[ovirt-users] node-ng update failed from ovirt-node-ng-4.1.0-0 to ovirt-node-ng-image-4.1.0-1, and NM + iscsi boo issue

[Sergey Kulikov]

1) I've updated from 4.0.6 to 4.1.0 (on Feb 01 node-ng was at version 4.1.0-0)
After some time engine alerted, that this node have updates to ovirt-node-ng-image-4.1.0-1,
but update from engine timed out, there were hanging processes in ps on this node:

root     36309  0.0  0.0 113120  1564 ?        Ss   19:04   0:00 bash -c umask 0077; MYTMP="$(TMPDIR="${OVIRT_TMPDIR}" mktemp -d -t ovirt-XXXXXXXXXX)"; trap "chmod -R u+rwX \"${MYTMP}\" > /dev/null 2>&1; rm -fr \"${MYTMP}\" > /dev/null 2>&1" 0; tar --warning=no-timestamp -C "${MYTMP}" -x &&  "${MYTMP}"/ovirt-host-mgmt DIALOG/dialect=str:machine DIALOG/customization=bool:True
root     36339  0.2  0.0 496700 94208 ?        S    19:04   0:21 /bin/python /tmp/ovirt-GCmVusccfe/pythonlib/otopi/__main__.py "BASE/pluginPath=str:/tmp/ovirt-GCmVusccfe/otopi-plugins"  APPEND:BASE/pluginGroups=str:ovirt-host-common:ovirt-host-mgmt DIALOG/dialect=str:machine DIALOG/customization=bool:True
root     37498  0.0  0.0 113124  1452 ?        S    19:09   0:00 /bin/sh /var/tmp/rpm-tmp.4UqJ4e 1
root     37560  0.0  0.0      0     0 ?        S<   21:42   0:00 [kworker/21:2H]
root     37626  0.0  0.0 174516  5996 ?        S    19:09   0:00 rpm -Uvh --quiet --justdb /usr/share/imgbased/ovirt-node-ng-image-update-4.1.0-1.el7.centos.noarch.rpm

they were hanging forever, I ended up with rebooting the node, no errors in log, it was just hanging at:

2017-02-03 19:09:16 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:SEND       ***CONFIRM GPG_KEY Confirm use of GPG Key userid=oVirt <infra at ovirt.org> hexkeyid=FE590CB7
2017-02-03 19:09:16 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:SEND       ###
2017-02-03 19:09:16 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:SEND       ### Please confirm 'GPG_KEY' Confirm use of GPG Key userid=oVirt <infra at ovirt.org> hexkeyid=FE590CB7
2017-02-03 19:09:16 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:SEND       ### Response is CONFIRM GPG_KEY=yes|no or ABORT GPG_KEY
2017-02-03 19:09:16 DEBUG otopi.plugins.otopi.dialog.machine dialog.__logString:204 DIALOG:RECEIVE    CONFIRM GPG_KEY=yes
2017-02-03 19:09:16 INFO otopi.plugins.otopi.packagers.yumpackager yumpackager.info:80 Yum Status: Running Test Transaction
Running Transaction Check
2017-02-03 19:09:16 INFO otopi.plugins.otopi.packagers.yumpackager yumpackager.info:80 Yum Status: Running Transaction
2017-02-03 19:09:16 INFO otopi.plugins.otopi.packagers.yumpackager yumpackager.info:80 Yum install: 1/2: ovirt-node-ng-image-4.1.0-1.el7.centos.noarch
2017-02-03 19:09:20 DEBUG otopi.plugins.otopi.packagers.yumpackager yumpackager.verbose:76 Yum Done: ovirt-node-ng-image-4.1.0-1.el7.centos.noarch
2017-02-03 19:09:20 INFO otopi.plugins.otopi.packagers.yumpackager yumpackager.info:80 Yum install: 2/2: ovirt-node-ng-image-update-4.1.0-1.el7.centos.noarch

now my node have this layout:
# imgbase layout
ovirt-node-ng-4.1.0-0.20170201.0
 +- ovirt-node-ng-4.1.0-0.20170201.0+1
(so update failed)
but 4.1.0-1 rpms are marked as "installed" and yum can't find any updates, can I rollback to base layout without installed  4.1.0-1 rms ?
imgbase rollback needs at least 2 layers over base.

Or maybe the only way is to reinstall this node?

2) And another question, how can I disable NetworkManger permanently, or exclude some interfaces permanently?
I've tried to disable NetworkManger by systemctl, but after update from 4.0 to 4.1 it was re-enabled(so it's not persistent between updates).
I've an issue with iscsi root and enabled NetworkManger, because NM tries to bring down\up my iscsi interfaces on boot, and sometimes FS remounting RO
because of IO errors, I can't put NM_CONTROLLED=no in ifcfg, because ifcfg is generated by dracut at every boot.


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