We had one of our users post this issue: http://apacheignite.readme.io/v1.0/discuss/5515a26fb2473817004172f8
The concern from the user is that the iteration may be taking too long. I have looked at the code and am seeing some questionable parts there, like parallel iteration and AtomicLong.incrementAndGet() for every entry which probably does a lot of spinning. Would be nice of anyone tried this code and check if this issue is reproducible or can be fixed. Perhaps use LongAdder instead of AtomicLong? D.
