从solr删除所有文件是
curl http://localhost:8983/solr/trans/update?commit=true -d "<delete><query>*:*</query></delete>"
向模式添加(静态)属性是
curl -X POST -H 'Content-type:application/json' --data-binary '{ "add-field":{"name":"trans","type":"string","stored":true, "indexed":true},}' http://localhost:8983/solr/trans/schema
删除一个属性是
curl -X POST -H 'Content-type:application/json' -d '{ "delete-field":{"name":"trans"}}' http://arteika:8983/solr/trans/schema
有没有办法从架构中删除所有属性?
至少在Schema API的6.6版本中,直到它的当前版本7.5,您可以在一个帖子中传递多个命令(分别参见6.6和7.5文档)。有多种可接受的格式,但最直观的格式(我认为)只是为您要执行的操作传递一个数组:
curl -X POST -H 'Content-type: application/json' -d '{
"delete-field": [
{"name": "trans"},
{"name": "other_field"}
]
}' 'http://arteika:8983/solr/trans/schema'
所以。我们如何获取要删除的字段的名称?这可以通过查询Schema来完成:
curl -X GET -H 'Content-type: application/json' 'http://arteika:8983/solr/trans/schema'
特别是,响应中的copyFields
对象中的dynamicFields
,fields
和schema
键。
我自动清除所有复制字段规则,动态字段规则和字段,如下所示。您当然可以使用任何可用的脚本。我使用的是Python 3(可能适用于Python 2,我没有测试过)。
import json
import requests
# load schema information
api = 'http://arteika:8983/solr/trans/schema'
r = requests.get(api)
# delete copy field rules
names = [(o['source'], o['dest']) for o in r.json()['schema']['copyFields']]
payload = {'delete-copy-field': [{'source': name[0], 'dest': name[1]} for name in names]}
requests.post(api, data = json.dumps(payload),
headers = {'Content-type': 'application/json'})
# delete dynamic fields
names = [o['name'] for o in r.json()['schema']['dynamicFields']]
payload = {'delete-dynamic-field': [{'name': name} for name in names]}
requests.post(api, data = json.dumps(payload),
headers = {'Content-type': 'application/json'})
# delete fields
names = [o['name'] for o in r.json()['schema']['fields']]
payload = {'delete-field': [{'name': name} for name in names]}
requests.post(api, data = json.dumps(payload),
headers = {'Content-type': 'application/json'})
请注意:我首先收到状态400响应,其中包含null
错误消息。有点困难,想弄清楚如何解决这些问题,所以我分享了对我有用的东西。将updateRequestProcessorChain
中solrconfig.xml
的默认值更改为false
(default="${update.autoCreateFields:false}"
)并重新启动Solr服务会使这些错误消失。我删除的字段是自动创建的,可能与此有关。