Pavel Tupitsyn created IGNITE-12415:
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Summary: .NET: Thin client does not connect to old server nodes
Key: IGNITE-12415
URL: https://issues.apache.org/jira/browse/IGNITE-12415
Project: Ignite
Issue Type: Bug
Components: platforms
Affects Versions: 2.8
Reporter: Pavel Tupitsyn
Assignee: Pavel Tupitsyn
Fix For: 2.8
Exception when trying to connect .NET Thin Client from current master
(https://www.nuget.org/packages/Apache.Ignite/2.8.0-alpha20191203) to the 2.7.6
server node:
{code}
Unhandled exception. Apache.Ignite.Core.Client.IgniteClientException: Client
handshake failed: 'Unsupported version.'. Client version: 1.6.0. Server
version: 1.2.0
at
Apache.Ignite.Core.Impl.Client.ClientSocket.Handshake(IgniteClientConfiguration
clientConfiguration, ClientProtocolVersion version)
at
Apache.Ignite.Core.Impl.Client.ClientSocket..ctor(IgniteClientConfiguration
clientConfiguration, EndPoint endPoint, String host, Nullable`1 version,
Action`1 topVerCallback)
at Apache.Ignite.Core.Impl.Client.ClientFailoverSocket.Connect()
at
Apache.Ignite.Core.Impl.Client.ClientFailoverSocket..ctor(IgniteClientConfiguration
config, Marshaller marsh)
at
Apache.Ignite.Core.Impl.Client.IgniteClient..ctor(IgniteClientConfiguration
clientConfiguration)
at Apache.Ignite.Core.Ignition.StartClient(IgniteClientConfiguration
clientConfiguration)
at ConsoleApp2.Program.Main(String[] args) in
/home/pavel/RiderProjects/ConsoleApp2/ConsoleApp2/Program.cs:line 14
[StatusCode=Fail]
{code}
This is caused by buggy version handling logic in Handshake method. Otherwise
we support any older protocol version.
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