Percona XtraDB Cluster : Synchronous Replication Cluster for MySQL

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Insert in PXC Cluster are not equally distributed

I have another query with regards to pxc cluster i have 4 nodes in pxc cluster all nodes have the same cnf file and one server as haproxy. Config File Detail [mysqld] datadir=/var/lib/mysql ...
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36 views

Will large inserts crash a 3-node MySQL database cluster?

We have a 3 node MySQL database cluster than runs on Percona. I have a stored procedure that inserts a lot of rows in one hit, potentially over a million rows. I've been warned (by our DBA) this ...
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Percona XtraDB Cluster: Node going in hang stage again and again

I am getting below error again and again on Percona XtraDB Cluster nodes and after this my MySQL service is going in hang state. 2015-03-16 08:39:05 13254 [ERROR] WSREP: Unsupported key prefix: ^B: ...
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71 views

MySQL 5.5 Replication to Galera/Percona XtraDB Cluster

We are currently investigating moving our current MySQL 5.5 Master > 5 x Slaves (with Statement Based Replication, apx 250GB data and growing) to a HA clustering option. Mainly to provide greater ...
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35 views

Percona Cluster 5.6 (PXC) and replication filters

I wanted to double confirm the following information: Percona Cluster 5.6 implements Galera for syncromnous replicatrion. Does Galera replication support any replication filtering rules? such as: ...
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Percona XtraDB and innodb_flush_log_at_trx_commit=2

I'm running Percona XtraDB on a three nodes cluster. Each one has this piece of configuration: innodb_flush_log_at_trx_commit=2 sync_binlog=0 I perfectly know that this is not the safest ...
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133 views

Migrate existing database onto Percona XtraDB Cluster (using innobackupex?)

I'm setting up Percona XtraDB Cluster on 3 nodes to replace an existing MySQL database server. The existing databases will need to be migrated to the cluster with as little down time as possible. ...
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Choose prefered node for IST in Percona XtraDB Cluster

Percona XtraDB Cluster 5.5. Is it possible to use only selected donor node for IST? Like wsrep_sst_donor option for SST.
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Migrate from Percona Cluster to MariaDB Cluster

We are at present running latest version (5.6) of Percona Cluster. Since 5.6 upgrade we are having major stability problems and all minor updates are getting worse. Is there any possibility of ...
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81 views

How to migrate a mysql server in production to Percona XtraDB Cluster

I need some help : I have a mysql server in production and i want to migrate all the database to an existing cluster (percona xtradb). For now , my idea is : 1) Lock all tables 2) do a dump per ...
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789 views

Does it make sense to run a cluster of database servers in docker containers?

I'm currently looking into setting up a database cluster (MySQL Galera or Percona) but I have only 2 machines. However, according to many sources I've read (This article from the Mariadb KB), the ...
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355 views

Why Percona MySQL is crashing again and again

We have Percona MySQL Cluster running with three nodes on CentOS. Server : Percona-XtraDB-Cluster-server-56-5.6.19-25.6.824.el6.x86_64 One node is crashing repeatedly. Thread pointer: 0x18910ba30 ...
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288 views

Percona cluster + Wordpress blogs, low performance

We currently run ~ 900 WordPress blogs on several machines so was decided to move to load balanced environment with clustered db. I followed instructions from ...
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261 views

Cannot execute statement: impossible to write to binary log?

When I try to create a user story/issue in my my percona xtradb cluster I am getting below error. How to fix it? Error creating issue: Could not create workflow instance: root cause: while ...
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1k views

What are the drawbacks of using Galera Cluster instead of Master/Slave Replication?

What are the drawbacks of using Galera Cluster instead of regular Master/Slave Replication? Galera's 0 slave lag time, Synchronous replication and no Single point of failure seem very appealing then ...
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9k views

node unable to join a galera cluster; it fails during state transfer

It looks like the node is joining the cluster and then it fails… I have tried with both rsync and xtrabackup and it fails during state transfer. I seems to me that I am missing something real simple ...
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2k views

Percona Xtradb Cluster : How to speed up insert?

I recently installed a 3 full master node cluster based on Percona Xtradb (very easy install). But now i need to make some tuning to increase INSERT/UPDATE requests. Actually, i made around 100 ...
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695 views

Percona Cluster Failed with Haproxy : Connection Limit Exceeded

We have 3 node PXC cluster setup on amazon ec2. Its been working fine for around 4-5 months. Since last week, every node starting to fail due to MySQL connection limit exceeded error. we increased the ...
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191 views

Percona XtraDB Cluster With Async slaves

I have set up a 3 node percona cluster in amazon ec2. As our client required, i also had to set up an asynchronous slaves in another datacenter as well. Each async slave pointed to single percona ...
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2k views

Percona XtraDB Cluster and MySQL Replication

I've setup a 3-node multi master replication with percona xtradb cluster, it works perfectly. Now I've tried to add some read-only slaves setting up replication as usual but it seems the binlog ...
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1answer
1k views

Percona Node fails to join: Operation not permitted

Joining a new Percona node fails with: 130521 7:15:44 [Warning] WSREP: Failed to prepare for incremental state transfer: Local state UUID (00000000-0000-0000-0000-000000000000) does not match group ...
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765 views

Does this make my XtraDB Cluster hang?

After seeing the following in the error log on the second node: 121003 7:16:06 [Note] WSREP: Member 0 (joiner) synced with group. 121003 7:16:06 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 0) ...
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382 views

Percona XtraDB Cluster: How to skip SST when starting?

Is there a way to skip State Snapshot Transfer (SST) at startup on Percona XtraDB Cluster Server? wsrep_sst_mode=skip doesn't work: 121003 6:49:55 Percona XtraDB (http://www.percona.com) ...
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376 views

XtraDB Cluster Error : “IST first seqno 7 not found from cache, falling back to SST” in replication [closed]

I have a problem with MySQL clustering. My systems consist of: xtrabackup: version 2.0.2 MySQL: version 5.5.27 Distro: CentOS 5.7 64-bit my.cnf on the donor: [mysqld] binlog_format=ROW ...
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Scaling Percona datacenters: setup and replication

Since our startup has taken off nicely we are now meeting with some of those issues that you always assumed would NEVER effect you. We have already scaled alot of our application stack: we offloaded ...