xenadmin/XenAdmin/Wizards/RollingUpgradeWizard/PlanActions/UpgradeManualHostPlanAction.cs
Konstantina Chremmou 4b6e826ed3 CA-284125: Prioritise a pending host restart over a mandatory toolstack restart.
For this purpose, the evacuate-reboot-bringbabiesback triplet was replaced by a
new RestartHostPlanAction, which allows fallback to toolstack restart if live
patching has succeeded. Also, created new abstract class HostPlanAction to
reduce code duplication.

Signed-off-by: Konstantina Chremmou <konstantina.chremmou@citrix.com>
2018-03-06 15:12:04 +00:00

107 lines
3.9 KiB
C#

/* Copyright (c) Citrix Systems, Inc.
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using XenAPI;
using System;
using System.Timers;
using XenAdmin.Wizards.PatchingWizard.PlanActions;
using Timer = System.Timers.Timer;
namespace XenAdmin.Wizards.RollingUpgradeWizard.PlanActions
{
public class UpgradeManualHostPlanAction : RebootPlanAction
{
public Timer timer = new Timer();
public UpgradeManualHostPlanAction(Host host)
: base(host, string.Format(Messages.UPGRADING_SERVER, host))
{
TitlePlan = Messages.UPGRADING;
timer.Interval = 20 * 60000;
timer.AutoReset = true;
timer.Elapsed += timer_Elapsed;
}
void timer_Elapsed(object sender, ElapsedEventArgs e)
{
if (rebooting && Timeout != null)
{
Timeout(this, null);
}
}
public event EventHandler Timeout;
private bool rebooting = false;
protected override void RunWithSession(ref Session session)
{
try
{
var hostObj = GetResolvedHost();
if (hostObj.enabled)
{
Status = Messages.PLAN_ACTION_STATUS_DISABLING_HOST_SERVER;
log.DebugFormat("Disabling host {0}", hostObj.Name());
Host.disable(session, HostXenRef.opaque_ref);
}
timer.Start();
rebooting = true;
log.DebugFormat("Upgrading host {0}", hostObj.Name());
Status = Messages.PLAN_ACTION_STATUS_INSTALLING_XENSERVER;
log.DebugFormat("Waiting for host {0} to reboot", hostObj.Name());
WaitForReboot(ref session, Host.BootTime, s => Host.async_reboot(s, HostXenRef.opaque_ref));
Status = Messages.PLAN_ACTION_STATUS_RECONNECTING_STORAGE;
foreach (var host in Connection.Cache.Hosts)
host.CheckAndPlugPBDs(); // Wait for PBDs to become plugged on all hosts
rebooting = false;
log.DebugFormat("Host {0} rebooted", hostObj.Name());
Status = Messages.PLAN_ACTION_STATUS_HOST_UPGRADED;
log.DebugFormat("Upgraded host {0}", hostObj.Name());
}
finally
{
Connection.ExpectDisruption = false;
timer.Stop();
}
}
}
}