High Availability Guide : Using HotStandby with applications : Basic Connectivity
  
Basic Connectivity
With Basic Connectivity, the application has to take care of connecting to each server of the HotStandby or Cluster configuration separately, by using specific server addresses. If a failover happens, the active connection is lost, and the application has to reconnect to the new Primary server.
Basic Connectivity syntax
The Basic Connectivity uses the standard solidDB® connect string syntax:
protocol_name [options] [host_computer_name] server_name
where:
▪options can be any combination of the following:
Option
Description
Protocol
-4
Specifies that client connects using IPv4 protocol only.
TCP/IP
-6
Specifies that client connects using IPv6 protocol only.
In Windows environments, this option is mandatory if IPv6 protocol is used.
TCP/IP
 
-isource_address
Specifies an explicit connecting socket source address for cases where the system default source IP address binding does not meet application needs.
source_address can be an IP address or a host name.
TCP/IP
-z
Enables data compression for the connection
Important:
▪Data compression is not available for HotStandby connections (HotStandby.Connect) and NetBackup connections (ADMIN COMMAND 'netbackup').
Data compression for netcopy connections cannot be enabled with the -z option. Instead, use the HotStandby.NetcopyRpcCompress=yes parameter setting.
All
-c milliseconds
Specifies the login timeout (the default is operating-system-specific). A login request fails after the specified time has elapsed.
TCP/IP
-r milliseconds
Specifies the connection (or read) timeout. A network request fails when no response is received during the time specified. The value 0 (default) sets the timeout to infinite (operating system default timeout applies).
TCP/IP
-ofilename
Turns on the Network trace facility and defines the name of the trace output file.
See “Network trace facility” in the solidDB® Administrator Guide for details.
All
-plevel
Pings the server at the given level (0-5).
Clients can always use the solidDB® Ping facility at level 1 (0 is no operation/default). Levels 2, 3, 4 or 5 may only be used if the server is set to use the Ping facility at least at the same level.
See “Ping facility” in the solidDB® Administrator Guide for details.
All
-t
Turns on the Network trace facility
See “Network trace facility” in the solidDB® Administrator Guide for details.
All
▪host_computer_name is needed with TCP/IP and Named Pipes protocols, if the client and server are running on different machines.
▪server_name depends on the communication protocol:
▪In TCP/IP protocol, server_name is a service port number, such as 2315.
▪In other protocols, server_name is a name, such as solidDB or chicago_office.
For details on the syntax in different communication protocols, see Communication protocols in the solidDB® Administrator Guide.
Notes
▪The protocol_name and the server_name must match the ones that the server is using in its network listening name.
▪If given at the connection time, the connect string must be enclosed in double quotation marks.
▪All components of the connect string are case insensitive.
For example:
Connect=tcp srv1.dom.acme.com 1315
See also
Reconnecting to primary servers from applications
Reconnecting to secondary servers
Using HotStandby with applications