mongodb安装

var map = function() {    emit(this.DNS_IP, {sum: this.DNS_TIME, count: 1});}var reduce = function(key, values) {    var sum = 0, count=0;    values.forEach(function(val) {        sum += Number(val.sum);        count += val.count;    });    return {"sum": sum, "count": count};}var finalfunc = function(key, value) {    return {"sum": Number(value.sum), "count": value.count, "avg": Number(value.sum/value.count)};}var colls = db.getCollectionNames();for (var i in colls) {    db.getCollection(colls[i]).mapReduce(map, reduce, {out: {reduce:"aresults"}, finalize: finalfunc})}//db.getCollection("360.xdwscache").mapReduce(map, reduce, {out: {reduce:"aresults"}, finalize: finalfunc})
var map = function() {    if (/^2016-10-02/.test(this.DETECT_TIME)) {        var successcount = (this.STATUS == "2" ? 0 : 1);        emit(            {"date": "2016-10-02", "PROVINCE_CODE": this.PROVINCE_CODE, "CARRY_COMPANY": this.CARRY_COMPANY},            {count: 1, success_count: successcount, fail_count: 1 - successcount}        );    }}var reduce = function(key, values) {    var count=0, successcount = 0, failcount = 0;    values.forEach(function(val) {        count += val.count;        successcount += val.success_count;        failcount += val.fail_count;    });    return {"count": count, success_count: successcount, fail_count: failcount};}var finalfunc = function(key, value) {    return {"count": NumberInt(value.count),            "success_count": NumberInt(value.success_count),            "fail_count": NumberInt(value.fail_count),            "fail_rate": 100*Number(value.fail_count)/Number(value.count)    };}var colls = db.getCollectionNames();for (var i in colls) {    db.getCollection(colls[i]).mapReduce(map, reduce, {out: {reduce:"aresults"}, finalize: finalfunc})}// db.getCollection("360.xdwscache").mapReduce(map, reduce, {out: {replace:"360.xdwscache.result", db: "dnsresult"}, finalize: finalfunc})