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

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Heartbeat Options with MySQL and Possibilities

I would like to understand if the following scenarios are possible in Heartbeat in Linux. Setup: Two Database Servers running Mysql in Active/Passive mode in replication mode having Heartbeat setup ...
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2answers
66 views

ORACLE Shifting from from one version to another

I have RHEL5 server with Oracle Home actual location is SAN, which is mounted on this server. Now for few Reasons I have one more Server with RHEL 6 64Bit. I will map those storage LUNS there. What ...
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49 views

MySQL import low use of resources

I'm importing a largish DB into MySQL (20tables of ~25mill records). As expected this is taking a long time, but I'm curious as to why the process is running using only 0.000 to 0.700 %CPU and 0.87 ...
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1answer
27 views

How can I create DB2 objects with Linux SUDOer authority?

All, I am relatively new to Red hat linux and I have SUDOer authority but unable to create DB2 database or other objects. How can I accomplish this task? Please give examples. Also, is there any ...
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40 views

Couldn't connect to databasee

I have a dedicated webserver and a dedicated database server Often , i got errors connecting to database server couldn't connect to database Here is my current /etc/my.cnf configuration file ...
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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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41 views

Probable database replication issue in LAMP setup with Master/Master MySQL replication

I have been facing issues in my high availability failover (on WAN links) LAMP setup hosting a Drupal CMS based site, approximately after every 2 months both servers suddenly stop responding to http ...
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40 views

What is the “Other” Memory Pool in DB2 LUW?

I have a Memory Pool consuming the better part of my server's memory, but I can't seem to find any proper documentation on what this Memory Pool actually is for. What is the "Other" Memory Pool in ...
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1answer
358 views

Oracle silent install on Redhat Linux (The Global database name was left blank.)

I am installing Oracle 11g in silent mode using the response file that is in the database/response directory. It is three response files in that directory(i.e. dbca.rsp, db_install.rsp and netca.rsp). ...
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241 views

How to set selinux permission for non-standard mysql bin log path?

By default, mysql bin log works in folder /var/log/mysql. but moving to any other share such /mylogs/mysql gives permission error. Below is the exact message: usr/sbin/mysqld: File ...
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2answers
83 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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71 views

Does using noatime on modern Linux make sense?

Starting from version 2.6.30 (which was released 5 years ago), Linux has the option relatime enabled by default. It means updates of file access time are very infrequent and prudent. But I still see ...
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158 views

Huge load on CPU because of mysql process [closed]

I am getting a huge load on my linux servers because of this query. CPU is on 500% load & this query is causing load. /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql ...
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132 views

MySQL gets slow in Linux server

I'm using a jdbc connection to connect a vaadin application to a MySQL database. It works fine, but after a couple of uses it gets really slow, and even freezes the application to a point I have to ...
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3answers
3k views

Counting postgres open connections without SQL query or connecting to postgres itself

For a monitoring script I need to count the number of open connections to a postgres database. This is done easily enough by opening up a client connection and running a count on the pg_stat_activity ...
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1answer
70 views

Please tell me my data isn't gone… lie to me even

In a moment of ignorance I setup my webserver to auto backup all data to another machine. not a problem except I just mearly cp -R /var/lib/mysql so all I ended up getting was hundreds and hundreds ...
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825 views

sqlldr: command not found

I have a script which has this command 'sqlldr' which gives me the error sqlldr: command not found when I run this script. I googled and found that people say that this command should be there in my ...
2
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1answer
980 views

Mysql error 28 no space left on the device

I keep running in to the same problem with mysql with error code 28 which means there is not enough space left on the device. Now the weird part is that there is enough space, here are some tips i ...
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1answer
114 views

Poor SQL performance with raid10

Maybe I'll try my luck here. Server Fault site was quite hostile for non-professional server user. I recently bought HP ProLiant ML310e Gen8 v2 server with 8G's RAM and 4 HP 1TB 6G 7.2k rpm SATA ...
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1answer
772 views

Can I execute an external process via MySQL on table change?

When using triggers, if an update is done to a table then a trigger is executed. This is very convenient. But what I would need is to execute an external script. Is it possible to configure MySQL ...
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343 views

Postgres Backup on linux server [closed]

I am trying to take backup of postgres from InstallAnyWhere which is installer for linux and windows machine. I am calling pg_dump from Java process builder as command line below cmdLine: ...
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2answers
3k views

mysql multi threading for a single query

I have big db of size 8GB and having 9 million contacts in this db. When we try to retrieve all contacts, it takes nearly 1 or 2 hour (in some cases result in timeout) to retreive all contacts for the ...
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2answers
568 views

PostgreSQL - pgAdmin error creating a server

I have the latest versions of PostgreSQL and its GUI-frontend, pgAdmin, installed. When I try to register a new server a fatal error appears when pgAdmin tries to connect to the newly created server - ...
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2answers
84 views

Why its failed on linux server?

I tried to mark disk and got Fail!!! [root@oradbserver3 Server]# /etc/init.d/oracleasm createdisk DISK1 /dev/sda2 Marking disk "DISK1" as an ASM disk: [FAILED]
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1answer
316 views

web interface port for oracle 11g

I am running a fresh Oracle 11g installation created on lunix redhat 5, but I forget the web interface port, I have already tried this https:// localhost:5500/em/ but did'nt work. any help will be ...
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1answer
137 views

Kerne module for Oracle 11gR2 RAC on Linux

As per Oracle, it requires three Linux packages to run ASMLib: oracleasm - kernel module oracleasmlib-2.0 - ASMLib libraries oracleasm-support-2.0 - Admin for ASMLib This library versions are OS ...
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42 views

How do I save file data to my newly mounted SSD in mysql innodb continually?

I've recently mounted a new SSD since my disk's empty space had less than 10% (mysql unbuntu linux) and this is what I did in my.cnf file to save data to my new path: innodb_buffer_pool_size=2G ...
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1answer
541 views

MySQL Service is not starting on linux

I am having a problem with my database it does not want to start :( the server is running on linux centos 6.2 it was working until I emptied the logs I don't know if this have anything to do with ...
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232 views

InnoDB: error: space object of table

131212 10:35:18 InnoDB: error: space object of table 'main/wp_m_membership_levels', InnoDB: space id 119 did not exist in memory. Retrying an open. 131212 10:35:18 InnoDB: error: space object of ...
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1answer
24 views

Change MySQL 4.1 Windows to MySQL 4.1 Linux- Problem with the key Sensitive in query

I need help to resolve this problem. change the server MySQL 4.1 run on Windows to MySQL 4.1 run on Linux(debian). This all working, but same query not return the correct data because key ...
1
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1answer
605 views

Grant postgres superuser to linux account

On my development (Ubuntu linux) laptop I have a postgres OS account, which owns the Postgres installation. When I want to perform any postgres activities, create/drop databases etc, I must first su ...
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2answers
2k views

MySQL on Windows or GNU/Linux?

I've just read this article: http://dev.mysql.com/tech-resources/articles/move_from_microsoft_SQL_Server.html There it says that MySQL on Windows is a good choice. (or is what I've understood) In ...
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1answer
2k views

MySQL - Server collation utf8_unicode_ci vs table collation utf8_bin: compatibility and performance

I'm not sure whether this belongs to SE DBA, but it sounds more logical ... Our MySQL 5.5.32 on Ubuntu 12.04 64 uses utf8_unicode_ci for the Server collation and some tables, like phpBB3, uses ...
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1answer
451 views

TCP sockets bottleneck with InnoDB/Debian?

We have a big mysql performance issue on a production environment with 18 "front" servers sending mysql queries to a unique mysql server. We are using Redis on each front server for a number of ...
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3answers
11k views

Oracle client throwing ORA-12541: TNS:no listener

when i was trying to connect my remote server as- sqlplus SYSTEM/oracle@192.168.0.171:1521/kannel it shows me this error- SQL*Plus: Release 11.2.0.2.0 Production on Fri Nov 15 15:36:52 2013 ...
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3answers
149 views

Best practice to query administrative views for instance level elements

I want to query a monitor element at instance level (for example the memory used for the instance) via a query like this: SELECT MEMBER, MAX_MEMBER_MEM, CURRENT_MEMBER_MEM, PEAK_MEMBER_MEM FROM ...
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1answer
71 views

Are databases only growing in size?

Databases use the file system to store the data. As far as I know it is not possible to delete a record from a random access file. So does that mean that when we do a DELETE FROM TABLE the size of the ...
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314 views

Oracle Installation issue on Oracle Linux 6.4

I am trying to install Oracle 11g(11.2.0.1.0) on Oracle Linux 6.4(Remote Server). I get the following error(s) when Database Configuration Assistant is running ORA-01092: ORACLE instance terminated ...
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2answers
321 views

Importing MySQL database using Linux Terminal

I have an existing database, named dlti.sql I want to transfer it to a Linux-based server. I tried using this code, however I get no response: mysql -u root -p Desktop < dlti.sql The .sql file ...
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1answer
78 views

How can I run a PostgreSQL outside the standard directories on Linux, ie outside /var/run/postgresql etc?

I need to be able to run PostgreSQL databases outside the standard installation directories, ie run the existing postgres or pg_ctl process pointing to the alternative ports, configuration and data ...
1
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1answer
130 views

command line tool on linux to convert oracle sql into db2 sql

IBM has a GUI based tool to convert Oracle SQL into DB2 SQL. Is there a command line tool (preferably on linux) that does the same thing? The reason being, we want to do this work as part of a ...
1
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1answer
104 views

creating 2 database at the same time in db2

Do you know whether it is safe to have in one shell user db2inst1 creating a database A and having another shell the same user creating at the same time database B? create database A # shell 1 ...
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1answer
623 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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0answers
85 views

ORACLE_HOME is not available

I install Oracle 11GR2 on Cenots 5.9 . i edited bash_profile to correct values for ORACLE_HOME and ORACLE_BASE and etc . But when i want to run SqlPlus , " command not found " is shown . but when i ...
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2answers
3k views

Entering command 'sqlplus' results in 'sqlplus: command not found'

I've recently installed Fedora 19 on an older PC, to serve as a test server of sorts. After a lot of hiccups, I was able to install Oracle 10g XE. Because I'm using Linux - which I, admittedly, have ...
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1answer
684 views

Install Oracle 11gR2 driver for Node.js 0.10.20

I want to connect Oracle 11gR2 and Node.js 0.10.20. I use this package but I don't understand this part of installation process. Can you explain it to me? # Replace /opt/instantclient_11_2/ with ...
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73 views

How do I debug an Oracle Linux Diskspace Issue?

I have about 429GB Diskspace allocated to this VM. I see that only 179GB is being used. Now when I try to add a 128GB file I get an I/O error saying I do not have any space left. I need to be able ...
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2answers
257 views

Backup Oracle DB using TSM server version 6.3.0

I'm new to Oracle and TSM server. I installed Oracle11gR2 and TSM server version 6.3.0 (linux Centos 6.4 OS). I did the configuration and everything works fine. so far I arrive to run the following ...
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3answers
896 views

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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1answer
128 views

MongoDB cloneCollection between CentOS servers times out at 2 hours

I'm trying to clone a MongoDB collection from CentOS server A to CentOS server B. Both are running 2.4.6. The copy works great until exaxctly 2 hours, at which point I get a 9001 socket exception: ...