NDB Cluster Source code (3 replies)
Hi I am looking for how the ndb cluster features set were implemented by MySQL. Thus I was looking for the source code. For example: I want to look into synchronization of data between nodes. I tried...
View ArticleSQLSTATE[HY000]: General error: 1296 Got error 839 'Illegal null attribute'...
I was trying to insert a record into a newly created table while got this error message, can anyone tell me why that happened? Here is my table source: CREATE TABLE `supcs_recordings` ( `id` bigint...
View ArticleMysql NDB cluster - Big import fail (no replies)
Hi I'm having some issues trying to import a big (12 GB) mysql dump. The dump is from an internal mysql database (no ndb) and I'm trying to insert it to a new mysql ndb cluster (changed all sentences...
View ArticleDistributed MySQL (NDB) database read and write lock (no replies)
When using the MySQL NDB Cluster distributed database, the following general problem has arisen: To insert a new Record / Row, the last row in the database should be read, see if it is compatible with...
View ArticleHow to build NDB clusters from source code in arm ubuntu (1 reply)
How to build NDB clusters from source code in arm ubuntu, or how to get arm NDB clusters
View ArticleInsert large longtest failed on NDB (1 reply)
Hello Everyone, We want to use longtext column to save big data for an application. I got the error below when trying to insert a 500M string into a longtext column on a NDB. The same insert can be...
View ArticleNode2 & Node3 Cluster requires this node to be started with --initial (2...
Hi all newbie here (well less than a newbie, idiot). I have a 3 node MySQL cluster that was installed via Docker (MySQL Docker Image 7.5.10-1.1.5), which this deployment was created by someone that...
View ArticleAbout High availability (1 reply)
Hi all, i've installed mysql cluster via deb and apt. i followed this guide: https://dev.mysql.com/doc/mysql-apt-repo-quick-guide/en/#repo-qg-apt-cluster-install...
View ArticleRH/Oracle Linux 9 Yum Repo Empty (1 reply)
I am going to add two more data nodes to my cluster and am in the process of setting up new servers. I am planning to use Oracle Linux 9. However, the yum repository for that version doesn't have any...
View ArticleMySQL Cluster 8 - 4 nodes (1 reply)
Hello. So we are running 4 nodes and 2 masters the same exact as this https://www.mysql.com/products/cluster/availability.html But if 2 of my nodes lose connection or go down they wont auto reconnect...
View ArticleMySQL NDB Cluster 8.0.31 Transparent Data Encryption (no replies)
MySQL NDB Cluster 8.0.31 Transparent Data Encryption - https://blogs.oracle.com/mysql/post/mysql-cluster-8031-transparent-data-encryption
View ArticleNDB 8.0 Example Doesn't Work (1 reply)
I'm trying to follow this tutorial: https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-config-starting.html Attempting to start the second management node always dies. The first node rejects the...
View ArticleNDB: stored grants: not intialized. (1 reply)
Attempting to get my first cluster going and adding users ran into this message. NDB: stored grants: not intialized. I followed these instructions:...
View ArticleHow to restart or recover data when all data nodes crash and then fail to...
We've been running an older version of MySQL Cluster 7.4.7 for many years with minimum configuration, containing 2 data nodes, 2 sql nodes, and 1 management node. After running an Alter Table...
View ArticleError with Indexes (1 reply)
I added to more nodes to my cluster. I put them in a separate node group and everything ran fine for a week. Then I noticed that the new nodes didn't have much data so I ran the alter table command to...
View Articleneed to add new ndb data node to my cluster (1 reply)
Dear, we have ndb cluster 7.4.10 with mysql version is 5.6.28 ndb-7.4.10 we have 2 data nodes with replica 2. can we add another third node to this cluster? why when we start the two nodes the...
View ArticleMysql NDB Cluster error while restoration of data "ERROR 1114 (HY000) at line...
I have created mysql NDB Cluster with two data nodes and two mysql servers. below is the configuration of ndb_mgmd. $cat /usr/mysql-cluster/config.ini [ndbd default] NoOfReplicas=2 DataMemory=1024M...
View ArticleXA transaction causes Mysql crash in 8.0.34 (no replies)
I have the following snippet: # cat xacrash.sql drop database if exists newdb; create database newdb; use newdb; create table innodbtable(id int) engine=innodb; xa begin 'innodbtx'; insert into...
View ArticleNBBCluster not sync autoincrement values between mysql server nodes (2 replies)
I have a NDBcluster on 2 physical servers with this layout: vm1 ndb manager + mysql server #1 vm2 mysql server #2 vm3 data node #1 vm4 data node #2 i import many dbase on vm1 using mysql commnand...
View ArticleError while trying ndb_restore (6 replies)
Hello, I am a student and still unfamilliar with mysql cluster. I am trying to do backup and restore. 1. I have config in config.ini for back up as followed: ## BackUp setting ## BackupDataDir...
View ArticleMySQL Cluster (NDB) spread data (rows) to 4 data-nodes servers (no replies)
I want to spread my MySQL rows to 4 servers (Horizontal sharding). I searched, and I found that I have to use NDB cluster (MySQL cluster). I made a MySQL server/client with NDB manager server and 4...
View ArticleError 4009 (no replies)
Hello, I am making a project using 8 data nodes, and 47 sql nodes. Here's the config.ini setting in ndb management server: [MGM] DataDir=/usr/clustergo HostName=192.168.1.1 [DB default]...
View ArticleError 1064 Duplicate entry 'ndbcluster-96' for key 'tables.engine' (no replies)
I have a production 8.0.33-cluster MySQL Cluster Community Server. it works fine in the last 6 months until today. There are 28 working databases in it. Since today I can't create any table in any...
View ArticleNeed help to review a serializability implementation for MySQL Cluster (no...
Hey guys, I've recently made some progress in the field of consistency(C in ACID). Among other things, I've developed a serializability implementation for MySQL Cluster(NDB Cluster) to test my ideas...
View ArticleA question about epoch boundary in system-wide recovery (1 reply)
Hey guys, I have been reading this article of Frazer Clement's lately: https://messagepassing.blogspot.com/2011/12/eventual-consistency-in-mysql-cluster.html. It got an excellent description of...
View ArticleMySQL NDB Cluster: Replication (no replies)
MySQL NDB Cluster: Replication - https://blogs.oracle.com/mysql/post/introduction-to-mysql-ndb-cluster-replication -...
View ArticleMySQL NDB Cluster and MCM: TLS (no replies)
MySQL NDB Cluster and MCM: TLS - https://blogs.oracle.com/mysql/post/ndb-tls-with-mcm
View ArticleMySQL NDB Cluster 8.4 - What's new (no replies)
MySQL NDB Cluster 8.4 - What's new - https://blogs.oracle.com/mysql/post/mysql-ndb-cluster-84-whats-new
View ArticleHow to shorten the time after data node switchover (no replies)
Host A, a management node, data node and SQL node. The main data node. Host B, a management node, data node and SQL node. Reboot host A. Host B accessing mysql reports error ERROR 1296 (HY000): Got...
View ArticleMySQL 8.4 replication issues (3 replies)
Hi , I want to setup replication between 2 NDB Clusters V8,4 . Primary Cluster 2 VMS are having data nodes and management nodes 2 VMs are having mysql API nodes my.cnf: datadir=/var/lib/mysql...
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