Comments on: xtrabackup-0.9.5rc http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/ Everything about MySQL Performance Thu, 29 Jul 2010 19:06:57 +0000 http://wordpress.org/?v=3934 hourly 1 By: khem http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-720973 khem Sun, 07 Feb 2010 08:24:58 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-720973 agree with Nils :( agree with Nils :(

]]> By: Nils http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-684779 Nils Thu, 26 Nov 2009 07:33:01 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-684779 Seems like there is no source tarball on the Server, only source rpm? Seems like there is no source tarball on the Server, only source rpm?

]]> By: r4i칩 http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-677951 r4i칩 Mon, 16 Nov 2009 05:26:07 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-677951 Xtrabackup: * Free * takes 1.1% longer (2 min during a 3 hour backup) * uses 1.4% more space (1G more in a 70G backup — this was for uncompressed backups) * uses 1.115% more cpu overall * split as 0.12% user, 0.66% nice, 0.025% system, 0.31% more iowait, 0% more steal Xtrabackup:

* Free
* takes 1.1% longer (2 min during a 3 hour backup)
* uses 1.4% more space (1G more in a 70G backup — this was for uncompressed backups)
* uses 1.115% more cpu overall
* split as 0.12% user, 0.66% nice, 0.025% system, 0.31% more iowait, 0% more steal

]]> By: Mark Callaghan http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-673613 Mark Callaghan Fri, 06 Nov 2009 03:08:34 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-673613 That is a very nice feature as I know several DBAs who really don't like to run FLUSH TABLES WITH READ LOCK on a master. That is a very nice feature as I know several DBAs who really don’t like to run FLUSH TABLES WITH READ LOCK on a master.

]]> By: Vadim http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-673610 Vadim Fri, 06 Nov 2009 02:47:05 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-673610 Mark, We have added --no-lock option which allows to run xtrabackup without lock, and you can get binary log information from output, which is taken from InnoDB transactional log. It is safe to use if database is InnoDB-only Mark,

We have added –no-lock option which allows to run xtrabackup without lock, and you can get binary log information from output, which is taken from InnoDB transactional log. It is safe to use if database is InnoDB-only

]]> By: Mark Callaghan http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-673596 Mark Callaghan Fri, 06 Nov 2009 01:59:10 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-673596 Xtrabackup and InnoDB hot backup do hot backups. A backup is hot when you can perform it on an active database. While there is a brief pause from the need to run FLUSH TABLES WITH READ LOCK (and that pause is to be eliminated in future versions of MySQL and forks) neither of these products require activity to be stopped. Xtrabackup and InnoDB hot backup do hot backups. A backup is hot when you can perform it on an active database. While there is a brief pause from the need to run FLUSH TABLES WITH READ LOCK (and that pause is to be eliminated in future versions of MySQL and forks) neither of these products require activity to be stopped.

]]> By: gulf http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-672737 gulf Tue, 03 Nov 2009 13:48:13 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-672737 Does the xtrabackup support the partition table? For example, I just want to backup one partition. Does the xtrabackup support the partition table? For example, I just want to backup one partition.

]]> By: Csfor http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-670178 Csfor Thu, 29 Oct 2009 09:14:59 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-670178 The bug has just been fixed. See http://bazaar.launchpad.net/~percona-dev/percona-xtrabackup/trunk/revision/103 . Thanks so much. The bug has just been fixed. See http://bazaar.launchpad.net/~percona-dev/percona-xtrabackup/trunk/revision/103 . Thanks so much.

]]> By: Sheeri K. Cabral (Pythian) http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-669345 Sheeri K. Cabral (Pythian) Mon, 26 Oct 2009 22:08:10 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-669345 Csfor -- both InnoDB hot backup and Xtrabackup are "warm" backups -- they do take some resources, but even on busy servers I haven't seen crashing -- if you're having crashing, you want to adjust some of your parameters (like memory usage) so they're not right on the edge of crashing, or run the backup at a lower peak time. There are lots of crashing bugs in older versions of MySQL, upgrading might fix your problems if you have version more than a few months old. Pythian has clients on Percona's build of MySQL and the official MySQL builds, and we use both InnoDB Hot Backup and Xtrabackup on different clients, and we don't find crashing. We did find similar usage for Xtrabackup vs. InnoDB hot backup - so Xtrabackup isn't causing really different loads than InnoDB hot backup. (we found that xtrabackup consistently used 1% more resources, which isn't that big of a deal, especially considering xtrabackup is free and Innodb Hot backup is very expensive) -- the numbers are here: http://www.pythian.com/news/4177/taste-test-innobackup-vs-xtrabackup Csfor — both InnoDB hot backup and Xtrabackup are “warm” backups — they do take some resources, but even on busy servers I haven’t seen crashing — if you’re having crashing, you want to adjust some of your parameters (like memory usage) so they’re not right on the edge of crashing, or run the backup at a lower peak time.

There are lots of crashing bugs in older versions of MySQL, upgrading might fix your problems if you have version more than a few months old. Pythian has clients on Percona’s build of MySQL and the official MySQL builds, and we use both InnoDB Hot Backup and Xtrabackup on different clients, and we don’t find crashing.

We did find similar usage for Xtrabackup vs. InnoDB hot backup – so Xtrabackup isn’t causing really different loads than InnoDB hot backup. (we found that xtrabackup consistently used 1% more resources, which isn’t that big of a deal, especially considering xtrabackup is free and Innodb Hot backup is very expensive) — the numbers are here: http://www.pythian.com/news/4177/taste-test-innobackup-vs-xtrabackup

]]> By: Nils http://www.mysqlperformanceblog.com/2009/10/24/xtrabackup-0-9-5rc/comment-page-1/#comment-669296 Nils Mon, 26 Oct 2009 15:12:20 +0000 http://www.mysqlperformanceblog.com/?p=1523#comment-669296 "Barracuda file format as well as compressed tables are supported. " Does that mean that didn't really work beforehand? “Barracuda file format as well as compressed tables are supported. ”

Does that mean that didn’t really work beforehand?

]]>