The client encountered an error when handling a client request.
Syntax
Sub object_OnError (
[Index As Integer,]
ByVal ClientId As Variant,
ByVal ErrorCode As Variant,
ByVal Description As Variant
)
Parameters
- ClientId
- An integer value which uniquely identifies the client session.
- ErrorCode
- An integer value which specifies the error that has occurred.
- Description
- A string that describes the error.
Remarks
The OnError event occurs whenever the server encounters an
error while accepting a client connection or processing a request. It
is important to note that this event is not raised for every error
that occurs. The following are some common situations
in which this event handler may be invoked:
- A network error occurs when the client connection is being
accepted by the server. This could be the result of an aborted
connection or some other lower-level failure reported by the
networking subsystem on the server.
- The server is configured to use implicit SSL but cannot obtain
the security credentials required to create the security context for
the session. Usually this indicates that the server certificate
cannot be found, or the certificate does not have a private key
associated with it. It could also indicate a general problem with
the cryptographic subsystem where the client and server could not
successfully negotiate a cipher suite.
- A network error occurs when attempting to process a command
issued by the client. This usually indicates that the connection to
the client has been aborted, either because the client is not
acknowledging the data that has been exchanged with the server, or
the client has terminated abnormally. This event will not occur if
the client terminates the connection normally.
In most situations where this event handler is invoked, the error
is not recoverable and the only action that can be taken is to
terminate the client session.
See Also
LastError Property,
LastErrorString Property,
ThrowError Property
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