* Start recording abnormal client thread terminations

OpenSim/Framework/Statistics/SimExtraStatsCollector.cs

@@ -38,6 +38,8 @@ namespace OpenSim.Framework.Statistics
     /// </summary>
     public class SimExtraStatsCollector : IStatsCollector
     {        
+        private long abnormalClientThreadTerminations;
+        
         private long assetsInCache;
         private long texturesInCache;
         private long assetCacheMemoryUsage;
@@ -46,6 +48,11 @@ namespace OpenSim.Framework.Statistics
 
         private long inventoryServiceRetrievalFailures;
         
+        /// <summary>
+        /// Number of times that a client thread terminated because of an exception
+        /// </summary>
+        public long AbnormalClientThreadTerminations { get { return abnormalClientThreadTerminations; } }
+
         public long AssetsInCache { get { return assetsInCache; } }
         public long TexturesInCache { get { return texturesInCache; } }
         public long AssetCacheMemoryUsage { get { return assetCacheMemoryUsage; } }
@@ -72,6 +79,11 @@ namespace OpenSim.Framework.Statistics
         private IDictionary<LLUUID, PacketQueueStatsCollector> packetQueueStatsCollectors
             = new Dictionary<LLUUID, PacketQueueStatsCollector>();
         
+        public void AddAbnormalClientThreadTermination()
+        {
+            abnormalClientThreadTerminations++;
+        }
+
         public void AddAsset(AssetBase asset)
         {
             assetsInCache++;
@@ -148,6 +160,14 @@ Blocked requests for missing textures: {2}" + Environment.NewLine,
                     TexturesInCache, TextureCacheMemoryUsage / 1024.0,
                     BlockedMissingTextureRequests));
             
+            sb.Append(Environment.NewLine);
+            sb.Append("CONNECTION STATISTICS");
+            sb.Append(Environment.NewLine);
+            sb.Append(
+                string.Format(
+                    "Abnormal client thread terminations: {0}" + Environment.NewLine,
+                    abnormalClientThreadTerminations));
+
             sb.Append(Environment.NewLine);
             sb.Append("INVENTORY STATISTICS");
             sb.Append(Environment.NewLine);

OpenSim/Region/ClientStack/LindenUDP/LLClientView.cs

@@ -39,6 +39,7 @@ using libsecondlife.Packets;
 using log4net;
 using OpenSim.Framework;
 using OpenSim.Framework.Communications.Cache;
+using OpenSim.Framework.Statistics;
 using OpenSim.Region.ClientStack.LindenUDP;
 using OpenSim.Region.Environment.Scenes;
 using Timer=System.Timers.Timer;
@@ -729,6 +730,9 @@ namespace OpenSim.Region.ClientStack.LindenUDP
                 if (e is ThreadAbortException)
                     throw e;
                 
+                if (StatsManager.SimExtraStats != null)
+                    StatsManager.SimExtraStats.AddAbnormalClientThreadTermination();
+                
                 // Don't let a failure in an individual client thread crash the whole sim.
                 // FIXME: could do more sophisticated cleanup since leaving client resources around may
                 // cause instability for the region server over time.