如何缓存hbase数据以减少下次取数据的时间

 1 function enterSearch(plate)
 2     {
 3         searchPlateBegin = new Date();
 4         var plateArray = new Array();
 5         var convertReverseArray = new Array();
 6         if(regex_cache[plate] == null)
 7         {
 8 
 9             var strRegEx = convertInput(plate);
10             var regEx = new RegExp(strRegEx);
11             regEx.compile(regEx);
12 
13 
14             for (var i = 0;i < keyArrayConvert.length;i++)
15             {
16                 if (regEx.test(keyArrayConvert[i]))
17                 {
18                     convertReverseArray.push(keyArray[i]);
19                     plateArray.push(keyArrayConvert[i]);
20                 }
21             }
22 
23             var cacheFileName = (++write_regex_cache_count).toString() + ".json";
24 
25             fs.writeFile("./cache/"+cacheFileName,JSON.stringify(convertReverseArray),function(err){
26                 if(err) throw err;
27                 regex_cache[plate] = "./cache/"+cacheFileName;
28 
29 
30             });
31 
32             var cacheFileName_convert = (++write_regex_cache_count_convert).toString() + "_decoded.json";
33 
34             fs.writeFile("./cache/"+cacheFileName_convert,JSON.stringify(plateArray),function(err){
35                 if(err) throw err;
36                 regex_cache_convert[plate] = "./cache/"+cacheFileName_convert;
37 
38             });
39 
40             searchPlateEnd  = new Date();
41 
42         }
43         else
44         {
45             searchPlateEnd  = new Date();
46             convertReverseArray = JSON.parse(fs.readFileSync(regex_cache[plate],‘utf8‘));
47             plateArray = JSON.parse(fs.readFileSync(regex_cache_convert[plate],‘utf8‘));
48 
49         }