Connection Managers and Aliases


at work, use instance of sql server named workserver\sql.

at home, run local instance of sql server called homeserver.

i use visual studio database projects quite heavily in conjunction ssis projects, there kinds of references workserver\sql in solutions/projects.

on home workstation, if create alias called workserver\sql "points" homeserver, can use various tools make sql connections without error. includes visual studio (database projects), ssms, , red-gate tools. expected.

ssis appears exception. my packages have connection managers reference workserver\sql , when @ properties of connection manager , click test connection, test succeeds, reference workserver\sql on home workstation.

when run package in vs, times-out , following error generated:

an ole db record available. source: "microsoft sql native client" hresult: 0x80004005 description: "sql network interfaces: error locating server/instance specified [xffffffff]. 

 

why properties window of connection manager recognize alias @ design time, @ debug/runtime error occurs?

i know configurations preferred method of making packages portable, not question. i want know how ssis resolves aliases.

thanks all.

maybe 64-bit issues? haven't ever heard aliases don't work ssis, might true since haven't heard them all.  

aliases specific bitness. if have 64-bit server, design time bids/visual studio 32-bit, runtime dtexec.exe , dtsdebughost.exe 64-bit.

you can control using property run64bitruntime in solution properties. screenshot @ http://dougbert.com/blogs/dougbert/archive/2009/03/16/debug-your-package-in-32-bit-or-64-bit-mode.aspx

both 32-bit , 64-bit aliases can set via sql server configuration manager in start menu.

thanks, jason
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