Questions tagged [group-replication]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
1answer
18 views

Why slave_parallel_workers affects TPM

I ran a few HammerDB benchmarks and mess with the configurations. And I notice different values of slave_parallel_workers have a considerable impact on TPM. As far as I understand, ...
1
vote
1answer
14 views

MySQL Group Replication consistency EVENTUAL vs BEFORE_ON_PRIMARY_FAILOVER

As far as I understand, BEFORE_ON_PRIMARY_FAILOVER is exactly behaving like EVENTUAL in normal scenarios until a failover happened, which the former will block all new transactions until the new ...
0
votes
0answers
27 views

MySQL Group Replication add node to (long) existing cluster fails

I've got a working MySQL GROUP REPLICATION Cluster consisting of 2 Ubuntu 20.04 servers, running on IP's 192.168.1.2 and 192.168.1.3 (local network connection). This works great, however to get good ...
1
vote
0answers
230 views

MySQL multi-master group replication on kubernetes

We are trying to setup MySQL multi-master group replication (GR) on kubernetes Group replication configuring instances. GR is starting on one pod after all the configurations. However the second node ...
0
votes
0answers
49 views

MySQL InnoDB Cluster can't be created. Why?

I am trying to setup a MySQL InnoDB Cluster. I configured each node involved using dba.configureInstance(...). Everything was nominal until I ran var cluster = dba.createCluster('clusterNmae'). When I ...
0
votes
0answers
31 views

ER_TRANSACTION_ROLLBACK_DURING_COMMIT MySQL error when querying

I've recently seen a high number of errors on my Bugsnag integration of my web app which occur when both reading or writing to my MySQL server. ER_TRANSACTION_ROLLBACK_DURING_COMMIT: Plugin instructed ...
0
votes
1answer
45 views

What contributes to the transaction size on a MySQL UPDATE?

Background We're running a MySQL 8 INNODB cluster behind some Java services. We received an error from the application because we'd exceeded the group replication transaction size limit (“Error on ...
0
votes
1answer
328 views

Cannot rejoin or add instance to MySQL InnoDB cluster

I have a MySQL InnoDB cluster running where I had added three nodes, one is having the Primary role and the others are Secondary. Today morning, the two secondary nodes were removed from the cluster ...
1
vote
0answers
201 views

MySQL group replication plugin won't recognize host's IP address?

I have pulled the current mysql-server image (mysql-server) on 2 Ubuntu 18.04 machines and I want to set up group replication. This is how I start the mysql container on each machine (--server-id is 2 ...
0
votes
0answers
11 views

MySQL group-replication error

We have MySQL 5.7 cluster with 4 nodes. We get a problem with one node in this cluster often. Our applications write data to node1 and node1 replicates data to other 3 nodes. In node1, I keep getting ...
0
votes
0answers
284 views

ERROR 3911 (HY000) at line 24: Cannot update GTID_PURGED with the Group Replication plugin running

heyy all, we want to move our current mysql 5.6 server to mysql-8 innodb cluster. for this, we are setting up a replication like 5.6 -> temporary 5.7 -> mysql-8 cluster. We already have the ...
0
votes
1answer
396 views

MySQL Group Replication - Offline Node with cluster Metadata 1.0.1

I have a production MySQL Group Replication setup out of three Nodes. The cluster has Metadata Version 1.0.1. Today, one node went down an during rejoin phase, it says, it cannot connect to the ...
0
votes
1answer
335 views

MySQL Group Replication Multi-Primary Setup

We are running three MySQL Servers in a Group Replication Multi-Primary Setup. Here are is one of my configuration of one member of that GR group: # General replication settings gtid_mode = ON ...
2
votes
0answers
1k views

MySQL Group Replication - Peer address is not valid

I have been trying to set up an MySQL Innodb Cluster, initially with two databases, both MySQL 8.0.19. But I keep getting the same errors. On the first one (username@1.2.3.4:3306), I have created ...
0
votes
1answer
414 views

How to configure MySQL Router on two application servers?

I have three MySQL servers running with group replication and inside a InnoDB Cluster. I have two app servers that will be connecting to the cluster and I need to configure mysql router on both app ...
0
votes
1answer
256 views

Mysql binary logs are not deleted after expiration

I have 3 Mysql 5.6 nodes in one galera cluster in the first DC and 3 MariaDB 10.3 nodes in another galera cluster in the DR site. One node on the 1st DC is the master for one slave node on the DR site....
0
votes
1answer
366 views

Relay log read fail, relay or master log currupt ,How to repair?

I am running mysql InnoDB cluster 8.0.17(group replication) During the repication the slave disk gets full and no space left at all the thread waits for the disk space to be freed at the same time ...
0
votes
1answer
358 views

MySQL, Group Replication not surviving after a single restart

Can anyone see where I am going wrong, as this is driving me round the bend. I have set up a clean install of MySQL 8.0.17 on my Windows 10 laptop. I have gone through the whole initialize process, ...
0
votes
1answer
575 views

MySQL Group Replication fails to understand “::ffff:” IP Address

I'm trying to set up group replication using 3 x MySQL 8.0.16 databases, but when I start up the second Node it fails. The error log reports: [GCS] Connection attempt from IP address ::ffff:10.12.1.2 ...
0
votes
0answers
540 views

mysql 8 innodb clustering - adding instance fails with error “Unknown database 'mysql_innodb_cluster_metadata'”

I'm setting up my first mysql innodb cluster, following the instructions here: https://dev.mysql.com/doc/refman/8.0/en/mysql-innodb-cluster-production-deployment.html I've configured the instances ...
0
votes
0answers
36 views

Mysql Shell doesn't change the configuration of my database for group replication

I am attempting to use a preexisting database on multiple nodes in a group replication setting. I am using mysqlsh 8.0.16, mysql server 5.7.24 and ubuntu 16.04 as the host. When I attempt to ...
0
votes
1answer
107 views

how the mysql server settings replicatd in innodb cluster

I just started learning about cluster so I don't have much knowledge if question is not appropriate please forgive me. I have a 3 node InnoDB cluster running .suppose if I want to tune my server by ...
2
votes
1answer
180 views

How to setup two mysql servers with group replication to work individually, when no network

I have two mysql servers in two different places. Both servers must be able to read and write. All tables are designed to based on unique id (UUID) primary key. I want to sync these two databases live ...
0
votes
4answers
428 views

Group Replication plugin crashes MySQL 8.0

Problem description: INSTALL PLUGIN group_replication SONAME 'group_replication.so'; results in ERROR 2013 (HY000): Lost connection to MySQL server during query Specs: MySQL version: 8.0.13 ...
0
votes
1answer
408 views

Application considerations when using a multi-primary innodb cluster

I'm developing a scalable cloud application and I wish to use a multi-primary cluster to be better able to scale horizontally when needed. I have experience with a single primary cluster configuration....
0
votes
1answer
435 views

Why does my Group Replication plugin fail in MySQL 5.7.24?

I've been using the group_replication plugin with MySQL without issues before 5.7.24. With this version, the server starts up without the plugin because of failure. I confirmed it manually (see steps ...
4
votes
2answers
6k views

Mysql Group replication vs Mysql Cluster

[disclaimer] I'm not new to databases but totally novice about replication and cluster ... As you may know Mysql made available a new functionality : MySql Group Replication. Is anyone can explain ...