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

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23 views

Better configuration for a In-Memory MySQL database?

I have a local MySQL database for the only purpose of execute some PHP tests. To improve the speed of the execution, I created the database in memory using the ENGINE=MEMORY statement in every table ...
2
votes
1answer
28 views

MySQL best performance settings [on hold]

I am going to do some performance tests on MySQL server as I want to evaluate how MySQL behaves in some situations. MySQL is the only (additional) software installed on my server (Windows Server ...
0
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1answer
9 views

MongoDB Configuration File Locations

Some databases search/check multiple locations for configuarion files, if it finds many, it merges and does a priority if same options defined. Does mongodb search multiple locations for ...
3
votes
1answer
144 views

Connect to PostgreSQL from different host

I am facing error while connecting to the PostgreSQL server from different host, I configured both postgresql.conf and pg_hba.conf but unfortunately with no result. So I have installed PostgreSQL on ...
4
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0answers
33 views

How to change default port for T-SQL Debugger

The default port for T-SQL Debugger is 135, it is possible to change this port ? In my company this port is on special list of banned ports, therefore we need to open that service on another port ...
3
votes
1answer
29 views

Redefine Transaction log size restricion fails

I am trying to set the transaction log's max size restriction to UNRESTRICTED using SSMS using the following dialogue: The actual setting is set to 2.097.152 MB - a nonsense value that exceeds the ...
6
votes
3answers
86 views

SQL Server Agent won't start

When I'm trying to start SQL Server Agent, I got this error: TITLE: Microsoft SQL Server Management Studio Unable to start service SQLAGENT$SQL_NAGA on server NAGA. (mscorlib) ADDITIONAL ...
5
votes
1answer
45 views

How to run SQL services on NT SERVICE\MSSQLSERVER account if it is running earlier on LocalSystem

Recently just for experimental puprose, I have relocated the default (C:...) data\log file paths in server settings to new location (G:\DBA). Then I've moved the previously existing db's data\log ...
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0answers
22 views

Phpmyadmin not displaying table data

I have a table named "log", which basically stores error log for my php application. My application has database running on rds, and recently i had to delete logs from this table, so i downloaded a ...
0
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2answers
37 views

Disable MEMORY_TARGET after being locked out of database?

I'm setting up a local development environment in a virtual machine in which I installed Oracle XE among other software. When I initially set up the virtual machine, the RAM was set to 4Gb. In this ...
2
votes
1answer
45 views

Putting SQL Server databases into individual folders

We have a Dev server where we are trying out some automated partitioning scripts. The folder is getting quite large in terms of number of files. Is it possible to automatically have SQL Server use ...
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0answers
89 views

PostgreSQL FATAL canceling authentication due to timeout

I have a PostgreSQL 9.4 Database running on my CentOS 7 Server. This database has only ever been available to users on the LAN, however recently I needed to make it available to users outside the LAN ...
0
votes
1answer
124 views

psql “invalid client_encoding” error on OS X, PostgreSQL 9.4.5

I'm currently running a OS X Lion Server system which ships with a built-in and not-upgradable PostgreSQL version. After years of usage I've finnaly decided to leave the built-in version and install ...
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0answers
50 views

Memory usage still growing

I have problem with my production mysql server. The memory usage is still growing and I don't know why. Trouble started when we changed the server. My mysql version: 5.5.44-0+deb8u1-log - (Debian). ...
1
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0answers
73 views

Proper database configuration

I'm running MySQL 5.5 on Debian 7.8. My entire DB is 2200 MB large (all tables are InnoDB), the mysql process is taking up to 6G RAM but still I think that not evrything is loaded in RAM I have large ...
3
votes
2answers
74 views

Why is server configuration 'min server memory' configured at 0, but running at 16 (sometimes 8)?

We started to monitor sql server instance non-active server configurations and find something interesting. Why is server configuration 'min server memory' configured at 0, but running at 16 (sometimes ...
0
votes
1answer
91 views

can't install citext extension: could not access file “$libdir/citext”: No such file or directory

I'm trying to get citext available as a type in a specific database. The Postgres database server is 9.4. I see it on the server in the pg_catalog's pg_available_extensions view. From the psql ...
2
votes
1answer
106 views

SQL Server service automatically stops after starting

I have a problem with my SQL Server 2014 Express instance. It worked fine until now. I can't get it working because SQL Server service automatically stops immediately after I start it. I'm trying to ...
1
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0answers
56 views

Mysql server does not start if binary logging is disabled

I have been trying to disable binary logging on a slave server, since I do not use it as a master for another one, I have no use for the logs and I am trying to reduce lag so cut out everything that ...
2
votes
1answer
110 views

Checkpoints are occurring too frequently during pg_restore

Under PostgreSQL 9.2.2 (Windows 32 bits), I have a pg_restore command that systematically results in log warnings about the checkpoint frequency, for example: LOG: checkpoints are occurring too ...
0
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0answers
23 views

How to stop MySQL Workbench screens from staying on top

I have MySQL Workbench. I am doing multiple things at the same time - when one app is processing or doing something, I am working with another application. Workbench however when it's doing ...
9
votes
2answers
500 views

SQL Server max memory, page file, max degree parallelism

Three questions hope you DBA masters of the universe can answer: I know it is best practice to set SQL Server's max memory. So if a server with 44 GB RAM has SQL Server installed we should set the ...
1
vote
2answers
93 views

Postgres takes a lot of RAM (cached)

I have a small database PostgreSQL (v9.3) on Centos 6 x64 ( RAM: 8 GB ). postgresql.conf max_connections = 512 shared_buffers = 3000MB temp_buffers = 8MB work_mem = 2MB ...
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0answers
53 views

Can't read config files from pgAdminIII on local Kubuntu machine

My database starts fine, I can connect to it from pgAdmin and run queries. However when I go to Tools->Server Configuration->postgresql.conf I get an error. The error states could not stat file ...
0
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2answers
94 views

Setting max server memory in SQL Server 2014 [closed]

I have a SQL Server 2014 Standard Edition server running Windows 2012 R2, with 128GB memory. I'm attempting to configure SQL Server to use max memory of 96GB, but it appears to not be working. It is ...
1
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0answers
61 views

changing mysql configuration . Getting errors like Table is marked as crashed and should be repaired

On Our server I have done following configuration for Database: [server has 2 core, 2 GB ram and windows 2008 operating system] query_cache_size= 32M [Old] query_cache_size= 50M ...
5
votes
1answer
146 views

Performance problem after migration from SQL Server 2005 to 2012 [closed]

Last Friday, I migrated a SQL Server instance from 2005 Enterprise Edition to a brand new Windows Server 2012 server with SQL Server 2012 Enterprise Edition installed. Since then, users have started ...
1
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1answer
37 views

optimise my.ini for key query

I have a database system with a fairly complex dashboard query. First of all the details. Data model: DROP TABLE IF EXISTS `contract`; CREATE TABLE IF NOT EXISTS `contract` ( `id` int(11) NOT ...
4
votes
2answers
781 views

Listing SQL Server instance startup parameters

I have a server I have just restarted and verified which trace flag are active using DBCC TRACESTATUS: Trace Flag : 3688 Function: Removes messages to errorlog about traces started and stopped ...
1
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0answers
39 views

SQL Server on big machine falls over inexplicably

We've been doing some throughput testing with our web application. The production application resides on a couple of machines in the amazon cloud, consisting of a web server and a database server. ...
2
votes
1answer
298 views

RAID 10 array configuration for SQL Server

I have a question regarding RAID 10 and SQL Server. My plan is to purchase an HP DL380 G9 with the 24 drive config. The question is how to break up the array. The drives will be divided between the 3 ...
0
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0answers
35 views

What are the built-in default configuration values of redis.conf?

If I omit a configuration option in redis.conf, what value will be used upon running redis? The self-documented redis.conf states that just rarely. I have found (but didn't try yet) this command: ...
5
votes
3answers
187 views

Slow query performance due to temporary file?

Here is the query: SELECT "products".* FROM "products" WHERE (status > 100) AND "products"."above_revenue_average" = 't' AND ("products"."category_id" NOT IN (5)) ORDER BY ...
2
votes
1answer
244 views

SSL error during SQL Server install

During my SQL Server 2014 Enterprise installation efforts, I encountered an error near the end of the install that has prevented completion. A connection was successfully established with the ...
1
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0answers
42 views

Design of hard drive RAIDs

My task is to reconfigure a main server that houses the company's applications and data. The server is capable of handling everything. I wanted to find out if anyone has a suggestion on the best ...
4
votes
1answer
365 views

Oracle Database 12c: Unable to resize system tablespace

Problem: My java application is returning ORA-01691: unable to extend lob segment errors for every insert Cause: After running: SELECT * FROM dba_tablespace_usage_metrics ORDER BY used_percent ...
5
votes
3answers
192 views

Virtualize SQL High CPU

This is a client environment which needs significant overhaul so all I am trying to do is slow the bleeding. Situation CPU is getting crushed, often 80% or higher utilization VMWARE 5.5, Windows ...
0
votes
1answer
67 views

Oracle 11g PGA advice view is empty when it shouldn't

I have the following situation in an Oracle 11g server (it's part of a RAC). PGA_AGGREGATE_TARGET is set, STATISTICS_LEVEL is TYPICAL, and yet V$PGA_TARGET_ADVICE shows up empty. Why does this happen? ...
5
votes
1answer
60 views

To minimize Cache misses in PostgreSQL?

You can calculate cache misses as described here. However, I am interested in how to minimize the phenomenon in PostgreSQL 9.4.3 on x86_64-unknown-linux-gnu, compiled by gcc (Debian 4.9.2-10) 4.9.2, ...
2
votes
2answers
58 views

How do I define the frequency of my mongo backup

I want to know if there is a way to define in Mongo the frequency of backups have to be executed. There is any config file for that? An example will be excellent!! UPDATE I want to create a ...
1
vote
2answers
502 views

How do I create a Mongo config file to allow access to http on port 28017

Well I want to configure the mongo server to allows access for http. I put this on my mongo config file: port = 28017 rest = true And when I restart my mongod service and try to access I got this ...
2
votes
2answers
628 views

Secondary and Arbiter stuck in Startup

I'm using MongoDB version 3.0.0. I'm trying to setup mongodb replication on our machine. Replication was initially setup but due to some changes on the VM the entire thing crashed. When I tried to set ...
1
vote
1answer
37 views

MySQL connectivity error

I have a MySQL database on a Linux server that I am able to access through putty logging into servers terminal. When I try to connect to the MySQL database remotely, I get the error: Lost ...
0
votes
1answer
51 views

Setting shared_buffers over 320 MB prevents Postgres from restarting

I'm running Postgres 8.1 on a CentOS 5 system with 4 GB of RAM. Whenever I set shared_buffers above 320 MB, it won't run. I've checked SHMMAX and it's at 4294967295 which is the max allowed for a ...
2
votes
0answers
17 views

Should mongodb be run in a service, or a worker cluster?

I'm trying to implement an architecture that's similar to the coreos's production architecture (shown below) Should I run the database as a central service or one or more of the workers? I figured ...
2
votes
0answers
146 views

Mysql high cpu usage - cpanel

After an update from whm, I see a high CPU usage from MySQL (5.6). my.cfg: [mysqld] slow_query_log=1 slow_query_log_file="/var/lib/mysql/slow-query.log" long_query_time=1 skip_name_resolve ...
1
vote
1answer
39 views

What does Oracle XE perform during installation?

I have oracle11g2 installed on my noteobook. I then installed the Oracle Database 11g XE. Now a .dll which uses the oracle11g2 client does not work anymore. First I recogniced that I had now two ...
2
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2answers
426 views

How do I limit Oracle's memory use?

I would like to use Oracle's automatic memory management, with a limit of around 4GB. (Past experience has shown this to be plenty for my dev PC and that it is easier to get an idea about any ...
7
votes
1answer
158 views

Is it ever ok to not test a feature? [closed]

Is there any point at which you become so familiar with your language/database/system that there is no need to test a new feature/configuration/query/etc. by contained/simulated testing before ...
0
votes
1answer
640 views

Mysql - unknown variable 'table_cache=64'

I use Mamp Pro 3. I upgraded Mamp's MySql to 5.6.24 using this script https://gist.github.com/tobi-pb/b9426db51f262d88515c. After that I ran the Mamp Pro and MySql cannot be started. So I looked the ...