Question regarding major compaction.

[Fredrik]

In the tuning documentation regarding Cassandra, it's recomended not to 
run major compactions.
I understand what a major compaction is all about but I'd like an in 
depth explanation as to why reads "will continually degrade until the 
next major compaction is manually invoked".

From the doc:
"So while read performance will be good immediately following a major 
compaction, it will continually degrade until the next major compaction 
is manually invoked. For this reason, major compaction is NOT 
recommended by DataStax."

Regards
/Fredrik