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8
votes
1answer
2k views

Mysql Slave stuck in “System lock”

My MySQL slave is spending a lot of time in Slave_SQL_Running_State: System lock. I can see that the system is currently I/O write bound, and that it is processing the log, although slowly. Show ...
2
votes
1answer
1k views

pgpool2+streaming replication failover on only 2 servers?

I am trying to configure pgpool2 and postgresql 9.1 to handle failover. I currently have streaming replication running, and are using pgpool2 for read-only load balancing. I have 2 servers in my ...
1
vote
1answer
37 views

How to configure an additional BIND instance for a domain already described by other public name servers?

Background I have a small virtual server hosted by my provider and there I have configured a relatively simple combination of postfix, dovecot and roundcubemail (backed by nginx) that works OK. I ...
1
vote
1answer
105 views

Percona xtradb cluster with asynch slaves

I have a Percona xtradb cluster set up with 3 nodes. Node 1 is also set up as a master with an asynchronous slave. When I make an update to Node 1, it is replicated to the cluster as well as the ...
0
votes
1answer
24 views

Configuring different read and write targets for OpenLDAP

I have a new piece of infrastructure (a simple LDAP web service) that will be a drop-in replacement for something that currently exists in production. The backend OpenLDAP server will not be upgraded ...
0
votes
1answer
201 views

DNS Slave doesnot serve new record while master is down until restart

could anyone explain the behaviour of DNS slave. i am testing dns server, for internal purpose, and after configuring master slave everything works fine, but i am willing to understand the mechanism ...
0
votes
1answer
117 views

Replicate from slaves to master and viceversa

I've a great dilema here and didn't know how to solve it. I need to replicate a few tables from MySQL DB (slaves) to MySQL DB (master). Take as an example this: MySQL DB (master) table1 table2 ...
0
votes
1answer
232 views

How to setup geographically different primary/secondary, master/slave DNS services at domain registrar?

This is a followup question to my previous post Multiple free dns services redundant as name servers of a website? I would like to setup DNS services as primary/secondary, master/slave and would like ...
0
votes
1answer
416 views

Promote MySQL master-slave to master-master replication

I'll be doing a upgrade of a large MySQL 5.0 database to Percona 5.1 and I'm attempting to keep the actual downtime as short as possible during the upgrade, so the regular mysqldump + mysql import ...
0
votes
1answer
131 views

MySQL master-slave replication with more than 1 server

Is it possible to setup replication for database_A from master_A and database_B from master_B server? It looks like I can only set one master-host in MySQL configuration file. Thanks in advance.
3
votes
0answers
814 views

Pacemaker DRBD resource not getting promoted to master on any node

First off, I'm no linux specialist, I've been following tutorials and been working with the help of google, this worked out fine until now, but currently I'm stuck with a problem. I'm using CentOS 6.5 ...
0
votes
0answers
435 views

RockMongo Connection Issue with MongoDB Slave

I have a MongoDB Replication with Master-Slave (not RepliSet) I have configured RockMongo on two servers. But I able to login to master server through rockmongo but when I login to slave with rock ...