Data Node/Mgmt Node in NDBCluster disconnect make error code 157 returned in...
We have faced the issue when one of the DB is disconnected for few seconds, and Application cannot get that data and get cause code for 4010, 4002, 157. They are 2016-11-15 12:50:07,362 ERROR...
View ArticleProcess co-location: force mysqld to prefer local ndbd (no replies)
Hi My NdbCluster deployment is as follows: Server 1 - ndbd + mysqld Server 2 - ndbd + mysqld Server 3 - ndb_mgm NoOfReplicas = 2, so each of servers 1/2 hold full data-set As I can see in tcpdump...
View ArticleHow to decrease LCP directory disk usage (1 reply)
Hi, There are no free spaces in mysql cluster data node. I want to know how to decrease LCP directory disk usage. Is there any method how to decrease LCP directory disk usage ? and Is it possible to...
View ArticleNDBCluster memory usuage (4 replies)
HI, We are using Mysql 5.6.21 and ndb 7.3.7. We are having high usage of in-memory from the ndbcluster for the 1 GB of database size. Here is our current status of memory usage: Node 2: Data usage is...
View ArticleNDB7.5.4: start/stop/restart nodes in ndb_mgm client got Permanent error:...
I installed MySQL Cluster CGE edition version 7.5.4 downloaded from Oracle edilivery site. And what I used is the binary tar.gz file, followed by officail instruction documents. Required by our use...
View Articleunknown option '--ndbcluster' (4 replies)
Hello, I'm working with MySQL Server 5.7. I've added the following lines to the /etc/mysql/mysql.conf.d/mysql.cnf : [mysqld section] : ndbcluster [mysql_cluster] ndb-connectstring = 192.168.56.101...
View ArticleCluster Error (no replies)
MySQL Version : 5.5 Windows server 2012 Configured all the things correctly in MGMD Node i am getting this output C:\mysql\Bin>ndb_mgm -- NDB Cluster -- Management Client -- ndb_mgm> show...
View Articlehow can i fix table read only issue - table './mobile_platform/base_user'...
ng' 2016-08-30 11:49:54 1897 [Note] NDB Binlog: Setup completed 2016-08-30 11:49:54 1897 [Note] NDB Binlog: Wait for server start completed 2016-08-30 11:49:54 1897 [Note] Server hostname...
View ArticlePhxSQL: A high-availability and strong-consistency MySQL cluster (no replies)
Hi, Guys. We are PhxSQL develop team from Wechat. PhxSQL is a high-availability and strong-consistency MySQL cluster as strong as Zookeeper and built on Paxos and Percona. * high availability by...
View ArticleAdvice about how do distribute components across servers? (2 replies)
I have my cluster which back ends a web application set up like this: server1: httpd and web application (does not use Mysql) server2: redundant version of server1 server3: tomcat (load balance by...
View ArticleUse ordinary replication on innodb alongside NDB clustering? (1 reply)
Hi, Relative newbie here. I am a bit confused about the maximum table size that can be supported by MySQL Cluster. On the one hand everything says it is RAM-constrained, where each table needs to fit...
View ArticleWhere is the document about the format info of "ca-certs-file" ??? (3 replies)
I'm trying to build a Cluster by means of the auto installer. But I encounter a problem when input the information of remote hosts those are controllable through a standard ssh protocol. In MySQL...
View Articlendbinfo database missing (5 replies)
Hi, On my mysql cluster setup i dont have ndbinfo database. I dont know why its not present. In the documentation its only stated the SQL node has to connect to the cluster with --ndbcluster parameter...
View ArticleMYsql Cluster Down (1 reply)
Hello Had problem with service and msql service went down and clustering died. I need help getting all running again. How do i get 2 nodes and master up and running. What do i need to do on each...
View Articleany way to monitor in real time the MaxBufferedEpoch value (4 replies)
Does anyone know if there is a means to monitor the 'runtime' or 'active' value of MaxBufferedEpochs on a MySQL Cluster db environment? We are encountering situations where the SQLAPI node is getting...
View ArticleMySQL NDB cluster lock (2 replies)
Hello, We're using MySQL ndb-7.4.10-cluster. One time in our DEV environment, we got lock issue when somebody was trying to drop a table and it just hang waiting for metadata lock. I understand that...
View ArticleHow to create table data on disk rather then in memory (4 replies)
Hi, I would appreciate if anyone can share knowledge on MySQL cluster installation with data on disk. Since NDB uses memory to store data but what if database size is more then 1TB. What parameter to...
View ArticleFailed to initialize consumers (2 replies)
Hi, I have configured MySQL Cluster on my local window machine with 4 nodes (Node 1- mgm, node 2 & 3 - data nodes and Node 4 - SQL node). My cluster is working fine. I also took backup using...
View ArticleThe process has wrong type. Expected a DB process.: Permanent error:...
The process has wrong type. Expected a DB process.: Permanent error: Application error
View ArticleMass crashes of MySQL APIs (mysqld). (3 replies)
We are using the MySQL Cluster 7.4.9 open source edition. Downloads mysql-cluster-gpl-7.4.9-solaris10-x86_64.tar.gz repetitively mysql-cluster-gpl-7.4.9-solaris11-x86_64.tar.gz. Our environment are 36...
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