[CASSANDRA-625] Migrate to slf4j from log4j in cassandra code

• Type: Improvement
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 0.7 beta 1

Environment

all

• Assignee: Unassigned
• Reporter: gabriele renzi
• Created: 11/Dec/09 07:58
• Updated: 16/Apr/19 09:33
• Resolved: 12/Mar/10 20:02

Description

currently code generated from thrift uses slf4j while cassandra uses raw log4j.
There are various level in which this can be changed:

• simply switch log4j loggers with slf4j logger (done in patch)
• replacing log4j-isms (e.g. string concatenation+isFooEnabled in all code paths) with slf4j-isms (marker string + additional arguments)
• remove code that is already available for lsf4j (LogUtils.java, I believe is unnecessary)

I am posting this as a reminder, I have a half baked patch locally but it needs more work