mysql-cluster | Scalable MySQL Cluster with ProxySQL Load Balancer | Database library

by jelastic-jps JavaScript Version: Current License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(9)Vulnerabilities Install Support

kandi X-RAY | mysql-cluster Summary

mysql-cluster is a JavaScript library typically used in Database, MariaDB, Docker applications. mysql-cluster has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Scalable MySQL Cluster with ProxySQL Load Balancer and Orchestrator

Support

Quality

Security

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Support

mysql-cluster has a low active ecosystem.

It has 45 star(s) with 47 fork(s). There are 10 watchers for this library.

It had no major release in the last 6 months.

There are 4 open issues and 7 have been closed. On average issues are closed in 56 days. There are 4 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of mysql-cluster is current.

Quality

mysql-cluster has 0 bugs and 0 code smells.

Security

mysql-cluster has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

mysql-cluster code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

mysql-cluster is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

mysql-cluster releases are not available. You will need to build from source code and install.

Installation instructions are available. Examples and code snippets are not available.

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mysql-cluster Key Features

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mysql-cluster Examples and Code Snippets

No Code Snippets are available at this moment for mysql-cluster.

Community Discussions

Trending Discussions on mysql-cluster

Can't create NDB table in MySQL v8.0.28

How to connect to MySQL database cluster

Check if cluster parameter group exists , if not then only create using terraform

MYSQL CLUSTER shows mgmd init error in ubuntu 20

Replicate NDBCluster to InnoDB

Terraform Error: only lowercase alphanumeric characters and hyphens allowed in "cluster_identifier" rds_cluster

2 mySQL clusters in HAProxy

mysql cluster: how to connect

how to edit secure_file_priv using MYSQL Docker container

QUESTION

Can't create NDB table in MySQL v8.0.28

Asked 2022-Mar-08 at 19:01

I am creating a table using the following statement:

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ANSWER

Answered 2022-Mar-08 at 00:36

What is your default character set? It's utf8mb4 by default in MySQL 8.0, which means you count 4 bytes per character.

Therefore your row size is 14,720 characters * 4 bytes/character = 58,880 bytes.

utf8 is a variable-length encoding, so it's likely not every character will be a 4-byte character, but MySQL must assume that any or all characters in these strings might be 4-byte characters. Therefore it has to accommodate the maximum possible bytes per character when calculating the row size.

Source https://stackoverflow.com/questions/71388678

QUESTION

How to connect to MySQL database cluster

Asked 2022-Jan-17 at 12:17

I tried to install a MySQL cluster with the Docker image below.

mysql/mysql-cluster - Docker Image | Docker Hub

The Docker image is pulled and run successfully.

Despite that I could connect to the cluster in the terminal (as shown in the screen capture below), I don't know how to connect to it with MySQL Workbench or DBeaver.

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ANSWER

Answered 2022-Jan-13 at 13:11

In your docker run command, you can use -p 3306:3306 (or any available port). Then you can use : from Workbench or Dbeaver connection URL.

Source https://stackoverflow.com/questions/70696637

QUESTION

Check if cluster parameter group exists , if not then only create using terraform

Asked 2021-Sep-18 at 05:39

Requirement - I want to create a cluster parameter group by checking first , if it already exists (which might not be created by terraform), then don't run the create resource block . If not then only create it.

1st issue - I couldn't find data source to fetch existing cluster parameter group. Kindly help me with that.

2nd - If there is any better way to achieve this or are there any other issue , which can occur in below code.

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ANSWER

Answered 2021-Sep-18 at 05:39

if it already exists

Terraform (TF) does not have any build in tools for checking if something exists or not. This is against principles of how TF works. The core principle of TF is that if a resource is not-managed by TF, it does not exist. Similarly in terms of data sources, they must already exist, as there is no middle-ground that it may or may not exist.

Having said that there are ways to hack-up a solution to your requirement. Namely you can create your own External Data Source. Since this is your custom data source you can design it to check if for existence of resources and return true/false to TF for further use.

Source https://stackoverflow.com/questions/69231569

QUESTION

MYSQL CLUSTER shows mgmd init error in ubuntu 20

Asked 2021-May-01 at 14:21

My Linux Server is ubuntu 20 MySQL Cluster Management Server mysql-8.0.23 ndb-8.0.23 MySQL distrib mysql-8.0.23 ndb-8.0.23, for Linux (x86_64)

When I try to start(command：ndb_mgmd -f config.ini --ndb-nodeid=11) the mysql cluster mgmd node, it always show the error message Could anyone help me? Thanks

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ANSWER

Answered 2021-May-01 at 14:21

Since MySQL Cluster 8.0.22, when support for IPv6 was introduced, MySQL Cluster unintentionally requires kernel support for IPv6 (which I suspect you have disabled).

Sorry for that answer, please file a bug for your issue.

Meanwhile you can consider some workaround.

Keep IPv6 support in kernel and instead disable it after boot.
- Remove ipv6.disable=1 from kernel boot parameters.
- Instead disable IPv6 using:

Source https://stackoverflow.com/questions/67332167

QUESTION

Replicate NDBCluster to InnoDB

Asked 2021-Feb-14 at 18:37

We operate a NDBCluster Version 8 and want to replicate a database in this cluster into a "standalone" InnoDB Database System. I followed this guide to implement the replication: http://johanandersson.blogspot.com/2012/09/mysql-cluster-to-innodb-replication.html but it seems, I have done something wrong and I don't know, how to debug it. I know the guide is very old, but I also read the chapter about the NDB Replication on MySQL https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-replication.html

Current behavior

The replication I set up by now replicates every statement like "Create Database" or "Create Table", even "INSERT" and "UPDATE" statements, as long as the NDBCLUSTER as Engine is not involved. I.e.: I can create a new Database in the cluster and it will be perfectly replicated to the slave. I can insert new datarows to a InnoDB table that I created on the cluster (I know, it is not actually saved in the cluster) and those data rows will be replicated to the slave. Inserting new data rows to a NDBCLUSTER table will result in no replication at all. If I execute the statement "SHOW MASTER STATUS" on the SQL Node in the Cluster before the insert to a NDBCLUSTER table and afterwords, I can see, that the Binlog Position has not changed at all.

Wanted behavior

I want the Replication to replicate data from tables with the NDBCLUSTER Engine to my Slave, that runs on InnoDB. I know there are limitations and we have to be carefull how to structure tables, that everything is compatible, etc.

Current Setup

We operate a MySQL NDB Cluster with 2 Management Nodes, 2 SQL Nodes and 4 Data Nodes and we want to replicate to one InnoDB Server

All Systems have Version 8 installed, run on Ubuntu 18.04 and all Systems have the Cluster Version of the MySQL Server installed. On of the SQL Nodes is chosen to do the replication. The config (/etc/my.cnf) of the Slave in the mysqld section is:

...

ANSWER

Answered 2021-Feb-14 at 18:37

Since MySQL Version 8.0.16 in addition to "log-bin" also a second variable has to be set in the my.cnf of the master & slave:

Source https://stackoverflow.com/questions/66198771

QUESTION

Terraform Error: only lowercase alphanumeric characters and hyphens allowed in "cluster_identifier" rds_cluster

Asked 2020-Dec-15 at 18:15

The detailed error is:

...

ANSWER

Answered 2020-Dec-15 at 08:26

terraform validate does only checks if the config is

syntactically valid and internally consistent, regardless of any provided variables or existing state. It is thus primarily useful for general verification of reusable modules, including correctness of attribute names and value types.

That is in your case the code looks good, the resources correctly interact with each other, the types are correct etc. But the actual values are incorrect, in particular the var.identifier does not match the expected pattern but validate simply does not check that.

Solution: fix your var.identifier to match the pattern the aws_rds_cluster demands for its cluster_identifier, namely "mysql_aurora_cluster" should be "mysql-aurora-cluster"

Source https://stackoverflow.com/questions/65302064

QUESTION

2 mySQL clusters in HAProxy

Asked 2020-Sep-23 at 10:50

We use HAProxy (1.5) to proxy mysql to 4 Galera Nodes. We use roundrobin and works good for High Availability and Load Balancing.

See /etc/haproxy/haproxy.cfg

...

ANSWER

Answered 2020-Sep-23 at 10:50

You can try something with backup to help you configure with failover

Source https://stackoverflow.com/questions/64025695

QUESTION

mysql cluster: how to connect

Asked 2020-Aug-31 at 21:15

I can not connect to my mysql cluster. I followed this tutorial : https://www.digitalocean.com/community/tutorials/how-to-create-a-multi-node-mysql-cluster-on-ubuntu-18-04 I tried connecting with workbench and mysql command to both data nodes and managment nodes on both 3306 and 1186 but I can cont connect to anywhere. Firewall is disabled on all machines. I created new user which can connect from anywhere but still no luck. Cluster works according to the test in the tutorial. To which node and port should i try to connect? Or is something missing in that tutorial?

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ANSWER

Answered 2020-Aug-31 at 21:15

So I fixed it thanks to nafooesi. For everyone that has same problem I did this.

Tried on my managment node telnet localhost 3306 . It said connection refused. I have edited /etc/mysql/mysql.conf.d/mysqld.cnf. sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf Find bind-address = 127.0.0.1 and rewrite it with bind-address = ip.of.managment.node

And with workbench and programming languages you connect to your managment node not data nodes as i previously thought.

Thanks once again nafooesi.

Source https://stackoverflow.com/questions/62476026

QUESTION

how to edit secure_file_priv using MYSQL Docker container

Asked 2020-Jan-15 at 21:45

I created MySQL cluster of nodes (2 datanodes, 1 management node, and 1 MySQL server node) on Docker Following the instructions from this link:

https://mysqlmed.wordpress.com/2017/09/04/mysql-cluster-in-docker-quick-step-by-step

Then I created a MySQL table to import a csv file (named daily.csv) using the command:

...

ANSWER

Answered 2020-Jan-15 at 21:45

In your case it might be sufficient to mount your local directory inside the directory expected by mysql (/var/lib/mysql-files/).

Try starting the container with an additional -v parameter, like this:

Source https://stackoverflow.com/questions/59759114

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install mysql-cluster

In the opened confirmation window at Jelastic dashboard, choose MariaDB/MySQL replication type with appropriate cluster topology, state the Environment name, optionally, customize its Display Name. If required you may exclude ProxySQL layer from the cluster topology before installation, just uncheck it. Keep in mind that you won’t be able to do that later and vice versa if you disable it before installation you will not be able to add the proxy layer afterward.Then, select the preferable region (if several are available) and click on Install. After successful installation, you’ll receive a number of default emails based on your environment topology with access credentials.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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