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Displaying posts with tag: Xtrabackup (reset)
Daily backup OpenStack single MySQL with Percona innobackupex including the /etc directory

this is a short script for daily backup of the OpenStack MySQL and the /etc direcotry of the control node

[root@dev-epg-rhos-01 BACKUP]# cat /root/bin/
# done for
# Barcelona Thu Oct 17 16:30:36 CEST 2013

exportDate=`date +%Y-%m-%d.%H.%M.%S`
test ! -d "${export_DIR}" && echo "$(date) : creating ${export_DIR}" && mkdir -p "${export_DIR}"
rsync -avh /etc ${export_ETC_DIR}
echo "=========================================================================================================" >> ${export_DIR}/README.restore.with.innobackupex
echo "HOW to restore this FULL mysql backup" >> ${export_DIR}/README.restore.with.innobackupex
echo "=========================================================================================================" …
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Percona XtraBackup 2.1.4 is now available

Percona is glad to announce the release of Percona XtraBackup 2.1.4 on August 9th, 2013. Downloads are available from our download site here and Percona Software Repositories.

This release is the current GA (Generally Available) stable release in the 2.1 series. Percona XtraBackup is an open source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases.

New Features:

  • Percona XtraBackup has introduced …
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2 new features added to Percona XtraDB Cluster (PXC) since 5.5.31

With the last Percona XtraDB Cluster (PXC) release, two major features were added:

* a new command to bootstrap the cluster was added to the init script
* SST via Xtrabackup now supports Xtrabackup 2.1 features

In this post, I want to explain the benefits of these added features and how to use them.

If you follow the mysqlperformanceblog regularly, you’ve already noticed that there are several ways to start a node and that it’s not always easy to start the node that is supposed to bootstrap the entire cluster.

See :
- …

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Percona XtraDB Cluster (PXC) in the real world: Share your use cases!

The aim of this post is to enumerate real-world usage of Percona XtraDB Cluster (PXC), and also to solicit use cases from the readers. One of the prominent usages in the production environment that we have come across (and our Percona consultants have assisted) is that of HP Cloud. There is a post about it here by Patrick Galbraith of HP. The post focuses on their deployment of PXC for HP Cloud DNS. The post focuses on the key aspects of synchronous replication setup with high-availability guarantees like split-brain immunity.

Nobody likes to debug async replication while its broken or …

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xtrabackup_51: not found & no ‘mysqld’ group in MySQL options

Recently I happen to setup a new MySQL instance with my tools – a standard MySQL 5.1+, xtrabackup setup and last-hotbackup.tar.gz. To restore from the backup we used xtrabackup binaries and ran into issues following standard commands (assuming no changes): To prepare the backup I used apply-log as follows: $] innobackupex-1.5.1 --defaults-file=/usr/local/mysql/data/backup-my.cnf --apply-log  /usr/local/mysql/data --ibbackup […]

Why use encrypted backup with Percona XtraBackup 2.1 for MySQL?

We just released our first alpha of Percona XtraBackup 2.1 for MySQL and with it we included the ability to encrypt backups on the fly (full documentation here). This feature is different than simply piping the backup stream through the openssl or gpg binaries, which is what some people have used in the past. A big benefit of using the built-in encryption is that multiple CPU cores can be used for encryption (with the --encrypt-threads option). You can also combine compression and encryption, each using multiple CPU cores.

One advantage of …

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Sessions at Percona Live MySQL Conference 2013: fun, competition, novelties, and a free pass

The Percona Live MySQL Conference and Expo 2013 is almost 1 month away. It's time to start planning, set the expectations, and decide what to attend. This post will give a roundup of some of the sessions that I recommend attending and I look forward to.

First, the unexpected!

After much talk and disbelief, here they come! Oracle engineers will participate to the Percona Live conference. This is wonderful! Their participation was requested by the organizers, by the attendees, and by community advocates, who all told the Oracle management how important it is to be in this conference. Finally, they have …

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A difficult XtraBackup restore

There was one MySQL server with a Adaptec Raid controller and 4 disks. One of the disks was having media errors and caused the whole SCSI bus to become unavailable.

This resulted in a corrupted InnoDB table.

Luckily we did have backups. A full backup and incrementals.

So to restore the backups I installed XtraBackup and MySQL 5.5 on another server.

Then the first step was to 'prepare' the backup. This worked okay for the full backup (redo only).

The second step to add the incremantals failed for the first incremental. This was easily resolved by specifying the full paths instead of relative paths.

Then the backup was fully prepared using the redo logs and undo logs.

As XtraBackup doesn't backup your my.cnf we copied the my.cnf from another server and adjusted it for this server. The my.cnf in your backup only contains everything needed for a …

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Chain Copying to Multiple hosts

This week I was given the task of repopulating our entire primary database cluster.  This was due to an alter that had to be performed on our largest table.  It was easiest to run it on one host and populate the dataset from that host everywhere.

I recalled a while back reading a blog post from Tumblr about how to chain a copy to multiple hosts using a combination of nc, tar, and pigz.  I used this, with a few other things to greatly speed up our repopulation process.  As I was repopulating production servers, I did a combination of raw data copy and xtrabackup streams across our servers, depending on the position in our replication setup.

For a normal straight copy, here’s what I did:

On the last host, configure netcat to listen and then pipe the output through pigz and tar to …

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Backup your sandbox with XtraBackup

Today I tried to make incremental backups of a MariaDB instance in a MySQL sandbox with Percona XtraBackup.
I used the recently released XtraBackup 2.0. And of course there is documentation about making incremental backups. 

MySQL sandbox makes it easy to run many different MySQL versions on one machine. It does this by changing the port number, data directory, UNIX socket location and a whole lot more.

So I first started with a full backup and after that I used that backup as a base for the incremental backups. To do that I had to specify the port number which is 5522 and the username and password for the msandbox account. As MySQL uses a UNIX socket instead …

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