Why does ndb_mgmd consume 9GB RAM? (no replies)
I have a cluster with 12 data nodes with 32 mysql clients and one management node. The ndb_mgmd.exe consumes 9.5GB, but it's doing nothing. Why is it so high?
View ArticleGetting Table got full error for "Disk Based Tables" (no replies)
Description: I am trying to implement cluster for one of my client who has tables in 30 GB to 150 GB each and the total size of the DB is 1+ TB. They wanted to see how cluster might be suitable for...
View ArticleWhat operations are delegated to the storage nodes? (no replies)
I find MySQL cluster very interesting but is having a hard time finding information about what type of operations that are delegated to the data nodes. If I for instance perform operations like SUM,...
View ArticleExclude weekends between two dates (no replies)
Good morning, this is my Trigger, i juste want to exclude all the saturdays/sundays between these two dates >> x = cf_802 and cf_860 ex1 : if delay(cf_865) < 3days cf_802 = 16/11/2012 ( Next...
View ArticleNDB crash on mysqld node after an ALTER statement (no replies)
Hi MySQL, Version 7.2.8 I have had another crash after an ALTER statement. One mysqld node replying with this after every query: ERROR 1296 (HY000): Got error 4547 'RecordSpecification has overlapping...
View ArticleStored procedures executed on data nodes? (3 replies)
Is it possible to have some equivalent of "stored procedures" (but written in C) that are executed on the data nodes but "registered on the MySQserver" as if they where normal stored procedure? I...
View ArticleGot temporary error 20016 'Query aborted due to node failure' from NDBCLUSTER...
Strange issue on NDBCLUSTER. same query runs on all clusters, with same configuration, it is just one cluster having this error JFI :: Version :: 5.5.19-ndb-7.2.4-gpl-log all cluster has same OS /...
View ArticleDisk based tables performance (no replies)
Hello, I have the following doubt about disk data based tables in MySQL-Cluster 7.2.8: I got the following tables: Table 1: event (all in memory) id int PK timestamp date INDEX ... Table 2: data (some...
View Articleinstall fails at mysql_install_db (no replies)
Hey all. i am following the procedure here http://dev.mysql.com/doc/refman/5.5/en/mysql-cluster-install-linux-binary.html everything seems to go ok until i get to the line that says...
View ArticleUnexpected row-locks due to wrong index selection (no replies)
Hi, We observe a strange issue using NDB / Compound UNIQUE indexes.. When creating the following table: create table t ( C1 varchar(10) NOT NULL, C2 VARCHAR(512) NOT NULL, C3 int NOT NULL )ENGINE=NDB;...
View ArticleCPU binding on a Hexacore CPU (no replies)
I'm playing around with [ndbd]'s Threadconfig parameter for a hyperthreaded hexacore Intel CPU. This is what I tried:...
View ArticleI need some insight about a new Cluster setup (no replies)
I am in the process of deploying a Load Balancer and I would like some advice. It is the first I will be deploying a MySQL Cluster so please tell me if I say anything that make no sense. The traffic...
View Articlendb_size does not match reality (no replies)
Hi, I'm using ndb_size.pl to assess how much memory would I need for one particular table. This table has 250MB in MyISAM. The result was: Parameter Default 4.1 5.0 5.1 DataMemory (KB) 81920 1012256*...
View ArticleBug in ndb_mgm ? (no replies)
Ok, this is rather funny ... ndb_mgm> all report memory Node 2: Data usage is 223679%(-3208 32K pages of total 19200) Ndb node is still in the starting phase. 2012-11-18 16:02:40 [ndbd] WARNING --...
View Articlendbinfo counters details (no replies)
Hi Please help me to get the following details of ndbinfo counters, What is threshold value of TRANS counter in ndb stat ? What is threshold value of SCANS counter in ndb stat ? What is threshold...
View ArticleMemcached Error 29024: Out of Ndb instances, growing freelist (1 reply)
Hi all I was doing some testing/benchmarking of a MySQL NDB Cluster through memcached interface, using brutis (http://code.google.com/p/brutis/) to generate memcached transaction and I've seen that...
View Articlemysql cluster- fails to create Data node (no replies)
Hi all, I am using MySQL Cluster 7, Linux Red Hat 5 platform and VMware. I have 6 virtual machines with the following IP's: -Managment node 1 IP: 192.168.4.36 node ID:1 -Managment node 2 IP:...
View Articlehow to enable ndbcluster storage engine (no replies)
Hi everbody, I am using MySQL cluster 7.2 and I have some questions about the installation. I am using Red Hat 5 (32 bit), and I installed the files in RPM formate. I have 6 Nodes, 2x Managment, 2x...
View Articlequestion about READ COMMITTED isolation level (no replies)
Hello folks, I am new in MySQL cluster although I have some experiences with InnoDB. What is bugging me now is NDB engine doesn't support MVCC. So that means it doesn't support consistent nonlocking...
View ArticleNDB API indexscan for async (no replies)
Hi, How to use ndb c++ native api for reading or any operation using part(COL1) of a primary key(CLO1+COL2) with "asynchronous" calls. Thanks, SYED
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