/opt/mapr/zookeeper/zookeeper-3.4.5/conf/zoo.cfg specifies ZooKeeper configuration parameters.
# The number of milliseconds of each tick
# The number of ticks that the initial
# synchronization phase can take
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
# the directory where the snapshot is stored.
# the port at which the clients will connect
# max number of client connections
maxClientCnxns limits the number of concurrent ZooKeeper connections that a single client machine may make. This value does not set a limit for the whole cluster. The default is 100. If you plan to run more than 100 jobs from a single node, increase this value.