parseHotThreads = function(response) {
        var threads = new HotThreads(response).nodes_hot_threads;
        success(threads);
      }
Get hot threads

@param {string} node - The target node(or empty if all)
@param {string} type - the type of threads to be sampled
@param {string} threads - The number of threads to be sampled
@param {string} interval - The sampling interval in ms
@param {boolean} ignoreIdleThreads - Ignores idle threads or not
@callback success
@callback error