ES索引备份

news/2024/10/4 7:07:54/

#!/usr/bin/env python
# -*- coding:utf-8 -*-"""
/**************************************************************
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获取ES中所有的文档数据
filename data_es.py
python3
"""import sys
import json
import requests# Python 3 默认字符串类型已经是Unicode，不需要设置默认编码host = "10.233.54.21"
port = 9200def dump_es_ids(scroll_name, scroll_id):"""循环发送请求获取所有es:return:"""url = f"http://{host}:{port}/_search/scroll"data = {"scroll": scroll_name,"scroll_id": scroll_id}header = {"Content-Type": "application/json"}response = requests.post(url, json=data, headers=header)response.raise_for_status()  # 检查HTTP请求是否成功return response.json()def get_scroll(size, scroll_name, index):"""获取第一批数据和scroll:return:"""url = f"http://{host}:{port}/{index}/_search?scroll={scroll_name}"data = {"size": size,"query": {"match_all": {}}}header = {"Content-Type": "application/json"}response = requests.post(url, json=data, headers=header)response.raise_for_status()  # 检查HTTP请求是否成功return response.json()def has_more(result_obj, index):"""查看是否还有更多数据:param result_obj::return:"""try:obj_list = result_obj["hits"]["hits"]if len(obj_list) > 0:print(f"[INFO] index {index} has more data")return Trueelse:return Falseexcept Exception as e:print(f"[ERROR] got error {e}")return Falsedef get_id_list(result_obj):"""从结果集中获取id列表:param result_obj::return:"""obj_list = result_obj["hits"]["hits"]id_list = [item["_source"] for item in obj_list]return id_listdef main():"""获取文档的所有id:return:"""index = sys.argv[1]out_file = sys.argv[2]scroll_name = "5m"size = 1000scroll_obj = get_scroll(size, scroll_name, index)scroll_id = scroll_obj["_scroll_id"]print(f"[INFO] scroll_id is {scroll_id}")result_obj = scroll_objcounter = 0with open(out_file, "w") as out:while has_more(result_obj, index):counter += len(result_obj["hits"]["hits"])result_obj_list = get_id_list(result_obj)print(f"[INFO] index {index} get data length {len(result_obj_list)}")result_obj = dump_es_ids(scroll_name, scroll_id)print(f"[INFO] index {index} list total length {len(result_obj_list)}")print(f"[INFO] index {index} now total logs {counter}")for obj in result_obj_list:out.write(f"{json.dumps(obj, ensure_ascii=False)}\n")if __name__ == '__main__':main()

host = "10.92.204.60" # 修改成对应elasticsearch-master svc的IP   ,  port = 9200

# 找到svc
kubectl get svc -n mpks | grep elasticsearch# 先查看全文索引(导出的索引需要跟rd和drd确认)
curl http://ELASTICSEARCH_MASTER_IP:9200/_cat/indices | grep "fulltext" 备份执行  curl http://10.233.54.21:9200/_cat/indices | grep "fulltext" | awk -F" " '{if($7>0)print $3}'|awk '{print "touch ",$1," && python3 data_es.py ",$1," ",$1 }' |bash

常见问题：未找到request库
# 方式1pip install request -i https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn

#方式2 去官网下载https://pypi.org/project/requests/#files 然后到解压后的目录去执行：