Related to SOLR-4200 - further reducing INFO verbosity

[Shawn Heisey <so...@elyograg.org>]

On my way to the train station this morning, after reading that Hoss had 
committed SOLR-4200, I had an idea for further reducing log verbosity at 
INFO.  I wanted to run it by everyone before I filed an issue.

Currently when you do a commit, you get a full list of every file in 
your index directory, and from what I can tell, you actually get that 
full list three times in two separate log messages.  Even with a low 
merge factor, this can be a LOT of files, so it's very large.  The 
information does have value, but I'm not sure that it has value at INFO.

I propose moving the full file list to a separate DEBUG log message. 
There could be some concern about being able to tie the shorter INFO 
message to the longer DEBUG message, especially in a busy multicore 
installation, so there would have to be something common in the two 
messages, such as the directory path.

Should I go ahead and file the issue for this?  I can probably cook up a 
starting point for the patch.  I don't expect it to be in 4.2.

Thanks,
Shawn


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