-updatemgr/vum-server/vmware-vum-server-log4cpp.log:
[2020-08-26 10:36:03:855 'SingleHostRemediate' 140481384240896 ERROR] [hostUpdateBase, 790] VimFault: Another task is already in progress.
[2020-08-26 10:36:03:858 'SingleHostRemediate' 140481384240896 ERROR] [hostUpdateBase, 790] [backtrace begin] product: VMware Update Manager, version: 7.0.1, build: build-16617338, tag: vmware-vum-server, cpu: x86_64, os: linux, buildType: release backtrace[00] libvmacore.so[0x002EAE12] backtrace[01] libvmacore.so[0x0019D949]: Vmacore::System::Stacktrace::CaptureFullWork(unsigned int) backtrace[02] libvmacore.so[0x0018F573]: Vmacore::System::SystemFactory::CreateBacktrace(Vmacore::Ref<Vmacore::System::Backtrace>&) backtrace[03] libvci-vcIntegrity.so[0x007505EB]: Integrity::HostUpdate::HostUpdateBase::WaitTaskCompletion(Vmacore::Ref<Vmomi::Any>&) backtrace[04] libvci-vcIntegrity.so[0x00768132]: Integrity::HostUpdate::RemediateHost::InstallUpdateV2(std::vector<std::string, std::allocator<std::string> >, std::vector<std::string, std::allocator<std::string> >&, int, int, bool, std::string&) backtrace[05] libvci-vcIntegrity.so[0x0081C1C0]: Integrity::HostUpdate20::InstallerImpl::Install20(std::string const&, std::vector<std::string, std::allocator<std::string> >&, std::vector<std::string, std::allocator<std::string> >&, std::string&) backtrace[06] libvci-vcIntegrity.so[0x007CB843]: Integrity::HostUpdate20::Installer20::Install(std::vector<std::string, std::allocator<std::string> >&, std::string&) backtrace[07] libvci-vcIntegrity.so[0x007BCC5A]: Integrity::HostUpdate20::InstallController::InstallUpdate(std::vector<std::string, std::allocator<std::string> >&, bool, std::string&) backtrace[08] libvci-vcIntegrity.so[0x007C2AC4]: Integrity::HostUpdate20::InstallController::Install(std::vector<std::string, std::allocator<std::string> >&) backtrace[09] libvci-vcIntegrity.so[0x00416BE4]: Integrity::SingleHostRemediateTask::RemediateSingleHostV2(Vmacore::Ref<Vmomi::MoRef>) backtrace[10] libvci-vcIntegrity.so[0x004177F1]: Integrity::SingleHostRemediateTask::DoRun() backtrace[11] libvci-vcIntegrity.so[0x0035E10C]: Integrity::VciTaskBase::Run() backtrace[12] libvmacore.so[0x0022B102] backtrace[13] libvmacore.so[0x00230760] backtrace[14] libvmacore.so[0x002A9A28] backtrace[15] libpthread.so.0[0x00007F87] backtrace[16] libc.so.6[0x000F35BF] backtrace[17] (no module) [backtrace end]