I'm setting up a database which needs to be needs to provide High Availabilty.
My primary concern is high performance and robustness (I don't want something that will fail fast and badly). The database is accessed by the application at an average of 300 qps. It's will run on Xen VMs and it has some InnoDB tables as well as MyISAM tables. The VMs are connected via ethernet 100Mbit/s ethernet cables.
Which of the two - MySQL replication or DRBD - would you recommend in such a situation?
Or should I use DRBD to make the master database Highly Available and use MySQL replication on the slaves?
I'm a developer so these things are all not so easy for me to make a sound judgement.
Backlink research is the cornerstone of every link building campaign. There are a number of reasons you might want to check backlinks to a site. Here are some SEO tools that will help you find out who's linking to your site or to your competitors.
There's always a lot of talk around SEO tools in the webmaster and SEO community. Some say a good piece of SEO software is all you need to improve your search rankings and get that desired spot on top of Google search results.
I have kind of an odd problem. The time in my Unity bar is right, but the time in bash is 2 hours ahead.
$ date
Wed Jun 20 15:31:55 CDT 2012
Unity bar:
Wed Jun 20 13:31:55
Here are my etc configs:
$ cat /etc/timezone
America/Los_Angeles
locale:
$ locale
LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
Finally, I tried $ sudo dpkg-reconfigure tzdata and setting it to "Los_Angeles".
Has anyone seen anything like this?
Yesterday we announced the publication of the MySQL Connect Content Catalog.
We would like today to thank the MySQL Connect Content Committee members, and especially our external members, for their efforts helping us to build the best possible MySQL Connect program. The Call for Papers had generated a large number of great submissions (thank you all for that!) and it was indeed a tough job to select sessions among those.
So thank you very much, Sheeri, Erin, Giuseppe, Calvin and Yoshinori! Your input has been invaluable.
Learn more about MySQL Connect (San Francisco Sept 21-23).
Register Now and Save US$500 with the Early Bird Discount.
We love free Web tools, and CopyBlogger is a terrific small business marketing resource. We also have a nifty outsourcing site, plus the best free collaboration tool we've seen.
We love free Web tools, and CopyBlogger is a terrific small business marketing resource. We also have a nifty outsourcing site, plus the best free collaboration tool we've seen.
I've searched Google for a while on this and I'm not sure if it is easily or directly possible. I'm hosting a database on my cPanel server for a client which is accessed from their main website. As a result, I can't find a way to determine what amount of resources they are using. As there aren't any files under their account, cPanel reports the bandwidth at zero. I do know the stat programs don't monitor MySQL and that MySQL has a global statistics page that reports all usage on the server.
Is there a way to migrate from an old dedicated server to a new one without losing any data in-between - and with no downtime? In the past, I've had to lose MySQL data between the time when the new server goes up (i.e., all files transferred, system up and ready), and when I take the old server down (data still transferred to old until new one takes over). There is also a short period where both are down for DNS, etc., to refresh.
Is there a way for MySQL/root to easily transfer all data that was updated/inserted between a certain time frame?
mysql -u user -p pass -h remotehost
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 96
Server version: 5.1.36-community-log MySQL Community Server (GPL)
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
Suppose the remotehost's OS is linux,
how do I switch to shell mode?
If you work with SSMS, you’ll know how frustrating it can be when tasks you perform every day aren’t part of the core features. Malden Prajdic certainly did, which is why he developed his free SSMS Tools Pack. Now on its second version, Grant Fritchey explains the functionality of this great free plugin.
The Future of SQL Server MonitoringMonitor wherever, whenever with Red Gate's SQL Monitor. See it live in action now.
The very fast paced world of internet marketing Search Engine Optimization is the biggest thing, yet the biggest area of concern for e-commerce businesses. Uncountable SEO tools, tricks, tips, companies, experts etc etc, are now available to help all small business owners ultimately increase their website rank. Obviously people do get confused which way or tool do they use to make their website SEO compatible.
The very fast paced world of internet marketing Search Engine Optimization is the biggest thing, yet the biggest area of concern for e-commerce businesses. Uncountable SEO tools, tricks, tips, companies, experts etc etc, are now available to help all small business owners ultimately increase their website rank. Obviously people do get confused which way or tool do they use to make their website SEO compatible.
<b>Developer.com:</b> "Thanks to a number of well-designed tools, MySQL simply is a very easy database to "talk to," a convenience which is particularly important because developers often are tasked not only with constructing very complex schemas and queries, but also with monitoring overall server health and performance."
<b>The Inquirer: </b>"As operating systems increasingly become visual feasts, those who want to create useful interaction enhancements are having to bend over backwards thanks to closed source software in order to bring innovation to the user's environment."
Microsoft unveils "release candidate" version of Windows Server AppFabric tools for building and maintaining composite applications. First beta of the new BizTalk Server also released.
<b>LinuxLinks:</b> "To provide an insight into the quality of software that is available, we have compiled a list of 11 excellent plotting tools. Hopefully, there will be something of interest for anyone interested in producing high quality graphs."
Leaders never blend in with the crowd. Many people are under the impression that SEO tools will give you the best keywords possible. These are good for starters to increase your website page rank, and be seen by more visitors from your target audience.
The company continues its initiatives to open up to open source developers, with the release of two new tools for working with Outlook's PST file formats.
I have updated yesterday my Ubuntu 14.10 installation with apt-get dist-upgrade.
I was working all afternoon and after that I have rebooted computer. Once done it, lightdm doesn't starts (only gnome logo) and I can not view any of Ctrl + Shift + [1-6] terminals (cursor is blinking).
I have read a lot of posts with no success:
nividia/intel conflicts (I have a laptop with an Intel graphic card)
I have enabled nomodeset and tried all this options My computer boots to a black screen, what options do I have to fix it?
I have repaired grub
I can load recovery/livecd/windows and mount partitions and network without problem
I have all packages and system updated
Here my logs. X11 not shows any error or problem, is loading all needed drivers without problem.
How can I raise the level of debug?
Best regards.
I would like to make a custom clump of Network Admin packages, to be able to carry on a thumb drive, to administer Debian based machines.
Examples of what I would include so far:
nmap
traceroute
vnstat
zenmap
*
I know every situation may be different, but I would like to build a toolbox I could bring everywhere, and am looking for advice on other tools which would work. (If there is a similar question, I am fine being directed there)
The MySQL EXPLAIN statement provides insight into MySQL's query execution plans. This video demonstrates how you can use this powerful feature to boost your MySQL database performance.
The MySQL EXPLAIN statement provides insight into MySQL's query execution plans. This video demonstrates how you can use this powerful feature to boost your MySQL database performance.