xenadmin/XenAdmin/Diagnostics/Checks/DiskSpaceForBatchUpdatesCheck.cs
Mihaela Stoica 121bce92af CP-28282: Correction to the required disk space calculation
- also renamed a variable and updated the problem description to include the server name

Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
2018-06-15 14:24:29 +01:00

126 lines
5.5 KiB
C#

/* Copyright (c) Citrix Systems, Inc.
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using XenAPI;
using XenAdmin.Diagnostics.Problems;
using XenAdmin.Core;
using System.IO;
using XenAdmin.Diagnostics.Problems.HostProblem;
using System.Collections.Generic;
using XenAdmin.Actions;
using System.Linq;
namespace XenAdmin.Diagnostics.Checks
{
class DiskSpaceForAutomatedUpdatesCheck : Check
{
private readonly Dictionary<Host, List<XenServerPatch>> updateSequence;
public DiskSpaceForAutomatedUpdatesCheck(Host host, Dictionary<Host, List<XenServerPatch>> updateSequence)
: base(host)
{
this.updateSequence = updateSequence;
}
protected override Problem RunCheck()
{
if (!Host.IsLive())
return new HostNotLiveWarning(this, Host);
if (!Host.Connection.IsConnected)
throw new EndOfStreamException(Helpers.GetName(Host.Connection));
if (!Helpers.CreamOrGreater(Host.Connection))
return null;
var elyOrGreater = Helpers.ElyOrGreater(Host.Connection);
// check the disk space on host
var requiredDiskSpace = elyOrGreater
? updateSequence[Host].Sum(p => p.InstallationSize) // all updates on this host (for installation)
: Host.IsMaster()
? updateSequence[Host].Sum(p => p.InstallationSize) + updateSequence.Values.SelectMany(p => p).Distinct().Sum(p => p.InstallationSize) // master: all updates on master (for installation) + all updates in pool (for upload)
: updateSequence[Host].Sum(p => p.InstallationSize) * 2; // non-master: all updates on this host x 2 (for installation + upload)
var action = new GetDiskSpaceRequirementsAction(Host, requiredDiskSpace, true, DiskSpaceRequirements.OperationTypes.automatedUpdates);
try
{
action.RunExternal(action.Session);
}
catch
{
log.WarnFormat("Could not get disk space requirements");
}
if (action.Succeeded && action.DiskSpaceRequirements.AvailableDiskSpace < requiredDiskSpace)
return new HostOutOfSpaceProblem(this, Host, action.DiskSpaceRequirements);
// check the disk space for uploading the update files to the pool's SRs (only needs to be done once, so only run this on master)
if (elyOrGreater && Host.IsMaster())
{
var allPatches = updateSequence.Values.SelectMany(p => p).Distinct().ToList();
var maxFileSize = allPatches.Max(p => p.DownloadSize);
var availableSRs = Host.Connection.Cache.SRs.Where(sr => sr.SupportsVdiCreate() && !sr.IsDetached()).ToList();
var maxSrSize = availableSRs.Max(sr => sr.FreeSpace());
// can accomodate the largest file?
if (maxSrSize < maxFileSize)
{
return new HostOutOfSpaceProblem(this, Host,
new DiskSpaceRequirements(DiskSpaceRequirements.OperationTypes.automatedUpdatesUploadOne, Host, null, maxFileSize, maxSrSize, 0));
}
// can accomodate all files?
var totalFileSize = allPatches.Sum(p => p.DownloadSize);
var totalAvailableSpace = availableSRs.Sum(sr => sr.FreeSpace());
if (totalAvailableSpace < totalFileSize)
{
return new HostOutOfSpaceProblem(this, Host,
new DiskSpaceRequirements(DiskSpaceRequirements.OperationTypes.automatedUpdatesUploadAll, Host, null, totalFileSize, totalAvailableSpace, 0));
}
}
return null;
}
public override string Description
{
get { return Messages.SERVER_SIDE_CHECK_AUTO_MODE_DESCRIPTION; }
}
private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
}
}