Using Jboss as7.0.2.Final we have created cluster of four Node N1,N2,N3,N4.
Here N1 is master Node.
After creating cluster of (N1+N2+N3+N4) there is requirement to Unregister slave Node N2 from cluster.
Due to some restriction we are not able to use "Web Managment Interface".
Is there any way to Unregister Node N2 from cluster using "JBoss Application Server management API"?
If using "Comm
What's the secure/proper way of restarting the MySQl slave server.
I need to reboot the machine in order to update the kernel and apply some configuration changes.
I've tested it on my lab and unfortunately it didn't work properly:
I powered down slave server.
I've created new database with one simple table on the master server
I powered up the slave server (I haven't noticed any errors in the
In a master-slave replication environment, what is required to automatically promote the slave as the master if the master goes down. What are common practice used to change the database reference from an application if the heartbeat of the master database is not detected?
Do I need a cluster to achieve this or is simple 2 machine environment sufficient?
Does the current version of Hadoop support any kind of built in cluster to cluster replication? or is it all an manual process? Does Hadoop support any kind of master-slave replication like Gluster's Geo-Replication?
Background:
I am currently evaluating different storage solutions for multiple datacenters. I have two datacenters and I want to run separate clusters in each.
I am trying to develope a cluster.
when I ssh my slave node from master it gives error:
Permission denied (publickey).
whereas it works fine, when I ssh my master node from slave!
I puzzled :roll:! please assist me sorting this out.
I have replication setup as follows
Master A ----> Slave B ------> Slave C
\-------> Slave D
\------> Slave E - H
I use this setup because I need a local copy at the office server (that is slave C). I don't want to put extra strain on Master A because it's already receiving all of the inserts and extra load from the slaves connections.
I have just setup one master and one slave server, but its not working..
On my website I connect to the slave server and I insert some rows, but they do not appear on the master and vice versa..
I was setting the MySQL Replication for master -> slave/master -> slave
and Replication for master -> slave its works fine but when
i have enable this option in my.cnf
log-slave-updates=1
for updating the master bin log my replications is starting be slower and the time
Seconds_Behind_Master
is growing.
I've created a slave server from live machine which is acting as a master now.
I use the following procedure to create it:
mysqldump --opt -Q -B --master-data=2 --all-databases > dump.sql
then I imported this dump on the new machine, applied the "CHANGE MASTER TO..." directive with a log file/position from the dump.
Please note that I have around 8000 databases and I didn't stop the maste
Email this page
