Relation between Redobuffer and SharedGlobalMemoryWhat is (no replies)
Hi, I want to understand relation between SharedGlobalMemory and RedoBuffer. Is it ok to set , RedoBuffer=512M SharedGlobalMemory=128M Or this will led to some config error or error when running...
View ArticleConnecting MySQL Cluster using ClusterJ (no replies)
Hi all, I'm using 2 data nodes and 2 SQL nodes in MySQL Cluster. Also i'm planning to connect MySQL Cluster via ClusterJ to achieve high performance. Running the java command from one of my SQL Node....
View ArticleGeographically Distributed Multi-Master MySQL Clusters (no replies)
Global data access can greatly expand the reach of your business. Continuent Tungsten multi-site multi-master (MSMM) solutions enable applications to accept write traffic in multiple locations across...
View ArticleNDBCluster partitioning by non unique column (no replies)
Hi All, I want to partition Call Detail Record (CDR) ttable using non unique column "Calling_party" in NDB cluster. i see only key can be used for partitioning. i have generated auto-increment ID...
View ArticleDisk storage blob using more memory than expected. (1 reply)
Hi All, I'm evaluating Mysql Cluster, but having a problem using disk storage and blobs. I have read the documentation that says the first 256 bytes of a blob will be held in DataMemory for disk based...
View Articlemysqld error (no replies)
I have downloaded 'mysql-5.6.19-winx64'. I opened the cmd, and typed 'mysqld'. Then, it said "[Warning]TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp...
View Articlegetting “table is full” error even if the table size is much smaller than...
Currently I am using MySQL NDBCluster 7.3.5. I have created one UNDOFILE hhme.dat with INITIAL_SIZE=200m. Also one tablespace hhmefep_tbs with DATAFILE hhmefep_tbs.dat having INITIAL_SIZE=500M...
View ArticleRandom node and full cluster crash after upgrade from 7.2 to 7.3.x (3 replies)
Hi, after upgrading from NDB 7.2.13 to 7.3.5 and 7.3.6, we experience random node crashes and finally the whole cluster dies. Setup: 4 data nodes, 256 GB each, 6 cores with HT enabled each, no numa,...
View ArticleMySQL Cluster - Data node still in state "starting" (no replies)
Hello, When I start my second SQL Data Node, he still in state "starting" : Cluster Configuration --------------------- [ndbd(NDB)] 2 node(s) id=3 @192.168.70.19 (mysql-5.6.19 ndb-7.3.6, Nodegroup: 0,...
View ArticleLatest developments in MySQL Cluster - webinar replay and Q&A now available...
Latest developments in MySQL Cluster - webinar replay and Q&A now available from http://www.clusterdb.com/mysql-cluster/mysql-cluster-latest-developments-webinar-replay-qa View this webinar to...
View ArticleInterpreting data node log output. ndb_2_out.log (no replies)
Hi there: Thank you in advance for assistance. we have on development environment a mysql cluster 7.3.6 on redhat Enterprise 6.5. This cluster have four server as follow: 2 API/SQL NODES 2 MGM...
View Article(1062) Duplicate entry '' for key '*UNKNOWN*' (3 replies)
Hi all, I recently encounter the "(1062) Duplicate entry '' for key '*UNKNOWN*'" error with the following SQL. It is strange that none of the updating value is '', and why is the key *UNKNOWN* ???...
View ArticleTrouble importing innodb data into ndb (no replies)
We have set up a cluster 7.3.5 environment with 4 data nodes, each with 64 g of RAM. We are trying import a large sql dump file from an innodb into it. the dump file is 18 gb. The first thing we are...
View ArticleMySQL Cluster logs lot of "scanIndex_abort" (no replies)
Hello, We are testing our application for performance and we see in the MySQL cluster Data node log a lot of these messages: ... H'003eb68a H'01703500 scanIndex_abort state: 3 ... No other errors or...
View ArticleMySQL cluster dump with logfile (1 reply)
Here's a problem I'm having in MySQL cluster and hoping one of you has an answer since it seems like something pretty obvious. I'm producing dumpfiles of our MySQL cluster databases which of course...
View ArticleCluster slow down when one sql node is down (no replies)
Hi, I just started to try MySQL Cluster. One test I'm doing is to take down one sql node while populating data into Cluster. I noticed the insert slowed down dramatically while one sql node is...
View ArticleStarting again (no replies)
Hi all, Someone else started trying to get a setup of mysql cluster running over 3 servers. On Linux, CentOS release 6.5. As far as I can tell, server 1 has a management server and an API node. The...
View ArticleNDB not proper use of INDEXE's (no replies)
Hi, I need some help! we are running a query in NDBCLUSTER enviroment and is not using the proper indexes (Optimizer) as in INNODB. While in INNODB the query runs on 0,01s flat on NDBCLUSTER takes...
View ArticleNDB Binlog: Node: 4, down, Subscriber bitmask 0 (1 reply)
Our application was not able to handle transactions all of a sudden with a Heuristic Exception. Caused by: com.atomikos.icatch.HeurMixedException: Heuristic Exception at...
View Articleonline remove mysqld api nodes (no replies)
version: mysql-5.1.56 ndb-7.1.17 I want to remove 4 MYSQLD API nodes from my running cluster. Is it doable or is it whack? I started the process and removed the following from the config.ini: [MYSQLD]...
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