1
vote
3answers
52 views

Deleting data from a large table with replication

I need to delete all the rows from a given table. The table contains millions or records. The master database is being replicated to several slaves and I wish to do that without creating a replication ...
0
votes
1answer
27 views

Dealing with Mysql Replication and Functions

In MySQL replication Master-Slave, is there anyway to deal with the functions: LOAD_FILE() UUID(), UUID_SHORT() USER() FOUND_ROWS() SYSDATE() GET_LOCK() IS_FREE_LOCK() IS_USED_LOCK() ...
1
vote
1answer
22 views

Is there any drawback of MIXED replication mode?

So, recent mysql server allows three types of replication mode: STATEMENT, ROW, MIXED. They all have pros/cons, and I pick the mode according to site characteristics. When I get a replication error I ...
0
votes
0answers
29 views

MySQL Binlog Dump process stops after net_write_timeout

We have 2 MySQL 5.6.19-1 servers with master-master replication that were working fine (DB01 and DB02). One of them was rebooted unexpectedly (DB01) and seemed to be working fine, but we saw that the ...
0
votes
1answer
29 views

MySQL 5.6 replication causes 'waiting for table lock'

All of the sudden queries on slave server stopped with status "Waiting for table level lock" I restart mysql service and stop replications and locking does not show up anymore. Once I turn ...
0
votes
0answers
14 views

mysql replication error 1236 need to restart replication process

I'm using mysql replication and the slave/master crashed in the process and then I got: Got fatal error 1236 from master when reading data from binary log: 'Could not find first log file name in ...
0
votes
1answer
22 views

How to use mysql live update on a mysql table between localhost and remote server?

I have mysql table created/modifying in localhost, and I need to update those in my remote database. I have gone through lot of post regarding this scenario and I found out that I need to use mysql ...
1
vote
1answer
26 views

MySQL replication duplicate key errors after error 1594

So I had this happen to me recently: mysql> show slave status\G; *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event ...
0
votes
2answers
29 views

Create table on a Master - Master config avoiding replication

I have a Master-Master configuration. What I want is to create an auxiliary table only for a report project so it's not necessary to replicate it. Is there a specific way to make this in the CREATE ...
0
votes
0answers
15 views

MySQL - Checksum won't match between master and slave hosts despite dumping and reloading the table [duplicate]

I am playing around with table checksums and I am puzzled as to why I cannot get two checksums to match. I have two hosts, one being a slave for replication. I have a particular problem table that ...
1
vote
2answers
44 views

How to swap roles of Master-Master?

I've just taken over the responsibility of managing our MySQL databases. We're running Percona Server (GPL), Release rel24.1, Revision 217. Our setup involves two servers both running as master and ...
0
votes
1answer
25 views

Why does my MySql Savel replicate changes that are neither in binlog_do_db nor replicate_do_db?

I have a standard simple master slave replication that usually runs fine. But sometimes, all of a sudden, I get replication errors on the "phpmyadmin" table. I have explicitly only specified one ...
0
votes
0answers
46 views

MySQL 5.6: explicit_defaults_for_timestamp

I have the following replication topology: DB1 (MySQL 5.5) -> DB2 (MySQL 5.6, explicit_defaults_for_timestamp = 1) -> DB3 (MySQL 5.6, explicit_defaults_for_timestamp = 1) - "date" field: ...
1
vote
0answers
44 views

MySQL master slave replication not working

I had MySQL master slave running and working fine but suddenly it stopped. I don't know which commands have been executed but now replication is not working. I am very new to MySQL can anyone help me? ...
0
votes
0answers
40 views

How to split task (read and write) between two mysql server via HAproxy load balancing?

I have done some test and setup two (A and B) different database server from the following link - https://www.digitalocean.com/community/tutorials/how-to-use-haproxy-to-set-up-mysql-load-balancing--3 ...
0
votes
0answers
10 views

MySQL Replication problem with VIEWS and “Sub-Databases”

I've got three servers that should do a master-master replication. On server 1 i got "01_maindb" which holds the master tables. I replicate this table to the two other servers without problems. ...
1
vote
2answers
52 views

MySQL Slave has unmanagbly higher IO load than master

A MySQL slave having a higher disk load than the master or not being able to keep up is not unusual, nor are questions about it on Stack Exchange, but I did want to run my issue by here, because in my ...
1
vote
0answers
16 views

How can I correct MySQL replication while using federated tables?

This is an overview of what I have going I have 2 server A (10.0.4.22) AND B (10.0.4.29) A is a replication of B and B is a replication of A (yes it is a ring replication) ON A I have 2 table uat and ...
0
votes
1answer
44 views

mysql replication - missing table for foreign key on slave

i have the following situation: We're running a simple master slave replication with table filters, so the slaves doesn't have all the master tables. Master has table A with FK to table B Slave has ...
1
vote
1answer
29 views

Binlog not consistent between slave and master

Initially I don't see binlog on slave is updating. Today I discovered and add log-slave-updates option to slave, now it is updating. However, the filename does not match between slave and master. ...
0
votes
1answer
20 views

Automatic slave reconfiguration after updating master

I have development mysql master and slave servers and a prod server. I need to set up regular (once a week) syncronization of dev and prod databases. It would be easy for me to use prod# mysqldump > ...
0
votes
2answers
61 views

Replicated timestamp column in different timezone

I have the master running Mysql 5.5.38 on Ubuntu 14.04 LTS. The timezone in the master is UTC+5:30. The slave is in AWS RDS which runs in UTC. The slave is primarily used for running for SQL queries ...
0
votes
0answers
27 views

How many Slaves Can I to replicate with one Master Server with MySQL?

How many Slaves Can I to replicate with one Master Server with MySQL?, because I have a inconvenient, I have three servers that replicate a MySQL database. I've maked all the configurations and the ...
0
votes
1answer
140 views

Add database to existing replication which uses binlog_do_db?

We have two MySQL 5.5 servers running on Ubuntu 12.04. We are successfully replicating 3 databases from server01 to server02, but need to add a 4th (new) database. Our my.cnf on the master has: ...
3
votes
1answer
59 views

Is it mandatory to enable --log_slave_updates with MySQL Replication using GTID? [duplicate]

I'm setting up 5.6 Percona Mysql, in order to enable GTID should I have to enable log_slave_update on both Master and Slave ? If I should enable log_slave_update, then I'm counting this to CONS for ...
0
votes
1answer
74 views

Error 1236 From Master After Restored Replication

I've been trying to restore a broken replication caused by power interruption. upon checking the slaveDB, it was already broken so I setup a new replication. And upon supposedly completing the ...
0
votes
1answer
18 views

MySQL table replication on the same server

I have one the same server (Linux) two databases: db1 and db2 and I want to replicate db1.table1 to db2.table1 I added the following lines to my.cnf and restarted mysql service replicate-do-table = ...
0
votes
0answers
27 views

Replicate/Sync Production database with Development database (no Master/Slave)

I currently use ClearDB MySQL DaaS for my production database, and a local MySQL database on my dev server for development. I need to have the production database replicated/copied/synced to the dev ...
0
votes
1answer
122 views

MySQL slave taking too long on “Queueing master event to the relay log”

I have two mysql mysql slave servers. The DB version is: mysql> show variables like '%version%'; +-------------------------+-----------------------------------------------------+ | Variable_name ...
0
votes
2answers
24 views

MySQL replication - independent data update on slave

I have an unusual situation where I am migrating websites and their corresponding databases from one server to another. I have a database that is hosted on one server, A, where new records are ...
0
votes
1answer
56 views

MySQL replication - slave hangs during ALTER table or BULK update - v5.1.71

We are facing the above mention issue. In this case if we try to STOP SLAVE then it hangs and we even can to restart DB. As I search in google for the same it looks like a bug. Id 38205 in V5.1. My ...
0
votes
1answer
68 views

MySQL Replication: Seconds Behind Master super high

I've set up a slave db server for my production database, but when I checked the show slave status, I noticed a super big number in seconds behind master. This is the output: ...
0
votes
0answers
24 views

MySQL master/slave replication - replicate all tables

I am doing a master/slave replication, but getting errors about my tables does not exist. Is there not a way where i can make the whole table structure replicate aswell? Thought it did on default tbh. ...
0
votes
1answer
38 views

how to setup [master] - [master-slave] - [slave] mysql replication

i am trying to setup a mysql replication architacture between 3 mysql server. (by following some tuto like ...
1
vote
1answer
37 views

MySQL Delete Rows from Slave

I want to truncate the majority of data on a slave such that it only has the most recent records. I'll eventually demote the current master, making it a read-only archive, and promote the truncated ...
1
vote
1answer
39 views

Error 2003: Setting up MySQL Replication

Trying to setup MySQL Replication using this guide here : http://wpguru.co.uk/2013/05/how-to-setup-mysql-masterslave-replication-with-existing-data/ I was able to do this on two random VMs running the ...
1
vote
1answer
28 views

Multi Replications Plan on 2 servers

I need some advice about our new database deployment plan. We have 6GB of total mysql data(all innoDB) and innoDB_buffer_pool is set to be 16GB Ans we have 2 database servers.(plus 1 server for the ...
0
votes
1answer
62 views

Can a slave with a dynamic ip update the master

How can I setup mySQL replication in such a way that a slave on localhost with dynamic IP can update the master as well as get updates from the master which has a static IP. The slave will not be ...
0
votes
0answers
43 views

MySQL replication working, but data is out of date

I'm trying to figure out why even though SHOW SLAVE STATUS isn't reporting any errors, nothing is replicating (see below): both nodes are running: mysql> SELECT VERSION(); +------------+ | ...
2
votes
1answer
67 views

MySQL Replication - Master Master - Single Master write

I am looking to improve our fault tolerance for our persistent store. After reading several online docs about how to set-up master <> master replication, I'd still like to ask the experts about the ...
1
vote
1answer
33 views

How Much Resources Does the BLACKHOLE Storage Engine Consume?

I'm going to add a MySQL Relay Slave which use BLACKHOLE Storage Engine. The relay slave will just filter some databases binlog to downstream slave. Our MySQL Master generates about 15G a day in ...
0
votes
1answer
271 views

mysql replication on windows server

How to setup replication(Master/slave) in MySQL 5.6 while both servers are windows based? All the things i have fond are Linux based replication. kindly someone help who experienced replication with ...
1
vote
1answer
51 views

MySQL Replication Lag Almost 23 Hours

I came into a new environment where the production DB was running on MySQL 4. Replication is usually about an hour behind but in the last few days it has been well over 24 hours behind. I'm not ...
0
votes
1answer
58 views

Read Replicas with multiple instances of MySQL running on different ports

I have a specific need to create a single linux server which can host 4 MySQL instances with read replication. Here are a few questions I cannot seem to find answers to: Can you setup read ...
0
votes
0answers
15 views

MySQL - HOWTO speed up slave replication on large database / Quickly spawn slave? [duplicate]

We have a large mysql database (about 100GB on disk) that we would like to spawn a slave for. Our typical process for creating a slave is: Create a slave server Load in a mysql dump of the master ...
0
votes
2answers
267 views

MySQL - HOWTO speed up slave replication on large database / Quickly spawn slave?

We have a large mysql database (about 100GB on disk) that we would like to spawn a slave for. Our typical process for creating a slave is: Create a slave server Load in a mysql dump of the master ...
2
votes
1answer
466 views

pt-heartbeat showing “Host is blocked because of many connection errors”…but connections are well under limit

I'm running MySQL in a master-slave configuration. pt-heartbeat is showing "Host is blocked because of many connection errors"...but connections are well under limit (limit is 600 connections, MySQL ...
0
votes
1answer
38 views

MySQL replication issue when master gets restarted

I have the following environment: NodeA and NodeB in NDB cluster. NodeC InnoDB outside cluster. NodeB is replication master and NodeC is slave. I have set up replication and it works fine. The ...
1
vote
0answers
93 views

Replication of a remote MySQL database to local MySQL database

I'm the developer of my employers corporate private website, a HTML5/PHP/CSS powered site for company reports etc. The site, hosted on a shared hosting package, connects to a remote read-only MySQL DB ...
1
vote
1answer
41 views

In MySQL how do I grant a user access to a read replica only?

I have some users that I want to grant read only access to my database so I setup a replica server, but I don't want to grant them access to the master. I'd assume that this is a common use case, but ...