Weird result on max compared to order by
Hi, I did a select on a primary key.. Select max(account_id) from mytable; -- it gave me a value X I did a select with order by Select account_id from mytable order by account_id desc limit 3 -- it gave me a value of Y ( Y is the right value ) I was wondering why it didn't gave me the same value and after some time doing a select max gave me the right value Y Tia, This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: [SPAM] - MS SQL emulator for MySQL in order to support MS Project Server, Sharepoint... - Email found in subject
http://blogs.ittoolbox.com/km/sharepoint/archives/sharepoint-and-mysql-2 2051 hmm.. but I think you might have problems getting support from sharepoint's vendor... IIRC they always push to use SQL server for this.. (we know the reason why.. :) ) -Original Message- From: Jacob, Raymond A Jr [mailto:[EMAIL PROTECTED] Sent: Wednesday, February 13, 2008 7:22 PM To: mysql@lists.mysql.com Subject: [SPAM] - MS SQL emulator for MySQL in order to support MS Project Server, Sharepoint... - Email found in subject I apologize for asking this question. I am somewhat confused by Microsoft's Licensing and I personally can not justify to senior management why MS SQL should be procured instead of procuring software more urgent requirements. I had the not so bright idea that maybe a MS SQL emulator or compatibility mode existed for/in MySQL. Does such a beast exist? In particular, I wanted to use MySQL as backend database for MS Project Server and Sharepoint, and other applications that use MS SQL as their backend database. Again, I apologize for asking this question. I could not figure out the correct string to search for such software. thank you This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: [SPAM] - Re: Sun and mysql - Email found in subject
-Original Message- From: Olaf Stein [mailto:[EMAIL PROTECTED] Sent: Thursday, January 17, 2008 12:13 PM To: Peter (MySQL List); MySql Subject: [SPAM] - Re: Sun and mysql - Email found in subject You have a point. But, facebook makes NO money at this time, has about 400 employees and Microsoft estimates its values at 15 billion dollars. I simply think this is nuts. Maybe I am too old with 30, but I have never even been to facebook. It will be interesting to see if facebook, youtube and alike websites will ever generate enough earnings to cover the costs they were bought for. With a perfect business plan I bet it will. Just because 50 million people know a website, it does not mean it makes money automatically. Yes, I agree but once this 50 million visits the website and it would be a different story. Olaf On 1/17/08 11:37 AM, Peter (MySQL List) [EMAIL PROTECTED] wrote: On Thu, 17 Jan 2008 11:07:19 -0500 Olaf Stein [EMAIL PROTECTED] wrote: I am still amazed by the fact that youtube is worth 1.5 billion and MySQL AB barely 1 billion. Did they sell under price? Or does Google just have way to much many to spend/waste? On Thu, 17 Jan 2008 10:14:36 -0600 Jay Blanchard [EMAIL PROTECTED] wrote: Or that Facebook is 'worth' multiple billions when they do not really have a way to make money yet. Uh, you both have to be kidding comparing MySQL with Youtube and Facebook, right? I'm not saying the $1 billion for MySQL was the right price, I believe it was a bargain for Sun but you are comparing apples and oranges. Go out on the street and ask people if they ever heard of these three. I bet you a few people will know MySQL, a lot will know Facebook and everybody will know Youtube. Youtube and Facebook are websites, visited by millions of people every day. That's what makes it it's value, future and present advertisements. YouTube was even used by CNN for the Republican and Democratic debates. Did you ever hear of MySQL on TV, anywhere? - Confidentiality Notice: The following mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. The recipient is responsible to maintain the confidentiality of this information and to use the information only for authorized purposes. If you are not the intended recipient (or authorized to receive information for the intended recipient), you are hereby notified that any review, use, disclosure, distribution, copying, printing, or action taken in reliance on the contents of this e-mail is strictly prohibited. If you have received this communication in error, please notify us immediately by reply e-mail and destroy all copies of the original message. Thank you. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:
RE: [SPAM] - Re: OT: Sun to buy Mysql - Email found in subject
Big fish eats the small fish.. :) Will this bring good things to MySQL? -Original Message- From: John Meyer [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 16, 2008 8:58 AM To: Brett Harvey; mysql@lists.mysql.com Subject: [SPAM] - Re: OT: Sun to buy Mysql - Email found in subject Brett Harvey wrote: http://www.reuters.com/article/mergersNews/idUSWNAS661820080116 No offense, but this is definitely not off topic when it comes to MySQL -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: [SPAM] - Re: [SPAM] - Re: OT: Sun to buy Mysql - Email found in subject - Email found in subject
Oracle and Sun has a tight relationship right? Wouldn't there be a conflict of interest? -Original Message- From: Sebastian Mendel [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 16, 2008 10:03 AM To: [EMAIL PROTECTED] Cc: Jerome O. Macaranas; mysql@lists.mysql.com Subject: [SPAM] - Re: [SPAM] - Re: OT: Sun to buy Mysql - Email found in subject - Email found in subject Richard Heyes schrieb: Will this bring good things to MySQL? $800,000,000 tends to bring good things. Hopefully. :-) ??? why, this payment goes to current owners and investors, not to MySQL itself ... but anyway, using Suns structures and power will help of course ... -- Sebastian This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: [SPAM] - Re: [SPAM] - Re: OT: Sun to buy Mysql - Email found in subject - Email found in subject
I was lurking on Sun's website.. they are also carrying PostgreSQL in their line of products.. Great!! -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 16, 2008 10:07 AM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Cc: mysql@lists.mysql.com Subject: RE: [SPAM] - Re: [SPAM] - Re: OT: Sun to buy Mysql - Email found in subject - Email found in subject Oracle and Sun has a tight relationship right? Wouldn't there be a conflict of interest? -Original Message- From: Sebastian Mendel [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 16, 2008 10:03 AM To: [EMAIL PROTECTED] Cc: Jerome O. Macaranas; mysql@lists.mysql.com Subject: [SPAM] - Re: [SPAM] - Re: OT: Sun to buy Mysql - Email found in subject - Email found in subject Richard Heyes schrieb: Will this bring good things to MySQL? $800,000,000 tends to bring good things. Hopefully. :-) ??? why, this payment goes to current owners and investors, not to MySQL itself ... but anyway, using Suns structures and power will help of course ... -- Sebastian This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Unable to restart after crash
Or maybe the pid is still existing? -Original Message- From: Ross Crawford [mailto:[EMAIL PROTECTED] Sent: Saturday, January 12, 2008 5:13 PM To: mysql@lists.mysql.com Subject: Unable to restart after crash Hi, My mysql server crashed last night, and when it rebooted, was unable to restart. Here is the error log: Jan 13 00:12:54 localhost mysqld_safe[1324]: started Jan 13 00:12:55 localhost mysqld[1327]: 080113 0:12:55 InnoDB: Database was not shut down normally! Jan 13 00:12:55 localhost mysqld[1327]: InnoDB: Starting crash recovery. Jan 13 00:12:55 localhost mysqld[1327]: InnoDB: Reading tablespace information from the .ibd files... Jan 13 00:12:55 localhost mysqld[1327]: InnoDB: Restoring possible half-written data pages from the doublewrite Jan 13 00:12:55 localhost mysqld[1327]: InnoDB: buffer... Jan 13 00:12:56 localhost mysqld[1327]: 080113 0:12:56 InnoDB: Starting log scan based on checkpoint at Jan 13 00:12:56 localhost mysqld[1327]: InnoDB: log sequence number 0 111349. Jan 13 00:12:56 localhost mysqld[1327]: InnoDB: Doing recovery: scanned up to log sequence number 0 111349 Jan 13 00:12:56 localhost mysqld[1327]: InnoDB: Last MySQL binlog file position 0 3587, file name /var/log/mysql/mysql-bin.000489 Jan 13 00:12:56 localhost mysqld[1327]: 080113 0:12:56 InnoDB: Started; log sequence number 0 111349 Jan 13 00:12:56 localhost mysqld[1327]: 080113 0:12:56 [Note] Recovering after a crash using /var/log/mysql/mysql-bin Jan 13 00:12:56 localhost mysqld[1327]: 080113 0:12:56 [Note] Starting crash recovery... Jan 13 00:12:56 localhost mysqld[1327]: 080113 0:12:56 [Note] Crash recovery finished. Jan 13 00:12:57 localhost mysqld[1327]: 080113 0:12:57 [ERROR] Can't start server: Bind on TCP/IP port: Cannot assign requested address Jan 13 00:12:57 localhost mysqld[1327]: 080113 0:12:57 [ERROR] Do you already have another mysqld server running on port: 3306 ? Jan 13 00:12:57 localhost mysqld[1327]: 080113 0:12:57 [ERROR] Aborting Jan 13 00:12:57 localhost mysqld[1327]: Jan 13 00:12:57 localhost mysqld[1327]: 080113 0:12:57 InnoDB: Starting shutdown... Jan 13 00:12:59 localhost mysqld[1327]: 080113 0:12:59 InnoDB: Shutdown completed; log sequence number 0 111349 Jan 13 00:12:59 localhost mysqld[1327]: 080113 0:12:59 [Note] /usr/sbin/mysqld: Shutdown complete Jan 13 00:12:59 localhost mysqld[1327]: Jan 13 00:12:59 localhost mysqld_safe[1374]: ended And since then I am unable to start it. mysqld_safe aborts with: Starting mysqld daemon with databases from /var/lib/mysql mysqld_safe[3150]: started STOPPING server from pid file /var/run/mysqld/mysqld.pid mysqld_safe[3164]: ended And error file: Jan 13 06:03:06 localhost mysqld_safe[1318]: started Jan 13 06:03:08 localhost mysqld[1321]: 080113 6:03:08 InnoDB: Started; log sequence number 0 111349 Jan 13 06:03:08 localhost mysqld[1321]: 080113 6:03:08 [ERROR] Can't start server: Bind on TCP/IP port: Cannot assign requested address Jan 13 06:03:08 localhost mysqld[1321]: 080113 6:03:08 [ERROR] Do you already have another mysqld server running on port: 3306 ? Jan 13 06:03:08 localhost mysqld[1321]: 080113 6:03:08 [ERROR] Aborting Jan 13 06:03:08 localhost mysqld[1321]: Jan 13 06:03:08 localhost mysqld[1321]: 080113 6:03:08 InnoDB: Starting shutdown... Jan 13 06:03:11 localhost mysqld[1321]: 080113 6:03:11 InnoDB: Shutdown completed; log sequence number 0 111349 Jan 13 06:03:11 localhost mysqld[1321]: 080113 6:03:11 [Note] /usr/sbin/mysqld: Shutdown complete Jan 13 06:03:11 localhost mysqld[1321]: Jan 13 06:03:11 localhost mysqld_safe[1368]: ended Nothing is running on port 3306, telnet gets connection refused. No mysql processes are running. Does anyone have any ideas what might be wrong? Thanks ROSCO -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is
RE: Securing the Data
You can limit access to tables in a database using a specific login.. Read on GRANT -Original Message- From: Sujatha S [mailto:[EMAIL PROTECTED] Sent: Thursday, January 10, 2008 3:06 PM To: mysql@lists.mysql.com Subject: Securing the Data Hello, Is it possible to encrypt data on mysql database. I have the following requirement. We have a development team, which will be involved in payroll system. They will update the salary information of all the employees in mysql database. Due to this the members in development team have the rights to access the payroll table, were they can see the salary of others employee and many more information of employee. My question is , do we have any secure method to protect the data. Like storing the data on encrypted format in mysql database. Also, do we have any other possible methods to restrict the development team from access on the data's Regards, Suja This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Securing the Data
Hmmm most likely developers will have a way to get that pass_str since they are the Developers.. :) -Original Message- From: Jimmy Guerrero [mailto:[EMAIL PROTECTED] Sent: Thursday, January 10, 2008 3:35 PM To: Sujatha S Cc: Jerome O. Macaranas; mysql@lists.mysql.com Subject: Re: Securing the Data Hello, http://dev.mysql.com/doc/refman/5.0/en/encryption-functions.html discusses some available encrypt and decrypt functions native to MySQL. -- Jimmy Sujatha S wrote: Thanks for the update. Is there any method to encrypt the data on mysql? Regards, Suja On 1/11/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: You can limit access to tables in a database using a specific login.. Read on GRANT -Original Message- From: Sujatha S [mailto:[EMAIL PROTECTED] Sent: Thursday, January 10, 2008 3:06 PM To: mysql@lists.mysql.com Subject: Securing the Data Hello, Is it possible to encrypt data on mysql database. I have the following requirement. We have a development team, which will be involved in payroll system. They will update the salary information of all the employees in mysql database. Due to this the members in development team have the rights to access the payroll table, were they can see the salary of others employee and many more information of employee. My question is , do we have any secure method to protect the data. Like storing the data on encrypted format in mysql database. Also, do we have any other possible methods to restrict the development team from access on the data's Regards, Suja This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Red Hat EL and Datbase Setup
Try reading on RAID1+0, though it's a bit expensive in implementation but its great on READ WRITE.. Basing on the current stable version there is no built in table partitioning.. you can do it in an application level.. -Original Message- From: Jason Vinar [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 09, 2008 10:17 AM To: mysql@lists.mysql.com Subject: Red Hat EL and Datbase Setup Hi, I am looking for a little advice in setting up Red Hat and MySQL for a large database (at least I consider it to be large). My database will contain 2 large tables that are updated daily. The first table currenly has 19 million records and ~70 columns largely made up of varchar(20), char(5) and integers. It has a natural primary key and a composite index on 3 of the character columns. The second table currently has 400 million records and ~30 columns again made up of varchar(20), char(5) and integers. This table's primary key is defined using 2 columns and also has a composite index on the same 3 columns as the first table. Lastly, I will frequently join the two tables in my queries. My system has 4gb ram, 500 gb hard drive (result of a RAID 5 configuration) and 2 dual core Intel 64 bit procs. I have chosen to use Red Hat EL5. Here are the questions I have to help optimize the performance: * Should I continue with the RAID 5? I am not too concerned of recovery. I am more concerned about I/O performance. * Is there a hard drive partition scheme that would help the performance (separate the large db schema /var/lib/mysql/schema_name)? * Should I partition the tables? There is a natural partition for the 400m table by date; there is not a natural partition for the other. Should I make one up? * Are there specific additions to the /etc/my.cnf that I should add to maximize the systems capabilities? * Please let me know of other things I should consider. Thanks in advance, Jason This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: High Traffic Sites
Hi, There are a lot of clustering you techniques you can use. Read on livejournal attack on this problem. You need to start from the schema poorly constructed schema will kill your hardware. Go to Mysql Site search for whitepapers and friendster (I'm not saying it the best implementation but it will give you an idea.) Hth, -Original Message- From: Erich C. Beyrent [mailto:[EMAIL PROTECTED] Sent: Monday, October 22, 2007 10:10 AM To: MySQL General Subject: Re: High Traffic Sites Craig, Thank you for your insight. Having never worked with clustering solutions, what kinds of headaches might one see with that solution? Does anyone know of any white papers that might shed some light into the pros and cons of each solution? -Erich- Craig Huffstetler wrote: I highly recommend you hire a consultant or a freelance DBA to try to work this out. You are talking about something pretty extensive. I would recommend replication across quite a few high-end servers (all 64 bit of course with plenty of RAM). Clustering can be a pretty big headache. A lot of this is going to depend on what you see the most of (reads/writes? etc.). You are correct in your thoughts, though, about having multiple database servers A project like this will most likely require much more initial information and evaluations to find out a solution suitable to your needs. On 10/22/07, Erich C. Beyrent [EMAIL PROTECTED] wrote: A colleague and I are having a discussion about the best way to handle high traffic sites. For example, take a social networking site with 1 million users. I think it would be better to have multiple web servers with multiple database servers in a master/slave scenario with replication. My colleague supports the idea of clustering, with MySQL running on the same box as the web server. From a MySQL standpoint, are there any best practices for building high traffic sites with a MySQL back end? Neither my colleague nor I are DBA's, nor are we sys admin experts. Any thoughts are most welcome. -Erich- -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] This message and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom it is addressed. It may contain sensitive and private proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you are not the intended recipient, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. FXDirectDealer, LLC reserves the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorized to state them. Unless otherwise stated, any pricing information given in this message is indicative only, is subject to change and does not constitute an offer to deal at any price quoted. Any reference to the terms of executed transactions should be treated as preliminary only and subject to our formal confirmation. FXDirectDealer, LLC is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
