How to set rs.slaveOk() in secondary mongodb servers in replicaset via commandline?

mongodb replicaset
NitheshKHP picture NitheshKHP · Oct 27, 2015 · Viewed 24.5k times · Source

How to set rs.slaveOk() in secondary mongodb servers in replicaset via commandline?

I tried following methods :

${MONGO_HOME}/bin/mongo --port ${MONGO_PORT2} --host ${MONGO_SECONDARY2} --eval "printjson(rs.slaveOk())"

${MONGO_HOME}/bin/mongo --port ${MONGO_PORT2} --host ${MONGO_SECONDARY2} --eval "printjson(rs.slaveOk(true))"

${MONGO_HOME}/bin/mongo --port ${MONGO_PORT2} --host ${MONGO_SECONDARY2} --eval "printjson(db.getSiblingDB('admin').getMongo().setSlaveOk())"

the command executes with undefined in the output log. I am trying to set this via the shell in primary server.

Answer

goral picture goral · May 4, 2016

Create a file /etc/mongorc.js and add rs.slaveOk() there. The file is being evaluated on each shell startup.

For more information have a look here

From MongoDB version 4.4 onwards, you might get a warning displayed like:

WARNING: slaveOk() is deprecated and may be removed in the next major release. Please use secondaryOk() instead.

So, please prefer using rs.secondaryOk()

Related questions

How to convert a MongoDB replica set to a stand alone server

Consider, I have 4 replicate sets and the config is as follows: { "_id": "rs_0", "version": 5, "members" : [ {"_id": 1, "host": "127.0.0.1:27001"}, {"_id": 2, "host": "127.0.0.1:27002"}, {"_id": 3, "host": "127.0.0.1:27003"}, {"_id": 4, "host": "127.0.0.1:27004"} ] } I am able to connect to all sets using mongo --port <port> There are documents …

Read More
How to check secondary is synced now or not

there is the replica with three member (primary,secondary,secondary). Suppose one of secondaries down for a day, after return secondary back to replica how can i find, is it synced yet or not? I did that in testing environment, …

Read More
MongoDB Connection String to Replica Set

I am looking at http://mongodb.github.io/node-mongodb-native/driver-articles/mongoclient.html and when you scroll to the section "A replicaset connect using no acknowledgment by default and readPreference for secondary" it stated a connection string to replica set like …

Read More