Search Results

Search found 23821 results on 953 pages for 'mysql group by'.

Page 83/953 | < Previous Page | 79 80 81 82 83 84 85 86 87 88 89 90  | Next Page >

• Providing high availability and failover using MySQL on EC2

  - by crb

  I would like to have a highly-available MySQL system, with automatic failover, running on Amazon EC2 instances. The standard approach to solving this is problem Heartbeat + DRBD, but I've found a lot of posts suggesting DRBD doesn't work on EC2, though none saying exactly why. Obviously, a serial heartbeat or distinct network is out of the question in the virtualised environment. It would also be good to have the different servers be in different availability zones, but we're getting into a much harder problem there. What are peoples' opinion on having a high uptime solution in "the cloud"? Note: This question was asked before RDS with multi-AZ was announced, which is the nice automatic answer for today's modern IT professional. :)

  Read the article

• How to access remotly to a mysql server?

  - by ÉricP

  Hi, I'm trying to access my remote mysql server from my own computer. I uncommented: bind-address = 80.10.65.45 I added 80.10.65.45 as a server in privilege root 80.10.65.45 yes ALL PRIVILEGES yes I'm using Sequel Pro on MacosX to connect via SSH here is the debug log: debug1: Authentication succeeded (password). debug1: Local connections to LOCALHOST:58517 forwarded to remote address 127.0.0.1:3306 debug1: Local forwarding listening on ::1 port 58517. debug1: channel 0: new [port listener] debug1: Local forwarding listening on 127.0.0.1 port 58517. debug1: channel 1: new [port listener] debug1: Entering interactive session. debug1: Connection to port 58517 forwarding to 127.0.0.1 port 3306 requested. debug1: channel 2: new [direct-tcpip] channel 2: open failed: connect failed: Connection refused debug1: channel 2: free: direct-tcpip: listening port 58517 for 127.0.0.1 port 3306, connect from 127.0.0.1 port 58519, nchannels 3

  Read the article

• MySQL dump, output each table row on a new line whilst using --extended-insert

  - by soopadoubled

  I'm having an issue, where for ease of use, I'd like to be able to format a command line MySQL dump so that each row of a given table is on a new line when using the --extended-insert option. Usually when using --extended-insert, every row of a given table is outputted on one line, and as far as I am aware there's no way to change this, other than post-processing the dump with perl or such like. The format I'm looking for is: -- -- Dumping data for table `ww_tbCountry` -- INSERT INTO `ww_tbCountry` (`iCountryId_PK`, `vCountryName`, `vShortName`, `iSortFlag`, `fTax`, `vCountryCode`, `vSageTaxCode`) VALUES (22, 'Albania', 'AL', 1, 0.00, '8', 'T9'), (33, 'Austria', 'AT', 1, 15.00, '40', 'T9'), (40, 'Belarus', 'BY', 1, 0.00, '112', 'T9'), (41, 'Belgium', 'BE', 1, 15.00, '56', 'T9'), (51, 'Bulgaria', 'BG', 1, 15.00, '100', 'T9' However, when I dump a database using Phpmyadmin, using --extended-insert, each row is dumped on a new line (as shown by the example above). I've gone through Phpmyadmin and can't find any documentation that would explain this. Is anyone able to shed any light on this? Thanks in advance, Ian

  Read the article

• MySQL service was shut down - why?

  - by Tony

  I have installed MySQL Server 5.5 on the WIndows Server 2008 R2. In the services.msc I see that it has the Startup Type option set to Automatic. Everything was fine until today when that service was somehow turned off, but I did not do this. So, 1) what can makes that service to be shutted down ? 2) Maybe is there any error log ? 3) Is it possible to set that service to be automatically turned on if that situation will come again ?

  Read the article

• MySQL com_select?

  - by symcbean

  I'm looking to tune my query cache a bit. According to 7.6.3.4. Query Cache Status and Maintenance in the manual: The Com_select value is given by this formula: Qcache_inserts + Qcache_not_cached + queries with errors found during the column-privileges check However in 5.1.5. Server Status Variables it suggests that this is maintained by the DBMS. Having said that mysql> show status like 'Com_select%'; Always returns a value of 1 - and I'm pretty sure I've run more than one non-cached select query on my database since it started. It looks as if other people are similarly confused. Is this status variable redundant? Which bit of the manual is wrong? TIA

  Read the article

• MySQL/Apache: Replace spaces with underscores only in certain URLs

  - by javipas

  I'm having a problem with some images I'm using on my WordPress blog. After a migration I renamed every image replacing spaces with underscores, so HIDDEN_264_4062_FOTO_IDF los MID.jpg was renamed to HIDDEN_264_4062_FOTO_IDF_los_MID.jpg But althought the trick was necessary and worked for most of the posts, some of them try to find the old image, with spaces: This is not found http://www.example.com/files/HIDDEN_264_4062_FOTO_IDF%20los%20MID.jpg and this should be the right URL http://www.example.com/files/HIDDEN_264_4062_FOTO_IDF_los_MID.jpg Careful, though, 'cause the "%20" is only shown on the browser: the text on the database shows spaces, not "%20". I'd like to know if maybe I could make a SQL query in my WordPress MySQL database that replaces spaces in .jpg files with underscores. The path of the images is always the same, so the rule should transform this: /files/HIDDEN_264_4062_FOTO_IDF los MID.jpg /files/HIDDEN_264_4062_FOTO_IDF_los_MID.jpg the "/files/HIDDEN_264_" part is always the same, but the rest varies. Is some way to perform this? Maybe a rewrite rule on Apache (our current webserver)?

  Read the article

• How to take mysql replication backup

  - by user53864

  I have a MySQL master-master replication setup with a slave for each master(only one master used for read/writes at a time) on Ubuntu server. Wondering what would be the best way to schedule backup of replication databases with mysqldump. I have following clarifications because of which could not proceed further. Scheduling mysqldump backup on masters safe for replication? Connecting masters with GUI applications(workbench) for database manipulations(read, writes.. by developers) is safe? Any inputs are welcome.

  Read the article

• mysql error code 13 on windows xampp caused by lower case table names = 0

  - by user127379

  I can import an sql (from test linux server mysql) file if the lower case setting is removed. But then the table names are lower case and the web site doesn't work. Originally it was working (my.ini with the lower case settings), I then exported to a linux server, it was working there. Now importing back to my windows (xampp setup) fails. After wild goose chase looking at disks and permissions, I found that if I remove the lower_case_table_names=0, the import works! But I need the case sensitive command so that I can deploy on the linux server.

  Read the article

• High Lock Wait ratio in MySQL

  - by FunkyChicken

  on my site I log every pageview (date,ip,referrer,page,etc) in a simple mysql table. This table gets very little selects (3 per minute), but a lot of inserts. (about 100 per second) Today I changed this table from an InnoDB table to a MEMORY table, this made sense to me to prevent unnecessary hard disk IO. I also prune this table once per minute, to make sure it never get's too big. -- Performance wise, things are running fine. But I noticed that while running tuning-primer, that my Current Lock Wait ratio is quite high. Current Lock Wait ratio = 1 : 561 My question: Should I worry about this Lock Wait Ratio? And is there something I can change in my my.cnf to improve things so that the lock wait ratio isn't so high?

  Read the article

• Backup XAMPP (Htdocs & MySQL)

  - by Max

  I have a development server, but would like to backup everything at least daily to a remote location. I would like to backup the htdocs folder and the MySQL servers. But if possible also the settings of the server and anything else relevant. At the moment I am using DropBox for the htdocs, but this is not ideal. I have looked into Git, DropBox simple copy paste on a daily basis. I was wondering what any advice would be. For example how hard would it be to set it up as a cloud based system? Any and all advice is greatly appreciated.

  Read the article

• PHP and MySQL related Problem

  - by Tareq

  Hi friends, I have a local LAN to my office. Recently I designed a New Software system using PHP, MySQL for my office. My boss wants to see the reports from online. My problem is, my network connection is often failed to my office. But I have to input all time. So, now I want to use two instances of my software. One will be using the LAN and one will be uploaded to my server. My question is, how can I easily keep the both databases up-to-date always? Please help me with this issue. If you want more info please feel free to ask me.

  Read the article

• Adding a MySQL StoredProcedure causes not responding state

  - by Omie

  I'm on Windows 7 ultimate 32bit + xampp 1.7.2 [MySQL v5.1.37] This is my stored procedure : delimiter // CREATE PROCEDURE updatePoints(IN parentid INT(5),IN userid INT(5)) DECLARE chpoints INT(5); BEGIN SELECT points INTO chpoints FROM quiz_challenges WHERE id = parentid; UPDATE quiz_users SET points = points + chpoints WHERE forumid=userid; END; // delimiter ; At first it was showing error 1064 while creating stored procedure. I added delimiters part and when I tried running the query from phpmyadmin, Firefox went into not responding state. After that I started Internet Explorer and tried opening my pages which use the same database, it worked fine. However, I tried opening phpmyadmin and IE went into not responding state as well. I restarted both servers. Later restarted PC. Tried again but its same behavior. So whats wrong with this tiny little code ? Am I missing something which might be causing infinite loop ? Thanks

  Read the article

• table alias (or 'symlink') in mysql

  - by andreash

  Hi there, in MySQL5.1, is there a way to make one table accessible by two different names? I'm thinking about somethink like a symlink on linux filesystems. I know theres the CREATE VIEW myview AS SELECT * FrOM mytable thing, but I don't only need to SELECT from both names, but also delete etc ... You might ask why I want to do this? It's about getting a commercial, closed-source app to work, which is crappily programmed (usually, the table names are all lower-case, but occasionally, they use capitalized names for the same table ...). Oh, that would be another idea: Is there a way to tell MySQL not to care about capitalization of table names (like on Windows filesystems?)? that would also do the trick ... Thanks for your insight! A.

  Read the article

• AWS RDS Mysql with benstalk Hibernate app: Character encoding issue

  - by TeraTon

  I'm running a webapp from amazon rds with tomcat 7 and spring, which uses hibernate as the persistence layer. The application and utf-8 encoding work properly on localhost, but for some reason when I deploy to amazon, the UTF-8 encoding breaks. I use mysql 5.5.27 on amazon rds and the table that we wish to update has collation set to utf8 - utf8_unicode_ci And in hibernate I have set: < prop key="hibernate.connection.charSet"UTF-8 UTF-8 characters get replaced by ??? and this is of course especially bad for passwords and usernames + email as it basically kills them. Anyone else encountered character encoding breaking when deploying to amazon?

  Read the article

• MySQL 5.0 Unavailable but still working every monday morning

  - by user1578031

  So I have a MySQL server with 4-5 databases and every monday morning, I can't login with PHPmyAdmin or the cmd line tools or options and the funny thing is the connection can be made later in the day around 3:30 - 4PM. I can't replicate the issues on any dev boxes and cant upgrade to 5.5 for a number of reasons. I want to try and poll the sql databases with a simple script and just connect to it and then disconnect. I'm not very good with SQL but would like to know if anyone could help with a script which I can automate to run sunday every 30mins or so, to see if the issue can be stopped by the database being connected to over the very quiet period of sunday... After this im out of ideas and have to wait for the HW/SW refresh to get 5.5 on there...

  Read the article

• Howto dianostic problem in MySQL Cluster?

  - by maj

  Hi, I have set up a MySQL cluster following exactly this howto. Page 1 is completed, but the problem I can see the nodes in ndb_mgm for a little while, and then I get ndb_mgm> show; Cluster Configuration --------------------- [ndbd(NDB)] 2 node(s) id=2 (not connected, accepting connect from 192.168.0.101) id=3 (not connected, accepting connect from 192.168.0.102) [ndb_mgmd(MGM)] 1 node(s) id=1 @192.168.0.103 (Version: 5.1.45) [mysqld(API)] 2 node(s) id=4 (not connected, accepting connect from any host) id=5 (not connected, accepting connect from any host) ndb_mgm> So the questions is; How do I diagnostic this problem? Does there exist log files I can look in?

  Read the article

• Issue with aborted MySQL connections (error code: 4)

  - by arikfr

  Some of the connections between my application server (Ubuntu, Apache, PHP) and my DB server (Ubuntu, MySQL) are failing with error code 4. According to the documentation error code 4 is: OS error code 4: Interrupted system call At first I thought that maybe the issue is that the DB server has too many connections and fails because there are too much open files. But it seems not to be the case because: Too many open files has different error code (24). I've checked and during peak time the server had 497 files open (checked using lsof command) while the maximum is 1024. The TCP settings were already checked (see prior question). Any ideas what this can be or what should I check?

  Read the article

• Upgrading php, mysql, and apache

  - by Kevin

  I have been looking around and have not found a good answer to my question. I currently have php 5.3.3 installed via yum on my centos 6.3 server. I need to upgrade to php 5.10 or later. It is my understanding that you need to find the correct mysql and apache packages that fit with the php install. Can someone please point me in the direction of a an update guide? Btw I am not looking for "yum update httpd php5" this gets me the old 5.3.3 version. Thanks, Kevin.

  Read the article

• MySQL Cluster transaction isolation level - READ_COMMITTED

  - by Doori Bar

  I'm learning by mostly reading the documentation. Unfortunately, http://dev.mysql.com/doc/refman/5.1/en/set-transaction.html#isolevel_read-committed doesn't say anything, while it says everything. Confused? Me too. ndb engine supports only "READ_COMMITTED" transaction isolation level. A. It starts by saying "sets and reads its own fresh snapshot", which I translate to: The transaction is having a separated 'zone' which whatever it stores there - is what it reads back. B. While out-side of the transaction, the old-values are unlocked. C. It continues with: "for locking reads" sentence - No idea what it means. Question: they claim only READ_COMMITTED transaction isolation level is supported, but while handling a BLOB or a TEXT, they say the isolation is now "locked for reading" too. So is it a contradiction? can a transaction LOCK for reading just as well while handling something other than BLOB/TEXT? (such as integers)

  Read the article

• Regular expression in mySQL [migrated]

  - by Rayne

  I have a mysql table that has 2 columns - Column 1 contains a string value, and Column 2 contains the number of times that string value occurred. I'm trying to find the string abc.X.def, where the beginning of the string is "abc.", followed by one or more characters, then the string ".def". There could be more characters following ".def". How can I find such strings, then add the occurrence of such strings and display the results? For example, if I have abc.111.def23 1 abc.111.def 2 abc.22.def444 1 abc.111.def 1 Then I will get abc.111.def23 1 abc.111.def 3 abc.22.def444 1 Thank you.

  Read the article

• Connect to my virtualbox mysql server

  - by WebweaverD

  I wonder if someone here could help me, this is my set up: I am on a windows 7 machine running a ubuntu virtualbox as my local web server and database server (mysql). I have just got hold of a copy of Komodo which i am running on my windows machine which I would like to hook up to my database. The fields it needs are hostname, port, socket, username and password. I know the username/password but am unsure how to find out what to put for the other fields. The ubuntu vb has an ip of 192.168.0.10, which is in my hosts file as http://swishprint.dev I hope I have asked this in the right place, any help much appreciated.

  Read the article

• MySQL Procedure causing Dead Lock

  - by Phanindra

  I am using MySQL server 5.1.45. And I am having a procedure with huge business logic. With less number of invocation of this procedure, my application is working fine, but when the number of invocations are getting increased this procedure is throwing Lock wait timeout exception. My Question is will Procedure creates temporary tables dynamically..? As in my procedure I am using Truncate statement which may cause to release all transactions. I am not DBA, please help me out of this.

  Read the article

• phpmyadmin or other mysql gui - edit whole table from one screen

  - by lorem

  Let's say I have table in database. I'd like to be able to view all data from this table and be able to edit every field from single screen. I tried to do this in phpmyadmin but I'm not sure how... I can see all data but I have to click edit on single field and then I'm sent to next screen, can't really edit everything at once. How do I do this in phpmyadmin or other mysql gui? I'm on Linux, my server too. I'd like each field in table to be editable text field - maybe this will show better what I'm searching for.

  Read the article

• Specific apache + mysql settings for a light-weight site

  - by Good Person

  I have a small website with a Joomla and a Moodle set up. It seems that both of these are very slow. The server (CentOS release 5.5 (Final)) is a virtual dedicated server with about 2GB of ram. I don't expect to ever get more than 10-15 people on at the same time (and if that is high) What settings could I change in either apache, mysql, or even the OS to increase the performance of my site? I'm not concerned about running out of resources if I get too many visitors. If you need more specific data leave a comment and I'll edit the question.

  Read the article

• Mysql process goes over 100% of CPU usage

  - by Temnovit

  Hello! I'm experiencing some problems with my LAMP server. Recently, everything became very slow, even though visitor count on my websites didn't change to much. When I run top command, it sais that mysql process has taken over 150-200% of CPU. How's that possible, I always thought that 100% is a maximum? I'm running Ubuntu 9.04 server edition with 1,5 GB RAM my.cnf settings: key_buffer = 64M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 myisam-recover = BACKUP max_connections = 200 table_cache = 512 table_definition_cache = 512 thread_concurrency = 2 read_buffer_size = 1M sort_buffer_size = 4M join_buffer_size = 1M query_cache_limit = 1M # the maximum size of individual query results query_cache_size = 128M Here is the output of MySQLTuner: The top command: What could be the cause of this problem? Can I make changes to my my.cnf to prevent server from hanging?

  Read the article

< Previous Page | 79 80 81 82 83 84 85 86 87 88 89 90  | Next Page >