primary preferred mongodb
Use this setting to ensure that some members are more likely to become primary and that others can never become primary. The value of the member's priority ... ,Optionally, you also can force a member never to become primary by setting its members[n].priority value to 0 , which means the member can never seek ... ,Until the set is initialized no node will become the primary, and things are .... If you have queries you would prefer to never send to the primary you can specify ... ,... the following read preference modes: primary , primaryPreferred , secondary ... To set a read preference mode in the mongo shell, use the following operation:. ,All operations read from the current replica set primary. Multi-document transactions that contain read operations must use read preference primary . ,Read preference describes how MongoDB clients route read operations to the ... The following are common use cases for using non- primary read preference ... ,MongoDB applies write operations on the primary and then records the operations on ... See Read Preference for details on changing the default read behavior. ,Write Concern for Replica Sets: Write concern describes the level of acknowledgement requested from MongoDB for write operations. Read Preference: Read ... ,MongoDB drivers use a Server Selection algorithm to choose which replica set ... ,Each database in a sharded cluster has a primary shard that holds all the un-sharded collections for that database. Each database has its own primary shard.
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 primary preferred mongodb 相關參考資料
Adjust Priority for Replica Set Member — MongoDB Manual
Use this setting to ensure that some members are more likely to become primary and that others can never become primary. The value of the member's priority ... https://docs.mongodb.com Force a Member to Become Primary — MongoDB Manual
Optionally, you also can force a member never to become primary by setting its members[n].priority value to 0 , which means the member can never seek ... https://docs.mongodb.com High Availability and PyMongo — PyMongo 3.7.2 ... - MongoDB API
Until the set is initialized no node will become the primary, and things are .... If you have queries you would prefer to never send to the primary you can specify ... http://api.mongodb.com Mongo.setReadPref() — MongoDB Manual
... the following read preference modes: primary , primaryPreferred , secondary ... To set a read preference mode in the mongo shell, use the following operation:. https://docs.mongodb.com Read Preference Reference — MongoDB Manual
All operations read from the current replica set primary. Multi-document transactions that contain read operations must use read preference primary . https://docs.mongodb.com Read Preference — MongoDB Manual
Read preference describes how MongoDB clients route read operations to the ... The following are common use cases for using non- primary read preference ... https://docs.mongodb.com Replica Set Primary — MongoDB Manual
MongoDB applies write operations on the primary and then records the operations on ... See Read Preference for details on changing the default read behavior. https://docs.mongodb.com Replica Set Read and Write Semantics — MongoDB Manual
Write Concern for Replica Sets: Write concern describes the level of acknowledgement requested from MongoDB for write operations. Read Preference: Read ... https://docs.mongodb.com Server Selection Algorithm — MongoDB Manual
MongoDB drivers use a Server Selection algorithm to choose which replica set ... https://docs.mongodb.com Shards — MongoDB Manual
Each database in a sharded cluster has a primary shard that holds all the un-sharded collections for that database. Each database has its own primary shard. https://docs.mongodb.com |