pymongo 复制辅助读取引用不起作用
pymongo replication secondary readreference not work
我们有 MongoDB 2.6 和 2 副本集,我们使用 pymongo
驱动程序并将 Mongo 副本集与以下 url
连接
mongodb://admin:admin@127.0.0.1:10011:127.0.0.1:10012,127.0.0.1:10013/db?replicaSet=replica
使用 python 代码
from pymongo import MongoClient
url = 'mongodb://admin:admin@127.0.0.1:10011:127.0.0.1:10012,127.0.0.1:10013/db?replicaSet=replica'
db = 'db'
db = MongoClient(
url,
readPreference='secondary',
secondary_acceptable_latency_ms=1000,
)[db]
db.test.find_one()
# more read operations
但事实证明连接没有从辅助副本集读取任何内容,在这 2 个辅助副本集上的 mongo 日志中找不到连接日志
尝试配置 ReplicaSetConnection。例如:
>>> db = ReplicaSetConnection("morton.local:27017", replicaSet='foo').test
>>> from pymongo import ReadPreference
>>> db.read_preference = ReadPreference.SECONDARY
我们有 MongoDB 2.6 和 2 副本集,我们使用 pymongo
驱动程序并将 Mongo 副本集与以下 url
mongodb://admin:admin@127.0.0.1:10011:127.0.0.1:10012,127.0.0.1:10013/db?replicaSet=replica
使用 python 代码
from pymongo import MongoClient
url = 'mongodb://admin:admin@127.0.0.1:10011:127.0.0.1:10012,127.0.0.1:10013/db?replicaSet=replica'
db = 'db'
db = MongoClient(
url,
readPreference='secondary',
secondary_acceptable_latency_ms=1000,
)[db]
db.test.find_one()
# more read operations
但事实证明连接没有从辅助副本集读取任何内容,在这 2 个辅助副本集上的 mongo 日志中找不到连接日志
尝试配置 ReplicaSetConnection。例如:
>>> db = ReplicaSetConnection("morton.local:27017", replicaSet='foo').test
>>> from pymongo import ReadPreference
>>> db.read_preference = ReadPreference.SECONDARY