MySQL Cluster SQL Node connection is not working (no replies)
Hello, I am creating all node on same server for testing but I am not able to get connected to SQL node I have tried this setup on different server still no luck. I am sharing configuration file...
View ArticleView Disappears then Re-appears (no replies)
We are using MySQL 5.6.25 NDB Cluster 7.4.7. I have several Apache NiFI nodes accessing this cluster. We get transient errors where a table View is not found but then subsequently is found (after a...
View ArticleMySQL Cluster setup for a private network (no replies)
The previous question on the forum regarding use of private versus public IP addresses made me think about how to achieve a setup of the MySQL Cluster where all MySQL Server ports are using public IP...
View ArticleMaximum permitted row size (no replies)
Hi, I'm sorry if this has been already bitten to death, but is there anything in the development pipeline of mysql-cluster to raise the maximum permitted row size for ndbcluster engine? Thank you.
View ArticleNDB Cluster how much Harddisk space (no replies)
Hi all, for testing purposes i will setup one cluster with the following configuration: 1x Management Server 2x SQL Nodes 2x Data Nodes. Each DataNode will have a 1TB SSD for storing the data. Should...
View ArticleMaxNoOfTriggers ERROR 1296 (HY000): Got error 4239 'Trigger with given name...
Hi: We have a mysql cluster 7.4.6 with 4 data node on production environment. Last weekend we needed to change several tables, data type in particular. The first change (integer to smallint) Got error...
View Articlehow to upgrade from 7.4.12 to 7.5.4 (no replies)
Is there a white paper or anything that show a step by step of upgrading from MYSQL Cluster 7.4.12 to 7.5.4. The documentation is not very clear.
View Articlendb watchdog overslept (no replies)
Hi I upgraded my mysql-cluster to version 7.5.5. Its a testing system and i'm trying to restore a dump from InnoDB and Myisam table, i replaced the engine via regex with ndb and added a tablespace....
View ArticleData Node Install/Configuration (no replies)
Looking at the documentation for installation of the data node, it seems only three files are needed, and an empty directory structure /usr/local/mysql/data It isn't clear whether a mysql user and...
View ArticleDBDICT (Line: 27073) 0x00000002 Check find_object(parentTablePtr,...
2017-02-16 10:00:54 [ndbd] INFO -- DROP_TAB_REQ: tab: 172, tabLcpStatus: 3 2017-02-16 10:00:54 [ndbd] INFO -- DROP_TAB_REQ: tab: 170, tabLcpStatus: 3 2017-02-16 10:01:03 [ndbd] INFO -- findNeighbours...
View ArticleNdb Cluster and auto_increment (no replies)
There was a question in the InnoDB clusters section on how auto_increment works in MySQl (Ndb) Cluster. The topic was closed so I answer here. Auto_increment values are stored in Ndb Cluster as global...
View Articleconfiguration where 2 out of 3 physical servers can fail (2 replies)
Hi, I am a relative newbie, and experimenting with configuration. This is for a relative small application. I have 3 servers, and need to configure for HA where 2 servers are allowed to fail. I have...
View ArticleData node recommended setup (1 reply)
Hi, Which setup would you recommend? 2 BIG Datanodes (128GB Ram, 12x CPU,) or many small datanodes with like (16GB Ram, 4 CPU). Regards Denny
View ArticleNDB_restore which server? (no replies)
I am trying to do an NDB_RESTORE to my 7.5.4 cluster. Which server is the ndb_restore initiated from? The management server, the cluster server, or the MYQSLD server? Documentation is confusing. John...
View ArticleMySQL Cluster 7.5.5 'create table' hangs on master SQL node when master/slave...
Description: ----------- With MySQL Cluster v7.5.5, when running replication between two db clusters, 'create database <new_db>' and 'use database <new_db>' run clean but 'create table'...
View ArticleNDB Memcache - change memcache caching size (1 reply)
I'm using ndbmemcache with the default policy being caching-only. However, it seems that the instance is only storing 64MB of storage. It won't let me increase it via a CLI option (-m 128), as I can't...
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Error 763 updating mysql on ndb cluster (no replies)
I have a NDB cluster with 4 mysql nodes and 2 management nodes. The current version is ndb 7.4.12 and mysql 5.6.31. Trying to update, I have update the management nodes to the version ndb 7.5.5 and...
View ArticleMySQL Cluster 7.5 on RHEL problems (3 replies)
Hello, I am having troubles installing MySQL Community Cluster 7.5.5 on RHEL 7. It seems that the RPM packages available does not match the description in the documentation found here:...
View ArticleSpotify on HopsFS, MySQL Cluster (no replies)
Spotify on HopsFS, MySQL Cluster: https://blog.acolyer.org/2017/03/06/hopfs-scaling-hierarchical-file-system-metadata-using-newsql-databases/ "I especially like that the paper is grounded in real...
View ArticleNDB engine possibly not a realtime database engine? (3 replies)
Hi, for month now, we are trying to find, why we are getting long queries every now and then. Cluster is prettie stable and runs at millions of queries per second in a telco environment. Sub second...
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