search

Alachisoft / NCache

NCache: Highly Scalable Distributed Cache for .NET
http://www.alachisoft.com
Apache License 2.0
647 stars 123 forks source link

Alachisoft.NCache.Runtime.Exceptions.OperationFailedException: 'Object reference not set to an instance of an object.' #63

Closed andrevoltolini closed 3 years ago

andrevoltolini commented 3 years ago

I hope everyone is doing well. I have the following problem:

Exception: Alachisoft.NCache.Runtime.Exceptions.OperationFailedException: 'Object reference not set to an instance of an object.' at Alachisoft.NCache.Client.Broker.RetrySendCommand(CommandBase command) at Alachisoft.NCache.Client.Broker.ExecuteRequest(Request request, Connection connection, Boolean checkConnected, Boolean waitForResponse) at Alachisoft.NCache.Client.RemoteCache.RegisterNotifications(NotificationsType notifMask, Connection connection) at Alachisoft.NCache.Client.Broker.ConnectRemoteServer(Connection connection, IPAddress addr, Int32 port, Boolean balanceNodes, Boolean importHashmap, Boolean registerNotifs, Exception& exception) at Alachisoft.NCache.Client.Broker.ConnectRemoteServer(Connection connection, ServerInfo server, Boolean registerNotifs) at Alachisoft.NCache.Client.Broker.StartServices(String cacheId, String server, Int32 port) at Alachisoft.NCache.Client.RemoteCache..ctor(String cacheId, Cache parent, CacheConnectionOptions cacheConnectionOptions, StatisticsCounter perfStatsCol) at Alachisoft.NCache.Client.CacheManager.GetCacheInternal(String cacheName, CacheConnectionOptions cacheConnectionOptions) at Alachisoft.NCache.Client.CacheManager.GetCache(String cacheName, CacheConnectionOptions cacheConnectionOptions)

Client version: 5.0.5 (.NET 5) Open source Server version: 5.0.4.0 Open source

Dan-Ahmed commented 3 years ago

Hi @andrevoltolini,

I believe you are using a higher version of NCache client (5.0 SP5) as compared to the NCache server (v5.0 SP4) which may be causing the issue. It is highly recommended for you to keep the NCache server as well as client in the same version and then test your application with the new NCache setup.

I hope this clarifies your confusion.

andrevoltolini commented 3 years ago

Hi @Dan-Ahmed, thanks for the reply. With the client in version 5.0.4 it works but you agree with me that the object reference exception is a problem in the code. Thanks.