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

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Moved a MySQL Database to another server, but socket keeps pointing to localhost

I know I shouldn't bother with this, maybe I should disable the old mysql, but this is a Magento virtual appliance from Bitnami thats work as a whole (application and database on the same server). I ...
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2answers
544 views

Unable to create Central Inventory

I'm trying to install Oracle 11g on Linux and have already configured the variables and X-host but can't able to create Central Inventory. My Central Inventory location is /u01/app/u0 and group name ...
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2answers
2k 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 ...
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2answers
2k 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 ...
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4answers
462 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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1answer
2k 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 ...
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1answer
765 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, ...
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1answer
23 views

Some tables not found after moving MySQL database from Linux to Windows

I had a MySQL database which I was working with from Linux. Some of the schema/table names were in mixed case. I then needed to work with the same database on Windows, but because of the enormous ...
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1answer
175 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 ...
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1answer
47 views

MySQL (MariaDB - 10.0.16-MariaDB-1 (Debian) strange performance issues

I am running version 10.0.16-MariaDB-1 (Debian GNU/Linux 8.1 (jessie)) on Dual Xeon CPU, total 32 cores with 128 GB of RAM. This is a dedicated DB server and has been recently migrated over from ...
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1answer
17 views

Package Check Failed: Oracle DB 11g on RHEL 7

Trying to install Oracle DB 11g EE on RHEL 7. Installed the necessary packages as mentioned in the below link (Section 6.1). But I am stuck at the package check step, which fails because it couldn't ...
0
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1answer
349 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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2answers
53 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 ...
2
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1answer
59 views

MySQL Memory & max_connections Performance Tuning

So, our site runs WordPress and in the past few days we have been getting tons of spam comments etc. I believe that we are becoming the victims of some kind of bot army that has been crashing our ...
1
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1answer
174 views

How to restore database from /var/lib/mysql

I have a database folder from a crashed server called gain_wordpress. I'm trying to put that database on a new server but I'm not able to do it successfully. I don't have a .sql dump, all I have is ...
0
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1answer
325 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 ...
2
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1answer
201 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 ...
0
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1answer
995 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 ...
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1answer
143 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 ...
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1answer
352 views

Lost connection to mysql?

We're receiving the following error on every 1 hour. Lost connection to MySQL server at 'reading initial communication packet', system error: 115 "Operation now in progress" Any clue ?
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2answers
34 views

MySQL : How to restore mysql dump (.sql) ignoring DROP TABLE statement?

I am trying to restore multiple mysql dump (.sql) files. Data in each dump file are from the same table, but with different ID (primary key) range. For example, > 1.sql (0 < ID && ID ...
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0answers
52 views

Oracle Performance on 2 servers

I have the same database on two different servers(production and test) with major differences in query time as follows: Query1: SELECT distinct dms_get_FAST_serverpath(d.id) full_name FROM ...
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1answer
394 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 ...
0
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1answer
37 views

Cannot Start mySQL Daemon with Error “mysqld from pid file … ended”

I cannot get MySQL to run. It was working just fine hours ago, but upon starting, repeatedly ends without telling me very much. Here are my logs [myusername@location ~/mysql]$ ./bin/mysqld_safe ...
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3answers
114 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 ...
1
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1answer
2k 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 ...
1
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1answer
34 views

Can't create file /var/lib/mysql/user.lower-test

MySQL database has been problem free for a few months. Today when I checked for upgradeable packages using the Synaptic Package Manager it came up with the various MySQL components (-common, -client, ...
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2answers
236 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 ...
2
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1answer
45 views

How to download Oracle Database 11g release 2 for Mac OS

I have been trying to download Oracle Database 11g release 2 for mac os but in the given link by oracle I can only see Linux x86 and Linux x86-64. Is this ok to use this Linux file for installing ...
1
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1answer
685 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 ...
1
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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 ...
2
votes
2answers
77 views

sqlplus (Oracle XE) doesn't start on CentOS 7

I followed the steps of this document: https://docs.oracle.com/cd/E17781_01/install.112/e18802/toc.htm#XEINL121, but sqlplus doesn't start. Even if I used the command: "sqlplus /nolog". The other ...
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3answers
211 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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2answers
3k 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 ...
0
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1answer
41 views

New Master-Master replication has stopped working

We're building a new MySQL server pair for high availability, and of course it's not like managing a single server. We're working with Ubuntu 14.04 LTS and MySQL 5.5.43 I had master-master ...
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2answers
3k views

MariaDB Galera Cluster Replication error, no state received?

I have a very minimal, fresh out of the box setup for MariaDB with Galera clustering. My master node of the cluster is able to run, and is reporting that there is only one node attached to the ...
0
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1answer
30 views

Unable to create replica set for MongoDB in Linux

When I run the following command: rs.initiate(), I get the following error: "info2" : "no configuration explicitly specified -- making one", "me" : "ip-10-0-2-113:27017", "ok" : 0, ...
3
votes
2answers
153 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
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1answer
603 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 ...
3
votes
1answer
219 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 = ...
0
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0answers
32 views

Oracle 11g installation on fedora 20 - stuck at step6 - Oracle-base.com installation procedure

I am trying to install Oracle Database 11g Release 2 (11.2.0.1) On Fedora 20 (F20)Oracle 11g in my laptop and I am following the steps provided in this Link But it is getting stuck after step 6. Can ...
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2answers
269 views

mysql does not start: error 13 on bin file (permissions are set correctly)

I just renamed the hostname and rebooted the server and now mysql 5.6 wont start. (debian 7 + dotdeb) 150312 20:40:15 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql.mnt ...
0
votes
2answers
187 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 ...
1
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2answers
2k 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
555 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 ...
1
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0answers
120 views

Failed to create voting files on disk group DATA

I has install Oracle RAC 11.2.0.3 on Oracle Linux 6.6 for 2 node. When install clusterware to step excute root.sh had got error below. Can you help me check how to fix that and what wrong while ...
1
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1answer
31 views

Moving postresql 9.1 database - live

This question has probably been asked and answered before, and if so, I would appreciate if that could be pointed out to me. I have googled this point quite a bit, but I want to be very sure as to ...
1
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1answer
18 views

How to reinitialise /var/lib/mysql files?

Due to a mishap I deleted the entire /var/lib/mysql directory. Since the database did not contain anything important, I do not want to go through the hassle of restoring it from an old backup, but ...
5
votes
1answer
14k views

Cannot output MySQL data to file

I am trying to output the data from an MySQL table to a file but getting permission errors: $ pwd /home/dotancohen $ mkdir in $ chmod 777 in/ $ mysql -ugs -p mysql> USE someDatabase; mysql> ...
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0answers
735 views

How to Change location of postgres cluster and database within the same machine? [duplicate]

I have my present database cluster of postgres at /mnt/my_hard_drive which I want to change to /home/myfolder. I also want to move all my databases present in the present cluster to /home/myfolder. Is ...