Is there any tool which can monitor the requests and responses between a MySQL server and clients? Basically I want to know how many requests my web app makes to the mysql server and analyze the performance.
Is there any similar thing available for MSSQL server also?
Here is a bash script to monitor MySQL requests: http://blog.taragana.com/index.php/archive/monitoring-mysql-queries-using-bash-script/ And here is web-based variant of monitor: http://webyog.com/en/ (check out MONyog screenshots to understand is it really what you need).
Wireshark will do the trick. Wireshark is a general purpose protocol analyser and includes fitlers for a variety of applications including Mysql.
I've never used it myself, but MySQL proxy should do what you want.
Related
I was wondering if the default installations of Apache and MySQL on Windows/Linux are multithreaded or not?
It depends on how to look at it.
MySQL allows you to run multiple threads at the same time (this comes to available CPU/RAM resources), but it won't allow you to run a single query using multiple threads.
Apache is multithreaded, this is the only way how the web application server could respond to multiple requests from different clients.
Yes, Apache and MySQL multithreaded.
By the way, they run as a single process on the server.
Yes. Servers have to be able to deal with many connections at once. Everything has to be on asynchronous threads.
Is there any working solution for MySQL to be able to request data directly via HTTP/jsonp way?
I need to provide ready SQL statement to the server.
Something with SQL-templates etc.
There is beta version of mysql 5.7 that does that
MySql experimental MySQL HTTP API
I am currently trying the following alternatives:
YOG-Sql Tunnel in PHP and
Others: (1) undergo writing some webservices (java - php - c), (2) use 'mysql proxy' or 'mysql tunnel' (3) Code everyhing in gcc and run a proxy as http.
Tried many, stayed with YogSQL Tunnel (lot easier) - BTW ALL THOSE DID NOT GAVE SAME REAL-TIME RESULTS AS EVERYTHING INSIDE THE SAME DATACENTER (2 servers) or a gigabit network (250k - 500k records/second). So, latency may be a killer on one's ubiquitous cloud computing.
No, there is no way to do this.
I tried NGINX http add-on modules
ngnix really rocks, on static html even amazon free was outstanding (1ms wait) on 3000 requests/sec. Specific SQL modules, whatsoever, may be memory-consumig if goes heavy loader.io.
I have developed several websites on my local host for school. I can program database driven aspects of a webisite such as a blog on my own no problem. At school I used a MySQL DB which was hosted on a dedicated server, so when the server went down I could not have access to my data. I also have a mysql DB on my localhost but...my question is this: If i use the MySQL DB on my localhost, won't I only have access to the data when my computer is running so that my site can make server requests?
How can I set up any kind of DB for my site that is reliable and doesn't depend on my localhost to act as a DB Server?
I am now developing in .NET
Thanks. PS I don't have access to schools' server any more.
PPS I still don't have a site set up through a hosting provider...probalby going to go with godaddy
You'll need a server for that. A server will cost you on a monthly basis, I haven't heard of any free mysql servers, someone else may be able to help you with that.
Regular hosting providers supply PHP and MySQL server. I run my sites on Dreamhost (www.dreamhost.com)
It might also be worthwhile to look into Amazon EC2 : http://aws.amazon.com/ec2/
Also Amazon RDS for pure database only usage : http://aws.amazon.com/rds/
They provide a pay as you use service and the tier 1 service is free for the first year as I understand
There's no magic, you have to host your DB on a server that will run 24/7. Could be on the internet, it depends on the firewalls surrounding you.
The website will always depend on some sort of database server, why so worried that your database will be unreachable? Your webserver can go down also and will have the same consequences as the db.
Why don't you get some paid hosting? It is fairly cheap these days, for around 30dollar/year you will have some reliable hosting. When the DB will break down, it is not your responsibility.
If you don't want te be dependent of MySQL, you will need to use plain-text database that will be maintained by PHP or something.
You might consider running the MYSQL in i.e. a cloud provider, like Amazon EC2. It will certainly cost some money.
Are there any database only hosting services?
I need a MySQL only hosting service but I couldn't find any. All mysql hostings are part of a package e.g. PHP + MySQL.
I need it for development purposes. Having my PHP files somewhere else I can remotely connect to this mysql server and once an application is ready I can put that on a server having both PHP + MYsql. [well, there a some reason to have this kinda setup, if you have something to suggest please do.]
Any suggestion/recommendation if you have used any.
Thanks
The problem with a database-only host would be the security. The database need to be accessed over the Internet, thus username and password to access it are sent over the Internet. Even though you could add encryption and other protection, there's still a risk that the security is breached.
In general, you should never allow direct access to databases over the Internet! It's a real bad practice, which also explains why it's hard to find.
One way to get around such limitation is by building a web service around your database. In this web service you'll add all the functionality that you need to apply on this database, and the web service itself will keep the database itself protected. There would still be a risk that your web service gets compromised but even in that case, the attacker could never do more damage than the specific web service allows.
Such a web service can be created in PHP, although I myself have more experience with doing something similar with .NET and C# on SQL Server...
I think that you can find hosts with MySQL and PHP cheap enough that it would be easiest for you just to use one of those hosts and only use what you need.
Web Hosting Buzz has a plan for $5.95 (a month) which has unlimited databases, 400GB storage, and 500GB/Month data transfer.
A few weeks after the question was posted, Amazon announced a beta of "Amazon Relational Database Service (Amazon RDS)." It acts like MySQL 5.1.
http://aws.amazon.com/rds/
Seems pricey for what you want, but you never said you were the one who would be paying the bill.
Contract a dedicated server.
Use it only to host your MySQL database
If the server is managed, they should help you with basic MySQL problems as it is usually preinstalled. I use http://www.hostingmatters.com/
If you are just needing this for developement purposes for PHP + MySQL why not just install EasyPHP (http://www.easyphp.org/). This installs quickly and easily and I think it's great for developement.
I've had no problems installing additional PEAR extensions and such after the fact with this.
There's a free option on Heroku and paid options up from there: https://addons.heroku.com/cleardb
You can try freemysqlhosting.
http://freemysqlhosting.net/
When using WebSockets, will I need to write server code? In other words, will the JavaScript in my client application need to connect to a specialized server, or will my existing Apache server work to support this?
The server has to support web sockets. After a first handshake in HTTP, the server and the client open a socket connection. The server must be able to understand and accept this handshake.
In my last project we run quite successfully web socket connections using the last Jetty version.
27/02/2014:
Now I'm also implementing websockets under .net with XSockets.net and works like a charm, you don't even need a web server (self hosting). The WebSocket implementation of ASP.NET works also quite good.
Yes,you need to write server code.
I recommend another web socket server based on php: ratchet.
And this link is benchmarking webSocket servers between ratchet and sockJS.
Complete list of client & server side codes and browsers support please check this link
Of course you need a WebSocket server. But there are many free websocket server in different language, like jWebSocket in Java and SuperWebSocket in .NET, you can use them directly.
There are some plugins currently being developed on google code for Apache...
By definition websockets like normal sockets are client-server so yes, you need a server. However there is an alternative to waiting for Apache plugins.
I am using a hosted server http://www.achex.ca. Its free and you have tutorials in javascript on how to use the server. A good start for websockets development.
The server is basically a message router and you can connect to it and use it as a meeting point for all your websocket clients.
Short Answer: Yes, You need a specialized server, Apache does not come with websockets.OR The alternative, check out www.achex.ca.
In such a situation the role of server comes when :
In HTML 5,WebSocket like a fone(2-way comm.) not walky-talky.
http protocol upgraded to websocket protocol.(wss:// from ws://)
SERVER should be able to open duplex channel and hence AGREE with duplex communication.
Please go through this link : http://www.html5rocks.com/en/tutorials/websockets/basics/
If using php please look at RATCHET.
Thanks.
The Perl Mojolicious server supports web sockets, and implementations can be only a few lines long.
Node.js has several WebSocket libraries but details of the latest, greatest, most supportive of the latest spec vary, so choose carefully.
Apache Active MQ is also worth a look, along with the stomp protocol it implements.