private void OnAppDomainUnload(object unusedObject, EventArgs unusedEventArgs)
{
try
{
System.Threading.Thread.GetDomain().DomainUnload -= LegacyProvider.s_onAppDomainUnload;
if (_cache != null)
{
lock (s_dataLock)
{
s_cacheNeedInit = true;
_cache.Dispose();
_cache = null;
}
}
if (_logs)
{
NCacheLog.Info(" disposed");
}
}
catch (Exception exc)
{
RaiseException(exc);
}
finally
{
}
}
protected DistributionMaps GetMapsOnNodeJoining(DistributionInfoData distInfoData)
{
if (NCacheLog.IsInfoEnabled)
{
NCacheLog.Info("DistributionMgr.GetMapsOnNodeJoining()", "Total Data Size : " + TotalDataSize.ToString());
}
ArrayList tmpMap = null;
Hashtable bucketsOwnershipMap = null;
ArrayList partitionNodes = new ArrayList();
ArrayList newHashMap = DistributeHashMap.BalanceBuckets(distInfoData, _lastCreatedHashMap, _bucketsStats, _existingMembers, _cacheSizePerNode, NCacheLog);
_existingMembers.Add(distInfoData.AffectedNode.NodeAddress);
tmpMap = ChangeOwnerShip(newHashMap, distInfoData.AffectedNode.NodeAddress);
_lastCreatedHashMap = tmpMap.Clone() as ArrayList;
bucketsOwnershipMap = GetBucketsOwnershipMap(_lastCreatedHashMap);
if (NCacheLog.IsInfoEnabled)
{
NCacheLog.Info("DistributionMgr.GetMaps()", "Sending new map as a new node joined the cluster");
}
return(new DistributionMaps(_lastCreatedHashMap, bucketsOwnershipMap));
}
/// <summary>
/// Stop notification listening
/// </summary>
public override void Stop()
{
try
{
// As the notify once is set to false, we have to remove registered notification
// so change notifications are no longer sent.
OracleConnection connection = (OracleConnection)base._connectionPool.GetConnection(base._connString);
if (connection != null)
{
this._oracleDep.RemoveRegistration(connection);
}
this._rowids.Clear();
}
catch (InvalidOperationException)
{
// Notification registration is in an unregistered state
}
catch (Exception exc)
{
NCacheLog.Error("NotificationBasedDependencyManager.OracleDependencyListener", exc.ToString());
}
finally
{
base.Stop();
}
}
/// <summary>
/// Verifies whether a given node is the permanent owner of the bucket or not
/// </summary>
/// <param name="bucketId"></param>
/// <param name="perOwner"></param>
/// <returns></returns>
public bool VerifyPermanentOwnership(int bucketId, Address perOwner)
{
try
{
if (perOwner != null)
{
Sync.AcquireReaderLock(Timeout.Infinite);
try
{
lock (InstalledHashMap.SyncRoot)
{
HashMapBucket bucket = (HashMapBucket)InstalledHashMap[bucketId];
return(perOwner.Equals(bucket.TempAddress));
}
}
finally
{
Sync.ReleaseReaderLock();
}
}
}
catch (Exception e)
{
NCacheLog.Error("DistributionMgr.VerifyPermanentOwnership", e.ToString());
}
return(false);
}
/// <summary>
/// Removes all entries from the store.
/// </summary>
internal override void ClearInternal()
{
if (_cacheStore == null)
{
throw new InvalidOperationException();
}
_cacheStore.Clear();
_topicManager.Clear();
_context.PerfStatsColl.SetCacheSize(0); // on clear cache cachesize set to zero
if (_evictionThread != null)
{
NCacheLog.Flush();
#if !NETCORE
_evictionThread.Abort();
#elif NETCORE
_evictionThread.Interrupt();
#endif
}
if (_evictionPolicy != null)
{
_evictionPolicy.Clear();
if (_context.PerfStatsColl != null)
{
_context.PerfStatsColl.SetEvictionIndexSize(_evictionPolicy.IndexInMemorySize);
}
}
}
public void RemoveSyncData()
{
if (_cacheID == null)
{
return;
}
try
{
_oledbConPool.RemoveSyncData(SYNC_TABLE, _cacheID);
}
catch (Exception e)
{
NCacheLog.Error("CacheDbSyncManager", e.ToString());
}
try
{
_sqlConPool.RemoveSyncData(SYNC_TABLE, _cacheID);
}
catch (Exception e)
{
NCacheLog.Error("CacheDbSyncManager", e.ToString());
}
}
/// <summary>
/// Disposes of the resources (other than memory) used by the module that implements
/// <see cref="System.Web.IHttpModule"/>.
/// </summary>
/// <remarks>
/// Dispose performs any final cleanup work prior to removal of the module from
/// the execution pipeline.
/// </remarks>
void IHttpModule.Dispose()
{
if (NCacheLog != null)
{
NCacheLog.Info("NSessionStateModule disposed");
}
}
private bool ReleaseSessionItemLock(string sessionid, object lockID)
{
try
{
_cache.Unlock(GetUniqueSessionId(sessionid));//, lockID);
return(true);
}
catch (Exception)
{
try
{
_cache.Unlock(GetUniqueSessionId(sessionid));
return(true);
}
catch (Exception e)
{
if (_detailedLogs)
{
NCacheLog.Debug("ReleaseSessionItemLock failed ( " + sessionid + "). Exception = " + e.ToString());
}
RaiseException(e, sessionid);
}
}
return(false);
}
/// <summary>
/// Called when items in cache expires
/// </summary>
/// <param name="key">Expired item key</param>
/// <param name="value">Expired item value</param>
/// <param name="reason">Reason of expiration</param>
//private void OnItemRemoved(object key, object value, CacheItemRemovedReason reason)
//{
// if (reason == CacheItemRemovedReason.Expired)
// _expireCallback.Invoke((string)key, _data);
//}
public void LogError(Exception exception, string sessionID)
{
try
{
if (sessionID == null)
{
sessionID = "";
}
if (NCacheLog != null)
{
NCacheLog.Error("[Error]", sessionID + " :" + exception);
}
}
catch (Exception ex)
{
if (_writeExceptionsToEventLog)
{
try
{
AppUtil.LogEvent(SOURCE, ex.ToString(), EventLogEntryType.Error, EventCategories.Error, EventID.GeneralError);
}
catch (Exception exc)
{
throw new ProviderException(exc.Message, exc);
}
}
}
RaiseException(exception, sessionID);
}
/**<summary>
* Inserts item in store.
* When an items expires, its automatically been removed from cache, so we do not have
* to check the expiration time, and simply an Insert call to cache will add the items if
* its new or updates the item if it already exists, so newItem parameter is also useless
* </summary>**/
public override void SetAndReleaseItemExclusive(HttpContext context, string id, SessionStateStoreData items, object lockID, bool newItem)
{
try
{
PutInNCache(id, InsertContents(context, items, SessionStateActions.None, items.Timeout), lockID, true);
}
catch (Exception)
{
try
{
if (_cache != null)
{
_cache.Remove(GetUniqueSessionId(id), true);
}
}
catch (Exception ex)
{
if (_detailedLogs)
{
NCacheLog.Debug("SetAndReleaseItemExclusive failed ( " + id + "). Exception = " + ex.ToString());
}
}
try
{
PutInNCache(id, InsertContents(context, items, SessionStateActions.None, items.Timeout), lockID, false);
}
catch (Exception exc)
{
RaiseException(exc, id);
}
}
}
/// <summary> Iterates through all the protocols <em>from top to bottom</em> and does the following:
/// <ol>
/// <li>Waits until all messages in the down queue have been flushed (ie., size is 0)
/// <li>Calls stop() on the protocol
/// </ol>
/// </summary>
public virtual void stopStack()
{
if (timer != null)
{
try
{
timer.Dispose();
}
catch (System.Exception ex)
{
NCacheLog.Error("ProtocolStack.stopStack", "exception=" + ex);
}
}
if (stopped)
{
return;
}
if (stop_promise == null)
{
stop_promise = new Promise();
}
else
{
stop_promise.Reset();
}
down(new Event(Event.STOP));
stop_promise.WaitResult(5000);
operational = false;
stopped = true;
}
/// <summary>
/// Remove the related record from ncache_db_sync table
/// </summary>
/// <returns></returns>
private bool RemoveSyncData()
{
object[] tableInfo = new object[] { CacheDbSyncManager.SYNC_TABLE, _cacheName, _dbCacheKey };
IDbCommand command = null;
try
{
command = _connection.CreateCommand();
command.CommandText = string.Format(CultureInfo.InvariantCulture, "DELETE FROM {0} WHERE CACHE_ID = '{1}' AND CACHE_KEY = '{2}'", tableInfo);
command.CommandType = CommandType.Text;
if (_connection.State != ConnectionState.Open)
{
_connection.Open();
}
command.ExecuteNonQuery();
return(true);
}
catch (Exception ex)
{
NCacheLog.Error("DBCacheDependency", ex.ToString());
return(false);
}
finally
{
if (command != null)
{
command.Dispose();
command = null;
}
}
}
/// <summary>
/// Locks the buckets which are under the process of state transfer. A locked
/// bucket can not be assigned to a node while loadbalancing. Only a coordinator
/// node can lock the buckets.
/// </summary>
/// <param name="buckets"></param>
/// <param name="requestingNode"></param>
/// <returns></returns>
public virtual Hashtable LockBuckets(ArrayList buckets, Address requestingNode)
{
ArrayList lockAcquired = new ArrayList();
ArrayList ownerChanged = new ArrayList();
Hashtable result = new Hashtable();
Sync.AcquireWriterLock(Timeout.Infinite);
try
{
if (buckets != null)
{
IEnumerator ie = buckets.GetEnumerator();
while (ie.MoveNext())
{
lock (InstalledHashMap.SyncRoot)
{
HashMapBucket bucket = (HashMapBucket)InstalledHashMap[(int)ie.Current];
if (requestingNode.Equals(bucket.TempAddress))
{
if (NCacheLog.IsInfoEnabled)
{
NCacheLog.Info("DistributionMgr.lockbuckets", "acquired locked on bucket [" + bucket.BucketId + "] by " + requestingNode);
}
bucket.Status = BucketStatus.UnderStateTxfr;
if (!lockAcquired.Contains(ie.Current))
{
lockAcquired.Add(ie.Current);
}
}
else if (!ownerChanged.Contains(ie.Current))
{
if (NCacheLog.IsInfoEnabled)
{
NCacheLog.Info("DistributionMgr.lockbuckets", "bucket [" + bucket.BucketId + "] owner ship is changed; new owner is " + bucket.TempAddress);
}
ownerChanged.Add(ie.Current);
}
}
}
}
}
catch (Exception e)
{
NCacheLog.Error("DistributionMgr.lockbuckets", e.ToString());
return(result);
}
finally
{
Sync.ReleaseWriterLock();
}
result[BucketLockResult.OwnerChanged] = ownerChanged;
result[BucketLockResult.LockAcquired] = lockAcquired;
return(result);
}
public void UpdateBucketStats(NodeInfo localNode)
{
try
{
Sync.AcquireWriterLock(Timeout.Infinite);
if (localNode == null)
{
return;
}
if (_bucketsStats == null)
{
_bucketsStats = new Hashtable();
}
if (localNode.Statistics != null && localNode.Statistics.LocalBuckets != null)
{
Hashtable bucketStats = localNode.Statistics.LocalBuckets.Clone() as Hashtable;
if (bucketStats != null)
{
IDictionaryEnumerator ide = bucketStats.GetEnumerator();
while (ide.MoveNext())
{
//muds:
//see if this node is the permanent owner of the bucket
//otherwise its quite possible that we override the
//stats of the bucket from the temporary owner.
HashMapBucket bucket = (HashMapBucket)_installedHashMap[(int)ide.Key];
if (bucket.PermanentAddress.Equals(localNode.Address))
{
BucketStatistics stats = ide.Value as BucketStatistics;
_bucketsStats[ide.Key] = ide.Value;
}
else
{
}
}
}
if (NCacheLog.IsInfoEnabled)
{
NCacheLog.Info("DistributionMgr.UpdateBucketStats()", "bucketStats = " + _bucketsStats == null ? "null" : _bucketsStats.Count.ToString());
}
}
}
catch (Exception e)
{
if (NCacheLog.IsErrorEnabled)
{
NCacheLog.Error("DistributionMgr.UpdateBucketStats()", e.ToString());
}
}
finally
{
Sync.ReleaseWriterLock();
}
}
private void InitializeCache()
{
lock (s_dataLock)
{
try
{
if (_cache == null)
{
LegacyProvider.s_onAppDomainUnload = new EventHandler(OnAppDomainUnload);
System.Threading.Thread.GetDomain().DomainUnload += LegacyProvider.s_onAppDomainUnload;
if (_logs || _detailedLogs)
{
if (_ncacheLog == null)
{
_ncacheLog = new NCacheLogger();
_ncacheLog.Initialize(LoggerNames.SessionStoreProvider, _cacheId);
if (_detailedLogs)
{
NCacheLog.SetLevel("all");
}
else
{
if (_logs)
{
NCacheLog.SetLevel("info");
}
}
}
}
if (_isLocationAffinityEnabled)
{
_cache = new RegionalCache(_ncacheLog, NCacheSessionStateConfigReader.LoadSessionLocationSettings());
}
else
{
_cache = new SingleRegionCache(_operationRetry, _operationRetryInterval);
}
_cache.InitializeCache(_cacheId);
_cache.ExceptionsEnabled = true;
s_cacheNeedInit = false;
if (_logs)
{
NCacheLog.Info("NSessionStoreProvider initialized");
}
Thread.Sleep(_inprocDelay);
}
}
catch (Exception exc)
{
_cache = null; // so that next time cache can be initialized. Check the above condition if(_cache == null)
RaiseException(exc);
}
}
}
public void RemoveDependency(object key, CacheSyncDependency dependency)
{
if (_context.IsDbSyncCoordinator)
{
if (dependency == null)
{
return;
}
try
{
SyncItem item = new SyncItem(key, dependency.Key, dependency.CacheId);
lock (_dependenciesStatus.SyncRoot)
{
if (_dependenciesKeyMap.Contains(item))
{
ClusteredArrayList dependentKeys = _dependenciesKeyMap[item] as ClusteredArrayList;
if (dependentKeys != null)
{
dependentKeys.Remove(key);
if (dependentKeys.Count > 0)
{
return;
}
}
_dependenciesKeyMap.Remove(item);
}
if (_dependenciesStatus.Contains(item))
{
_dependenciesStatus.Remove(item);
}
else
{
return;
}
}
ISyncCache syncCache = _synCaches[item.CacheId] as ISyncCache;
ISyncCacheEventsListener listener = _listeners[item.CacheId] as ISyncCacheEventsListener;
if (syncCache != null && listener != null)
{
syncCache.UnRegisterSyncKeyNotifications((string)item.Key, listener);
}
}
catch (Exception e)
{
NCacheLog.Error("CacheSyncManager:", e.ToString());
}
}
else
{
lock (_inactiveDependencies.SyncRoot)
{
_inactiveDependencies.Remove(key);
}
}
}
/// <summary>
/// Initializes the counter instances and category.
/// </summary>
public void InitializePerfCounters(bool enableDebuggingCounters)
{
try
{
if (!UserHasAccessRights)
{
return;
}
lock (this)
{
string instname = _instanceName;
_instanceName = instname;
if (enableDebuggingCounters)
{
_pcTcpDownQueueCount = new PerformanceCounter(PC_CATEGORY, "TcpDownQueueCount", _instanceName, false);
_pcTcpUpQueueCount = new PerformanceCounter(PC_CATEGORY, "TcpUpQueueCount", _instanceName, false);
_pcBcastQueueCount = new PerformanceCounter(PC_CATEGORY, "BcastQueueCount", _instanceName, false);
_pcMcastQueueCount = new PerformanceCounter(PC_CATEGORY, "McastQueueCount", _instanceName, false);
_pcSocketSendTime = new PerformanceCounter(PC_CATEGORY, "Socket send time (msec)", _instanceName, false);
_pcSocketSendSize = new PerformanceCounter(PC_CATEGORY, "Socket send size (bytes)", _instanceName, false);
_pcSocketReceiveTime = new PerformanceCounter(PC_CATEGORY, "Socket recv time (msec)", _instanceName, false);
_pcSocketReceiveSize = new PerformanceCounter(PC_CATEGORY, "Socket recv size (bytes)", _instanceName, false);
_pcNagglingMsgCount = new PerformanceCounter(PC_CATEGORY, "NaglingMsgCount", _instanceName, false);
_pcBytesSentPerSec = new PerformanceCounter(PC_CATEGORY, "Bytes sent/sec", _instanceName, false);
_pcBytesReceivedPerSec = new PerformanceCounter(PC_CATEGORY, "Bytes received/sec", _instanceName, false);
}
_pcClusteredOperationsPerSec = new PerformanceCounter(PC_CATEGORY, "Cluster ops/sec", _instanceName, false);
if (System.Configuration.ConfigurationSettings.AppSettings["printClusterStats"] != null)
{
bool printStats = Convert.ToBoolean(System.Configuration.ConfigurationSettings.AppSettings["printClusterStats"]);
if (printStats)
{
if (System.Configuration.ConfigurationSettings.AppSettings["statsPrintInterval"] != null)
{
_printInterval = new TimeSpan(Convert.ToInt32(System.Configuration.ConfigurationSettings.AppSettings["statsPrintInterval"]), 0, 0);
}
_logger = new Logs();
_logger.Initialize(instname + ".clstats", "ClusterPerfMonStats");
_printThread = new Thread(new ThreadStart(PrintStats));
_printThread.Start();
}
}
}
}
catch (Exception e)
{
NCacheLog.Warn("PerfStatsCollector.PerfStatsCollector() " + e.Message);
}
}
public override void down(Event evt)
{
if (top_prot != null)
{
top_prot.receiveDownEvent(evt);
}
else
{
NCacheLog.Error("ProtocolStack", "no down protocol available !");
}
}
/// <summary>
///
/// </summary>
/// <param name="newMap"></param>
/// <param name="newBucketsOwnershipMap"></param>
/// <param name="leftMbrs"></param>
public void InstallHashMap(DistributionMaps distributionMaps, ArrayList leftMbrs)
{
ArrayList newMap = null;
Hashtable newBucketsOwnershipMap = null;
_sync.AcquireWriterLock(Timeout.Infinite);
try
{
if (distributionMaps == null)
{
return;
}
newMap = distributionMaps.Hashmap;
newBucketsOwnershipMap = distributionMaps.BucketsOwnershipMap;
if (newMap == null || newBucketsOwnershipMap == null)
{
return;
}
if (_installedHashMap != null)
{
for (int i = 0; i < newMap.Count; i++)
{
HashMapBucket newBucket = (HashMapBucket)newMap[i];
int index = _installedHashMap.IndexOf(newBucket);
HashMapBucket oldBucket = (HashMapBucket)_installedHashMap[index];
if (!oldBucket.PermanentAddress.Equals(newBucket.PermanentAddress) && oldBucket.TempAddress.Equals(newBucket.TempAddress))
{
NCacheLog.Error("Install Hasmap", "BucketID: " + index.ToString() + "\toldBucket: " + oldBucket.PermanentAddress.ToString() + "\toldBucket.Temp: " + oldBucket.TempAddress.ToString() + "\tnewBucket: " + newBucket.PermanentAddress.ToString() + "\tnewBucekt.Temp: " + newBucket.TempAddress.ToString());
}
else
{
oldBucket.PermanentAddress = newBucket.PermanentAddress;
oldBucket.TempAddress = newBucket.TempAddress;
oldBucket.Status = newBucket.Status;
}
}
}
else
{
_installedHashMap = newMap;
}
_bucketsOwnershipMap = newBucketsOwnershipMap;
NotifyBucketUpdate();
}
finally
{
_sync.ReleaseWriterLock();
}
}
/// <summary>
/// Called when an existing member leaves the group.
/// </summary>
/// <param name="address">address of the joining member</param>
/// <returns>true if the node left successfuly</returns>
internal virtual int OnMemberLeft(Address address, Hashtable bucketsOwnershipMap)
{
if (_members.Contains(address))
{
NCacheLog.Warn("SubCluster.OnMemberJoined()", "Memeber " + address + " left sub-cluster " + _groupid);
_members.Remove(address);
_servers.Remove(address);
return(_members.Count);
}
return(-1);
}
internal void RaiseException(Exception exc)
{
if (NCacheLog != null)
{
NCacheLog.Error(exc.ToString());
}
if (this.ExceptionsEnabled)
{
throw exc;
}
}
private void InitializeCache()
{
lock (s_dataLock)
{
try
{
//if (StaticLogs.IsWriterNull && _logs) StaticLogs.Initialize(_cacheId, "SessionStoreProvider");
if (_cache == null)
{
if (_logs || _detailedLogs)
{
if (_ncacheLog == null)
{
string logFileNmae = _cacheId;
_ncacheLog = new NCacheLogger();
_ncacheLog.Initialize(LoggerNames.SessionStoreProvider, logFileNmae);
if (_detailedLogs)
{
NCacheLog.SetLevel("all");
}
else
{
if (_logs)
{
NCacheLog.SetLevel("info");
}
}
}
}
_cache = new SingleRegionCache(_operationRetry, _operationRetryInterval);
_cache.InitializeCache(_cacheId);
s_cacheNeedInit = false;
OnCacheInitialize();
if (_logs)
{
LogInfo("NSessionStoreProvider initialized", null);
}
Thread.Sleep(_inprocDelay);
}
}
catch (Exception exc)
{
_cache = null; //taimoor: so that next time cache can be initialized. Check the above condition if(_cache == null)
LogError(exc, null);
}
}
}
private void SendPollRequestTask()
{
try
{
// Waiting 30 minutes to declare a client dead.
// No of notifications to be sent in 30 minutes
float deadClientTest = (float)_deadClientInterval / _pollRequestInterval;
HPTime lastDeadClientCheckTime = HPTime.Now;
bool looped = false;
while (!_isDisposing)
{
try
{
for (float i = 0; i < deadClientTest; i++)
{
looped = true;
if (_isDisposing)
{
break;
}
SendPollRequest();
lock (this)
{
Monitor.Wait(this, _pollRequestInterval);
}
}
if (looped)
{
CleanDeadClients(lastDeadClientCheckTime);
}
lastDeadClientCheckTime = HPTime.Now;
}
catch (ThreadAbortException)
{
break;
}
catch (ThreadInterruptedException)
{
break;
}
}
}
catch (ThreadAbortException) { }
catch (ThreadInterruptedException) { }
catch (Exception e)
{
NCacheLog.Error("PullBasedNotificationManager.SendPollRequest", e.ToString());
}
}
/// <summary>
/// Returns the location identifier for this HttpRequest context. Response cookies are searched first
/// and if no cookie is found then Requeset cookies are searched for location identifier.
/// If there isno cookie in Request or Response then the Location Identifier in the SessionId id returned.
/// </summary>
/// <param name="context">Context of current HttpRequest</param>
/// <param name="sessionId">SessionId for the Request</param>
/// <returns>Location Identifer if cookie is found other wise the sessionId is returned.</returns>
private string GetLocationID(HttpContext context, string sessionId)
{
string locationID = sessionId;
if (_isLocationAffinityEnabled)
{
try
{
if (context.Response.Cookies.Get(LOC_IDENTIFIER) == null)
{
context.Response.Cookies.Remove(LOC_IDENTIFIER);
}
else if (string.IsNullOrEmpty(context.Response.Cookies.Get(LOC_IDENTIFIER).Value))
{
context.Response.Cookies.Remove(LOC_IDENTIFIER);
}
else
{
if (NCacheLog != null)
{
NCacheLog.Info(sessionId + " :" + "New Location in Response Cookie = " + context.Response.Cookies.Get(LOC_IDENTIFIER).Value);
}
return(context.Response.Cookies.Get(LOC_IDENTIFIER).Value);
}
if (context.Request.Cookies.Get(LOC_IDENTIFIER) == null)
{
context.Request.Cookies.Remove(LOC_IDENTIFIER);
}
else if (string.IsNullOrEmpty(context.Request.Cookies.Get(LOC_IDENTIFIER).Value))
{
context.Request.Cookies.Remove(LOC_IDENTIFIER);
}
else
{
if (NCacheLog != null)
{
NCacheLog.Info(sessionId + " :" + "New Location in Request Cookie = " + context.Request.Cookies.Get(LOC_IDENTIFIER).Value);
}
return(context.Request.Cookies.Get(LOC_IDENTIFIER).Value);
}
}
catch (Exception e)
{
if (NCacheLog != null)
{
NCacheLog.Error(sessionId + " :" + e.ToString());
}
}
}
return(locationID);
}
public override SessionStateStoreData CreateNewStoreData(HttpContext context, int timeOut)
{
SessionStateStoreData data = new SessionStateStoreData(new SessionStateItemCollection(),
SessionStateUtility.GetSessionStaticObjects(context),
timeOut);
if (_detailedLogs)
{
NCacheLog.Debug("New data object created to be used for current request");
}
return(data);
}
private void PrintStats()
{
while (_printThread != null)
{
try
{
if (_logger != null)
{
StringBuilder sb = new StringBuilder();
sb.Append("[ print_interval :" + _printInterval);
if (_pcBcastQueueCount != null)
{
sb.Append(" ; BCastQueueCount : " + _pcBcastQueueCount.RawValue);
}
if (_pcBcastQueueCount != null)
{
sb.Append(" ; TcpDownQueueCount : " + _pcTcpDownQueueCount.RawValue);
}
if (_pcBcastQueueCount != null)
{
sb.Append(" ; TcpUpQueueCount : " + _pcTcpUpQueueCount.RawValue);
}
if (_pcBcastQueueCount != null)
{
sb.Append(" ; MCastQueueCount : " + _pcMcastQueueCount.RawValue);
}
sb.Append(" ]");
_logger.WriteLogEntry("ClStatsCollector.PrintStats", sb.ToString());
System.Threading.Thread.Sleep(_printInterval);
}
}
catch (ThreadInterruptedException ti)
{
break;
}
catch (ThreadAbortException te)
{
break;
}
catch (Exception e)
{
NCacheLog.Error("ClusterStatsCollector.PrintStats", e.ToString());
}
}
}
/// <summary>
/// Set the status of the bucket to state transfer and in this way this
/// bucket becomes locked. A locked bucket can not be assigned during
/// loadbalancing.
/// </summary>
/// <param name="buckets"></param>
/// <param name="node"></param>
public void ChangeBucketStatusToStateTransfer(ArrayList buckets, Address node)
{
Sync.AcquireWriterLock(Timeout.Infinite);
try
{
if (buckets != null)
{
IEnumerator ie = buckets.GetEnumerator();
while (ie.MoveNext())
{
lock (InstalledHashMap.SyncRoot)
{
HashMapBucket bucket = (HashMapBucket)InstalledHashMap[(int)ie.Current];
if (node.Equals(bucket.TempAddress))
{
bucket.Status = BucketStatus.UnderStateTxfr;
if (NCacheLog.IsInfoEnabled)
{
NCacheLog.Info("DistributionMgr.ChangeBucketStatus", bucket.ToString());
}
}
}
}
if (_bucketsOwnershipMap != null)
{
ArrayList nodeBuckets = _bucketsOwnershipMap[node] as ArrayList;
if (nodeBuckets != null)
{
foreach (int bucketId in buckets)
{
int indexOfBucket = nodeBuckets.IndexOf(new HashMapBucket(null, bucketId));
if (indexOfBucket != -1)
{
HashMapBucket bucket = nodeBuckets[indexOfBucket] as HashMapBucket;
if (node.Equals(bucket.TempAddress))
{
bucket.Status = BucketStatus.UnderStateTxfr;
}
}
}
}
}
}
}
finally
{
Sync.ReleaseWriterLock();
}
}
/// <summary>
/// Adds the Current Primary cache's location identifier in the Response cookie collection.
/// </summary>
/// <param name="context">Context of current HttpRequest.</param>
private void UpdateCookies(HttpContext context)
{
if (_cache != null)
{
if (!string.IsNullOrEmpty(_cache.PrimaryPrefix))
{
context.Response.Cookies.Set(new HttpCookie(LOC_IDENTIFIER, _cache.PrimaryPrefix));
if (_logs)
{
NCacheLog.Info("Session Location Changed: New_Location=" + _cache.PrimaryPrefix);
}
}
}
}
/// <summary>
/// Initializes the counter instances and category.
/// </summary>
public void InitializePerfCounters(bool enableDebuggingCounters)
{
#if NETCORE
if (System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices.OSPlatform.Linux))
{
return;
}
#endif
try
{
if (!UserHasAccessRights)
{
return;
}
lock (this)
{
string instname = _instanceName;
_instanceName = instname;
if (enableDebuggingCounters)
{
_pcTcpDownQueueCount = new PerformanceCounter(PC_CATEGORY, "TcpDownQueueCount", _instanceName, false);
_pcTcpUpQueueCount = new PerformanceCounter(PC_CATEGORY, "TcpUpQueueCount", _instanceName, false);
_pcBcastQueueCount = new PerformanceCounter(PC_CATEGORY, "BcastQueueCount", _instanceName, false);
_pcMcastQueueCount = new PerformanceCounter(PC_CATEGORY, "McastQueueCount", _instanceName, false);
_pcSocketSendTime = new PerformanceCounter(PC_CATEGORY, "Socket send time (msec)", _instanceName, false);
_pcSocketSendSize = new PerformanceCounter(PC_CATEGORY, "Socket send size (bytes)", _instanceName, false);
_pcSocketReceiveTime = new PerformanceCounter(PC_CATEGORY, "Socket recv time (msec)", _instanceName, false);
_pcSocketReceiveSize = new PerformanceCounter(PC_CATEGORY, "Socket recv size (bytes)", _instanceName, false);
_pcBytesSentPerSec = new PerformanceCounter(PC_CATEGORY, "Bytes sent/sec", _instanceName, false);
_pcBytesReceivedPerSec = new PerformanceCounter(PC_CATEGORY, "Bytes received/sec", _instanceName, false);
}
_pcClusteredOperationsPerSec = new PerformanceCounter(PC_CATEGORY, "Cluster ops/sec", _instanceName, false);
_printInterval = ServiceConfiguration.StatsPrintInterval;
_logger = new Logs();
_logger.Initialize(instname + ".clstats", "ClusterPerfMonStats");
_printThread = new Thread(new ThreadStart(PrintStats));
_printThread.Start();
}
}
catch (Exception e)
{
NCacheLog.Warn("PerfStatsCollector.PerfStatsCollector() " + e.Message);
}
}
private Address SelectNodeInternal(string key)
{
int hashCode = AppUtil.GetHashCode(key);
int index = hashCode / this.BucketSize;
if (index < 0)
{
index = index * -1;
}
_sync.AcquireReaderLock(Timeout.Infinite);
try
{
if (_installedHashMap != null)
{
HashMapBucket bucket = _installedHashMap[index] as HashMapBucket;
if (bucket != null)
{
//if (bucket.Status != BucketStatus.Functional)
{
/// This is special case that handles operations during stateTransfer.
/// If a bucket is not yet transfered to the new coordinator from the replica. then
/// the replica's address is returned.
Address coordinatorNodeAddress = bucket.TempAddress; // this should be the sub-coordinator addres
ArrayList ownershipMap = _bucketsOwnershipMap[coordinatorNodeAddress] as ArrayList;
if (ownershipMap == null)
{
NCacheLog.Warn("DistributionManager.SelectNodeInternal()", "ownershipMap is null. Returning permanent address of bucket.");
return(bucket.PermanentAddress);
}
int indexOfOwnedBucket = ownershipMap.IndexOf(bucket);
if (indexOfOwnedBucket != -1)
{
HashMapBucket ownedBucket = ownershipMap[indexOfOwnedBucket] as HashMapBucket;
return(ownedBucket.PermanentAddress);
}
}
return(bucket.PermanentAddress);
}
}
return(null);
}
finally
{
_sync.ReleaseReaderLock();
}
}
