Changes as discussed on the ticket: No longer disable the rows when they have a warning in the dialog, support warning about storage configuration as well as PVS configuration, and also include these warnings in the PVS page table.
A site's configuration needs to be completed outside of XenCenter, and when it isn't done we shouldn't allow VMs to enable PVS read caching on that site. We now disable sites that aren't configured in the enable read caching dialog, using an EnableableComboBox. I've also changed the DrawMode of that ComboBox component, OwnerDrawFixed more appropriately sizes the dropdown container when the number of items is small.
quiesce after installing vss tools
Enabling snapshot policy type to be changed to quiesce from
other snapshot policy types if the selected VMs are
quiesce snapshot capable.
Signed-off-by: Sharath Babu <sharath.babu@citrix.com>
The Pool_update does not always covers all the VDIs XenCenter creates. These orphaned ones have to be deleted as well.
Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
Moved to A for Dismiss All, and E for Dismiss Selected. Since this frees D (the toolstrip menu split button uses one of these, so was previously always D), moved Filter by Date from A to D.
For ISO updates, when disabling hosts, use the filename matching logic for pre-Ely hosts as well.
Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
Modify the cleanup pool update action to also call update destroy (removing the update from xapi db) when the update has not been applied to any hosts (ie we cancelled the wizard before completion).
This happened because the LivePatchCodesByHost was null when the prechecks were generated for an update, so the live patch codes returned by the precheck were ignored.
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
on a background thread and show a spinner while this process is going on. Also,
removed certain duplicate controls and made some minor layout changes (margins,
sizes, column widths).
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
on a background thread and show a spinner while this is going on. Also: run this
check only the first time the page is loaded; some refactoring, namely simplified
the code scanning for SRs by reducing the number of things each method does;
fixed column widths; removed unused property.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
Due to the tooltip container introduced for the automatic radio button, winforms didn't treat these radio buttons properly - we needed code to make them mutually exclusive, tab didn't behave properly and keyboard arrow navigation between them didn't work. Therefore I have removed the tooltip container (so our radio buttons behave properly without any extra work) and we instead use a winforms tooltip shown when the mouse is over the automatic radio button. Note that since the control is disabled when we want a tooltip, neither hover events nor attaching a winforms tooltip in the usual way will work. Therefore I use a mousemove event on the table, which displays the tooltip if and only if we are over the disabled control. Also adjusted the tab indexes to make sure tab works correctly across the whole page.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
The resume on server uses the CrossPoolMigrateCommand to implement the migration of the VM to the desired host. Before this change that command had no support for resuming a VM after migrating it, so the VM was not resumed. With this change, the CrossPoolMigrateWizard can take an optional (default false) parameter to restart the VM after migration. When this is true, the migrate action becomes a MultipleAction, first migrating and then restarting the VM.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
Also changed the page to use different resource strings for the Storage type in the right hand panel (no hotkeys should be shown there)
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
Instead of using VCPUs_max, use VCPUs_at_startup, which is the value set when we change the VCPUs count on the VM. Note that despite its name we don't need to restart to see this value change.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
I've looked at how this was implemented in Dundee, and there we used an absolute height on the row containing the manual checkbox. I've done the same here, changing row 3 from autosize to absoliute 47px. I've also removed the empty row that was between the two radio buttons. This is a Winforms problem, without workarounds an autosize radio button in an autosize container (say the table row) will report its height as one row of text, no matter whether it needs more. This seems to be the only place we use a long radio label (as opposed to a separate label underneath the radio), so I doubt it's worth doing anything more complex than this. I've tested it with the CN string used in the ticket, and it uses less space than the English translation. The string also hasn't changed from Dundee.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
- show a different message when deleting a Cache Configuration (a PVS_site object) that is actively in use by a PVS site
- some more text changes on the "Configure PVS Cache" dialog
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
If windows_update is in the hidden features registry key, then we hide the virtualization state line about Windows update.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
The reported bug was that the new VM would crash because when clicking through the wizard the pool master is selected by default, not the slave the VM snapshot is on. We already select a default host when a new VM is created from a selected host using HostAncestor, but this property is null for a template (which isn't in the server/VM tree). The fix is that if the selection is a template (which it is when we use new VM from Snapshot) then we instead use its host (using Home()) as the default host. Now the correct host is selected in the VM wizard and the VM creation succeeds.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
The problem here was that TimeSpan.Minutes is always below 60, eg. for 67 minutes it is 7 (with TimeSpan.Hours being 1 then). So our TimeSpan was correct, but if it was between 1 and 2 hours then we would write the minutes in the second hour (which is below 60), ignoring the hour. The fix is to use s.TotalMinutes which for 67 minutes is 67. Hours also had a similar issue, except it would be off by 24 hours for spans between 1 and 2 days.
On the General tab XenCenter shows a list of updates that requires the host to be restarted. This is shown for applied updates for which the required guidance hasn't been done (eg. restartHost or restartAgent after-apply-guidances)
This commit fixes a regression that caused restartToolstack warnings to be not shown in the list of warnings.
The displayed messages are also improved, XenCenter will show Toolstack restart or host restart appropriately and not just restart only as it used to.
Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
We now enumerate pre-Creedence and pre-Clearwater servers once, and check hosts only in those lists for the checks that only apply to those servers.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
Moved from BuildList method to the GraphHelpers class. Since they're only used in this class for this search, and there's similar but broader Regex objects in the Helpers class that are used for parsing, I think it's better to keep them in this class to avoid confusion.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
This avoids unnecessary checks where we are upgrading multiple pools from different versions. Also made the same change for the unrelated pre-Clearwater only checks which had the same issue.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
We now only include the StorageLink check if we have any hosts earlier than Creedence in the RPU.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
We have some new RRDs - read, write, read_latency and write_latency. This adds support for them by adding a friendly name and using it to display them. It also adds some filtering (see GraphHelpers.cs) because for backward compatibility io_throughput_read and io_throughput_write (which differ from read and write only in scale) are still available, but shouldn't be displayed in XC. If the new read or write are available, we filter these old datasources out.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
TickUntilCompletion() is now a static method and again takes an ApplianceAction parameter. It does a null check on each while iteration to handle the case where another thread nulls the action. Also added Run() method to ApplianceAction which initialises the ticker (now a private method), and let child classes call Run() instead.
For other actions we get a ticking timer in the Events view because they use PollToCompletion, which calls their Changed event every 900ms. These actions don't use PollToCompletion, and didn't regularly call their Changed event - so their timer didn't tick regularly. This change adds a lightweight mechanism to call their changed event every 900ms until they complete. This allows the events page timer to tick every second in the same way as it does for other actions.
- on certain occasions retrieving datasources can be slow; show a spinner while in progress.
- on certain systems the list of datasources may be long; added search box to aid the user filter them by name.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
- added a new precheck, called "Live patching status" which checks is a reboot is needed for each host. If reboot is needed, the check will display a warning, otherwise it will show a green tickbox, saying that the server does not need to be rebooted, and if live patching is used, this information will be included as well.
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
Instead we use the vbd.allowed_operations list, and check for the plug/unplug operation respectively.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
- take the already assigned dom0 memory into account when calculating maximum memory available
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
- Correction in the text on the PVS Cache configuration page
- Added help IDs for all new dialogs and the PVS tab
- Help button on the Enable PVS read caching dialog, plus some adjustments in the controls sizes on this dialog
- Removed minimize and maximize buttons from the PVS servers dialog, and added the help button
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
- Renamed Add/Remove PVS Site buttons
- Added a note on the PVS Cache configuration page, regarding the recommended cache size and the allowed size for "memory only"
- Added a warning about the Site configuration not being complete until the PVS part is done as well (only visible if PVS_uuid is not set for a PVS_site)
- Added PVS Read Caching status on the VM's general tab
- The absolute maximum allowed for a cache size is 2TB
- Changed the rubric on the Enable PVS read caching dialog
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
2 new radio buttons in Connection Options page, for Basic and Digest; Digest is the default as it's the most secure.
New proxy authentication method setting, which is used to configure XenAPI's HTTP class and the .NET AuthenticationManager (which handles which authentication schemes can be used by the .NET web classes).
The new setting is also transferred and used by the Health Check service.
The bug noted in CA-214653 also occurs here, but the work-around on PR#1201 for that bug will also work for this.
Signed-off-by: Frezzle <frederico.mazzone@citrix.com>
- instead of repopulating the whole grid when a proxy or a site changes, we now refresh just the row that needs refreshing, and when the refresh is indeed needed.
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
- We shouldn't include the hidden SRs in the list of available SRs in the Migration wizard
- Updated the SR.SupportsVdiCreate function to return false for the Memory SR; this fixes other places where the Memory SR might be visible (e.g. all places where SrPicker is used)
- Also fixed the same issue in the Attach disk dialog
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
- For the PVS cache space utilization the multiplying factor should be 1 (the default value) because its values range from 0 to 100
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
- correction to the previous commit: only collect the IP addreses if the PIF is connected or is null
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
- include networks without PIFs in the list of networks to test for RDP (at the end of the list)
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
removing event registration unless it's written out fully like the rest of the
autogenerated code.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
- in the ConfigurePvsSiteAction, we now check if a site still exists, before trying to configure it
- added a CollectionChanged event handler in the Cache configuration dialog, and if we observe that a site has been added, we add it to the dialog as a new page
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
- Removed the cache configuration gridview from the PVS tab. This tab now contains the button to configure PVS cache and the VMs grid
- Show the confirmation dialog even when deleting a new site
- Enabled the "View PVS servers" button only if the site has servers
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
Using new XAPI functionality in Install Update Wizard required by the new packaging format (ISO updates)
Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
- If the PVS site cannot be removed (it has running proxies) then popup a dialog stating the reason, instead of starting the action and failing there. We still have the same check in the action, just in case the situation changed in the meantime.
- Removed unused controls
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
is possible, because what it actually does is move. When asserting migration use
an SR other than the VDI's current SR for the check to ensure that both source and
target SRs are checked to see whether they support migration. Also, use the VM's
Home() instead of resident_on to ensure the current server cannot be selected as
target server. Some refactoring.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
because the differentiation was in the filters, which can be passed in as parameters
to the base class, and other than this they were only adding complexity.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
PVS Tab:
- Move the "View PVS sites" button inside the "Configure PVS Cache" dialog (next to Remove button) and make it per-site (showing only the PVS servers from that site)
- Remove "Currently attached" column from the VMs section
- Rename "Status" column to "Read caching status"
Configure PVS Cache" dialog:
- Make sure there is a scrollbar to accommodate all hosts in a pool
- Add a confirmation dialog when a site is removed. The action is executed when the Remove button is pressed.
- When Memory SR is selected, set the maximum value to the dom0-extra-memory..
- Allow empty configuration (but see next point): The OK button should only be disabled if the PVS site name is empty
- Add an extra option in the "Cache storage" combobox, with text "Not configured", selected by default on a new site. When this is selected, we will remove the existing entry in pvs_cache_storage and will not create a new one.
- When a PVS site is deleted (forgotten), we first delete all the associated PVS_servers, otherwise the site cannot be deleted.
as move (halted) or migrate (suspended) destination; this was caused by using the
VM's resident_on instead of Home() host. Also, changed the disabled reason to be
a bit more generic and cover cases other than migration.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
- the image for resume suspended VM on non-home server should be connected-server,
not vm-being-migrated.
- the image for a server where a running VM cannot be migrated to should be connected-server,
not disconnected-server (it is disabled anyway). Also, simplified the logic to obtain
the cannot-execute-reasons.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
before move; thus, if the SR does not support migration, the user can at least
detach the disk and try a move.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
home host from a shared to a local storage (while it was possible from the CLI).
Minor refactoring.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
- Allow move of multiple VDIs
- CA-187659: show better messages when batching move/migration of multiple VDIs.
- Show different tooltips for single vs. multiple VDI move/migration/deletion.
- Refactored the MoveDiskDdialog. Removed the inherited class VDIMigrateDialog and
the batching manager as it was not very different from its parent, it was registering
the events twice, and was batching migration of even single VDIs.
- Tidied up the Move- and MigrateVirtualDisk commands so they're easier to compare.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
- Was only able to move and not migrate vdi if selected from the objects view.
- The text on the ToolStripMenuItems on the SrStoragePage was different from the
corresponding buttons.
- Added item move/migrate to the multiple VDI context menu. The Properties item
should not be shown in this case.
- new image for PVS_site
- added cache size restrictions based on the SR selected
- added button to remove the PVS site on the page
- fixed the error where the subtext for a new PVS sites showed as "Not configured" even after it has been configured
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
Replace PATCH_PRECHECK_LIVEPATCH_MISSING to PATCH_PRECHECK_LIVEPATCH_NOT_APPLICABLE due to changes in XAPI
Note: if XAPI change gets active before this change we will see UNKNOWN instead of PATCH_PRECHECK_LIVEPATCH_NOT_APPLICABLE in XenCenter what will make no difference
* CP-16922: UI changes to PvsPage to replace the single configure button with a separate enable and disable one, per the design doc
* CP-16922: Intermediate checkin - command + dialog implemented, but PVS page has some layout problems.
* CP-16922: Implement GUI for enabling PVS read caching and marking/unmarking VMs for prepopulation
Fix the broken layout by reverting MainWindow.resx (which shouldn't have changed) back to the previous commit. Also removed duplicate properties button code.
* CP-16922: PVS Page changes, to properly display all VMs (not just ones with proxy), only populating proxy columns if there is a proxy set.
* CP-16922: Use a CommandButton for the enable button, connected to the same command as the VM main menu button, and using the table selection as its selection manager.
* CP-16922: Delete the old enable button click behaviour (because it now has a proper command), was causing the dialog to show up twice
* CP-16922: Properly list VMs by hiding those that should be hidden (in addition to non-VMs, also hide the __gui__ prefix and others covered by Show function). Also fixes a bug in NewVMGroupVMsPage discovered when fixing this - it would show VMs that should be hidden if you used the search bar.
* CP-16922: Use ButtonText on the Command to set the text on the PVS enable button
* CP-16922: Add the disable PVS read-caching command, and its associated proxy destroy action. Both based off enable equivalents (main difference is no dialog for now). Not used yet but will be in main window menu + disable button
* CP-16922: Add disable PVS read-caching to the main window menu (under enable), with the disable command attached to it
* CP-16922: Add support for disabling PVS read-caching for selected hosts via the PVS tab page by converting the disable button into a CommandButton in the same way as the enable button, using its own command + selection manager (because Selection Managers only bind to one control)
* CP-16922: Design - adding the "read caching enabled" column from the design, so that we display both whether caching is enabled and whether the VM is currently cached. If it's disabled all other values are missing.
* CP-16922: Add the PVS site column per the design to show the site a VM's PVS Proxy is on if it has a proxy
* CP-16922: Add an event handler for VMs changing so that newly provisioned VMs immediately show up in the PVS tab page
* CP-16922: Support for properly remembering the selection when the VM list is refreshed. A new method returns the list of VMs for the selected rows, and we can then check if the VM for the row being added is in this list. If there was no previous selection then we still select the first row by default.
* CP-16922: Remove prepopulate, which is being removed from the design. The next XAPI version will remove it, so just pass False as prepopulate for now, and remove the option from the dialog and PVS tab page.
* CP-16922: Improve UI appearance for a missing Storage Repository. Per the design, if there is no SR show the message None (memory only) instead of an empty cell
* CP-16922: Improved sorting behaviour. All columns (except VM name, which always uses it) use the VM tag as a sorting fallback (since they all have duplicates). New default sort which sorts by caching enabled first (yes before no), and then VM tag as a tiebreaker. Support for remembering the current sort on refresh, ie when a value changes.
* CP-16922: Refactoring to use a VM extension method to get the PVSProxy (or null if none exists) for a VM. This was used in the PVS Page + commands which are now much simpler.
* CP-16922: Move where the SelectionChanged event handler is set when refreshing the PVS table, so that the command buttons are updated correctly.
* CP-16922: Improvements to PVS read-caching dialog. Set accept/cancel buttons properly + adjust tab values, so focus acts as expected
* CP-16922: Remove the images from the menu for Enable/Disable PVS read-caching, most commands in the menu don't have one
* CP-16922: Sorting out the strings for the actions + ParallelAction calls, and moving them into the resx. Also reverting wrong MainWindow.resx changes.
* CAR-2184: XAPI changes. I've made the minimal possible changes to PvsPage to ensure it compiles, but it's had a lot of feature work (CP-16922) that supersedes this, these small changes should keep that merge painless.
* CAR-2184 XAPI: Reverse the unrelated changes, only keep the PVS ones.
* CP-16922: Merge latest XAPI changes, notably changes to Pvs_site.create
* CP-16922: Change tab show/hide logic for PVS tab, show it even if there are no PVS sites.
* CP-16922: Implement GUI for enabling PVS read caching
Design changes - remove the storage repo column and replace it with status, which is populated with a friendly version of the pvs_proxy_status enum. Also populate site list using site.name_label
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
* CP-16922: Implement GUI for enabling PVS read caching
Adjusting the CanExecute of Enable PVS read-caching command to require at least one PVS site to be created. Since the PVS tab can show up without any sites, we need this because we can't create a proxy without a site.
* CP-16922: Code review changes.
Tidied up messages, and ensured actions run async properly, and without exiting before their task.
* CP-16922: Code review changes.
Update dialog resx, wider combobox on dialog, update action descriptions before setting RelatedTask, add friendly message body for PVS error notifications.
* CAR-2184: XAPI changes. I've made the minimal possible changes to PvsPage to ensure it compiles, but it's had a lot of feature work (CP-16922) that supersedes this, these small changes should keep that merge painless.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
* CAR-2184 XAPI: Reverse the unrelated changes, only keep the PVS ones.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
- The value of the spinner control is rounded to the nearest, while the minimum is rounded up and the maximum down (or, in some cases, min and max are not rounded at all).
In most cases this is fine, but if the current value (in bytes) is equal to one of these ranges, by rounding this way we might end up with a value that is outside of the control's ranges (causing ArgumentOutOfRange exception).
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
Leaving the new pool's name field empty, forcing user to enter a name before the Next button is enabled.
Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
We already renamed the column to target server, this changes the message in the case where the user doesn't choose a server on this page to also use target server.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
The bad message was in the dialog created in the BugToolWizard after selecting servers. Since this method is the only one using the ActionProgressDialog(String) constructor, I've modified that ctor to hide the subaction label - which makes sense because there is no action in that ctor (to set a subaction) and no other appropriate label.
Shorten the ellipsise to the first 40 characters instead of 45, which allows the ellipsis, quotation and question marks to fit correctly onto the line.
avoid buttons on the console tab overlapping. Removed some panels from the console
tab to reduce control nesting.
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
- show/hide the context menu items instead of creating and adding new ones each time the context menu opens
- right click menu with rescan/add was not available for empty list or when empty space was clicked
- the condition for the edit button was slightly different from the edit toolstripmenuitem
- improved button layout (part of CA-100083)
- tidied up button event handlers and renamed one or two class members
- removed unused parameter in constructor and method of VDIRow
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
- fixed issue where the context menu with add/attach items was not available
for empty list or when empty space was clicked; in the latter case I also clear
the selections
- added ability to launch the context menu by using the windows properties button
- moved context menu to the designer; changed code to show/hide the relevant menu
items instead of adding new ones each time the context menu opens
- added icon to the context menu item Properties
- fixed button layout (part of CA-100083), then removed separators between buttons
because when they wrap it looks a bit strange
- fixed some weird cross-threading exception (could not reproduce reliably)
- renamed one or two class members and tidied up the button event handlers
Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
Fixed regression caused by 5555709337.
Supplemental packs can now be installed again in automatic mode.
Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
Adjusted messages, and added a tooltip to the Automatic restart radio when it's disabled. Also now support standalone hosts in addition to pooled.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
Expose both the HIMN network and any VIFs associated with the HIMN
network using XenCenter when the "View->Show Hidden Objects" option
is displayed. However the shown HIMN should not be able to autoplug,
edit or delete.
Changed the ellipsise length from 45 to 90 characters. This means that the first row of text becomes variable length, so I've reworked the dialog to support this and work like others: icon/rows of text in table cells, right aligned flow panel for buttons.
Signed-off-by: Callum McIntyre <callumiandavid.mcintyre@citrix.com>
- When building the list of servers that require post-install actions, ignore the ones where the patch has already been installed.
- Also fixing the infinite recursion in Build() method (causing StackOverflowException when installing a supplemental pack).
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
This fixes the NullReferenceException that occurs when trying to evacuate a host after a non-livepatch update (that requires reboot) has been installed
Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
