While running some tests on the pool software, I see lots of clients being dropped.

What do you make of this:

[2015-07-17 02:33:05.328] Client id 753 fd 22 RDHUP in epoll
[2015-07-17 02:33:05.329] Connector dropped client 753 fd 22
[2015-07-17 02:33:05.329] Opened client path /tmp/ckpool/stratifier successfully on socket 14
[2015-07-17 02:33:05.329] Closing file handle 14
[2015-07-17 02:33:05.329] Closing file handle 9
[2015-07-17 02:33:05.329] Connector recycling client 750
[2015-07-17 02:33:05.329] Closing file handle 744
[2015-07-17 02:33:05.329] Stratifier received request: dropclient=753
[2015-07-17 02:33:05.329] Stratifier asked to drop client 753
[2015-07-17 02:33:05.329] Dropped client 753 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Is this normal behavior or a problem?