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8 views

MySQL Server 5 with Galera on Debian [on hold]

i have installed Debian 7.7 with mysql-server 5.5.34-25.9 and galera 25.2.9. all working fine, my Cluster is running perfectly. for load balancing i use ha_proxy. now i have a few questions: 1) if ...
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0answers
15 views

Installing MariaDB + Galera via yum fails with “No package MariaDB-Galera-server available”

I'm spun up a brand new Cento OS 7 virtual machine and I'm following this tutorial to install a MariaDB + Galera cluster. I've added the MariaDB repos as follows: vi /etc/yum.repos.d/MariaDB.repo ...
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0answers
9 views

Running MariaDB Galera (5.5) Cluster on Debian failing to start

I am struggling to get a MariaDB Galera cluster running on my Debian 7 machine. I am trying to setup a cluster with two nodes both running on Debian 7. When I first install Galera I can run it find. ...
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0answers
54 views

What is causing PHP-FPM's connections to our galera cluster to be limited?

On our current live site, we have had a flood of page requests from a single IP over a ~60 second window, which caused PHP to start failing to connect to the database. Our error logs have a lot of ...
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0answers
33 views

WSREP galera cluster warning conflict state 7

I have started to use a pxc cluster, after a flow control deadlock I had to kill all but one instance. And now on this single instance I have the below warnings streaming in the log all the time: ...
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1answer
44 views

Setup Galera Cluster with two servers

Can I Create Gallera Cluster with two servers ?? Actually I have 6 servers: 2 Server for Load Balancer 2 Server for Apache Or anyone here can suggest me how to create High Availability Web Server ...
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0answers
48 views

Mixing percona and mariadb in a galera cluster

Assuming both percona and mariadb runs the same engine (innoDB), can i use them interchangeably in a galera cluster? If it is possible, is there anything I should know before doing it?
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1answer
83 views

HAProxy's Flooding MySQL Connections

I have a setup of 2 HAProxy servers using the KeepAlived process for failover, and each HAProxy is configured to load balance mysql connections to my MariaDB Galera cluster of 3 nodes. I'm trying to ...
2
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1answer
303 views

MariaDB, Galera, xtrabackup - do I need the binary log?

We are using a MariaDB Galera Cluster with 3 nodes. For the state transfer we are using xtrabackup. We have some problems with the binary logs - they got too big and crashed the server. We can ...
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1answer
236 views

Configuring resources for Galera and Corosync/Pacemaker

I can't seem to find a proper way of setting up resources in pacemaker to manager my Galera cluster. I want a VIP that will failover betwen 5 boxes ( this works ), but I would also like to tie this ...
1
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1answer
362 views

Error when i install mysql + galera

I want install mysql server + galera in my vps Centos 6.5. When I install yum update -y && yum install wget libevent perl mysql-y wget ...
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vote
2answers
245 views

Query cache for MariaDB Galera cluster

I've read from multiple sources now that you can't have query caches with Galera, but my current application could really benefit from a query cache. I'm load-balancing this cluster with HAProxy and ...
1
vote
1answer
229 views

MariaDB how to handle 2/3 node failure in multi master cluster.

I run 3 node multi master MariaDB galera cluster. It basically works for me how it is. When one node fails, two other work and it's fine. But I'm wondering is there a way for it to keep working on ...
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0answers
189 views

Bootstrapping Galera Cluster

We would like to use a MariaDB Galera cluster for our project. The Galera cluster works and seems to work fine. If some nodes of cluster are down the cluster continues to work. But after a complete ...
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votes
1answer
57 views

Does Galera Arbitrator require a SST?

Does Galera Arbitrator require a SST? It says it's stateless but it's not clear if a SST i required. The reason for asking is that I'm having a large database and would like to skip the SST if ...
1
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1answer
875 views

Deadlock trigger on MariaDB Galera cluster

I can trigger a deadlock on our (test) Galera cluster when updating a row with the same data. INSERT INTO test (id, val) VALUES (1, 42), (2, 47); -- Query OK, 2 rows affected (0.01 sec) -- Records: 2 ...
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2answers
1k views

new Percona XtraDB nodes unable to join cluster

I have a four node Percona XtraDB cluster. Each night, one node shuts down for a backup and subsequently rejoins the cluster. This has run fine for quite some time now. Last night, the backup node ...