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• Windows 7 boot failure after update

  - by Jake

  Installed some windows 7 updates today, mostly just optional fixes and it installed an update to my IntelliType or IntelliPoint drivers (Keyboard & Mouse). It asked to reboot, computer gets to the windows load screen and redirects to the repair utility. Repair utility failed, it said if I recently installed a device, unplug it and try to restart. So I unplugged my keyboard and mouse, restarted. Nothing. I noticed that all the errors seemed to be Windows 7 thinking the installation was on another one of my slave drives. For example, my windows installation is on C:, but I have other drives, like G:, X:, etc... So it said "Critical Boot File G:\Windows\system32\drivers\amdxata.sys is corrupt, but why not C:\ ? So I unplugged ALL other hard drives, it still tried loading X:, even though the only one plugged in was C: I have the windows disk, but that didn't seem to help. I was thinking I need to fix my boot.ini or something simple like that was corrupt, the hard drives seem fine. I'm screwed, it's finals week.

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• MySQL works with straight php, but not in phpMyAdmin or in Drupal

  - by Marek

  I just updated from PHP 5.1 to 5.2 and both drupal and phpMyAdmin stopped being able to save information. I've checked the mysql user permissions - they look ok. I wrote some simple php to insert a row into a table, and it works, but if I try to do the same thing in phpMyAdmin, it just says "no change". phpMyAdmin will delete rows, select rows, but not insert or update them. Drupal does the same thing - it will select info from the tables ok, but not insert or update (or delete). Any ideas? I'm really starting to get desperate! Cheers, Marek

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• Is it possible to use the MMM tool without virtual IP capability?

  - by Artem

  We are on a host (Serverbeach) that does not support Virtual/floating IPs until you reserve at least a half-rack, which is just a little more than we are willing to spend per month right now. We do have 2 machines in one of their datacenters, and I am using these 2 machines right now in the Master-Master in Active-Passive Mode just like done by MMM -- http://mysql-mmm.org/. I have just set them up and I managing them manually, with manual switch on the Web frontend to tell it to connect to the correct (active) master. Is there any way to use MMM without virtual IPs? Any other comments on this setup?

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• MySQL works with straight php, but not in phpMyAdmin or in Drupal

  - by Marek

  I just updated from PHP 5.1 to 5.2 and both drupal and phpMyAdmin stopped being able to save information. I've checked the mysql user permissions - they look ok. I wrote some simple php to insert a row into a table, and it works, but if I try to do the same thing in phpMyAdmin, it just says "no change". phpMyAdmin will delete rows, select rows, but not insert or update them. Drupal does the same thing - it will select info from the tables ok, but not insert or update (or delete). Any ideas? I'm really starting to get desperate! Cheers, Marek

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• I cannot access Windows Update at all

  - by Cardinal fang

  I have been unable to access the Windows update site for a couple of weeks now. I just get a message saying "Internet Explorer cannot display the webpage" and saying I have connection problems. Same thing is replicated with any other Microsoft site I try to access. The Automatic Updates also do not work. I can access every other wesbite I've surfed to. I've tried Googling the problem and based on what other site have suggested I have cleared my cache and temp files. I've scanning my hard drive with my antivirus in case I have a virus (nada). I've tried turning off my firewall and anti-virus (I run Zone Alarm). I've downloaded SpyBot and scanned my drive with that in case something was missed by Zone Alarm (again nada). Based on suggestions from the smart cookies on the Bad Science forum, I've used nslookup to check my translation isn't wonky (got all the info they said I should get). I've also tried navigating there directly using the IP address I was given (nope). I normally access the internet through a 3 mobile broadband connection, but have also tried connecting using a mate's wi-fi connection in case it was something on my mobile modem interferring. I run Windows XP SP3 with Internet Explorer 7 and Zone Alarm Internet Security Suite as my anti-virus/ firewall. Any suggestions?

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• Simple UPDATE query with (sometime) long query times

  - by Eric

  I run a dedicated MySQL server (2 cores, 16GB RAM) serving 100-200 requests per second. It is getting sluggish during peak traffic and I have a hard time optimizing the server. So I'm looking for some ideas now that I have done lots of Innodb fine-tuning with the "TUNING PRIMER" The query that now generates most slow queries is the following (see result from mysqldumpslow): Count: 433 Time=3.40s (1470s) Lock=0.00s (0s) Rows=0.0 (0), UPDATE user_sessions SET tid='S' WHERE idsession='S' I am very surprised to have so many long queries for such a simple query with no locking. Fyi, the table is InnoDB and has 14000 rows. It contains all active sessions on the site with approx 10 UPDATE and SELECT hits per second. Here is its structure: CREATE TABLE `user_sessions` ( `personid` mediumint(9) NOT NULL DEFAULT '0', `ip` varchar(18) COLLATE utf8_unicode_ci NOT NULL, `idsession` varchar(32) COLLATE utf8_unicode_ci NOT NULL, `datum` date NOT NULL DEFAULT '0000-00-00', `tid` time NOT NULL DEFAULT '00:00:00', `status` tinyint(4) NOT NULL DEFAULT '0', KEY `personid` (`personid`), KEY `idsession` (`idsession`), KEY `datum` (`datum`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci Any ideas?

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• How to get data from database but from the exact row?

  - by Nitz

  Hey Guys, I am using mysql. Now I want to write that query in which i will give mysql the row number then mysql will data from that column no only. means.. if i have twenty rows in database but i want to get only 10th no of rows data? so how to write that kind query?

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• Cumulative Update packages for SQL Server 2008 are available now: CU7 for SQL2008 SP2 and CU2 for SQL2008 SP3

  - by ssqa.net

  Another instalment of Cumulative Update package for SQL Server 2008 SP3 is available now, which is CU2 and the build number is known as 10.00.5768.00. As usual this CU2 for SQL2008 SP3 contains hotfixes for issues that were fixed after the release of SQL Server 2008 Service Pack 3 (SP3). KBA2633143 list the following article numbers about more information on the fixes: VSTS bug number KB article number Description 794387 2522893 (http://support.microsoft.com/kb/2522893/ ) FIX: A backup operation...(read more)

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• What do I select for "GRUB install devices" after an update?

  - by jgbelacqua

  After running Update Manager, a debconf window (titled "Configuring grub-pc"), popped up, requiring me to select the appropriateGRUB install devices for my system. I've made no changes to grub or the filesystem recently, and I don't remember what options I selected last time I did make a change. How do I know what to select? I'm assuming the wrong answer could render my system unable to boot. Here's the debconf dialog: Here's the window and text that is displayed when selecting "help" :

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• how can I update my Firefox 4.0 beta in Ubuntu 11.04 natty 64bit ?

  - by Denja

  Hi community, I'm using Ubuntu 11.04 natty 64bit with the integrated Firefox 4.0 beta Firefox 4.0 is not yet stable as beta and has lots of bugs when I open mainly Java applications in the web.Usually it freeze and even mess with Ubuntu gnome panel. It seems I cannot find any PPA related with Firefox beta updates in my Software source . How can I update my Firefox 4.0 beta in Ubuntu 11.04 natty 64bit?

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• How can I run update manager even if says "Check your internet connection."?

  - by onderbakirtas

  This problem caused last night when I try to update my distribution. I have no idea why this happened, just I think I have been updating with Bluetooth internet connection and it has down. I have an image related to this issue: http://i.stack.imgur.com/Z6RKU.png I have also tried a solution that has been written in this forum: http://ubuntuforums.org/archive/index.php/t-1648701.html I'm waiting for your assists. Thanks for now.

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• Managing scalability and availability with two servers running Apache Httpd, Apache Mina and MySQL

  - by celalo

  Hello, I am not a developer and I don't much experience with scalable server architectures. But I am in need of a highly available and scalable system for one of my projects. There is going to be two servers I am going to use for the time being. Both with 4 core CPUs and 8 GB RAM with RAID structures running CentOS 5.4. I will also have feature called "Failover IP" which enables to direct an IP address to another server within short time. The applications which will be run on the servers: There is going to be a Java application based on Apache Mina server for handling TCP requests from some hundreds of network devices where the devices are going to send request as much as one request per minute. Handling those requests, includes parsing the requests and inserting a few rows to the Database. Parsing requests before inserting data to the DB does take neglectable time. There is going to be MySQL server, as I stated above. Also there is going to be a PHP web application running on Apache Httpd Server which uses the same DB with the Java application. What I wish to have is to make use of those two servers at the most. I was imagining to have the servers identical, sharing the work load. MySQL could be a cluster maybe? And if some application fails or the whole machine goes down, the other will continue serving the requests seamlessly. Reminding that a "Failover IP" feature will be available for me to take advantage of. Also, It should be kept in mind that number of servers could increase in time, to meet the demand. What can you suggest? Which kind of tools I can make use of? Which kind of monitoring software (paid/unpaid) I have? Thanks in advance.

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• PHP + MYSQL site perfomance

  - by Diego

  I have to manage a site which wasn't developed by me. It is in PHP using a mysql database, which is located in the web server. The site, sometimes (when the visitors increase too much) stops responding, or respond too slow. I have developed some sites in PHP but never took care of the management so really don't know where to start. The server (the hard) seems to be fine, when the web stops responding the cpu is being used at about 55% and has a lot of memory. I'm not asking someone to solve this issue. I only would really like if someone could give me a few tips about where can I find logs and how should I read and interpret them. So, that way I would be able to know if its the net traffic, the database (which queries), or what. Thanks! Update: Forgot to say: it is a Windows Server 2003. Note: I've recorded about a day with Jet Profiler. I don't really understand all the information it provides but there is one query which it marks as really slow. It makes sense because it is a select with a where clause which has three like condition. Initially I didn't include this in my question because when I run the query from MySQL Query Browser it doesn't take any long. It is under 0.01 seconds.

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• Does the mysql Client API Library version have to match the installed MySQL/Percona server version?

  - by William Jamieson

  I'm running Scientific Linux 6.3 (binary compaible with Redhat/CentOS/etc..) as a LAMP stack. I've installed Percona server and client v5.5 from the Percona yum repository. However when I run phpinfo() I notice that under the MySQL and mysqli sections, it lists the Client API Library version as 5.1.66, and not 5.5x. I'm guessing these need to match, at least to major versions, and I have no idea what the possible consequences of such a mismatch could be. Do I need to revert to Percona server and client v5.1? This is for a production environment so it needs to be right. I'd appreciate any input or experience people could offer. I'm running Scientific Linux 6.3 (binary compaible with Redhat/CentOS/etc..) as a LAMP stack. I've installed Percona server and client v5.5 from the Percona yum repository. However when I run phpinfo() I notice that under the MySQL and mysqli sections, it lists the Client API Library version as 5.1.66, and not 5.5x. I'm guessing these need to match, at least to major versions, and I have no idea what the possible consequences of such a mismatch could be. Do I need to revert to Percona server and client v5.1? This is for a production environment so it needs to be right. I'd appreciate any input or experience people could offer. (Note I will also be cross posting this on the Percona forums)

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• Mysql, SSL and java client problem

  - by CarlosH

  I'm trying to connect to an SSL-enabled mysql server from my own java application. After setting up ssl on mysqld, and successfuly tested an account using "REQUIRE ISSUER and SUBJECT", I wanted to use that account in a java app. I've generated a private key (to a file called keystore.jks) and csr using keytool, and signed the csr using my own CA(The same used with mysqld and its certificate). Once signed the csr, I've imported the CA and client cert into the keystore.jks file. When running the application the SSL connection can't be established. Relevant logs: ... [Raw read]: length = 5 0000: 16 00 00 02 FF ..... main, handling exception: javax.net.ssl.SSLException: Unsupported record version Unknown-0.0 main, SEND TLSv1 ALERT: fatal, description = unexpected_message Padded plaintext before ENCRYPTION: len = 32 0000: 02 0A BE 0F AD 64 0E 9A 32 3B FE 76 EF 40 A4 C9 .....d..2;.v.@.. 0010: B4 A7 F3 25 E7 E5 09 09 09 09 09 09 09 09 09 09 ...%............ main, WRITE: TLSv1 Alert, length = 32 [Raw write]: length = 37 0000: 15 03 01 00 20 AB 41 9E 37 F4 B8 44 A7 FD 91 B1 .... .A.7..D.... 0010: 75 5A 42 C6 70 BF D4 DC EC 83 01 0C CF 64 C7 36 uZB.p........d.6 0020: 2F 69 EC D2 7F /i... main, called closeSocket() main, called close() main, called closeInternal(true) main, called close() main, called closeInternal(true) connection error com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Any idea why is this happening?

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• MySQL Server Is Slow

  - by user2853965746

  I have two MySQL servers and one was just recently setup. The one I just recently setup is a bit slower than my older one, which kind of bothers me because I don't want my clients to be upset with the speed difference when I launch the new one. The older server runs on Ubuntu (~13.04 I believe) and the new one is on Debian 6. Both servers are 2GB ram, but my newer server is has an SSD, so I thought it might be the same speed if not faster. Anyway, the speed difference isn't too much (both are still under a second, but still noticeable). Whenever I select 50 rows from the user table on my older server (SELECT * FROM users LIMIT 50), I get the results in 0.003 s. There is 100,000+ accounts in that table. Whenever running the same command on the same table with only six dev accounts, it takes 0.069 s. It may not seem like a lot, but it's noticeable when you're used to a fast response. I added skip-name-resolve to the config and it didn't seem to help. Basically I'm asking if anyone knows what can cause a MySQL server to be slow in Debian 6? Should I just drop it and switch to Ubuntu like the older server (I don't think the OS is the problem, but you never know)? The older server is under a lot of use too, it's used a lot for web api's on my website. A lot of connections and stuff, and it still remains fast.

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• MySQL encoding problem after site move

  - by Quan Zhou

  Guys, I need your help. Since last month my friend has lost his database on Dreamhost, he decided to move his wordpress based blog site (written in Chinese) to my server. He's using a wp-plugin called wp-db-backup to perform regular db backups. And the servers backgrounds are: Dreamhost: Linux 2.6.31.5-modsign-aufs2-grsec-2-opt mysql Ver 14.12 Distrib 5.0.16, for pc-linux-gnu (i386) using readline 5.0 apache2 unknown version My Server: Linux li159-46 2.6.32.12-x86_64-linode12 mysql Ver 14.14 Distrib 5.1.45, for debian-linux-gnu (x86_64) using readline 6.1 nginx 0.8.36 His site's encoding was UTF-8 in both wp-config and db. I imported his db backup file in UTF-8 by default, then I sync'd files using rsync from dreamhost, then I just changed the db address and nothing more. But when I take first look at the "new" site, it was full of unreadable characters, I met this problem before, I changed charset options in browser but none of them can make it displayed properly. Then I converted his db to GB18030, it works with only if browser set charset to GB18030 either GBK, but by default they recognize the charset as UTF-8. I tried to edit the headers but it doesn't work. What could I do now? Thx~~

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• Error importing large MySQL dump file which includes binary BLOBs in Windows

  - by Daniel Magliola

  I'm trying to import a MySQL dump file, which I got from my hosting company, into my Windows dev machine, and i'm running into problems. I'm importing this from the command line, and i'm getting a very weird error: ERROR 2005 (HY000) at line 3118: Unknown MySQL server host '+?*á±dÆ-N+Æ·h^ye"p-i+ Z+-$?P+Y.8+|?+l8/l¦¦î7æ¦X¦XE.ºG[ ;-ï?éµ?º+¦¦].?+f9d릦'+ÿG?-0à¡úè?-?ù??¥'+NÑ' (11004) I'm attaching the screenshot because i'm assuming the binary data will get lost... I'm not exactly sure what the problem is, but two potential issues are the size of the file (2 Gb) which is not insanely large, but it's not trivially small either, and the other is the fact that many of these tables have JPG images in them (which is why the file is 2Gb large, for the most part). Also, the dump was taken in a Linux machine and I'm importing this into Windows, not sure if that could add to the problems (I understand it shouldn't) Now, that binary garbage is why I think the images in the file might be a problem, but i've been able to import similar dumps from the same hosting company in the past, so i'm not sure what might be the issue. Also, trying to look into this file (and line 3118 in particular) is kind of impossible given its size (i'm not really handy with Linux command line tools like grep, sed, etc). The file might be corrupted, but i'm not exactly sure how to check it. What I downloaded was a .gz file, which I "tested" with WinRar and it says it looks OK (i'm assuming gz has some kind of CRC). If you can think of a better way to test it, I'd love to try that. Any ideas what could be going on / how to get past this error? I'm not very attached to the data in particular, since I just want this as a copy for dev, so if I have to lose a few records, i'm fine with that, as long as the schema remains perfectly sound. Thanks! Daniel

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• HAproxy with MySQL Master-Master Replication incredibly slow

  - by Yayap

  I have two MySQL servers in multi-master mode, with an HAproxy machine for simple load balancing/redundancy. When I am connected to one of the servers directly and try to update about 100,000 entries, it is completed including replication in about half a minute. When connecting through the proxy it takes usually over three whole minutes. Is it normal to have that type of latency? Is something amiss with my proxy configuration (included below)? This is getting really frustrating as I assumed the proxy would do some sort of load balancing, or at least have little to no overhead. #--------------------------------------------------------------------- # Example configuration for a possible web application. See the # full configuration options online. # # http://haproxy.1wt.eu/download/1.4/doc/configuration.txt # #--------------------------------------------------------------------- #--------------------------------------------------------------------- # Global settings #--------------------------------------------------------------------- global # to have these messages end up in /var/log/haproxy.log you will # need to: # # 1) configure syslog to accept network log events. This is done # by adding the '-r' option to the SYSLOGD_OPTIONS in # /etc/sysconfig/syslog # # 2) configure local2 events to go to the /var/log/haproxy.log # file. A line like the following can be added to # /etc/sysconfig/syslog # # local2.* /var/log/haproxy.log # log 127.0.0.1 local2 # chroot /var/lib/haproxy # pidfile /var/run/haproxy.pid maxconn 4096 user haproxy group haproxy daemon #debug #quiet # turn on stats unix socket stats socket /var/lib/haproxy/stats #--------------------------------------------------------------------- # common defaults that all the 'listen' and 'backend' sections will # use if not designated in their block #--------------------------------------------------------------------- defaults mode tcp log global #option tcplog option dontlognull option tcp-smart-accept option tcp-smart-connect #option http-server-close #option forwardfor except 127.0.0.0/8 #option redispatch retries 3 #timeout http-request 10s #timeout queue 1m timeout connect 400 timeout client 500 timeout server 300 #timeout http-keep-alive 10s #timeout check 10s maxconn 2000 listen mysql-cluster 0.0.0.0:3306 mode tcp balance roundrobin option tcpka option httpchk server db01 192.168.15.118:3306 weight 1 inter 1s rise 1 fall 1 server db02 192.168.15.119:3306 weight 1 inter 1s rise 1 fall 1

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• mysql INNODB inserts very slow

  - by 133794m3r

  The database's schema is as follows. CREATE TABLE `items` ( `id` mediumint( 8 ) unsigned NOT NULL AUTO_INCREMENT , `name` varchar( 45 ) NOT NULL , `main_type` tinyint( 4 ) NOT NULL , `rarity` tinyint( 4 ) NOT NULL , `stack_size` smallint( 6 ) NOT NULL , `sub_type` tinyint( 4 ) NOT NULL , `cost` mediumint( 8 ) unsigned NOT NULL , `ilvl` smallint( 6 ) unsigned NOT NULL DEFAULT '0', `flavor_text` varchar( 250 ) NOT NULL , `rlvl` tinyint( 3 ) unsigned NOT NULL , `final` tinyint( 4 ) NOT NULL DEFAULT '0', PRIMARY KEY ( `id` ) ) ENGINE = InnoDB DEFAULT CHARSET = ascii; Now, doing an insert on this table takes 0.22 seconds. I don't know why it's taking so long to do a single row insert. Reads are really really fast something like 0.005 seconds. With using the example configuration from here dev mysql innodb it averages ~0.002 to ~0.005 seconds. Why it takes more than 100x more time to do a single insert makes no sense to me. My computer is as follows. OS:Debian Sid x86-x64, Mysql 5.1, RAM:4GB ddr2, cpu 2.0Ghz dual core, HDD 7200RPM 32MB cache 640GB. Why it's taking almost 100x as much time for a SELECT * FROM items; vs INSERT INTO items ...; will never make any sense to me. It's still a small table at only 70 rows, and took that long even when it had 0 rows.

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• Can't connect to MySQL on CentOS 5 Error 13 - Permission Denied

  - by abszero

  Ok, I have an install of CentOS 5 running as a GuestOS in VirtualBox. The network card for the Cent box is bridged with that of my host OS so that the boxes can see each other. Cent has an IP of 192.168.1.108 and my Host box has an IP of .104. Everything, with regard to networking, seems to be working properly as I can access the Drupal install that is on the Cent box from a web browser on my host box by navigating to http://192.168.1.108 however when I try to configure the database for Drupal through the Drupal install interface I am getting the Can't connect to MySQL error. First I thought this might of been a Firewall issue so I stopped iptables but that had no effect. I thought maybe the user I had setup did not have access to the server so I tried root and that did not work. Searching on the net said that I needed to provide a bind-address parameter to my.cnf so I did that with no change. (As a side note the length of my my.cnf file was MUCH shorter than the ones presented online. In fact under mysqld all I have are datadir, socket, user, and bind-address. Is this normal or should the file be more verbose?) After a few hours of messing with permissions and such I tried using 'localhost' as the value for the database server, from my HOST OS, and the Drupal install kicked off without a problem. So while my issue is resolved I am curious as to why 'localhost' works and why 192.168.1.108 did not? Is there something i need to do to specifically access the MySQL box via the aforementioned IP? Thanks.

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• MySQL Master - Master Broken

  - by Recc

  I've Inherited a Mysql master master system, I've noticed the second master (lets call it slave from now on as it's running on a 'slave' machine) stopped getting its db's updated. I saw that Master: Slave_IO_Running: Yes Slave_SQL_Running: Yes Slave: (with an error I truncated) Slave_IO_Running: Yes Slave_SQL_Running: No Last_Errno: 1062 Last_Error: Error 'Duplicate entry '3' for key 'PRIMARY'' on [...] I don't know what caused it to process considering we cant get duplicate there. What's important is to resume normal operations; Right now I've stop slave; on the Master and stop slave; on the Slave because I saw that if I change records on the Slave the changes Do Get Propagated to Master which is in active use. How do I: Force sync EVERYTHING from master to slave without affecting data on master? Then hopefully have slave pickup replication as usual? UPDATE OK I Tried deleting all tables on slave then it complained in that error section that the 'table' doesnt exist. So i made a no data dump of Master, and made sure I have only empty tables in Secondary (slave). I start slave; on slave BUT now it's complaining about bloody alter table statements for instance: Last_Errno: 1060 Last_Error: Error 'Duplicate column name [...] Query: 'ALTER TABLE [...] How to skip the fracking alter statements I just want to replicate the bloody data and be done with it, my tables have the lates changes already FFS and now its complaining about changes made after the replication seized weeks ago How do I reset the log or something? OUTSTANDING Why would this start happening? The "Secondary" is propagating to "Primary". "Primary" is not propagating to "Secondary". But any fixes I tried to do left it in the same state Yes-Yes Yes-No with same Last_Error. I think around that time the server was taken off the network, could that confuse MySQL in some way?

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• Setting up MySQL Linux slave with a Windows master

  - by philwilks

  I'm running a MySQL 5.0 database server on Windows Server 2008. The total size of the database is about 1Gb. I make daily backups, but I'd like to step up to having a slave server for extra protection. My thinking was that I wouldn't need the expense of a Windows machine to do this, and a Linux "cloud server" from RackSpace would do the job well for quite a low cost. However I have little experience with Linux, so I have a few questions... Does this sound like a good idea? Is there anything wrong with linking Windows and Linux MySQL servers? Does Linux have the equivalent of Remote Desktop Connection? If so can I use this from a Windows machine? Would a particular Linux distro be well suited to this task? RackSpace offer ArchLinux, CentOS, Debian, Fedora and Ubuntu. My immediate thinking is to go with Ubuntu as I've heard it's more friendly for people coming from a Windows background. Any comments you have would be very appreciated! Phil

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• Can MySQL use multiple data directories on different physical storage devices

  - by sirlark

  I am running MySQL with its data dir on a 128Gb SSD. I am dealing with large datasets (~20Gb) that are loaded and processed weekly, each stored in a separate DB for the purposes of time point comparisons. Putting all the data into a single database in unfeasible because the performance on such large databases is already a problem. However, I cannot keep more than 6 datasets on the SSD at a time. Right now I am manually dumping the oldest to much larger 2Tb spinning disk every week, and dropping the database to make space for the new one. But if I need one of the 'archived' databases (a semi regular occurrence) I have to drop a current one (after dumping), reload it, do what I need to, then reverse the results. Is there a way to configure MySQL to use multiple data directories, say one on the SSD and one on the 2Tb spinning disk, and 'merge' them transparently? If I could do this, then archiving would no longer mean "moved out of the database entirely", but instead would mean "moved onto the slow physical device". The time taken to do my queries on a spinning disk would be less than that taken to completely dump, drop, load, drop, reload two entire databases, so this is a win. I thought of using something like unionfs but I can't think of a way to control which database gets stored on which physical drive, because it works by merging on a directory level (from what I understand) so I'm still stuck with using multiple directories. Any help appreciated, thanks in advance

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• Apache and MySQL not working well after extending filesystem

  - by xtrimsky

  I had 4Gb on my /var (/dev/mapper/vg00-var) filesystem, and I wanted to extend it to 160Gb. I did it following this tutorial: http://faq.1and1.com/dedicated_servers/root_server/linux_admin_help/7.html Now I have 160: Filesystem Size Used Avail Use% Mounted on /dev/md1 4.0G 424M 3.6G 11% / /dev/mapper/vg00-usr 4.3G 1.4G 3.0G 32% /usr /dev/mapper/vg00-var 198G 6.5G 192G 4% /var /dev/mapper/vg00-home 4.3G 4.4M 4.3G 1% /home none 1.1G 0 1.1G 0% /tmp Now I have a problem, in order for Apache to work, each time I reboot, I need to also reboot apache: "apachectl -k restart" which is already terrible. I think this is because /var contains the htdocs The worst part is, mysql is not starting at all. Mysql has some files also in /var What have I done wrong ?? :( Thank you EDIT: Attaching /var/log/mysqld.log: 120602 11:17:44 InnoDB: Waiting for the background threads to start 120602 11:17:45 InnoDB: 1.1.8 started; log sequence number 8354009 120602 11:17:45 [ERROR] /usr/libexec/mysqld: unknown variable 'set-variable=local-infile=0' 120602 11:17:45 [ERROR] Aborting 120602 11:17:45 InnoDB: Starting shutdown... 120602 11:17:46 InnoDB: Shutdown completed; log sequence number 8354009 120602 11:17:46 [Note] /usr/libexec/mysqld: Shutdown complete 120602 11:17:46 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended

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