A widely-used open-source operating system that is particularly popular on servers.

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657 views

Proper procedure for migrating a MySQL database to another Debian machine?

I have one server running an older Debian version with MySQL 5.x and a newer Debian server, also running MySQL. I've created a backup of all databases on the first server like so: mysqldump -uuser ...
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3answers
168 views

Upgrading Oracle from 11.1.0.6 to 11.2.0.2 on Linux Red Hat

I am trying to upgrade the Oracle db from 11.1.0.6 to 11.2.0.4 in Red Hat Linux 5.3. The current database is installed on location. I checked the path using command cat /etc/oratab ...
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4answers
404 views

Reading CSV files located on LINUX server and updating the tables in SQL Server Database

I was wondering how do we ingest CSV files located on a Red Hat LINUX server into SQL Server Database Table. I know we can write a Stored Procedure/Bulk Insert to read the files that are located on ...
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2answers
1k views

Hyperthreading & MySQL InnoDB Thread Concurrency Performance

I have a dedicated DB Server with the following specs" Ubuntu 12.04 LTS Server Intel(R) Xeon(R) CPU X5670 @ 2.93GHz 12 Cores MySQL 5.5.29 64 GB RAM RAID10 We are currently doing Hyperthreading ...
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2answers
1k views

Mysql Server Login and Permission Deny Error

I have a problem with MySQL server. After upgrading MySQL server from 5.3 to 5.4, I am not able to log-in using my MySQL root password (Yes, I am able to log-in without password!). Also not able to ...
2
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1answer
125 views

Mongodb replica sets: why does my master server occupy more disk space than my slave?

I have two servers on my replica set. Let's call it the master and the slave, for the purpose of this discussion. The master was the original one, and the slave was replicated from that master. At ...
2
votes
1answer
122 views

Problems restoring backup from base backup + WAL with WAL-E

I'm trying to do nightly restores of the main database on a separate node. I want to do weekly full restores and nightly restores by consuming the latest WAL files. On the master I have wal_level = ...
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0answers
17 views

Using Database Replay between AIX/Power7 and Linux/Intel - Potential Issues? [closed]

I'm planning to do a DB migration from AIX+P7 to Linux+Intel. We want to do a performance analysis between the platforms. However the database is massive, and before we commit to procuring the ...
0
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2answers
161 views

MySQL - prevent OS cache for query

On high load production server I have many sql selects which are unique or re-use will be in hours. I use SQL_NO_CACHE but this queries are still cached with OS cache. Server have 64G ram and used ram ...
0
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1answer
386 views

How much RAM for a large database on a dedicated MySQL InnoDB server?

Hereunder my hardware config: CPU: 1x Intel Xeon X3470 Quad core @ 2.93GHz RAM: 4x 8GB DDR3 Disks: 2 x SATA 320GB for the system & 4 x SAS 300GB for the DB I've upgraded from 12Gb to 32Gb and ...
2
votes
1answer
516 views

Trouble with installing additional modules on Postgresql 9.1 on ALT-Linux

I'm trying to create extension under postgresql 9.1 (Linux): CREATE EXTENSION pg_trgm; but got error: ERROR: could not open extension control file "/usr/share/pgsql/extension/pg_trgm.control": No ...
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0answers
7 views

MonetDB auto-backup mechanic problem

I'm trying to set up mechanism that will automatically create database backup. The idea is to create a script that will be executed by crontab. Seems easy but I'm struggling with the following ...
0
votes
1answer
895 views

configure: error: SQLite3 library not found

I'm getting the below configure error while doing the install the Zabbix reporting tool on Linux. i have tried both Versions(zabbix-2.0.9,zabbix-1.8.17), but getting same issue. Log: checking for ...
0
votes
1answer
198 views

Spool in Shell script not working for me

#!/bin/sh echo "Started at" `date +%Y/%m/%d" "%H:%M:%S` sqlplus -s ${ORA_LOGIN_SYSADM} <<EOF 2>&1 > /dev/null SET SERVEROUTPUT ON SET FEED OFF spool ech.txt create BEGIN ...
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vote
2answers
1k views

mysql.sock not found on CentOS 7 machine

I am getting the following error when I try to log into mysql from the CentOS 7 terminal of the machine where mysql is installed: ERROR 2002 (HY000): Can't connect to local MySQL server through ...
1
vote
1answer
1k views

MySQL slave stuck at 'System lock' most of the time, high CPU usage

Let me describe what we are facing now: We have a MySQL Master-Slave, Row Based Replication setup and at the moment, the slave is stuck with a perpetual System Lock. The Master is an active server ...
1
vote
1answer
156 views

MongoDB installation Ubuntu 12.04 LTS errors

I need some help with my MongoDB installation on a clean, fresh Ubuntu 12.04 LTS server with no nonsense installed. I thought it would be a piece of cake, but I got some errors and the Ubuntu-forums ...
1
vote
1answer
119 views

How open oracle DB Linux (After installation)

I have just installed Oracle 11gR2 on my Linux Mint Distro (xfce). All worked fine, and I was able to acces to https://localhost:1158/em [Erreur 102 (net::ERR_CONNECTION_REFUSED) ] I rebooted my ...
0
votes
1answer
467 views

MySQL workbench: Cannot Connect to Database Server (ssh)

General pointers would be appreciated -- it's likely I'm misunderstanding the mechanisms involved in a remote connection through ssh. I can use ssh to connect remotely, and then, through the CLI, ...
0
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2answers
1k views

postgres service suddenly not working after the computer crashed while working

I've been working with postgres on a linux server for the last couple of months. Last week, half of our servers crashed and my one with them. I was in the middle of uploading data to the postgres ...
0
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1answer
233 views

ORA-04031: unable to allocate 32 bytes of shared memory

I want to flush shared pool because of error like ORA-04031: unable to allocate 32 bytes of shared memory So I want to flush shared pool using alter system flush shared_pool; Connected as ...
2
votes
1answer
21k views

Error ORA-12560 when trying to connect Windows SQL*Plus client to Oracle 11g Linux server

I installed 11g on Centos VM on my mac.I have everything up and working on server.I have included following command I ran on cenos. $lsnrctl status LSNRCTL for Linux: Version 11.2.0.1.0 - Production ...
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2answers
48 views

MySQL Monitoring Script in Shell or Perl for Linux

I need a MySQL Monitoring Script in Bash or Perl for Linux. I found some but they are quite big with a lots of checks that are not useful at all for me and in this case I should customise the ...
0
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1answer
142 views

Cannot start MySQL service on linux RHEL when pointing datadir to mounted ecryptfs folder

I moved the data directory for MySQL to an ecryptfs encrypted folder. When I run service mysqld start as root, the service will not start. [Warning] Can't create test file ...
0
votes
1answer
26 views

Intermittent “access denied” (1045) message from MySQL

I'm importing a fairly large (100GB+) database from MySQL to PostgreSQL using pgloader. After a seemingly random amount of time the process dies with the following error: An unhandled error condition ...
0
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1answer
436 views

Unable to create Central Inventory

I am Traying to install Oracle 11g on my Linux a have alrady config the varible and X-host but can,t able to Create Central Inventory my Central Inventory location is : /u01/app/u0 ** and ...
0
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2answers
52 views

In mongodb, is “sh.getBalancerState() is false” the same as “sh.isBanlancerRunning is false”?

During upgrading config servers to use WiredTIger, I stopped balancer using sh.setBalancerState(false), and then I run sh.getBalancerState(). The output is false. Does this mean the balancer is not ...
0
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1answer
39 views

I want to start the Postgres database

I run this: $ postgres -D foobar It just hangs. There is no error message. I newly created this database with the initdb command. What should I do?
0
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2answers
400 views

How to create and start a PDB for RCU in Oracle 12c

So I've made a fresh install on a virtual machine based on OEL 6.5 x64. All my installs are in /opt/apps I installed a Oracle Database 12c, with the Desktop Version selected (not server), UNICODE ...
0
votes
1answer
357 views

Report Builder cannot publish to report server

This is currently in a cloud lab environment. We're not allowed to join any AD domains. We have a linux server (RHEL 6) running MySQL 5.3 and a Windows SQL Server 2012 on Win 2k8 R2. Our laptop is ...
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3answers
103 views

Reset of root password not working?

Our previous DBA left and didn't note the root password down, and I've been pressganged into doing part of his job until we can hire someone. So I create a file : /root/mysql.password Inside that ...
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0answers
17 views

Memory consumption of production MySQL

The MySQL database on one of my production servers consumes a lot of memory. The problem is that I cannot trace what causes that kind of high memory usage. Following values illustrate the problem. ...
0
votes
1answer
37 views

How to create oracle user for more than one version

I have server under RHEL 6.3 installed on that server Oracle 11gr2 and 12c, I want to create user lets say Ahmad but I want this user to be sysdba on both servers, for single server I edit ...
0
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2answers
217 views

Make Oracle backup files available for duplicate

I have a Red Hat Enterprise Linux server with Oracle 10.2.0.5 and a database on it (SID is TNATEST). I have a remote CentOS server with Oracle 10.2.0.5 on it that I want to duplicate TNATEST to. The ...
1
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0answers
34 views

postgresql + pgbouncer, idle server and high cl_waiting

I have such a setup: OpenSUSE 13.1 64-bit Linux kernel 3.11.10 PostgreSQL 9.0 + PgBouncer 1.5.4 (libevent-2.0) 16 core AMD, 128 GB RAM PostgreSQL config: max_connections = 1500 shared_buffers = ...
0
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0answers
14 views

how to install lib_mysqludf_xql?

Can any one provide me a steps how to install lib_mysqludf_xql? OS version is REHL 6.5(64 bit) and MySQL version is 5.5.27 we installed MySQL with the source code.
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0answers
19 views

How do I dump my DB without creating temporary files?

My system is showing disk problems, and linux turned my root folder to read-only. Before I reboot, I wanted to backup my mysql DB, just in case I can never access it again after rebooting/checking ...
0
votes
1answer
295 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 ...
1
vote
1answer
1k views

MySQL Workbench Cannot start SSH tunnel manager

I don't know why this error is happening when I try to connect by MySQL Workbench. Cannot start SSH tunnel manager. I'm using slackware 14.1 and installed all dependencies. I already installed the ...
3
votes
1answer
79 views

Sharing PostgreSQL database on one dual-boot machine without duplication (cross-platform)

I have PostgreSQL 9.4 installed on a dual-boot machine (both on Win 7 and Ubuntu 14.10). The two systems share a drive (NTFS-formated) which includes a PSQL database directory which was created under ...
0
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0answers
36 views

Can't auto-start db2 with db2iauto

Followed guide Auto-starting instances . [root@oktest-stage-db-1 ~]# db2greg -getinstrec instancename=db2inst1 | grep -i startatboot StartAtBoot = 1 [root@oktest-stage-db-1 ~]# ...
1
vote
1answer
1k views

mysqld dead but subsys locked

I'm executing the following command in a shell script and I'm executing this on an RHEL-6 server and MySQL version 5.1.47- mysqld_safe --defaults-extra-file=/custom/path/of/my.cnf The path of ...
0
votes
1answer
23 views

Ubuntu broken need to recover mysql db

With a recent Ubuntu upgrade it has broken my system. I now only have access to the filesystem through a live CD. I had a MySQL database on the system with many objects and views I would hate to lose. ...
1
vote
1answer
440 views

Install Access Database Engine on Linux Centos [closed]

I want to read mdb file from linux centos. To read that file, we must already install access data engine. Is there any access data engine for linux? Now I'm using mdbtools to configure ODBC connect ...
0
votes
1answer
39 views

MySQL table doesn't exist

What I did before the disaster was: vi /etc/my.cfg I added innodb_buffer_pool_size=4G innodb_buffer_pool_instance=2 innodb_read_io_threads=12 innodb_write_io_threads=12 innodb_io_capacity=300 ...
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votes
2answers
18 views

How can I create Data Base on phpMyAdmin?

I have a serious problem here. I am not able to create data bases as the option is not to be found on my phpMyAdmin, but it only shows 'No Privilege' in red font. I even tried to create data base ...
6
votes
3answers
8k views

How to 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 (and some other *nix environments) by default. Now, I want to make MySQL work as case ...
0
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3answers
91 views

MySQL Exporting a query to text file via Cron Job

I'm in the beginning stages of hacking together code that syncs two completely different pieces of software/webware. I'm looking for a way to run a SQL query and output the results to a text file. I'd ...
4
votes
3answers
614 views

TNS-12541 Error

I have grid installed in my pc but the problem is LISTENER does not start automatically. I have to start listener manually and then only LISTENER get started. But before starting listener if you check ...
17
votes
3answers
35k views

Safest way to perform mysqldump on a live system with active reads and writes?

I'm not sure if this is true but I remember reading if you run the following command in linux mysqldump -u username -p database_name > backup_db.sql while reads and writes are being made to a ...