Using the ADO Client : ADO Connection Attributes : Alternate Servers

Alternate Servers

Attribute

AlternateServers (ASVR)

Description

Specifies a list of alternate OpenAccess SDK servers that the data provider will try to connect to if the primary OpenAccess SDK server is unavailable. Specifying a value for this attribute enables connection failover for the data provider.

Valid Values

string

where string is a list of alternate OpenAccess SDK servers.

The value must be in the form of a string that defines connection information for each alternate OpenAccess SDK server. The Host and Port values are required for each alternate server entry. Connection options (property=value) are optional for each alternate server entry. The string has the format:

The string has the format:

   (Host=servername1:Port=port1[:property=value[:...]],Host=servername2:Port=port2[:property=value[:...]],...)
  

Example

The following Alternate Servers value defines two alternate OpenAccess SDK servers for connection failover:

   Alternate Servers=(Host=AccountingSLServer:Port=13999:APPName=OpenAccess for ADO App,Host=AccountingAltServer:Port=13998:APPName=OpenAccess for ADO App)
  

IMPORTANT: If you specify an LDAP server in the Host connection attribute, the alternate servers must be LDAP servers. For example, the following Alternate Servers value defines three alternate LDAP servers for connection failover:

   Alternate Servers=(Host=ld1.foo.com:Port=389,Host=ld2.foo.com:Port=389,

   Host=ld3.foo.com:Port=389)

See Configuring Connection Failover for a discussion of connection failover.

Default

None

GUI Tab

Failover tab