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  • problem with select boxes - second options based on first selection

    - by Charles Marsh
    Hello All, I just posted a question about opening in a new window but if I use window.location it doesn't work?? is there a problem with my javascript? <script type="text/javascript"> function setOptions(chosen){ var selbox = document.formName.table; selbox.options.length = 0; if (chosen == " ") { selbox.options[selbox.options.length] = new Option('No diploma selected',' '); } if (chosen == "1") { selbox.options[selbox.options.length] = new Option('first choice - option one','http://www.pitman-training.com'); selbox.options[selbox.options.length] = new Option('first choice - option two','onetwo'); } if (chosen == "2") { selbox.options[selbox.options.length] = new Option('second choice - option one','twoone'); selbox.options[selbox.options.length] = new Option('second choice - option two','twotwo'); selbox.options[selbox.options.length] = new Option('second choice - option three','twothree'); selbox.options[selbox.options.length] = new Option('second choice - option four','twofour'); } if (chosen == "3") { selbox.options[selbox.options.length] = new Option('third choice - option one','threeone'); selbox.options[selbox.options.length] = new Option('third choice - option two','threetwo'); } } </script> Its a little messy I know... <form name="formName" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>"> <select name="optone" size="1" onchange="setOptions(document.formName.optone.options[document.formName.optone.selectedIndex].value);"> <option value=" " selected="selected">Please select a diploma</option> <option value="1">First Choice</option> <option value="2">Second Choice</option> <option value="3">Third Choice</option> </select> <select name="table" size="1" > <option value=" " selected="selected">No diploma selected</option> </select> <input type="submit" onclick="ob=this.form.table;window.location(ob.options[ob.selectedIndex].value)"/> </form> to be honest I'm not happy with this anyway I want a way to hide the Submit button until the second selected box has been selected...but I'm no java expert! Can anyone point me in the right direction?

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  • Benchmarking MySQL on win7

    - by Patrick
    I've setup a nginx server running php 5.3.6 and mysql 5.5.1.3. My computer is an AMD quadcore 9650, 4gb ram, 500gb 7200rpm HD. I ran the PHP MySQL Benchmark Tool v. 0.1, and got the following results: Testing a(n) MYISAM table using 100000 rows. Successfully created database speedtestdb Sucessfully created table speedtesttable Table Type Verified: MYISAM .. Done. 100000 inserts in 19.73628 seconds or 5067 inserts per second. Done. 100000 row reads in 0.2801 seconds or 357015 row reads per second. Done. 100000 updates in 4.03876 seconds or 24760 updates per second. I'm wondering where this stands as far as performance goes, and what are some steps I can take if any to improve on this. I'm not trying to make anything fantastic, just getting a feel for how to best optimize a web server in this configuration.

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  • MySql Replication with a star topology

    - by Riotopsys
    My company currently operates in 3 separate locations connected by slow vpn links. Each site hosts a dedicated MySql server. I need to aggregate the data from all three of them onto a single server for corporate reporting. The powers that be have stated I cannot use circular replication or federated tables. Is there a third party tool for MySql that can replicate from multiple masters? Basically the diagram would be a daisy with the reporting server slave at center with multiple replication connections coming in from the master sites on the petals.

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  • Database cluster... without Master/Slave?

    - by RadiantHex
    Hi there! I'm wondering if it is possible to have a set of SQLdb servers to which data is written and have them replicate, avoiding conflicting information. I imagine that a Master/Slave structure would be mandatory, I would like to know if a system where servers have no hierarchy could support replication. Currently I'm using MySQL, but I would be happy to move to another database if needed. Any ideas? :)

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  • MySQL per-database replication?

    - by LucasBr
    So, my problem is interesting: we want to migrate from one server to another. We made a master-slave replication, but my boss came with the idea to make migration one database at a time. So he asked me to setup at the new server another MySQL instance, let the slave almost as-is and make the new instance be the new master incrementally, one database at a time. Is it possible, that is, can I transfer the database 'x' from old master to new master and just tell slave to synchronize 'x' at the new master from now on? I've read at this old thread ( Mysql Replication - are per-database threads possible? ) that this was not possible at that time. This can be done now? Thanks! Lucas Bracher.

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  • Recovering/Rebuilding MySQL .FRM, .MY* files from IBDATA1

    - by Synetech
    I recently had an incident in which several MySQL files were wiped out (mostly from WordPress, but also a few of MySQL’s own files). The IBDATA1 file is unaffected, but several .frm are gone as are a few .myi and .myd files. So now I need to find out if there is a way to rebuild the missing files from IBDATA1. I tried Googling it, assuming that such an issue has come up before, and indeed there were numerous search results (including this question), but all of the ones I looked at were the opposite, about recovering from .frm and .my* files or somehow required these files. Is there a way to rebuild these files? I know I have a relatively recent backup (a .SQL file) if there isn’t, but I’m hoping that these are the kind of files that are rebuilt if missing or outdated.

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  • MYSQL backup and restore

    - by Codezy
    I am having trouble getting mysql backups to run properly when their are views in the database. I think this might have something to do with needing a placeholder object for it. In any event I run this command: mysqldump -u myuser -pmypassword mydatabase | mysql -u myuser -pmypassword -C mydatabase_Beta The user has full privileges and I get this: View mydatabase_beta.yadayada references invalid tables or columns or functions or definer/invoker or view lack rights to use them. How can I back it up so that it restores all of my database properly? In the example I am restoring it to a different name but I do need to be able to restore a working copy. I think it is probably an additional mysqldump parameter or maybe hot copy would work better. Thoughts?

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  • MySQL is killing the server IO.

    - by OneOfOne
    I manage a fairly large/busy vBulletin forums (~2-3k requests per second, running on gigenet cloud), the database is ~ 10 GB (~9 milion posts, ~60 queries per second), lately MySQL have been grinding the disk like there's no tomorrow according to iotop and slowing the site. The last idea I can think of is using replication, but I'm not sure how much that would help and worried about database sync. I'm out of ideas, any tips on how to improve the situation would be highly appreciated. Specs : Debian Lenny 64bit ~12Ghz (6 cores) CPU, 7520gb RAM, 160gb disk. Kernel : 2.6.32-4-amd64 mysqld Ver 5.1.54-0.dotdeb.0 for debian-linux-gnu on x86_64 ((Debian)) Other software: vBulletin 3.8.4 memcached 1.2.2 PHP 5.3.5-0.dotdeb.0 (fpm-fcgi) (built: Jan 7 2011 00:07:27) lighttpd/1.4.28 (ssl) - a light and fast webserver PHP and vBulletin are configured to use memcached. MySQL Settings : [mysqld] key_buffer = 128M max_allowed_packet = 16M thread_cache_size = 8 myisam-recover = BACKUP max_connections = 1024 query_cache_limit = 2M query_cache_size = 128M expire_logs_days = 10 max_binlog_size = 100M key_buffer_size = 128M join_buffer_size = 8M tmp_table_size = 16M max_heap_table_size = 16M table_cache = 96

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  • Setting a time limit for a transaction in MySQL/InnoDB

    - by Trevor Burnham
    This sprang from this related question, where I wanted to know how to force two transactions to occur sequentially in a trivial case (where both are operating on only a single row). I got an answer—use SELECT ... FOR UPDATE as the first line of both transactions—but this leads to a problem: If the first transaction is never committed or rolled back, then the second transaction will be blocked indefinitely. The innodb_lock_wait_timeout variable sets the number of seconds after which the client trying to make the second transaction would be told "Sorry, try again"... but as far as I can tell, they'd be trying again until the next server reboot. So: Surely there must be a way to force a ROLLBACK if a transaction is taking forever? Must I resort to using a daemon to kill such transactions, and if so, what would such a daemon look like? If a connection is killed by wait_timeout or interactive_timeout mid-transaction, is the transaction rolled back? Is there a way to test this from the console? Clarification: innodb_lock_wait_timeout sets the number of seconds that a transaction will wait for a lock to be released before giving up; what I want is a way of forcing a lock to be released. Update: Here's a simple example that demonstrates why innodb_lock_wait_timeout is not sufficient to ensure that the second transaction is not blocked by the first: START TRANSACTION; SELECT SLEEP(55); COMMIT; With the default setting of innodb_lock_wait_timeout = 50, this transaction completes without errors after 55 seconds. And if you add an UPDATE before the SLEEP line, then initiate a second transaction from another client that tries to SELECT ... FOR UPDATE the same row, it's the second transaction that times out, not the one that fell asleep. What I'm looking for is a way to force an end to this transaction's restful slumber.

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  • installing old MySQL client libraries (libmysqlclient.so.15, libpq.so.4)

    - by Elijah Paul
    I'm attempting to install Nagios plugins on a Zimbra 8.0.2 server running CentOS 6.4, but have run into the following error when I run yum install nagios-plugins-all Error: Package: nagios-plugins-mysql-1.4.15-2.el5.x86_64 (epel) Requires: libmysqlclient.so.15()(64bit) Error: Package: nagios-plugins-pgsql-1.4.15-2.el5.x86_64 (epel) Requires: libpq.so.4()(64bit) Error: Package: nagios-plugins-mysql-1.4.15-2.el5.x86_64 (epel) Requires: libmysqlclient.so.15(libmysqlclient_15)(64bit) You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest How can I install these libraries (libmysqlclient.so.15 & libpq.so.4)? Will installing these libraries possibly break Zimbra?

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  • trouble backing up large mysql database

    - by Patrick
    I have a wordpress MU database with something like 10,000+ tables for various user's blogs. I need to upgrade wordpress MU to newest version, but want to backup the DB before hand. PHPMyAdmin fails to even load the page when i click export. Ive tried going into the server (windows) and using dos command line: mysqldump -u USERNAME -p PASSWORD> BACKUP.sql but it hangs for a minute and gives me the error: error 23: out of resources when opinging file '.\USERNAME\wp_1037_links.MYD' (Errorcode: 24) when using LOCK Tables What am i doing wrong, or should i be doing? Is PHPMyAdmin right for something this size? Is there a better way of doing this than the two methods i tried? **Note that this is not my site, so any suggestions as to the setup of the DB ill have to run by the owner. Im just here for WP related crap, this is kind of out of scope for what i was brought on to do.

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  • MySQL blocking new connections, and mysqladmin flush-hosts

    - by aidan
    I'm running MySQL on a remote server, and it suddenly started rejecting all connections: $ mysql -h 192.168.1.10 -u root -p ERROR 1129 (00000): Host 'web' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts' So, I try this flush-hosts command... $ mysqladmin flush-hosts -h 192.168.1.10 -u root -p mysqladmin: connect to server at '192.168.1.10' failed error: 'Host 'web' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'' I.e. it's blocking the very un-blocking tool it recommends. Am I doing it wrong, or will I have to resort to ssh/cpanel/physical access?

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  • MySQL and User level logging

    - by Adraen
    I have been looking at logging only certain users activity in MySQL. I found that the logging could be enabled or disabled for all users but one of the service using the db does a lot of queries and therefore I would like to only log specific users. Google told me that a flag can be SET to enable disable logging, however, I cannot modify the service DB connection code and asking every single user to enable logging before they do anything might not be as reliable as I want. So, do you know if there is any way to log only a set of users queries ? Thanks !

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  • Good/Better config for MySQL on an EC2 Large Instance

    - by Tim Reynolds
    I have an EC2 Large instance dedicated to MySQL. It will be serving a Joomla/Magento combo so it has a blend of InnoDB and MyISAM tables. I have only worked with MyISAM in the past and am therefore unfamiliar with the settings InnoDB uses. Experiments so far have been less than fruitful, as I keep causing the InnoDB engine to be disabled. My instance is running Ubuntu 10.04 64 bit server edition and has ~7.5G of ram. MySQL is currently using ~0.6% of that, with somewhat poor performance. I would like to configure it to use as much of the system RAM as is reasonable. Testing some settings I learned that the InnoDB logs can't collectively be larger than 4G. Would anyone be able to provide some base InnoDB and MyISAM settings to get my started. Thank you Tim

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  • Ubuntu Server Edition (Jaunty) x64 Segmentation faults in PHP mysql package

    - by Deeksy
    I've been running Jaunty with Apache2, PHP & MySQL running drupal websites as well as python 2.6 and trac on the same server. I'm getting quite a few segmentation faults and suhosin warnings on my drupal websites which don't seem to be related to the amount of RAM the server has (3GB) as the trac site is running happily without issues. The issue seems to be related to PHP accessing mysql and I'm getting suhosin warnings. Has anyone else seen this problem? Any ideas on how to fix it? Funnily enough, it's not a consistent error, as restarts tend to fix the issue temporarily.

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  • mysql remote connection [closed]

    - by Fel
    I spoke with my host supporter to find what is my sql hostname. He said that the only way is add permissions in mysql remote (cpanel) to my actual ip. So the config in heidiSQL for example will be localhost userxxx passxxx But i have a dynamic ip, so i need to change the permissions every time, correct? Add the flag % probably is not a good idea, so how can I solve this problem? Why I dont have something like mysql.something.com ? Sorry, if this question is too basic.

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  • Ruby, Rails & MySQL parity between Mac Client (10.6) & XServe (10.5)

    - by Meltemi
    We're setting up a RoR setup with Development on Mac OS X Client (10.6.3) and then using a Mac OS X Server (10.5.8) for testing and eventually deployment. I'd like to get as many systems in sync on these machines as possible. Wondering if there are any pitfalls. I seem to understand what's necessary under Client but Server has some hardwired stuff that I want to make sure doesn't break...or is updated correctly. Currently installed on both machines we have: OS X Client (10.6.3): Ruby 1.8.7 Rails 2.3.5 MySQL (not installed yet) OS X Server (10.5.8): Ruby 1.8.6 Rails 2.3.5 MySQL Ver 14.12 Distrib 5.0.82 Any suggestions...Ideally from someone who's done this on Leopard Server as well but I'll listen to general tips & proceedures

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  • Mysql table Crashed during Optimize, table repair taking too long

    - by hellohellosharp
    One of my vital tables was being optimzied and MySQL crashed in the middle of it. It then said the table was corrupt. I am running repair but it is taking over an hour, I need this table up ASAP (I will even truncate it if necessary). Please help me get this solved. The table has about 54 million rows. This is a MyISAM. Any additional information needed, just ask. Here are the contents of my my.cnf: [mysqld] max_connections = 850 max_user_connections = 850 query_cache_size = 128M skip-external-locking key_buffer_size = 64M max_allowed_packet = 8M table_open_cache = 256 sort_buffer_size = 4M net_buffer_length = 16K read_buffer_size = 1M read_rnd_buffer_size = 1M myisam_sort_buffer_size = 32M innodb_file_per_table tmp_table_size = 100M max_heap_table_size = 64M thread_cache_size = 8 wait_timeout=25 interactive_timeout=25 table_cache=600 innodb_buffer_pool_size = 4G innodb_thread_concurrency = 8 innodb_flush_method = O_DIRECT # This setting allows the use of asynchronous I/O in InnoDB. # The following files track usage of this resource: # - /proc/sys/fs/aio-max-nr # - /proc/sys/fs/aio-nr # Default limit is 65536, of which a single instance of mysql uses 2661 out of the box innodb_use_native_aio = 1

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  • PHP+AJAX with MySQL - Query every 2 seconds, too many in TIME_WAIT

    - by Ryan
    I have a basic HTML file, using jQuery's ajax, that is connecting to my polling.php script every 2 seconds. The polling.php simply connections to mysql, checks for ID's newer than my hidden, stored current ID, and then echo's if there is anything new. Since the javascript is connecting every 2 seconds, I am getting thousands of connections in TIME_WAIT, just for my client. This is because my script is re-connecting to MySQL over and over again. I have tried mysql_pconnect but it didn't help any. Is there any way I can get PHP to open 1 connection, and continue to query using it? Instead of reconnecting every single time and making all these TIME_WAIT connections. Unsure what to do here to make this work properly.

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  • Munin does not show Apache/mySQL stats in web view

    - by Chris
    I'm facing a very strange Problem. I just set up Munin on a fresh Ubuntu slice with a common LAMP Stack. Everything works great, except that Munin does just not show the Apache/mySQL stats in the web view. Everything else in the web view works great, Apache works, mySQL works. I even tried calling the plugins via console: sudo munin-run apache_accesses And it works fine. AFAIK Munin log files are not telling me any problems.. My only hint: when I run munin-run without sudo it gives me a "Permission denied" - could this be the problem?

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  • MySQL Stored Procedure Parameters are NULL

    - by emmilely
    I am stumped, and was hoping someone here would have a quick and easy answer. I did a fresh install of MySQL 5.5 and am trying to pass parameters into a stored procedure. The parameter values aren't being read by the stored procedure. MySQL doesn't throw an error and processes the code with null parameters. Here is the code: DELIMITER $$ CREATE DEFINER=`root`@`%` PROCEDURE `testing`(IN parameter INTEGER) BEGIN UPDATE table_name SET valueToChange = 'Test' WHERE mainID = @parameter; END And here is the query I'm using to call it: USE database_name; CALL testing(72); Can anyone help?

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  • How can I do an "insert" statement from MS SQL -> MYSQL using linked servers

    - by bvandrunen
    Is it possible to do an "insert" statement through linked servers. I know it is possible by using MSDTC...but does this work between MS SQL and MYSQL? Any help would be greatly appreciated. As of right now...I can update and select between the 2 databases but it gives me an error when I try to run an insert statement. OLE DB provider "MSDASQL" for linked server "******" returned message "Query-based insertion or updating of BLOB values is not supported.". Msg 7343, Level 16, State 2, Line 1 The OLE DB provider "MSDASQL" for linked server "******" could not INSERT INTO table "[*********]...[******_options]". Location: memilb.cpp:1493 Expression: (*ppilb)-m_cRef == 0 SPID: 76 Process ID: 1644

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  • mysql connection is slow (5seconds)

    - by acidzombie24
    After building my webapp on a first boot i create 2 connections to mysql on debian then 1-2 (r/w) for every page after that. The connection consistently take 5.2 seconds to connect. Debian is in a VM running in my OS. Why is the connection taking this long? At times it will take < 0.1 seconds which is great but 5.2 x2-3 on every run is to much. Has anyone experience this problem? how do i solve it? note: I am using .NET to connect. Not that it matters. and its mysql v5

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  • How to config mysql-server for heavy load

    - by Rasmus
    Im in the process of setting up a new database server. I have been running a few mysql database servers before and it has been working okay. But i would like to hear the recommended setup for my server. For example, what should i set the max connection, query_cache_size, table_cache and so on. I have arround 4-600 per second: Open tables: 112 Queries per second avg: 430.386. The server i am setting it up on have the following configuration: Linux version 2.6.32-5-amd64 (Debian 2.6.32-41squeeze2) 2x Intel Xeon X3440 @ 2.53GHz 4GB Ram /, /boot, /tmp etc on Software RAID1, 2x 7200RPM SATA Data location on Software RAID0, 2x7200RPM SATA Im am going to place the mysql databases on the RAID0. Am im missing anything? Let me know! Thanks in advance, im looking forward to hearing from you :-) /Rasmus

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  • TIME column in TOP command for mysql

    - by michael
    When I run top on my database server I get that mysqld has been running for 4:00.51 and it continues to go up. I assume this means that one process with mysql has been running this long from other posts on here. Its not set to cumulative mode as best I can tell as the heading looks like it would change to CTIME if that be the case. What I'm wondering is if this is normal for a site that makes a lot of individual connections using PHP. I shouldn't have any long running processes that would hold on to a mysql connection for this long, only seconds at most. Am I incorrect to assume that this time relates to one connection/process running? I think usually I see it flash up and away on the TOP, not just stay there with this number increasing.

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