Friday, May 14, 2004

Application Configuration





Has anyone thought well and hard about application configuration?


http://www.itworld.com/nl/ebiz_ent/03042003/


First on, what is ACAP?

ACAP is an IETF standard. RFC 2244


http://www.ietf.org/rfc/rfc2244.txt



http://www.ietf.org/ids.by.wg/acap.html



http://asg.web.cmu.edu/acap/ietf-acap-info.html


http://asg.web.cmu.edu/acap/



http://www.ietf.org/ids.by.wg/acap.html


How does it rate against other protocols?




http://asg.web.cmu.edu/acap/white-papers/acap-vs-others.html


Summary of the comparisons against other protocols



M. Wall [Page 3]



Internet DRAFT ACAP VS. OTHER PROTOCOLS September 11, 1996





PROTOCOL/APPROACH

 




















































































































    ACAP LDAP,et al DHCP SNMP HTTP DNS NFS,AFS et al Data bases
FEATURE Disconnected use Yes No No No No No*1 No*2 No*3
Client-writable Yes Yes No Yes*4 No No Yes Yes
Potentially Large Yes Yes No ? No No Yes Yes
Access Control List Yes Yes No Yes No No Yes No
User Storage Yes No No No ? No Yes No
Client-Definable Yes No No No ? Yes*5 Yes Yes
Per-userSecurity Yes Yes ? No ? No Yes Yes
Server-searching Yes Yes No ? No No No*6 Yes
client/server Yes Yes Yes Yes Yes Yes No No
non-proprietary Yes Yes Yes Yes Yes Yes No No

Yes = has this characteristic
No = does not have this characteristic
? = not fully implemented or unclear if this could support this feature
* = qualified yes or no, see footnote


This chart addresses capabilities, not necessarily typical use

(such as SNMP's client-writing capability).



NOTES:



1. Only via the cache, which is static and non-authoritative.

2. Typically limited scalability; limited real use.

3. Transaction-locking models make this highly implementation-dependent.

4. The MIB is typically authoritative, however.

5. Usually used for limited local override, i.e. trusting a hosts file.

6. Some filesystems can search, but usually without much structure.

Most don't except through OS extensions, anyway.





Any White Papers?




http://asg.web.cmu.edu/acap/white-papers/


Any implementations?



Servers

Infotrope ACAP Server


Clients



http://www.cyrusoft.com/mulberry/


Any other stuff that might be interesting?




GConf – Gnome Configuration
System





Configuration maintenance for distributed applications management




Patterns for
Concurrent, Parallel, and Distributed Systems


 


CfEngine



EDG Fabric Management



Epio Business
Server






SmartFrog - Smart Framework
for Object Groups





The MANDAS Project




Tivoli



Some More Links




http://freedesktop.org/pipermail/xdg/2004-April/003870.html



http://asg.web.cmu.edu/acap/white-papers/imsp-white.html


 


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