elasticsearch怎么实现导入导出CSV
这篇文章主要介绍“elasticsearch怎么实现导入导出CSV”,在日常操作中,相信很多人在elasticsearch怎么实现导入导出CSV问题上存在疑惑,小编查阅了各式资料,整理出简单好用的操作方法,希望对大家解答”elasticsearch怎么实现导入导出CSV”的疑惑有所帮助!接下来,请跟着小编一起来学习吧!
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坦白说,这是第一个python程序,虽然看起来写的很烂,但是你放心,我试过了无毒,而且运行结果,既然是正确的!
导出CSV
import csv import sys import logging import datetime from elasticsearch import Elasticsearch reload(sys) sys.setdefaultencoding('gbk') logging.basicConfig() es = Elasticsearch() def exportCSV(indexName): count = 0 finish=False csvfile = file(indexName+'.csv','wb') writer = csv.writer(csvfile) starttime = datetime.datetime.now() searchRes = es.search(index=indexName,size=100,body={"query": {"match_all": {}}},search_type="scan",scroll="60s") while True: scrollRes=es.scroll(scroll_id=searchRes["_scroll_id"],scroll="60s",ignore=[400, 404]) res_list = scrollRes["hits"]["hits"] data=[] if not len(res_list) or finish: break if count==0: writer.writerow(tuple(res_list[0]["_source"].keys())) for item in res_list: #print tuple(item["_source"].values()) data.append(tuple(item["_source"].values())) count+=1 if count>=100000: finish=True break writer.writerows(data) csvfile.close() endtime = datetime.datetime.now() print "export size = "+str(count) print "export cost = "+str(endtime - starttime) if __name__=="__main__": exportCSV("test")
导入CSV
# -*- coding:utf-8 -*- import csv import sys import os import logging import datetime from elasticsearch import Elasticsearch from elasticsearch import helpers reload(sys) sys.setdefaultencoding('gbk') logging.basicConfig() es = Elasticsearch() def importCSV(indexName,typeName,fileName): if not os.path.exists(fileName): print "file not found" return actions=[] if not es.indices.exists(index=indexName,allow_no_indices=True): #print "not found index" es.indices.create(index=indexName,body={},ignore=400) for item in csv.DictReader(open(fileName, 'rb')): actions.append({"_index":indexName,"_type":typeName,"_source":encoding(item)}) res = helpers.bulk(es,actions,chunk_size=100) es.indices.flush(index=[indexName]) return len(actions) def encoding(item): for i in item: item[i]=str(item[i]).encode('utf-8') return item if __name__=="__main__": starttime = datetime.datetime.now() result=importCSV("test","base","test.csv") print "import size = "+str(result) endtime = datetime.datetime.now() print "import cost = "+str(endtime - starttime)
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本文标题:elasticsearch怎么实现导入导出CSV
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