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authorNarayan Desai <desai@mcs.anl.gov>2005-10-18 23:00:21 +0000
committerNarayan Desai <desai@mcs.anl.gov>2005-10-18 23:00:21 +0000
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-1. what we aren't
-
-I feel the need to write this to describe why our approach isn't the
-same as the LDAP approach. When designing any metadata-based
-configuration management system, there is substantial temptation to
-start describing all aspects of the system that are relevant to system
-configuration. This approach leads to a few things. First, there are
-many long discussions that center around the proper representation
-for particular constructs. (ie, what attributes does a network
-interface have) The second outcome is that configuration details that
-might get used are typically included. This stems from the desire to
-have a comprehensive solution. The third, and most useful outcome is a
-large knowledge base from which many details of system configuration
-can be queried. This, in general, is a noble goal, but tends to
-require a lot of pain to get there.
-
-Switching to a BCFG1 install involved a good amount of pain/effort in
-order to classify software components into categories dictated by our
-model. I am not sure how well a more complicated process would be
-accepted by any user community.
-
-2. how to do better
-
-Any system will have complex portions of configuration, and
-site-specific oddities. A single, simple description scheme certainly
-won't provide the flexibility required to model complex
-interdependencies. The approach we are taking is to provide a simple
-scheme while allow arbitrary logic to be embedded. (generators) Using
-this scheme, simple configurations remain simple, and complex
-configurations are possible.