Percona : MySQL open source fork with performance improvements

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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
18 views

“Failed to configure php55-mysql” with MacPorts and Percona 5.5 [closed]

I'm getting this error trying to install or update Percona using MacPorts on Max OS X (Mavericks 10.9 in my case) ---> Configuring php55-mysql Error: Failed to configure php55-mysql, consult ...
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1answer
25 views

Percona startup fails: mysql can't access directory for file creation

I found a few questions and suggestions for similiar problem, unfortunately nothing seems to work for me, so please excuse me if this is double (and point to right source)... Server is Fedora Beefy ...
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0answers
29 views

Percona MySQL LDAP authentication fails through .NET MySQL connector

Basically, MySQL uses its native authentication, where usernames and passwords are stored in mysql.user table. MySQL authenticates user against the credentials stored in mysql.user table. Our ...
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0answers
18 views

remote connect to percona is slow

SOLVED This is the age old mysql issue of skip-name-resolve. Works like a charm. Must have been in my old my.cnf and I forgot about it. I had a fairly large MySql Database and figured I would ...
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34 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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2answers
777 views

can't install mysql-devel on centos 6.5

I need mysql-devel package to be installed on my CentOS 6.5 running Percona 5.5 (already installed & running). When I try to install the devel package like this: yum --enablerepo=remi install ...
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0answers
34 views

PHP-FPM slowlog and Mysql lost connection

I was having an issue with PHP-FPM and mysql. When I needed to process an input file that would generate several selects/inserts/updates for each line, it would stop after approximately 60s with ...
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91 views

my.cnf doesn't work in my server

now i am using percona server 5.6 on CentOS 6.5. I wanna change query cache setting. I tried to change setting /etc/my.cnf. but it didn't applied. To investigate whether my.cnf is read correctly,all ...
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1answer
153 views

How can I resolve libmysql with Percona now that they've caused a yum conflict with their packages?

A script I wrote a few months ago has provisioned probably 100 or more virtual servers with a LAPP stack (Linux Apache Percona PHP). Recently, the following line is failing because yum has ...
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0answers
50 views

MySQL SSL Problems

I need to configure SSL for a MySQL server. I've read all of the directions for doing self-signed certs but it's preferred that I sign and use the certs from a different CA running AD Certificate ...
0
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1answer
46 views

Percona UDF - FUNCTION MURMUR_HASH does not exist

We have a 5.5.28-29.3-log mysql master that has the percona UDFs installed including murmur_hash. We installed mysql on new host but I can't seem to find where to get the UDFs from. This doc suggests ...
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63 views

Unexplained excessive database response times - very powerful hardware, tiny database

I've a strange problem that's repeatedly troubled me across 3 different servers now. The problem Please see the graph from NewRelic showing the huge amount of time spent in the database. The ...
1
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1answer
195 views

Duplicating data between two Percona Xtradb clusters using MySQL replication

We currently have a 3 node Percona Xtradb cluster running in a single data center. We want to add fault tolerance in case of disaster to prevent reliance on a single data center and synchronize our ...
1
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1answer
300 views

MySQL Socket configuration issue in my.cnf

I've got an issue that's causing very long "time in database" in my application. The DB is Percona MySQL 5.5.35. The application works perfectly, and can read/write from the database just fine. The ...
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1answer
73 views

Cannot open './/ib_buffer_pool' for reading: No such file or directory

I've realised that my Percona DB which has several InnoDB tables doesn't actually have InnoDB buffer pool running as it wasn't specified in the my.cnf. I had a buffer pool size specified of 256MB, ...
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3answers
78 views

What could cause these (see graph) spikes in DB response times?

I've a LAMP stack running Percona MySQL. Via New Relic, I'm monitoring/tweaking/tuning my new server ready for it to be used live. Something that's irritating me though, is that I get periodic ...
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107 views

Force execution of a chef script before the first one finishes

Following is section of code that is creating the problem for me. Everything works fine but then in order to upgrade percona, I need to run the 'mysql_upgrade' step while the 'mysql_safe' step is ...
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4answers
308 views

Heavy production MySQL/Percona Database in openvz container

So I'm currently running a MySQL 5.1 database, with the following specs: Proc: Intel(R) Xeon(R) CPU E5-1620 0 @ 3.60GHz RAM: 64 Go disks: 2x 100 Go SSD (RaidSoft) I'm planning to migrate my ...
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0answers
15 views

Percona adding node to cluster safe?

I had a cluster with 3 nodes and 2 of them died, leaving only node 1 working, and this is a production environment that cannot stop. Is it safe to re-add one node to the cluster? Thank you
0
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1answer
131 views

Percona on EC2 ephemeral storage (part of XtraDB cluster)

We have a MySQL DB of roughly 100GB and want to move it into EC2. EBS volumes seem fairly slow for running MySQL databases (even with provisioned IOPS) and although we could use RAID10 to improve this ...
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70 views

mysql - measure amount of write

System : Centos 6.4, PerconaDb/MySQL 5.5.31 Im running relatively small mysql database with some 30 databases, total amount of 12Gb, but heavy on reads, updates and writes (texts, posts, user data ...
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1answer
397 views

installing XtraBackup with libmysqlclient.so.18

Current situation I'd like to install XtraBackup on my VPS (Centos 5) where my main database is running. During the rpm install it told me that it misses a dependency called perl(DBD::mysql). When I ...
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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 ...
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2answers
3k views

Installing a third party application package on CentOS 6.4 fails due to missing dependencies libcrypto.so.10 and libssl.so.10

This is a Canonical Question about OpenSSL binary compatibility issues between Red Hat Enterprise Linux (and its derivatives) 6.4 and 6.5. This issue applies to a wide variety of third party ...
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1answer
240 views

MySQL memory usage - Periodically need to run FLUSH TABLES or memory usage keeps growing with large-pages turned on

After switching our rather memory + physical core rich database server to large-pages, we have noticed a small issue. The memory usage almost looks like there is some sort of memory leak. But ...
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2answers
170 views

Percona 5.6 not starting automatically after server reboot on Ubuntu with Virtualmin

I've got a new install of Ubuntu 12.04 + Virtualmin. I've upgraded from the default mysql 5.5 to Percona 5.6. Everything works except for one problem: when the server reboots, Percona is not ...
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77 views

How to compile MySQL (Percona) with jemalloc installed under custom prefix?

My jemalloc is installed under /opt/jemalloc, how to compile MySQL/Percona with the support of jemalloc? The standard option is cmake . -DCMAKE_EXE_LINKER_FLAGS='-ljemalloc' -DWITH_SAFEMALLOC=OFF ...
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1answer
38 views

Dev mysql node with Percona

I have been tasked with creating a Development mysql instance, We currently have a 7 node Xtradb cluster, is there any way to have this node a few hours behind, or not allow replication back to the ...
1
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1answer
242 views

Percona: Got an error writing communication packets

Since a few days, two of our php-applications (symfony2) are reporting the following errors in mysql-logs: [Warning] Aborted connection 253 to db: '$appname' user: '$appname' host: 'localhost' (Got ...
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1answer
208 views

mysqld: unrecognized service after installing Percona mySQL

Fresh cloud server running Centos6. Trying to install latest Percona $ sudo rpm -Uhv http://www.percona.com/downloads/percona-release/percona-release-0.0-1.x86_64.rpm $ sudo yum install ...
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1answer
713 views

MariaDB / MySQL galera cluster nodes won't join

I'm setting up a MariaDB Galera cluster and I can’t seem to get the nodes to join each other. They both start up without errors but never seem to join, the status is always disconnected: MariaDB ...
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2answers
2k views

MariaDB Cluster vs Percona Cluster for MySQL

What are the advantages and and disadvantages between the two? I've only been able to find information on these two implementations without any specifics on clusters. I'm currently implementing a ...
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1answer
628 views

PHP fails to load MySQL modules - “libmysqlclient.so.18” error

I'm installing a new CentOS 6.4 box, to move my websites over from my current 5.9 box. I've ended up with Apache 2.2.4, PHP 5.4.16 (via "powerstack" repo), and Percona 5.6.13 (via percona's own ...
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1answer
136 views

installing Percona XtraDB Cluster on Ubuntu 13.04

So, a bit of explanation of the big picture: I am trying to get multiple PXC instances running on a single machine, replicating via Galera to each other. I am running Ubuntu Server 13.04 amd64 in a ...
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0answers
264 views

Recurring locks and slowdowns on a Percona XtraDB Cluster

I have 5 dedicated servers (identical machines: 32 cores, 96GB of RAM, SSD drives in RAID and gigabit ethernet link) configured with Percona XtraDB Cluster. There's a recurring problem causing a ...
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52 views

Percona XtraDB cluster not replying to queries

Since last month, suddenly our percona cluster started to have connection issues as discussed in Percona Cluster Failed with Haproxy : Connection Limit Exceeded question. As @RolandoMySQLDBA ...
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1answer
220 views

syntax error, unexpected $end, expecting FTS_TEXT or FTS_TERM or FTS_NUMB or '('

I have many messages like the following in /var/log/mysqld.log What does it mean? ...
-1
votes
1answer
126 views

Backup/Recovery like barman for MySQL [closed]

I'd like to have a Backup/Recovery tool for MySQL (MariaDB/Percona) servers which has somehow the same features as barman has for postgresql take full backups on a regular basis (xtrabackup, but ...
2
votes
1answer
177 views

Percona and MySQL audit

I am trying to audit MySQL commands for users on Percona. Current version of Percona is 55-5.5.22-rel25.2.237.rhel5. The following URL gives guidance, however I do not know how to get it working. ...
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1answer
223 views

MySQL high memory consumption with poor performance for queries, which settings to tweak?

I have a scenario with a rather large database. It is about 3GB and I'm hitting some walls with system resources. For example, here is an example of htop output: You can observe that there are a ...
2
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3answers
90 views

Find which mysql is running

I have installed mysql 5.5 and percona 5.5 in the same machine. I am not able to identify wheather the running db is mysql or percona. IS there is any way to identify the difference.
1
vote
1answer
270 views

Percona on 2nd node will not start

I have setup two Vagrant VMs to simulate Percona XtraDB Cluster for our development needs. The first VM comes online just fine, and everything works. However, when I try to start Percona on the 2nd VM ...
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1answer
67 views

MySQL to Percona page load time increase?

Page Time: 0.0915s Memory: 5.0191 MB (Peak: 5.4852 MB) Queries (10, time: 0.0037s, 4.1%) After doing a change from MySQL to Percona my Page Time actually increased. Is that just because it lessens ...
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1answer
85 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
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1answer
642 views

Percona-Cluster: backup and restore procedure

I'm trying to restore a full backup taken from one node of a three-node percona cluster (percona cluster 5.5, galera 2.1, wsrep sst method is rsync, innodb tables only). Backup was taken like this: ...
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1answer
1k views

Trouble setting up a Percona XtraDB cluster on 2 servers

I'm trying to set up a Percona XtraDB cluster on two machines.. but i'm having a terrible time in getting the second machine up and running. I have used this article as a reference, and while it ...
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4answers
307 views

quick rpm install

I am trying to install percona server. This is a test machine and installed packages do not really matter. What all I need to do is install percona mysql server. ...
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1answer
1k views

Percona server won't restar after datadir change

I installed percona from percona repository on a ubuntu 12.04 server which has a solid state drive. I thought i would rather put the datadir on the Solid state drive and put partition on normal sata ...
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1answer
277 views

installing percona mysql on centos [closed]

From where will I get the mysqldump file from /usr/bin of percona mysql server (32 bit centos 5)? Is it available on the web without installing the software? In other words I am collecting all ...