每个月执行一次任务，保存90天的mongo日志数据

用mongo 的dump 和 restore实现

shell版 

#!/bin/bash

mongodump --host 127.0.0.1 --port 27017 -d lewifi -c auditOrigData -q {time:{\$gt:1423478000}} -o ~/auditmongologchange

mongo <<EOF

use lewifi

db.auditOrigData.renameCollection('auditOrigData_back')

EOF

echo "restore"

mongorestore -h 127.0.0.1 --port 27017 --db lewifi  ~/auditmongologchange/lewifi/

rm -rf ~/auditmongologchange

 

nodejs版 主要代码

Task.prototype.backandChangeauditOrigData = function(){

    var starttoday=new Date();

    var todayyymmdd=tool.getYYMMDD(starttoday);

    starttoday.setDate(starttoday.getDate()-180);

    var datenum=tool.getDateCurTs(starttoday);

    var yymmdd=tool.getYYMMDD(starttoday);

    var dumpcommand='mongodump --host 127.0.0.1 --port 27017 -d lewifi -c auditOrigData -q {time:{\\$gt:'+datenum+'}} -o /Users/cdpmac/auditmongologchange';

    auditApi.execMonoOperaCommand(dumpcommand,function(dumperr,dumpout){

        console.log('dump\n'+dumperr+'\n'+dumpout);

        if(!dumperr){

            shenjiauditlogTestCollection.rename('auditOrigData'+yymmdd+'-'+todayyymmdd,function(renameerr,renameinfo){

                console.log('rename\n'+renameerr+'\n'+JSON.stringify(renameinfo));

                var restorecommand='mongorestore -h 127.0.0.1 --port 27017 --db lewifi  /Users/cdpmac/auditmongologchange/lewifi/';

                auditApi.execMonoOperaCommand(restorecommand,function(reserr,resout){

                        console.log('restore+\n'+reserr+'\n'+resout);

                        auditApi.execMonoOperaCommand('rm -rf /Users/cdpmac/auditmongologchange',function(rmerr,rmout){

                        })

                    }

                )

            })

        }

    });

}

execMonoOperaCommand内容

var exec = require('child_process').exec;



function execMonoOperaCommand(command, callback) {

    child = exec(command, function(error, stdout, stderr) {

        sys.print('error: \n' + error+"\n");

        sys.print('stdout: \n' + stdout+"\n");

        sys.print('stderr: \n' + stderr+"\n");

        callback(error,stdout);

    });

}