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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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Setting up master/slave replication databases within my Vagrant box

Currently, I am using Vagrant 1.4.3 in-conjunction with VirtualBox running Unix (Centos) for my development server (using MariaDB). I didn't setup the box myself (so my knowledge of setting this up is limited) I would basically like to do the…
Zabs
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Warning: Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT

Full error: Warning: Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT. Statements writing to a table with an auto-increment column after selecting from another table are unsafe because the order in…
DanH
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On RDS can I create Tables in a Read Replica that are not present on the Master?

We have a separate RDS Instance to handle session state tables, however found that the session DB load is very low. if we can convert the instance handling session as a Read Replica of the main DB, then we can use it for read-only tasks that are…
Subramanyam
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Master-slave vs peer-to-peer distributed computing

HBase has a master-slave model, while Cassandra has a peer-to-peer model. I am aware that in a master-slave model, the master is a SPOF (Single Point of Failure) and there is no such thing in a peer-to-peer model. Are there any other pros and cons…
Praveen Sripati
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Hudson -- Step by step guide to set up master and slave machines

As you can see, the link to that on the hudson website is dead. So, I was hoping for a little step by step for setting up a windows slave with a linux master. I managed to setup hudson on the windows machine, but how do i link the slave to report…
Mahdi Yusuf
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Everytime I run cluster.fork(), I get a Error: bind EADDRINUSE

I'm using node.js, and using the cluster module. Everytime I run cluster.fork(), I always get a throw er; // Unhandled 'error' event Error: bind EADDRINUSE at exports._errnoException (util.js:746:11) at cb (net.js:1205:33) at rr…
Gakho
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Rails: How to split write/read query across master/slave database

My website has a very heavy read traffic. A lot heavier than write traffic. To improve the performance of my website I have thought of going with master/slave database configuration. The octupus gem seems to provide what I want, but since my app is…
Sanjay Salunkhe
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What is the difference between binlog-do-db and replicate-do-db?

I'm a beginner for MySQL Master-Slave . and I have read two tutorials . How to Setup MariaDB (Master-Slave) Replication Setup MariaDB Master-Slave Replication In first tutorial. It make me that [mysqld] Master…
gclove
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SSH Key authentication failing when connecting Mac Hudson slave to Linux master

Ok, so I have Hudson (v1.393) running in an Ubuntu VM and everything's working fine. However I'm trying to add a Mac slave to the Ubuntu master and I've run in to a few problems. I have set up SSH keys so that from the command line, the Ubuntu VM…
mattbilson
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Master / Slave switch in the Zend Framework application layer

I am writing an application which requires the Master/Slave switch to happen inside the application layer. As it is right now, I instantiate a Zend_Db_Table object on creation of the mapper, and then setDefaultAdapter to the slave. Now inside of…
Pro777
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How to write the Mysql binary log position of master when doing a mysqldump from slave?

I am currently running mysqldump on a Mysql slave to backup our database. This has worked fine for backing up our data itself, but what I would like to supplement it with is the binary log position of the master that corresponds with the data…
wbharding
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How to separate Master Slave (DB read / writes) in Flask Sqlalchemy

I'm trying to separate the Read and write DB operations via Flask Sqlalchemy. I'm using binds to connect to the mysql databases. I would want to perform the write operation in Master and Reads from slaves. There does not seem to be an in built way…
Nands
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ZooKeeper - adding peers dynamically?

I'm new to ZooKeeper. This is what I need. I've a network of peers. At t=t_1 -> [peer-1 (Leader), peer-2] peer-1 is the master and all clients connect to this node. At t=t_2 -> [peer-1 (Leader), peer-2, peer-3] At some later time peer-3 joins the…
Soumya Simanta
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Master Slave Configuration in Laravel 5.5

How to configure Laravel 5.5 with master slave MySQL replication ? I want to make write operations and read operations in master and slave respectively . Optional: Is there any way to do connection pooling and max / min no of open connections in…
Subhajit
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apache spark master ui not working

Hey all I have a simple 2 node cluster 1 master and 1 slave(hadoop and spark). Everything was working fine but for some reason now when I launch the master spark I can't connect to the master web ui(port 8081 i set it explicitly in the spark-env.sh…
Neil
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