Questions tagged [maintenance]
In the context of a database, maintenance describes routine operational tasks around a database system, such as monitoring, tuning and backup procedures.
250
questions
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0answers
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How to select specific databases in a backup retention policy maintenance plan cleanup task?
I have full backups of three different databases. Right now all of their backups follow the same retention policy, but I need to setup the retention to a different amount of time for each database.
...
0
votes
1answer
25 views
Does this plan work as a Failover strategy-SQL Server 2016 Standard Edition
We have two SQL Server 2016 Standard edition (standard edition due to budget issues) configured one as primary sql server and another one as fail-over server.
I have implemented Transactional ...
-2
votes
3answers
180 views
How to maintain a Database with stored procedure that runs forever?
I have an interesting question and I cannot find a reply.
I would like to create a database of prime numbers. On this page Prime numbers in a given range , I can find various examples of SQL code ...
-3
votes
3answers
124 views
Hide business data from maintenance user
I'm newbie in postgres and have a question:
we have some clients that have ultra-super-secure-sensitive data on postgres and they don't want to show it anyone. but sometime, the apps experience some ...
0
votes
1answer
20 views
Running CheckDB on a clone
My company are looking to bring in Redgate's SQL Clone to deploy live databases into other environments. I wanted to see if running CheckDB on these clones was a viable option instead of restoring a ...
1
vote
1answer
48 views
Foreign Keys delete data [closed]
I am failing to understand a few concepts about FKs, i have some really big tables (dozens of million rows) with lots of FKs and i want to delete old data, i can disable FKs -- delete Data -- enable ...
1
vote
1answer
64 views
log to table vs log to output file
I am using ola-hallengren solutions for database maintenance.
A question about the log, I see in the documentation website:
LogToTable: Log commands to the table dbo.CommandLog.
Value Description
...
0
votes
0answers
128 views
Reset all sequences so that they continue after max(id) + 1?
It looks like I messed up a database migration and while all sequences are there, they would start at 1, which triggers errors like:
django.db.utils.IntegrityError: duplicate key value violates ...
6
votes
2answers
227 views
IndexOptimize - Configuration
We recently switched to Ola Hallengren's maintenance script and automated the deployment of MaintenanceSolution.sql to our customers's SQL Server instance.
We need to set these parameters for the job ...
0
votes
1answer
38 views
Postgres VACUUM taking forever
I have an specific table that is taking forever o VACUUM.
There are no locks in the DB and even letting it overnight the VACUUM didn't finish.
According to the statistics (ANALYZE works fine) the ...
1
vote
1answer
119 views
SQL Server Backup failing Error :3041
I am running SQL Server 2008R2 Express edition. For all databases full backup, I am using expressmaint.exe. In this, I am using the command
-S server name -D ALL -T DB -R
D:\SQL_BACKUP\...
0
votes
0answers
17 views
how do you query for empty tables in Redshift?
I would like to perform some long overdue DB cleanup, and am trying to analyze table statistics. I'd like to:
Get a list of all empty tables
Get metadata by table relating to the last time data was ...
0
votes
2answers
146 views
What is the behavior of SQL Server Maintenance Plan - Clean Up task for deleting old backups
This seems pretty obvious, but it's remarkably hard to find an actual document that addresses this.
The scenario:
Full Backup - Weekly (Set to expire after 7 days)
Differential Backup - Daily (Set ...
0
votes
2answers
45 views
Monitoring Maintenance Tasks in AlwaysOn Clusters
I have an environment with multiple AGs on a single server and they encounter a split situation in which some end up on one node and some end up on the other node (in a failover event, perhaps). When ...
1
vote
1answer
180 views
Azure SQL Database and Database Maintenance
If SQL Agent isn't available for Azure SQL Database then is it possible to maintain (indexes, statistics etc) the databases with Ola Hallengren's maintenance scripts, for example?
0
votes
2answers
156 views
Database Maintenance Job and Backup Scheduling
I would request to have expert advise on scheduling maintenance and backup jobs. Below was the scenario prior to my change:
Full backup of database scheduled to run at 12:30AM everyday.
Differential ...
0
votes
2answers
83 views
How full is my innodb shared table space?
How can I find out how much data is in the innodb shared table space.
I have a massive shared idb file but I suspect that it contains only about 350 Gigs of data. I need to know how full it is so I ...
0
votes
2answers
331 views
sp_MSforeachdb Continue on failure when running DBCC CHECKDB
I have the following maintenance script
DECLARE @sql NVARCHAR(30) = 'DBCC CHECKDB(?)'
EXEC sp_MSforeachdb @sql
This checks every database for corruption. I have run this on my test server where I ...
2
votes
2answers
452 views
Trouble with Ola Hallengren's @DatabasesInParallel parameter
I am testing out this new parameter @DatabasesInParallel and it seems to only back up 1 databases at a time but it doesn't specificy this as a limitation in the documentation so I am wondering if I ...
1
vote
0answers
154 views
OLA Output File Cleanup - Better Options
Does anyone have a way to change the Ola Hallengren "Output File Cleanup" job that doesn't require CmdExec? My company is trying to eliminate CmdExec where ever possible. I was thinking a PowerShell ...
0
votes
3answers
760 views
VACUUM did not reduce reported size of database?
I have a database with an extremely large table in postgresql.
I'm aware that the only way to shrink the on disk size is VACUUM FULL, but I cannot do that, as I don't have anywhere near enough free ...
1
vote
1answer
1k views
Cannot create maintenance plan, I get the message “The task with the name '' and the creation name is not registered for use on this computer”
I just installed SQL server 2016 (Standard edition) on a new server,
I'm trying to add a Maintenance plan (I've tried back up plan, rebuild indexes and many more)
I'm getting a weird message when I'm ...
1
vote
1answer
47 views
Suggestions for large DB maintenance
i have one large database (more than 1,500 tables and total db size of 56GB) and i would like to ask for tips and guidance regarding the maintenance of such large database!
Will the size be a problem ...
2
votes
1answer
38 views
SQL Rebuild indexes data size percent a little smaller [closed]
I see a small change int the percent of data when rebuilding. I feel that this might be a usual issue but as I am new to SQL I get little worried when I see that the percent of data goes down after ...
0
votes
3answers
156 views
Zero Maintenance self-hosted off-line databases?
I'm looking for a "Zero Maintenance" database engine that can be installed on Windows. We have a lot of customers that want our software installed on their local computers. Although we have a cloud ...
2
votes
2answers
723 views
Backup Performance best practices
I'm in the process of re-writing our maintenance plans and at the moment the focus is backups. Whilst preparing this plan, I'd like to try and ensure that procedures are in place to ensure that backup ...
1
vote
1answer
80 views
Defragmenting indexes SQL Server bases on avg_page_space_used_in_percent
I am wondering if I should take into account information from
sys.dm_db_index_physical_stats
column
avg_page_space_used_in_percent
when deciding on defragmenting/not defragmenting an index.
How ...
0
votes
1answer
74 views
SQL Server - Non-reindexed Database [closed]
I have a database that has not been reindexed in the last 5 years.
I want a yes or no answer if databases without index maintenance and "Missing Rows" are related to each other.
1
vote
2answers
204 views
Schedule Maintenance Plan - Request For a Good Sequence
I have installed Ola Hallengren's MaintenanceSolution.sql script.
So what I'll get out-of-the-box are a lot of jobs:
My questions is:
What schedules should I implement based on the jobs that ...
1
vote
1answer
352 views
ola-hallengren index rebuild with multi thread and multiple days
Ola scripts for index maintenance work really well for smaller databases. For multi terabyte databases with big indices, many partitions, and a small interval of schedule times I observed that the ...
1
vote
1answer
33 views
Log table that grows like flash [closed]
I have my own app that get low traffic (like 100 ppl per day).
As part of my research I am 'logging' all the queries done to by the server in a table in the database. An example, if user enters home ...
5
votes
2answers
2k views
Rebuild Index not freeing up space
I had a situation yesterday where my indexes were rebuilt and database size doubled in size (50 % of the new size was unused). Sort in tempdb is set to off and I get the impression that this rebuild ...
1
vote
2answers
327 views
T-SQL script to check if index rebuild operations are online are off
I wanted to see if it was possible to determine whether my indexes are rebuilt online or offline with some T-SQL. I'm currently trying to troubleshoot extra disk space used during a rebuild procedure ...
1
vote
0answers
241 views
Postgres VACUUM , REINDEX, ANALYSE
How do I know if I need to run any of VACUUM, REINDEX, ANALYSE? Because I don't want to run this every day even if it is not needed.
For example, is it a good option to run all of above after 100 ...
5
votes
1answer
256 views
Dump the buffer pool to disk so it can be loaded after a restart
Is there a way to preserve the buffer pool cache so that is can be loaded in after a restart? My research suggests that other DB servers can do this but SQL Server is not one of them. I'm looking for ...
-1
votes
1answer
117 views
C drive full sql error log huge [closed]
I read a recommendation for setting up a job to run EXEC sp_cycle_errorlog to recycle the SQL Server error log, so that it stops getting so large.
Do I need to set up this job for all of the ...
0
votes
1answer
731 views
Create a maintenance plan for sql database with C#
We are planning to create c# jobs that perform some database maintenance actions such as backup, shrink files etc...
I have read in many blogs that database shrink is not recommended and thats why I'...
7
votes
3answers
3k views
(Ola Hallengren) Deleting log backups older than last FULL backup
When I deploy Ola Hallengren's backup script into my servers, I always set the @CleanupTime parameter for log backups to zero. This way, every time the log backup job runs, it checks for log backup ...
1
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0answers
273 views
HowTo: [Output File Cleanup] workaround for UNC targets
Hallengren job [Output File Cleanup] silently fails when the output file directory is a network file share.
Question: Is there a better, cleaner way to resolve the issue detailed below when the job ...
1
vote
2answers
968 views
Oracle autotask results of space advisor
When querying the dba_autotask_client view on a Oracle 12c database, I can see that the auto space advisor is enabled. Oracle docs says the findings are now implemented automatically. How can I view ...
4
votes
1answer
356 views
transaction log growing out of control during maintenance
I have been asked to clean up preceding and appending spaces in several columns of a table. the table is an import from flat file and has many mistyped rows.
The table has over 150 million rows.
...
0
votes
1answer
1k views
What can cause DBCC CheckDB to take longer than usual? [closed]
I have a maintenance task, which do a DBCC CHECKDB WITH PHYSICAL_ONLY on the Databases on my server (SQL Server 2016 Standard Edition).
This usually takes about 7h30 for about 120 databases and it is ...
8
votes
1answer
667 views
Does RE-BUILDing a HEAP cause downtime?
This is a bit of an embarrassing question, and I can't believe I've missed this for so many years.
I have a vendor third-party database that has 401 heap tables. I've recently got into using Brent ...
2
votes
1answer
1k views
Time taken by VACUUM FULL to reclaim space
After receiving some insightful guidance in a previous post here, I'm going to run VACUUM FULL on 4 PostgreSQL 9.3.10 tables. Table sizes are:
1) links_publicreply: ~30M rows, 9 columns, 3 indexes (...
4
votes
2answers
639 views
Is there any reason to stop transaction log backups during a maintenance window?
We have recently had an issue where the transaction log grew and maxed out the storage space. This happened during a maintenance window (Ola Hallengren index Optimize scripts are being used.) For ...
2
votes
3answers
1k views
Maintenance plan don't stop & don't backup all databases [closed]
I have a server with 100 databases,
I have a maintenance plan (MP) for backups.
I noticed that the maintenance plan don't backup all databases when I'm looking at the backup folder destination I can ...
1
vote
1answer
3k views
Can not drop a PostgreSQL database using dropdb?
I can not drop a database using
dropdb
I get this error:
ERROR: must be owner of database
but with psql \l I see user admin (the one dropping the db) with
admin=CTc/postgres
besides the ...
10
votes
3answers
1k views
Detaching a database permanently
If a database is detached from an instance permanently, are there any cleanup tasks that should be done?
5
votes
2answers
10k views
Make Postgres database temporarily read-only (for performing volume snapshots)
The PostgreSQL built-in backup mechanism isn't always very suitable. Sometimes, you want to put the application in a quiescent state, because it has external data with which you want to backup at the ...
1
vote
2answers
665 views
AWS RDS Post Optimisation after a huge delete
I'm using AWS RDS MySQL. All the tables are in InnoDB and enable innoDB_file_per_table.
One of my logging tables is growing too fast. I'd like to remove older than 1-week data. Even 1 week of data ...
