xenadmin/XenAdmin/Diagnostics/Checks/PrepareToUpgradeCheck.cs
Mihaela Stoica 76c806c0b3 CA-322790: Fix unhandled exception when the host cannot be reached to execute an API call.
In the CrossPoolMigrateCanMigrateFilter a WebException can be raised if the host cannot be reached to execute the API call that asserts is the VM can be migrated there. With these changes, we catch any exception (not just Failure) and mark the VM as not migratable (because we couldn't assert if it can be migrated to that host).

Also fixed other places where the same error might occur.

Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
2019-07-24 09:46:00 +01:00

78 lines
3.0 KiB
C#

/* Copyright (c) Citrix Systems, Inc.
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using System;
using System.Collections.Generic;
using XenAdmin.Core;
using XenAdmin.Diagnostics.Problems;
using XenAdmin.Diagnostics.Problems.HostProblem;
using XenAPI;
namespace XenAdmin.Diagnostics.Checks
{
class PrepareToUpgradeCheck : HostPostLivenessCheck
{
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private readonly Dictionary<string, string> installMethodConfig;
public PrepareToUpgradeCheck(Host host, Dictionary<string, string> installMethodConfig)
: base(host)
{
this.installMethodConfig = installMethodConfig;
}
public override string Description => Messages.CHECKING_PREPARE_TO_UPGRADE_DESCRIPTION;
protected override Problem RunHostCheck()
{
try
{
var result = Host.call_plugin(Host.Connection.Session, Host.opaque_ref, "prepare_host_upgrade.py", "testUrl", installMethodConfig);
if (result.ToLower() == "true")
return null;
}
catch (Exception exception)
{
var failure = exception as Failure;
if (failure?.ErrorDescription.Count == 4)
return new HostPrepareToUpgradeProblem(this, Host, failure.ErrorDescription[3]);
log.ErrorFormat("Error testing upgrade hotfix: {0}", exception);
}
return new HostPrepareToUpgradeProblem(this, Host);
}
}
}