Securing RMI on EhCache
I am working on a Spring Boot 1.2.5 application running on an external Tomcat 7.5 server that uses a replicated EhCache (using RMI). I have setup the automatic peer discovery replication using the...
View Article2 Peer to peer replications with different publications on the same database
I have already a database working on 2 different cities and syncronised with peer to peer replication. Now It is working only with data but related to this data BLOB will be included to system. There...
View ArticleWriting small amount of data to large number of files on GlusterFS 3.7
I'm experimenting with 2 Gluster 3.7 servers in 1x2 configuration. Servers are connected over 1 Gbit network. I'm using Debian Jessie. My use case is as follows: open file -> append 64 bytes ->...
View ArticleSQL Server 2005 Replication
I am in the process of creating Replication between 2 Remote Servers, server 1 is the Distributor and Publisher and server 2 is the Subscription. server 1 windows 2003 server 192.168.10.1 connected by...
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Permanent count of waiting tasks (2) in Activity monitor
Now I'm observing in Activity Monitor permanent count of waiting tasks: and at "Resource waits" tab I see next: so, my question is: How to find and resolve this wait tasks? I suspect that it related...
View ArticleMerge replication throws PRIMARY KEY violation during the initialization of...
I am using SQL Server 2014 SP1 to set up merge replication on Windows 2008. The databases (Publisher & Subscriber) are restored from the production back up of SQL Server 2005 publisher database....
View ArticleUpgrading the mysql server from 5.1 to 5.6?
My server have centos 6. Currently I'm are using the percona 5.1.47 version. WOuld like to upgrade to 5.6. What is the best way to do, and what are the pre-requisite to keep in mind before doing that....
View ArticleMongoDB to MySQL Replication Automatically
i have Mongodb server and mysql server. i want to use mongodb for "write" and mysql for "read". so i am looking for some tool or some process by which we can tranfer mongodb to mysql server on regular...
View Articleinnodb_autoinc_lock_mode
We have a scenario. We are migrating from master running MYSQL 5.5 statement based replication with innodb_autoinc_lock_mode=1. We have made our new master (in RDS MYSQL 5.6) a slave of old master. It...
View ArticleAutomatic replication on slave node after service restart
I am new to mysql administration. we have master - slave replication environment. I added a 2nd slave node to existing env [master-slave] and replication is successful. Whenever I restart the mysqld...
View Articlepgpool2 not working on my Ubuntu i686 athlon i386 GNU/Linux
I am trying to implement replication and load balancing on my Ubuntu i686 athlon i386 GNU/Linux.for creating database clustures I have installed postgresql contrib 9.1.11 having initially database...
View ArticleHow to use mysql live update on a mysql table between localhost and remote...
I have mysql table created/modifying in localhost, and I need to update those in my remote database. I have gone through lot of post regarding this scenario and I found out that I need to use mysql...
View ArticleCopy Multiple Tables into ONE Table (From Multiple Databases)
I've got multiple identical databases (distributed on several servers) and need to gather them to one single point to do data mining, etc. The idea is to take Table1, Table2, ..., TableN from each...
View ArticleIs PostgreSQL replication production ready?
How does PostgreSQL native replication compare to MySQL? I know asynchronous replication has been supported for longer than sync, which is recent. Is synchronous reliable to be used in real projects?
View ArticlePull and Push Replication from Couchbase local Server to Android Phone
I am developing and android app which uses couch db.I am new to couch DB.I have set up a couch server locally as given in this manual (http://docs.couchbase.com/couchbase-manual-2.5/cb-install/) and...
View ArticleList of Expired Merge Subscribers
I have a setup of merge replication. Sometimes, subscribers will not be able to sync within the retention period set in the publication. How can I get a list of expired subscribers to a merge replication?
View ArticleWhat are alternatives to Replication to distibute data (Microsoft SQL Server)
Is anyone knowledgeable of alternatives to SQL Server replication? I have a scenario where separate databases will share a lot of the same data which complex queries will match against. We want to...
View Article3 Node Replica Set all became SECONDARY
my 3 set replica set all became secondary and I'm not sure why. db1 2014-12-12T02:43:55.067+0000 [conn1413096] end connection 10.0.64.12:58483 (512 connections now open) 2014-12-12T02:43:55.067+0000...
View Articlemysql master master replication, master log position not changing
I have setup master-master replication on database set on two servers (say 1.1.1.1 & 2.2.2.2), I have edited the my.cnf file to: server-id = 1 log_bin = /var/log/mysql/mysql-bin.log...
View ArticleMySQL 5.6 replication causes 'waiting for table lock'
All of the sudden queries on slave server stopped with status "Waiting for table level lock" I restart mysql service and stop replications and locking does not show up anymore. Once I turn replications...
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