On 7/1/2013 3:24 PM, Niran Fajemisin wrote:
I noticed that for Solr 4.2, when an internal call is made between two nodes Solr uses the list of matching document ids to fetch the document details. At this time, it prints out all matching document ids as a part of the query. Is there a way to suppress these log statements from being created?
There's no way for Solr to distinguish between requests made by another Solr core and requests made by "real" clients. Paying attention to the IP address where the request originated won't work either - a lot of Solr installations run on the same hardware as the web server or other application that *uses* Solr.
Debugging a problem becomes very difficult if you come up with *ANY* way to stop logging these requests. That said, on newer versions the parameter 'distrib=false' should be included on those requests that you don't want to log, so an option to turn off logging of non-distributed requests might be a reasonable idea. I think you'll run into some resistance, but as long as it doesn't default to enabled, it might be something that could be added.
If you are worried about performance, update the logging configuration so that Solr only logs at WARN, that way no requests will be logged. If you then need to debug, you can change the logging to INFO using the admin UI, get your debugging done, and then turn it back down to WARN. This is the best logging approach from a performance perspective.
Thanks, Shawn
