The choice of settings for hardware, firmware, software or other components of a database system.

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1answer
763 views

Oracle Enterprise Manager Installation

First I install oracle 11g database with this configuration Step 2 of 9 I selected Create and configure a database Step 3 of 9 I selected Desktop Class Step 4 of 8 Global database name: Blitz ...
2
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2answers
74 views

Moving DB Log destination?

I currently have SQL DB and Log files going to the same drive. I would like to move the Log files to their own drive. Is there an easy way to achieve this and will it require downtime/reboot of the ...
0
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1answer
479 views

SQL Server starts normally from Windows Services screen, but shows error through SQL Server Configuration Manager. Why?

I have a SQL Server 2005 instance that has worked fine for years. There have been no changes that I am aware of. Recently, I found that if I stop and then start the instance in SQL Server ...
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1answer
17 views

Restore of db's on local locks me out of accessing other sites

Running my local dev websites on my Mac locally and when I am restoring a database via terminal, which the restore is running I cannot access anything that uses mysql, I get a broken pipe notice. Is ...
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2answers
4k views

How to force higher values of open_files_limit or table_open_cache?

I'm having a frustrating problem where setting my.cnf to values higher than I currently have them does not 'take'. This is MySQL 5.6.14 on MacOS X 10.8.3 I'm trying to address dropped connections ...
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4answers
2k views

Make SqlClient default to ARITHABORT ON

First things first: I'm using MS SQL Server 2008 with a database at compatibility level 80, and connecting to it with .Net's System.Data.SqlClient.SqlConnection. For performance reasons I've created ...
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0answers
30 views

MongoDB does'nt starts after changing the data directory

I have installed a mongodb instance using yum..Now everything works fine.I started the service using service mongod start,it works good.Then i changed the data directory and log path in the ...
2
votes
1answer
97 views

When upgrading config servers to use WireTiger, the running config server with wiredtiger does not authenticate the existing pass and user?

In order to upgrade mongodb to 3.0.0, I am upgrading my config servers to use WireTiger. I followed the subsection of Change Config Server to Use WiredTiger. There are 18 steps. I run mongodump --port ...
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2answers
118 views

Tuning Postgres for Single connection use? Or is postgres wrong tool?

Any rules of thumb for work_mem, maintenance_work_mem, shared_buffer, etc. for a database that DOESN'T anticipate concurrent connections and that is doing lots of aggregate functions? I'm a social ...
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2answers
1k views

Error changing mysql 5.6 default port

I've changed my.ini with port=3308 but after restart the service mysql 5.6 is working in the same default port 3306. I've tried in mysql 5.5 and it worked fine. C:\Archivos de programa\MySQL\MySQL ...
2
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2answers
93 views

Current SQL Server services configuration

I know I can use SQL Server Configuration Manager to determine 1) Which services are currently running and 2) which services are set to auto start. However, I have several dozen servers I manage. I'd ...
2
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2answers
46 views

Is Policy-Based Management dead? Is it scalable?

Policy-Based Management was introduced in SQL Server 2008. I'm looking for software/tool I can use to enforce configuration standards across a SQL Server 2012 /2014 database environment. Instances ...
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0answers
14 views

Creating mysql config setting per database

I am trying to setup MySQL so one database auto increments by 2. I am using the auto_increment_increment variable in my.cnf configuration file, but this is being applied to every database. I would ...
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0answers
45 views

MySQL: SELECT GET_LOCK slow/timeout

I am using "Zebra Session" as a replacement for PHP's built-in session management. Zebra Session stores sessions in a MySQL database, and uses "session locking" in order to ensure that data is ...
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0answers
15 views

How to transform Streaming Replication Master-Slave to Cascaded Master-Slave1-Slave2 setup?

I've setup streaming replication as part of HA solution on my production enviroment. I've two ubuntu servers PROD1 and PROD2. PROD1 is master and PROD2 is slave. In case of failover the slave database ...
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1answer
48 views

Can I reduce MySQL memory usage, or do I need to add more RAM?

I have a VPS with 2.25GB of RAM. MySQL is using 1.4GB with only four users on my site right now. It seems to use this amount even when no users are online. The available memory of my server regularly ...
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0answers
52 views

MySQL 5.6 and MariaDB extremely slow

I have MariaDB 10.0.15 and MySQL 5.6.0 (compiled and running on different port) on my server (Debian Wheezy). I have also MySQL 5.5 installed. I have tried import of large database, but I have found ...
1
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1answer
24 views

Recommendations for my.cnf on MySQL Replicant

I have replication environment running in a master-slave configuration. The replicant is doing all writes and doing selects only very rarely - and none in which high performance is a requirement. ...
0
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1answer
32 views

SQL Server Service's Log On As account

I just inherited a set of new servers and whoever set them up left the "Log On As" account as the default "NT Service\MSSQLSERVER". I'd like to change that over to an Active Directory service name. I ...
1
vote
1answer
407 views

exception: hosts cannot switch between localhost and hostname

I created a replication set. I added localhost in the set in the beginning, but when I try to edit the member with the actual hostname. I get error "exception: hosts cannot switch between localhost ...
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0answers
155 views

Mariadb on Centos 7 not changing max connections based on my.cnf

The following configuration in my.cnf is not being followed. Max_connections go back to 151. please help as i have 16gb of dedicated ram that i would like to use properly. [mysqld] ...
2
votes
1answer
775 views

SQL Server service account Windows privileges and rights

My question is, if you create a new domain user account for each of the SQL Server processes, what permissions should be set for each account? Or does the SQL configuration manager actually take care ...
0
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1answer
48 views

Help with MySQL my.cnf config

So I'm running MySQL on a high availability cluster with the MySQL data directory on a GlusterFS. I want to: - Disable the query cache (--query-cache-size=0) - Switch on external locking ...
1
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1answer
84 views

Mariadb refusing to read values on the my.cnf file

today i was optimizing my mariadb since my website was running too slow My machine is a Centos 7 , 4 gbs ram 3 cpu i runned a script called mysql_tuner.pl and the results were: -- MYSQL ...
6
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3answers
5k views

save/export PGAdmin server list configuration settings

I have a ton of configured connections listed in the Server Groups, is there a way I can save this? not just save the passwords but the Server Group Settings
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1answer
135 views

How to add setParameter in mongod config?

When I am using setParameter in mongod config, I start mongod with error: Unrecognized option: setParameter = enableLocalhostAuthBypass=1 How can I use setParameter from config file ? P/S: I am ...
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0answers
67 views

Why mongod said “note: noprealloc may hurt performance in many applications”?

I just start mongod with config file: mongod -f /etc/mongod.conf In /etc/mongod.conf, I set storage.preallocDataFiles=true This is a part of config: storage: dbPath: "/data/db" ...
4
votes
2answers
259 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 ...
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2answers
4k views

Create database fails with Microsoft SQL Server Error 5133, Operating syste, error 5 (Access is denied) [closed]

I just installed SQL server 2012 on Windows 2012 today. After the install, I changed the database settings to create database files in f:\mssql instead of the default. i verified the confired and ...
3
votes
1answer
116 views

Trace Flag 3688 not working on SQL Server 2014

We are using some third party tools that fill up the SQL Server logs with entries like: SQL Trace ID 1 was started by login "sa". SQL Trace ID 2 was started by login "XX\xxxxx". SQL Trace stopped. ...
0
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0answers
43 views

What should be the ideal network configuration for a Postgresql Streanming Replication and PgPool HA setup

I have the following configuration using Pgpool, Postgresql with streaming replication. Pgpool is used for load balancing and automatic failover. .-----. .--------. | | ...
5
votes
1answer
585 views

What fillfactor for caching table?

I have heavily updated / accessed table where I store serialized java objects. They are in the table for 2-3 hours (also are being updated during that period) and then removed. Size of table is around ...
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2answers
2k views

Oracle Database 12c on Oracle Linux 7 - autostart, enabling connection as sysdba

I've installed 12c on Oracle Linux 7 for my development work, as per document Oracle Database Installation Guide 12c Release 1 for Linux (E41491-10). My previous experience with administering Oracle ...
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0answers
39 views

Required Information to start oracle warehouse builder

I am using windows 8 64 bit . I want to install Oracle Warehouse Builder on my system. I have installed Oracle 11g and come to know that Warehouse Builder is already a part of it. But when I start ...
2
votes
1answer
106 views

SQL Hard Drive Config?

I am setting up new server and am a little confused in my research of HD configuration. My main question is : Is it recommended to have the Trans Logs and DB logs (ldf) on separate spindles or can ...
0
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1answer
20 views

Error on mongos server

Firstly,I am new to mongodb. when we executed the below command on mongos server. /usr/bin/mongos --configdb X.X.X.1:20001,X.X.X.2:20002,X.X.X.3:20003 --port 27017 --chunkSize 1 we are getting the ...
3
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4answers
761 views

SQL Server 2008: how much RAM memory should SQL Server use in a 8GB RAM server?

We have SQL Server 2008 and 8GB RAM in a customer, hosted in a Windows 2008 R2 SP1, and consider the following amount of free memory: and consider the following running programs: Scenario: ...
0
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1answer
186 views

Mysql Server 5.6 Mysqld high memory consumption

I have MySQL Server 5.6 installed in a development machine with these specs: RAM: 4 GB Windows 7 Professional 64 bits Intel Pentium CPU G630 @ 2.70 GHZ Since I installed the MySQL Server, the ...
6
votes
2answers
655 views

Transaction speed benchmarks for mySQL v5.6 replication - seems very slow

I'm trying to select the best configuration for our new infrastructure but got a bit confused about the results. I used sysbench v0.5 for the tests: prepare data sysbench ...
1
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1answer
41 views

Mathematical or Computing Alternatives for MySQL Combination Queries operating toward their Performance Limit

We regularly run a contest that is becoming quite popular. In the contest, we need to select the combinations of contestants from 8 groups whose cost is under a threshold, and who combined have the ...
2
votes
1answer
5k views

PostgreSQL isn't listen on 5432 in Windows 7 [closed]

I have a PostgreSQL 9.3.1 DB Server running in Windows 7 Ultimate. I have checked the file postgresql.conf and this lines are uncommented: listen_addresses="*" port=5432 And this is the ...
0
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0answers
84 views

pgpool authentication failed when use syslog in log_destination

When I configure in pgpool.conf file: log_destination = 'stderr' pgpool run ok, but when I use this configuration: log_destination = 'syslog' I get this error: pgpool pgpool[21477]: pcp_child: ...
1
vote
2answers
348 views

Very high load avg for MySQL database [closed]

I have a backend server which response to my clients app, it has more than 20k~25k hit per second and this make my server load average very high, I believe that my MySQL config is not appropriate. In ...
19
votes
6answers
10k views

What is a good, repeatable way to calculate MAXDOP on SQL Server?

When setting up a new SQL Server 2012, I use the following code to determine a good starting point for the MAXDOP setting: /* This will recommend a MAXDOP setting appropriate for your machine's ...
0
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0answers
51 views

MySQL Enterprise Monitor - Query Analyzer configuration problem

I'm using MySQL 5.1.69. protocol_version 10 version 5.1.69-log version_compile_os redhat-linux-gnu I have a problem with configuration/using MySQL ENTERPRISE MONITOR. I don't see data in ...
0
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1answer
71 views

Clarification on MySQL Workbench Options File Configuring

When in the MySQL Workbench tool, configuring the "Options File," I see a drop-down in the lower right corner with the options: client mysql mysqld By default, 'mysqld' is selected and I see my ...
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0answers
44 views

Using Configuration Management for DBA tasks?

We have a couple of Postgres 9.3 database servers in our system, all of them with their respective config files, databases, roles, role groups, permissions on schema/tables, extensions etc. We use ...
0
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1answer
45 views

Moved database (percona mysql) to larger disk, now everything is missing (though the files exist)

I dont know anything about databases or MySQL beyond the absolute basics so lets start with that. I moved the /var/lib/mysql from the / to a mounted volume which I remounted as /var/lib/mysql after ...
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0answers
59 views

Optimal config for a small vserver with ispconfig

I have a vserver with debian wheezy, 1GHz CPU single core, 512MB RAM and only 8GB HDD. Owncloud is running, but has its own database-engine How should I configure Mysql so it doesn't slow down the ...
7
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1answer
144 views

Lower performance on newest servers

We have several db servers on production, 4 of them with very similar hardware configuration. Dell PowerEdge R620, only difference is that 2 newest ones (bought and configured 3 months ago) have RAID ...