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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Ubuntu / MySQL / Percona XtraBackup gives error “sh: 1: xtrabackup_55: not found”

Hello I installed Ubuntu 12.04.2 LTS on a fresh box. This installed MySQL 5.5.29. I installed percona-xtrabackup-2.0.6-521.tar.gz, and moved the executables to /usr/bin/ But innobackupex is ...
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1answer
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clusterdb stopped working for PostgreSQL database in Ubuntu 12.04 server

After a fresh PostgreSQL install (version 9.2) on my Ubuntu server 12.04, clusterdb utility stopped working. I used the same config files as I used with version 9.1. Below is the actual command: ...
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Insert row not working in postgres-xl?

I am using postgres-xl 9.2 in ubuntu 12.04. The Problem is i am not able to insert data in table. apple@ubuntu:/usr/local/pgsql/bin$ ./psql postgres -p 7777 -h localhost psql (PGXL 9.2.0, based on PG ...
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1answer
87 views

postgresql won't install dependencies

Please help me figure out why postgresql isn't playing nice with updating. I can't find anything on SO or Google that remedies this problem. This is a production server and a distribution reinstall ...
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0answers
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Can I export a PostgreSQL database from Heroku and Import as a PostGIS database in Digital Ocean?

Disclaimer: This may be a dumb question. This is honestly way over my head... one of the pitfalls of using Heroku for too long. I have a PostgreSQL database on Heroku. Now I'm migrating to Digital ...
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1answer
52 views

How can I remove references to tables after removing .frm files?

So I had a bunch of csv files in my /var/lib/mysql/imports directory for importing into mysql tables I had created. To clean up the folder I deleted all the files in the directory (incorrectly ...
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3answers
710 views

How i can export just structure of mysql database

I use ubuntu 14.10 Phpmyadmin I have ''big'' mysql database, 900mb, I need just structure of this database, how i can export just database structure/empty database without remove data or download ...
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1answer
106 views

MySQL on Ubuntu 32bits vs 64bits

My web app server is running on Ubuntu 12.04 server 32bits. The mysql db is going to be installed on a different Ubuntu 12.04 server. Should I use 32 bits for the server on which mysql is or 64 bits? ...
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Pg_restore table size differences

What would account for the difference in table sizes between one PostgreSQL database and another restored from its dump file? On an Ubuntu 12.04 host, I'm running PostgreSQL 9.1, and I dumped my ...
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3answers
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Issues installing MySQL server on Ubuntu 13.04

I'm currently trying to install a MySQL server on my Ubuntu 13.04 machine. The problem is, when I try to install it, I get error messages indicating that not all packages could be downloaded. When I ...
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restore compressed dump query in postgresql asks password [closed]

I'm using ubuntu OS and I took backup using sudo -u postgres pg_dump dbname | gzip > filename.gz in the file path as... /home/administrator/Documents/DB_Backup# sudo -u postgres pg_dump dbname ...
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MySQL replication backup

How to take MySQL Master-Master and Master-Slave replication backup?. I have setup Master-Master replication with a separate slave for each master on Ubuntu. What happens if, I issue or schedule ...
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816 views

Why can I not start mysql server on ubuntu after change the innodb_flush_log_at_trx_commit value to be 2?

Why can I not start mysql server on ubuntu after change the innodb_flush_log_at_trx_commit value to be 2 ? updated to answer the 3 questions: mysql> show variables like 'version%'; ...
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2answers
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How do I allow remote mysql access to all users?

I have setup a mysql server on unbuntu. The server hosts websites for my various clients. Hence, I want all of them(and any new clients) to have remote access to the mysql server. How do I configure ...
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3answers
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How do I install postgresql in Ubuntu?

I'm following these instructions, however I can only get to step 17.2. Despite installing postgresql successfully via the sudo apt-get install postgresql command, upon running initdb -D ...
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1answer
483 views

MongoDB shell version error (Server has startup warnings)

I installed MongoDB under Ubuntu server and when inter to MongoDB shell i got this error and warnings. MongoDB shell version: 2.4.7 connecting to: test Server has startup warnings: Sun Oct 27 ...
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1answer
1k views

MongoDB service not working after upgrade to Ubuntu 15.04

I have recently upgraded my Ubuntu from 14.10 to 15.04. All features seems to be working fine except MongoDB. It is not controllable from service as we do normally in Ubuntu. sudo service mongodb ...
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1answer
197 views

After upgrade from 9.1 to 9.3, commands still point to 9.1

Upgraded from 9.1 to 9.3 on my Ubuntu 12.04 server. Everything worked great but running commands like 'createdb' still runs them from the 9.1 path. /usr/lib/postgresql/9.1/bin/createdb: unrecognized ...
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1answer
451 views

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
1k 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
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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
168 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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1answer
2k 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
158 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
419 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
66 views

MongoDB eats 100% CPU when idle

I am running in OpenVZ container with Ubuntu 14.04 LTS. MongoDB version: db version v3.0.4 git version: 0481c958daeb2969800511e7475dc66986fa9ed5 I use clean installation like described here - ...
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1answer
55 views

Install PostgreSQL using source code or using apt-get?

I want to install PostgreSQL on a server that runs Ubuntu 14.04.2 LTS. I understand that I have two options: 1) Install PostgreSQL using the source code distribution e.g., ...
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1answer
92 views

How to handle user with no password in postgresql

I installed postgresql but it's asking me for passwords that I never had and never entered. There is a postgres ubuntu user and a database user named moodle. Neither of these were created with a ...
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1answer
56 views

how to check and list all the files related to mongodb in ubuntu? I am looking for config files, password informations for mongodb [closed]

I installed the mongodb package in ubuntu using apt following the instructions on http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/. I know that binaries are in /usr/bin/, and so on. ...
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1answer
248 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
997 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
676 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
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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
225 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
286 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
126 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
929 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
2k 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
9k 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
1k 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
104 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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1answer
611 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
279 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
2k 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
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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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1answer
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MySql DB from Ubuntu to RHEL

I would like to migrate my Mysql databases from Ubuntu to RHEL..what is the best way to proceed? I'm on community edition. I will be moving to entreprise edition of MySql on RHEL.
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1answer
54 views

Why do the queries slow down after a few minutes, when trying to build a DB?

First - I am a complete newb to DBA. Please be gentle. (And I am fairly new to python as well.) Oh, and I have no idea how to change any MySQL settings or the like, so all the MySQL DB settings are ...
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2answers
36 views

cannot access my DB server on ubuntu

server OS: Ubuntu 14.04 MYSQL Server version: 5.5.43-0ubuntu The output of: select User, host from user is: db % db localhost In my /etc/mysql/my.cnf, I made sure that bind-address is ...
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1answer
54 views

sqlplus not connecting to Oracle XE 11g

I installed Oracle XE 11g on my Ubuntu in vmware fusion. The oracle installation is all went fine but I am not able to connect the oracle database using sqlplus. I am getting this exception: $ ...
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1answer
67 views

MySQL on Ubuntu consuming almost all RAM

I've been having an issue with MySQL crashing randomly, apparently as a result of not having enough available memory (as discussed here: ...