Minor Description
I see tons of this while running tests (note that it's a WARN):
2012-04-03 18:54:47,172 WARN org.apache.hadoop.hbase.io.hfile.HFile: Dropping fs latency stats since buffer is full
While the code says this:
// we don't want to fill up the logs with this message, so only log it
// once every 30 seconds at most
// I also want to avoid locks on the 'critical path' (the common case will be
// uncontended) - hence the CAS
private static void logDroppedLatencyStat() {
It doesn't seem like this message is actionnable and even though it's printed "only" every 30 seconds it's still very spammy.
We should get rid of it or make it more useful (I don't know which).