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Questions tagged [replicaset]

This tag is used mostly for a MongoDB replica set (a group of "mongod" processes that maintain the same data set) and rarely for a Kubernetes ReplicaSet (the next-generation Replication Controller with set-based selector support).

583 questions
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errmsg" : "No host described in new configuration 1 for replica set rs0 maps to this node", Why I am getting this message?

I am getting this message every time I do rs.initiate() : No host described in new configuration 1 for replica set rs0 maps to this node This is how my /etc/hosts/ file looks on both the replica set servers. Server 1 and server 2 "hosts"…
Shashank
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What is the difference between a cluster and a replica set in mongodb atlas?

I'm taking the Mongodb University M103 course and over there they gave a brief overview of what a cluster and a replica set is. From my understanding a cluster is a set of servers or nodes. While a replica set is a set of servers or nodes all of…
Devorein
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3 answers

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

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…
NitheshKHP
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4 answers

Single Instance Mongodb Replica Set - cannot perform query/insert operations

After installing mongodb, I ran mongod with mongod --dbpath --logpath --replSet rs0 I then connected with the mongo shell and ran rs.initiate() I then tried to insert a document into a collection, but received an error: >…
d0c_s4vage
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10
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3 answers

MongoDB Error: Unable to reach primary for set [set_name] when connect to mongo replica set

I'm trying to connect to MongoDB replica set consists of 3 mongo docker-container, but Error Message: Unable to reach primary for set rs0 occurs. Git Repository: https://github.com/frontalnh/mongodb-replica-set I made docker swarm consists of 3…
Namhoon Lee
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1 answer

How to handle pymongo AutoReconnect exception with insert_many method

I have a MongoDB replica set with 3 members and a Python application which stores data in it. I can handle pymongo's AutoReconnect exception when using single document inserts with a wrapper as follows: def safe_mongo_call(method, num_retries,…
Tomáš Linhart
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1 answer

"This node was not started with the replSet option"

I am studying the MongoDBUniversity's M101P: MongoDB for Developers course. I am using WiredTiger on MongoDB 3.2. I am currently on the topic of replica sets. The course requires I create a replica set using the following code: mongod…
Jake Stokes
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4 answers

mongodb : could not find member to sync from

I'm fairly new with mongodb I have a replica set 3 nodes 1 primary (A) 1 secondary (B) 1 Arbiter (C) The replica set was created using MMS the 3 node are in 3 different cities I keep on getting the following error on the secondary that last for lest…
Philippe Courtois
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2 answers

Connection to MongoDB replica set takes a minute+ in PHP when a secondary is unreachable

I have a replica set consisting of 5 members: primary+arbiter on server 1, secondary+arbiter on server 2, hidden secondary (backup node) on server 3. I expect this configuration to work if one server goes down or loses connectivity…
mephisto123
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2 answers

How to determine ops cause getMore operations on a MongoDB server

I am seeing the following in mongostat on the primary server in my replicate set: insert query update delete getmore command flushes mapped vsize res faults locked db idx miss % qr|qw ar|aw netIn netOut conn set repl time …
Ben Zittlau
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9
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6 answers

Replicaset doesnot update pods in when pod image is modified

I have created a replicaset with wrong container image with below configuration. apiVersion: extensions/v1beta1 kind: ReplicaSet metadata: name: rs-d33393 namespace: default spec: replicas: 4 selector: matchLabels: name:…
Sravan Kumar
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9
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2 answers

pymongo unable to connect to primary

I'm trying to find_one by connecting to my replica set's primary node. MongoClient(hostname, replicaSet="rs0", read_preference=ReadPreference.PRIMARY) But it results in an error: ServerSelectionTimeoutError: No replica set members match selector …
Green Cell
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2 answers

Mongodump with Replica Set : how to force on secondary?

I have a strange problem with my MongoDB Replica Set backup. I have 2 servers (one primary and one secondary) and I run a backup task every 2 hours. I use this: mongodump.exe --db MyBase --out "d:\Backups" But, when I run this backup, my client…
Fred Mériot
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How can I connect a mongodb replicaset using mongoengine?

I'm trying to connect to a MongoDB replicaSet using MongoEngine? I would like to connect to any available secondary server. I can only find pyMongo examples. Any help?
rat
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1 answer

Enabling MongoDB transactions without replica sets or with least possible configuration

[Some background information - possibly skippable] To begin with, I have barely any understanding of database management and just shallow experience with mongoose and node in the backend realm(a couple of udemy courses). Udemy courses made me…
fly
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