Ubuntu is a desktop and server operating system based on Debian GNU/Linux. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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Upgrading MariaDB Galera cluster from 5.5 to 10.0 - rolling upgrade possible?

I've had a good search around and cannot find much on the topic. We want to upgrade our live MariaDB 5.5 Galera cluster to the MariaDB 10.0 branch, ideally without any downtime. We installed ...
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1answer
361 views

changed password for postgres login in pgAdmin, now can't connect to server

I was trying to use pg_dump to script out a database and in the process I used pgAdmin to change the password for the postgres user. I realize (now) that changing that password was a bad idea. But now ...
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2answers
1k views

Difficulty with Postgis extension on Ubuntu 14.04

I have a updated Ubuntu 14.04 running postgresql 9.3 (installed using the tutorial from https://wiki.postgresql.org/wiki/Apt). When I access my database through pgadmin and go to the console and ...
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1answer
116 views

CentOS and Ubuntu differences with information_schema

I have a Vagrant VM running CentOS 6.5. My localhost is Ubuntu 12.04, both running MySQL. I have the exact same database on both (structured exactly the same, different testing seed data in both). ...
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3answers
3k views

how make mysql table name case insensitive in ubuntu

I am using Ubuntu 13.10 and Mysql 5.6 and I know Database Name and Table Name are case sensitive in Ubuntu(some *nix) environment. Now i want mysql should work for as case insensitive. Is it possible. ...
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1answer
1k views

Oracle 12c on Ubuntu 12.04

I just installed oracle databse 12c on an ubuntu 12.04, i followed this tutorial ...
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1answer
131 views

Ubuntu / MySQL - How to choose from the various downloads?

I have Ubuntu 12.04.2 LTS. I would like install MySQL 5.5.29. So I go to the MySQL 5.5 archive page http://downloads.mysql.com/archives.php?p=mysql-5.5&o=other and scroll down to section 5.5.29 ...
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2answers
415 views

MySQL upgrade on Ubuntu - any heads ups?

I am needing to upgrade MySQL on Ubuntu, it is a production server and naturally cautious. My many googles look to be essentially saying that I need to : Backup my current mysql database and ...
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1answer
10 views

odbc connection from windows machine to mysql server running on ubuntu?

I was able to install mysql server on an ubuntu machine and set up a test data base, created a user and granted that user access to the database. I also changed the binding address to the IP of the ...
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1answer
99 views

Error: /var/lib/postgresql/9.3/main is not accessible or does not exist

I have a PostgreSQL db that was running on my server. I tried to do a db_dump and got a weird error message. I eventually thought I would just restart PostgreSQL. However its now stopped and won't ...
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2answers
191 views

starting pgbouncer on startup

I installed pgbouncer and configured it and it starts only via using this command pgbouncer /etc/pgbouncer/pgbouncer.ini however using service pgbouncer start it dose not start. I then set up ...
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1answer
556 views

How to resolve “Error log file size is increasing in mysql 5.5” issue w/o restarting mysql

I have an Ubuntu server with MySQL 5.5 installed. In /var/lib/mysql a .err file is kept on updating with these warnings only: [Warning] IP address '234.22.11.221' could not be resolved: Temporary ...
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3answers
144 views

Large RAM use after import database - ubuntu server

My new VPS has 4GB of RAM. Before importing database system use about 1.2 GB of RAM. When I import into the database, using 250 MB SQL file, 25000 tables use of RAM goes to 97%, htop showing 3302 mb ...
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1answer
141 views

Connection with SQL*Plus to Oracle

I've installed Oracle Database Express 10g on Ubuntu, but the following error occures when I try to connect to sql plus using the sysdba as username and it's password which I gave during installation ...
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1answer
83 views

multiple requests shut down mysql

I have some problems with my mysql database. I configured a server with the database and other services (apache, php) and put run multiple applications. There are two problems. Every day at the ...
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1answer
601 views

Oracle 11g install problem on Ubuntu

I ran the runInstaller script in the root dir of the extracted zip files. After some pages of the graphical installer it sent me to run /tmp/CVU_11.2.0.1.0_macbook/runfixup.sh as root. It gave me ...
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1answer
1k views

Howto disable Postgres listening on TCP?

Simply to avoid many problems in the first place I do not want my postgres server program to accept/listen to anything from any network (i.e. TCP/IP 4/6) connections. My setup is a Postgres 9.1 on ...
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1answer
5k views

mysql - Access denied for user 'user'@'localhost' (using password: NO)

I'm trying to fix the infamous "Access denied" error, but I don't understand why my fix doesn't work. Can someone please help me? EDIT: This is the sequence of steps I took to fix the problem. It is ...
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1answer
2k views

How to completely remove EnterpriseDB Installation of Postgresql on Ubuntu?

All, I'm trying to install/run PostgreSQL 9.3, but am receiving a multitude of errors which seem to point to a failed installation of postgresql from the enterpriseDB package. For example, trying to ...
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1answer
779 views

Mysql update table using ubuntu terminal

I have a CSV file that has 2 columns Name Email I have a table in my database that has the same columns + some extra columns. Now I would like to update my db table using that csv file. I mean ...
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1answer
95 views

Cant get postgresql running on ubuntu 12.04

I ran sudo apt-get install postgresql on ubuntu 12.04. I didnt get a postgresql.config, instead I got a postgresql.config.sample and pg_hba.conf.sample. I renamed these (they installed in ...
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2answers
2k views

PostgreSQL cannot start after replacing contents inside its Data folder

When recovering the Postgresql database from a hacked Ubuntu 12.04 server, I copied the data directory to another location, reinstalled the OS and PostgreSQL, stopped PostgreSQL service, removed the ...
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1answer
505 views

upgrade mysql 5.1 to 5.5 on Ubuntu 11.10

I currently have mysql server 5.1 installed via apt-get on my production Ubuntu 11.10 server root@Ubuntu-1110-oneiric-64-minimal$ dpkg --get-selections | grep sql-server mysql-server ...
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2answers
273 views

Installing PostgreSQL 9.2 and PostGIS 2.0 on Ubuntu 12

At the current moment, March 4th 2013, can PostGIS2.0 be install with PostgreSQL 9.2? I checked their website and to my understanding it is not possible... I hope that's not the case. Can anyone ...
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1answer
1k views

libreadline.so.6

when I was installing PostgreSQL from source code I had to install the libreadline.so.6 library. From that moment I can't update my kubuntu system. The error is: Setting up ubuntu-keyring ...
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1answer
2k views

MySql 5.5 in ubuntu repository

Sorry for duplicate question. I am looking for the best way to install mysql 5.5 on ubuntu. So far, there are few options: Installing from tar.gz Installing from PPA. Alien on RPM. All of them ...
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0answers
17 views

Are A or D series VMs better for deploying PostgreSQL on Azure?

In Azure there are VMs that have local storage either as spinning disk (A-series) or SSD (D-series). Considering this space is wiped on reboot... Is there a benefit to choosing the SSD option for ...
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0answers
26 views

MySQL performance_schema not working properly?

I have MySQL 5.6.19 community server running on my Ubuntu 14.04. Lately I have been trying to monitor MySQL server using performance_schema. Previously I used to do this by running SHOW FULL ...
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0answers
27 views

Pre requirements missing when installing oracle database 11g Ubuntu

I'm trying to install Oracle Database 11g on Ubuntu 14.04. At the middle of executing ./runInstaller I'm getting following message saying about missing prerequisites. This says make is missing but, ...
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0answers
28 views

mysqldump replace option - ubuntu / mediawiki

I know this is probably a silly question, but I'd like to be sure, rather than make assumptions. There's the option to use 'replace' in a mysqldump, which uses the 'REPLACE' rather than the 'INSERT' ...
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0answers
92 views

MySQL 5.5, Xubuntu 14.04 - INSERT and UPDATE bottleneck

DBAs: I have been developing and maintaining plugins for Moodle for the last ~2 years, and have recently decided to try using my local desktop again, rather than my institutions ESX VMs, as a ...
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1answer
793 views

Good configuration for 2gb (my.cnf) [duplicate]

I'm little newbie in configuring mysql and i seek a good configuration for mysql i have one site in ajax with many query and very slowly with VPS Iam in kimsufi 2gb i run only mysql in vps not apache ...
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0answers
34 views

Optimization mysql very slowly [duplicate]

Hello I have a server in kimsufi 2gb RAM and 500gb storage but the query with php mysql is very slowly I have change innodb buffer pool size to 500M but i have error too many connections, i add max ...
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0answers
42 views

Starting up postgres on Ubuntu for the first time

I've installed postgres on ubuntu, created a node and now I'm trying to start up that node as per the instructions: postgres --coordinator -D /usr/local/pgsql/data -p 1281 But I get the following ...
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0answers
245 views

mysql service failed to start when datadir changein ubuntu

I have dual Operating system on PC, windows 8 and ubuntu 14.0, and I am mostely using ubuntu because my MySql database is hosted on ubuntu. Recently when I am trying to restore my database, which is ...
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0answers
188 views

huge size of /var/lib/postgresql/9.3/main/base/1 directory (postgresql)

i'm using postgresql 9.3.4 and real size of database is about 5.5 GB but POSTGRESQL fill disk about 256 GB !! is this POSTGRESQL Cache and what is method to clean thing issue ?
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0answers
65 views

listen_addresses set to '*' in postgresql.conf disappears every reboot of Ubuntu

I have set listen_addresses to '*' in /etc/postgresql/9.1/main/postgresql.conf and stopped/started Postgres 9.1 with /etc/init.d/postgresql to "reload" configs. This works fine and I can access my ...
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1answer
160 views

Mysql can't write to filesystem

I need to output some queries as csv files. The directory is in the webroot and I want it to be writable by apache too, so I'm trying to add mysql to the www-data group (on Ubuntu). I thought this ...
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0answers
381 views

TokuDB fails to load in MariaDB, even when transparent hugepages are disabled

Earlier, I upgraded my website server to Ubuntu 14.04 LTS. I had a very nice setup with MariaDB and the TokuDB engine. However, the setup was kind of messed up when TokuDB refused to load properly, ...
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0answers
39 views

Connecting to a remote Postgres 9.1 DB

I am running Postgres 9.1 on Ubuntu. I have host all all my.ip.address/32 md5 set in pg_hba.conf and listen_addresses= '*' set in postgresql.conf. Running show listen_addresses shows '*' Running sudo ...
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0answers
55 views

MySQL Server constantly crashes

my apologies for having already posted on this issue, but it has moved on so far I feel a new question is the only way to go. First a little history - I have a MySQL server which runs a few small ...
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0answers
24 views

Connecting mysql on server A/ to webapp on server B/

I am connecting mysql on server A/ to a webapp located on server B/. Both servers are Ubuntu servers. For security purposes, is there any way on server B to avoid showing the full path / IP address ...
0
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1answer
871 views

Recover an Innodb mysql database from an EBS on Ec2

My instance crashed on AWs, and i had to create a new one and mount my Vol that contain my web application and the Mysql Database. After i stoped the Mysql Server i mounted the vol and also mounted ...
0
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1answer
259 views

MySQL crashes daily on VPS with Ubuntu Server 12.04 - How can I find the error or conflict?

Every day for the past four days, my website server crashes at least once. (Error establishing database connection. As long as I catch it, I simply have to do the following command: sudo ...
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0answers
9 views

Multiple requests shut down MySQL [duplicate]

I have some problems with my MySQL database. I configured a server with the database and other services (apache, php) and put run multiple applications. There are two problems: Every day at the ...
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2answers
457 views

Warning before issuing delete/update command in mysql/oracle , then executes

Is there any utility , function either in mysql /oracle that if i issue some delete/update command wrongly , a message must prompt at command_line* (if possible in ubuntu) asking whether "you sure to ...
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0answers
76 views

MySQL overtaking system memory and forced to restart

I'm facing a frustrating issue. I have a MySQL Server 5.5 running on top of Ubuntu Server 12.04.3 LTS (VMWare guest w/ 16GB RAM - 8 Cores) mysqltuner.pl says [OK] Maximum possible memory usage: ...
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2answers
1k views

Freeware GUI tool for DB2 , usable in Ubuntu Linux [closed]

Are there any freeware user interface tools for DB2 to be used in Linux (Ubuntu 11.04)? RazorSQL is pretty good, but it's not freeware.
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1answer
3k views

oracle 11gR2 installation on ubuntu 14.04 LTS

I have installed oracle 11gR2 on ubuntu 14.04 LTS. On terminal I wrote following to start oracle: sudo service oracle-xe start on pressing enter, got following output : " Starting Oracle Net ...
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1answer
100 views

MySQL ran out of space, now won't start

So the partition MySQL was mounted on ran out of space. As a quick fix, I decided to move mysql's data directory to /home/minecraft/mysql/. I then changed the datadir in the config to the correcy ...