Questions tagged [master-slave]

A master/slave protocol involves one dominant participant (the master) controlling communication with one or more other participants (slaves). Prefer to tag the specific protocol, such as "i2c". For master/slave database replication, prefer "replication".

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how to setup multi master nodes in hadoop(2 masters and 4 slaves)?

I am trying setup a hadoop cluster in which i had already setup 1 master and 4 slave.Now I am trying to make redundant master and redundant slaves. How do i make 2 master (redundant master) and redundant slaves in my cluster? please help..
yogendrask
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Redis configuration for production

I'm developing project with redis.My redis configuration is normal redis setup configuration. I don't know how should I do redis configuration? Master-Slave? Cluster? Do you have anything suggestion redis configuration for production?
ujava
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MongoDB in master slave mode and guarantee writing

I got some problems with using mongoDB. I use mongoDB in Master-Slave mode in 2 shards. Each shard has 3 members of Replica Set: 1 master and 2 slaves. When I'm writing document in mode REPLICA_SAFE or REPLICA_ACKNOWLEDGED and if I try to read it…
Malahov
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How to get current HDD type?

I've found a way to get hdd serial no in vb6. But it needs to select an option from primary master primary slave secondary master secondary slave But I want to auto select an option. The auto select logic is, suppose I've 4 HDD with the above…
Krishanu Dey
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The Multiple Driver error in system verilog

I was creating a code for the i2c slave. I am using a counter to change state, however I am encountering the error. The state machine that I was creating is for the single write and single read cycle. I2C Protocol Image Multiple drivers to always_ff…
Lmdocmp
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I2C Master-slave address

I am working on a project where I'm trying to implement I2C master-slave communication so as to read some data from a magnetic sensor. That's all OK and I have written the code. However, I am not quite sure about the slave address needed for the…
Strale030
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How to read Energy meter readings over serial port using COM port?

I have interfaced my Energy Meter with RS232, and then used a RS232-to-USB-Cable to interface with my PC. My Energy Meter uses Modbus Protocol. I get readings like these through Modbus Slave / Modbus Poll software. How do I get it in the right…
Abhay Bh
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arduino global variable using I2C and LCD

I'm using Arduino Uno in my project : One is a Master and the other is a Slave. I send Data from the Master to the Slave using I2C. I need to send float, but because I2C can only send char, so I'm obligated to transform float into String, then send…
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How to write a shell script to find out which node is acting as a master in CQ5 cluster environment

I have my Adobe CQ5 servers in Linux environment (Redhat). I have to write a shell script to find out which node is acting as a Master presently in CQ5 Cluster environment. My CQ5 clustering environment includes 1 author acting as Master node and…
Komal Arora
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Jamod slave example

I need to make a program in Java using jamod or j2mod I'm searching for examples but I don't understand how it works. I need to connect to an equipment with modbus support, for example if I send a string like "date" the equipment responses the…
Pablo Aleman
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