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Stop IGridService from throwing a fatal exception when an IPEndPoint cannot be resolved, and add some handlers to deal with this cleanly; a condition was observed on OSGrid where a neighbouring region with an invalid (unresolveable) hostname would prevent a region from starting. This is bad.

avinationmerge
Tom Grimshaw 2010-05-29 01:03:59 -07:00
parent ea5bcc7b88
commit 2f409116db
8 changed files with 53 additions and 19 deletions
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17
OpenSim/Region/CoreModules/Framework/EntityTransfer/EntityTransferModule.cs
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@ -261,7 +261,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
// This may be a costly operation. The reg.ExternalEndPoint field is not a passive field,
// it's actually doing a lot of work.
IPEndPoint endPoint = finalDestination.ExternalEndPoint;
if (endPoint.Address != null)
if (endPoint != null && endPoint.Address != null)
{
// Fixing a bug where teleporting while sitting results in the avatar ending up removed from
// both regions
@ -825,16 +825,20 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
m_log.DebugFormat("[ENTITY TRANSFER MODULE]: Sending new CAPS seed url {0} to client {1}", capsPath, agent.UUID);
IEventQueue eq = agent.Scene.RequestModuleInterface<IEventQueue>();
IPEndPoint neighbourExternal = neighbourRegion.ExternalEndPoint;
if (neighbourExternal != null)
{
if (eq != null)
{
eq.CrossRegion(neighbourHandle, pos, agent.Velocity, neighbourRegion.ExternalEndPoint,
eq.CrossRegion(neighbourHandle, pos, agent.Velocity, neighbourExternal,
capsPath, agent.UUID, agent.ControllingClient.SessionId);
}
else
{
agent.ControllingClient.CrossRegion(neighbourHandle, pos, agent.Velocity, neighbourRegion.ExternalEndPoint,
agent.ControllingClient.CrossRegion(neighbourHandle, pos, agent.Velocity, neighbourExternal,
capsPath);
}
}
if (!WaitForCallback(agent.UUID))
{
@ -906,11 +910,15 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
agent.child = true;
agent.Appearance = sp.Appearance;
IPEndPoint external = region.ExternalEndPoint;
if (external != null)
{
InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
d.BeginInvoke(sp, agent, region, region.ExternalEndPoint, true,
d.BeginInvoke(sp, agent, region, external, true,
InformClientOfNeighbourCompleted,
d);
}
}
#endregion
#region Enable Child Agents
@ -1038,6 +1046,7 @@ namespace OpenSim.Region.CoreModules.Framework.EntityTransfer
InformClientOfNeighbourDelegate d = InformClientOfNeighbourAsync;
try
{
//neighbour.ExternalEndPoint may return null, which will be caught
d.BeginInvoke(sp, cagents[count], neighbour, neighbour.ExternalEndPoint, newAgent,
InformClientOfNeighbourCompleted,
d);

14
OpenSim/Services/Connectors/Hypergrid/GatekeeperServiceConnector.cs
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@ -87,7 +87,12 @@ namespace OpenSim.Services.Connectors.Hypergrid
paramList.Add(hash);
XmlRpcRequest request = new XmlRpcRequest("link_region", paramList);
string uri = "http://" + info.ExternalEndPoint.Address + ":" + info.HttpPort + "/";
IPEndPoint ext = info.ExternalEndPoint;
string uri = "";
if (ext != null)
{
uri = "http://" + ext.Address + ":" + info.HttpPort + "/";
}
//m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: Linking to " + uri);
XmlRpcResponse response = null;
try
@ -189,7 +194,12 @@ namespace OpenSim.Services.Connectors.Hypergrid
paramList.Add(hash);
XmlRpcRequest request = new XmlRpcRequest("get_region", paramList);
string uri = "http://" + gatekeeper.ExternalEndPoint.Address + ":" + gatekeeper.HttpPort + "/";
IPEndPoint ext = gatekeeper.ExternalEndPoint;
string uri = "";
if (ext != null)
{
uri = "http://" + ext.Address + ":" + gatekeeper.HttpPort + "/";
}
m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: contacting " + uri);
XmlRpcResponse response = null;
try

2
OpenSim/Services/Connectors/Land/LandServiceConnector.cs
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@ -83,6 +83,8 @@ namespace OpenSim.Services.Connectors
if (info != null) // just to be sure
{
XmlRpcRequest request = new XmlRpcRequest("land_data", paramList);
//Possible nullref from info.externalendpoint will be caught here
string uri = "http://" + info.ExternalEndPoint.Address + ":" + info.HttpPort + "/";
XmlRpcResponse response = request.Send(uri, 10000);
if (response.IsFault)

4
OpenSim/Services/Connectors/Neighbour/NeighbourServiceConnector.cs
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@ -87,7 +87,9 @@ namespace OpenSim.Services.Connectors
public bool DoHelloNeighbourCall(GridRegion region, RegionInfo thisRegion)
{
string uri = "http://" + region.ExternalEndPoint.Address + ":" + region.HttpPort + "/region/" + thisRegion.RegionID + "/";
IPEndPoint ext = region.ExternalEndPoint;
if (ext == null) return false;
string uri = "http://" + ext.Address + ":" + region.HttpPort + "/region/" + thisRegion.RegionID + "/";
//m_log.Debug(" >>> DoHelloNeighbourCall <<< " + uri);
WebRequest HelloNeighbourRequest = WebRequest.Create(uri);

4
OpenSim/Services/Connectors/SimianGrid/SimianGridServiceConnector.cs
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@ -104,6 +104,8 @@ namespace OpenSim.Services.Connectors.SimianGrid
public string RegisterRegion(UUID scopeID, GridRegion regionInfo)
{
IPEndPoint ext = regionInfo.ExternalEndPoint;
if (ext == null) return "Region registration for " + regionInfo.RegionName + " failed: Could not resolve EndPoint";
Vector3d minPosition = new Vector3d(regionInfo.RegionLocX, regionInfo.RegionLocY, 0.0);
Vector3d maxPosition = minPosition + new Vector3d(Constants.RegionSize, Constants.RegionSize, 4096.0);
@ -114,7 +116,7 @@ namespace OpenSim.Services.Connectors.SimianGrid
{ "ServerURI", OSD.FromString(regionInfo.ServerURI) },
{ "InternalAddress", OSD.FromString(regionInfo.InternalEndPoint.Address.ToString()) },
{ "InternalPort", OSD.FromInteger(regionInfo.InternalEndPoint.Port) },
{ "ExternalAddress", OSD.FromString(regionInfo.ExternalEndPoint.Address.ToString()) },
{ "ExternalAddress", OSD.FromString(ext.Address.ToString()) },
{ "ExternalPort", OSD.FromInteger(regionInfo.ExternalEndPoint.Port) },
{ "MapTexture", OSD.FromUUID(regionInfo.TerrainImage) },
{ "Access", OSD.FromInteger(regionInfo.Access) },

8
OpenSim/Services/Connectors/Simulation/SimulationServiceConnector.cs
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@ -348,9 +348,11 @@ namespace OpenSim.Services.Connectors.Simulation
public bool RetrieveAgent(GridRegion destination, UUID id, out IAgentData agent)
{
IPEndPoint ext = destination.ExternalEndPoint;
agent = null;
if (ext == null) return false;
// Eventually, we want to use a caps url instead of the agentID
string uri = "http://" + destination.ExternalEndPoint.Address + ":" + destination.HttpPort + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";
string uri = "http://" + ext.Address + ":" + destination.HttpPort + AgentPath() + id + "/" + destination.RegionID.ToString() + "/";
//Console.WriteLine(" >>> DoRetrieveRootAgentCall <<< " + uri);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
@ -514,8 +516,10 @@ namespace OpenSim.Services.Connectors.Simulation
public bool CreateObject(GridRegion destination, ISceneObject sog, bool isLocalCall)
{
IPEndPoint ext = destination.ExternalEndPoint;
if (ext == null) return false;
string uri
= "http://" + destination.ExternalEndPoint.Address + ":" + destination.HttpPort + ObjectPath() + sog.UUID + "/";
= "http://" + ext.Address + ":" + destination.HttpPort + ObjectPath() + sog.UUID + "/";
//m_log.Debug(" >>> DoCreateObjectCall <<< " + uri);
WebRequest ObjectCreateRequest = WebRequest.Create(uri);

8
OpenSim/Services/Interfaces/IGridService.cs
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@ -259,9 +259,13 @@ namespace OpenSim.Services.Interfaces
}
catch (SocketException e)
{
throw new Exception(
/*throw new Exception(
"Unable to resolve local hostname " + m_externalHostName + " innerException of type '" +
e + "' attached to this exception", e);
e + "' attached to this exception", e);*/
// Don't throw a fatal exception here, instead, return Null and handle it in the caller.
// Reason is, on systems such as OSgrid it has occured that known hostnames stop
// resolving and thus make surrounding regions crash out with this exception.
return null;
}
return new IPEndPoint(ia, m_internalEndPoint.Port);

1
OpenSim/Services/LLLoginService/LLLoginResponse.cs
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@ -327,6 +327,7 @@ namespace OpenSim.Services.LLLoginService
private void FillOutRegionData(GridRegion destination)
{
IPEndPoint endPoint = destination.ExternalEndPoint;
if (endPoint == null) return;
SimAddress = endPoint.Address.ToString();
SimPort = (uint)endPoint.Port;
RegionX = (uint)destination.RegionLocX;