Reducing Failover Time
Jul 12, 2006Hi All,
Is it possible to reduce the automatic failover time on MS SQL 2005? It seems to take around a minute on my servers.
Thanks for your help.
Regards,
Hi All,
Is it possible to reduce the automatic failover time on MS SQL 2005? It seems to take around a minute on my servers.
Thanks for your help.
Regards,
We have a reporting system where the default rendering format is HTML.
HOwever, in some cases user may export the data into Excel aftergenerating
the report in HTML. Howveer, this export is taking too much time. eg 5500
row report in HTML takes around 8 minutes to export into excel. Is there a
workaround for this? Please note that default rendering has to be in HTML
only.
Also another feature noticed is that in RS 2005, the report server execution
log seems to be logging seperate entries for export feature as well. This
was not happening in RS2000. Is this a new feature in RS2005 or is the
underlying SP for the new report being called again when the export to excel
happens?
Any help would be appreciated
Hi,
My application needs to retrieve data from a table which has more than 15 lakh records. The records keep increasing in thousands every 15 days.
Is there anyway i can reduce the time to retrieve? basically i have a select statement with a few conditions and a clause for the id's of these records.
When I force Mirroring to fail over while watching the Mirroring Monitor I notice something interesting. Before I failover, the servers are synchronized and there is zero unsent log and zero unrestored log. When I failover, the mirror changes to "restoring", stays there for about four minutes, switches to "Principal, restoring", and then the unsent log and unrestored log numbers jump to values in the tens of megabytes, and we spend time restoring.
We wait about five minutes between requesting the failover and having the servers back up again, answering requests.
Why does failover take so long? We've been thinking that failover shouludn't take so long because the servers think they're synched. What causes the log spooling spike? Is the state refelcted by the mirroring monitor inaccurate?
Hi,
We are having 8 databases mirrored with witness server, by default automatic failover occure in 10 secs if witness does not get a ping from a principal server.
If there any way to increase the failover time perioed.
Regards
Sufian
Is there any single TSQL query which provides below info.When did my AlwaysOn Availability group failed over and from which node it failed to which new node(i.e. replica)?
View 3 Replies View Related1. Once fail over to secondary replica, what will happen to connected session in primary node? can the session fail over to secondary seamlessly or need to re-login. what happen committed transactions which has not write to disk.
2. Assume I have always on cluster with three nodes, if primary fails, how second node make write/ read mode.
3. after fail over done to 2nd secondary node what mode in production(readonly or read write).
4. how to rollback to production primary ,will change data in secondary will get updated in primary.
We have set up Mirroring with a witness server and everything works fine when we failover from the SQL Management console.
However, if we failover when our Maccola client is connected, the client blows up - clearly because it can no longer connect to the database.
The ODBC DSN used by the Maccola client shows a checkbox for the 'select a failover server' but the checkbox is grayed out.
Also the summary of settings for the DSN at the end of the wizard reveals that the failover to server (y/N) option is set to N.
The default setting for this DSN is 'populate the remaining values by querying the server' but it doesn't appear to be getting the settings for failover from the server or any other interactive DSN settings either. The server is clearly set for mirroring.
Another suspicious item is that the DSN cannot connect to the server with SA permissions, even though the server is set to mixed security and we use the correct authentication.
Is it possible that the client MACHINE is not authenticating with the domain or sql server properly. We are logged into the client with the domain account that is the SQL admin account on the sql server box.
We should be able to interact with the sql server settings through the ODBC DSN on the client shoulnd't we?
Are we missing a service pack on the client?
Thanks,
Kimball
1. In alwaysON fail over cluster, Once fail over to secondary replica, what will happen to connected session in primary node? can the session fail over to secondary seamlessly or need to re-login. what happen committed transactions which has not write to disk.
2. Assume I have always on cluster with three nodes, if primary fails, how second node make write/ read mode.
3. After fail over done to 2nd secondary node what mode in production(readonly or read write).
4. How to rollback to production primary ,will change data in secondary will get updated in primary.
Hi,I have the following three tables below containing Resources,Categories and a link table so each Resource can belong to one or moreCategories. I would like to create a view (ResourceID, ResourceName,CategoryID, CategoryName) that includes one row for each Resource withjust one of the Categories that it belongs to.Resource table- ResourceID- ResourceName- etc..Category table- CategoryID- CategoryName- etc..ResourceCategory table- ResourceID- CategoryIDCan anyone help? Thanks.
View 2 Replies View Relatedi used "dbcc shrink file" to reduce the log file of a database.the query analyzer says "successfully executed" but the log file doesn't seem to reduce..am i missing something?
View 2 Replies View RelatedHi all!
The transaction log of the databse i am using has grown up to 7GB...(previously the setting was unrestricted file growth...now changed to restrict file growth to 7 GB approx.)
now this 7GB space is not needed....i would like to reduce the size to around 2 GB...how can i achieve this?i observer that on the properties i can only increase the size and not decrease it...also i am using transactional replication..this server is the publisher to four subscribers..
Hi guys, how are you?
Ive got a little question, i hope you can help me up
in sql server i have 3 tables
Code:
user
id_user - autoincremental int, primary key
username - varchar 30
car
id_car - autoincremental int, primary key
carName - varchar 30
user_car
id_user - int, foreign key
id_car - int, foreign key
what i want to do, is to
1.- insert a row in User,
2.- insert a row in Car
3.- using SCOPE_IDENTITY, to insert a new row in user_car that relates the ids of the last added car with the last added user.
But i need that to be done in one single transaction.
Once that is done, i have another question
how can i do the same but where i can add a variable number of different cars? in other words, i add 1 user and then add 5 cars, then create 5 rows in the user_car where i have the id of the last added user with the incremental id of the last 5 added cars
how can this be done in one single transaction, i cant make it in 3 transactions cuz it would cause me a lot of trouble. Any help?
my transaction should be something like this
Code:
insert into user(username) values('user1');
insert into car(carName) values('car1');
insert into user_car(???,???)
but im not sure how to do this in one single transaction
Hi,
If I understand it correctly, you only need an LDF file to restore to a point in time after the last full backup? If this is so, then Could the LDF file not be reduced in size on perfoming a full backup?
Most of the time it's not an issue as there is enough space on the HDD, but is it possible to reduce the ldf file size periodically (manually would be fine). Is changing the recovery mode from FULL to SIMPLE and then back to FULL an option?
If so, is anyone able to tell me how, exactly, I can do this? ... I've sifted through the documentaion to no avail ... :eek:
Many thanks
Rob
I am trying to reduce the size of my tempdb using the DBCC SHRINKFILE command and get the following error.
DBCC SHRINKFILE: Page 1:1164376 could not be moved because it is a work table page.
How can I get around this so I can shrink the db?
hi
i have a database that becomes to big after a few days. is there a chance to say if the table reaches a number of lines or a special memorysize, delete (or better archive) the oldest entries?
thanks
Hi all,
I have started to look at the way our production DB has been defined and set up, with the view to improving performance.
The DB is now 11gb, and the original size was set up as 3000mb, the rest has been take in 10% additional extents.
Now, back in my DB2 DBA days, this was a bad thing to have any data spread across extents as they may not be contiguous. I am assuming that is the same with SQL Server. Can someone confirm/deny this?
If this is the case, how can I get the DB back into one primary partition?
Thanks in advance.
Mike
If I have a transaction log in a database of size 1GB ( space allocated is during creation of database) currently only 300 mb of its space is used i.e. nearly 700 mb is free. If I want to reduce physical file size of transaction log by 200 mb and release it for operating system then How can I do it???
View 4 Replies View RelatedI have inherited a number of databases which were substantially over sized when they were set up. I'd like to reduce both the log and database files to be smaller than their original sizes, what's the easiest way to do this? If anyone has any experience of doing this please reply.
View 1 Replies View Relatedi am new to sql server. i recently found the transaction log size of my database has reached 109 MB. how can i reduce it. a transaction log backup was sceduled daily at 12.00 noon nad full backup monthly.
View 3 Replies View RelatedI have a production database of a size of 70 GB. Half of the data was archived and deleted from the current database. What is the best way to
reduce the size of the database, as we cannot shrink an entire database to be smaller than its original size? Thanks a lot!
I created few jobs that would archive the production DB and delete the archived data...
but it looks like the DB size is not reducing!!! Some times it looks like the size has increased!!
I think this is because of the log file size has increaded by the DELETE operations....But what can I do for this???
Please Help!!
Having difficulty achieving an end-result in transforming the results of a rowset query into XML.
Here is simplified test code that displays my problem:
declare @TimesheetHdrs table (EmpID int,EntryYear smallint,EntryPeriod tinyint,AdminNotes varchar(max),UserNotes varchar(max))
declare @TimesheetDtls table (EmpID int,EntryYear smallint,EntryPeriod tinyint,ProjCode varchar(25),ActCode varchar(25),ExpendCode varchar(10),EntryDate date,EntryQty decimal(7,2))
declare @Projects table (ProjCode varchar(25),ProjName varchar(200))
[Code] ....
The result of the above code is the following:
Code:
<root>
<timesheet empid="1" entryyear="2012" entryPeriod="1" adminnotes="These are the admin notes" empnotes="These are the user notes">
<project projnum="TestProject" projname="The really big project for our best customer">
<activity actcode="000103020200302302322" actname="Demolish the 55th story of the main tower">
[Code] ....
Notice how there is a tremendous amount of redundancy in the XML. I was hoping to come up with an XML result of the following, which transmits the same data, without the redundancies.
Code:
<root>
<timesheet empid="1" entryyear="2012" entryPeriod="1" adminnotes="These are the admin notes" empnotes="These are the user notes">
<project projnum="TestProject" projname="The really big project for our best customer">
<activity actcode="000103020200302302322" actname="Demolish the 55th story of the main tower">
<expenditure expcode="1" expname="Regular Hours">
[Code] ....
The length of a column is 20(varchar),
When i m trying to execute select column name it gives all 20 characters.
My requirement is - is there any option by which i will be able to see only 10 characters ?
I'm trying to insert all the rows from a table to a new table.
(insert A select * from AA)
The reads on Profiler shows ar really high value (10253548).
First I created a unique clustered index and the reads shows (3258445), then I created a non clustered index expecting to have lower reads. Instead the reads shows (10253548).
I read creating indexes helps reduce reads. But it's not happening.
Any ideas what is going on?
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I am working on a personal project and am drawing a complete blank(too much celebrating last night?) on the SQL term that is used toeliminate multiples of like data when it is returned from thedatabase.ie, instead of ....redblueredgreenit would return ...redbluegreenSorry for the trouble and thanks.
View 2 Replies View RelatedHi all,
We currently have an e-commerce app written in .NET with SQL Server backend and built-in CMS that works just fine. We are now implementing a service to remove the need for the CMS by automating the synchronisation of the e-commerce database with a back-office database (non SQL Server). The problem we have run into is that during some of the larger updates to the website (i.e. new product information), the e-commerce system is experiencing timeouts. The synchronisation service uses transactions while performing updates and so I am assuming that the timeouts are being caused by the transactions locking tables and data.
What steps can I take to try to reduce these locks? The transactions are as short as possible so I do not think we can reduce the amount of processing each transaction deals with. I was looking at different isolation modes, Snapshot in particular, to reduce the locks, but would like some advice from someone who may have dealt with this type of situation before I start messing around here. (The synchronisation service uses the default ReadCommitted level, BTW)
Any advice you have to offer will be much appreciated.
Regards,
Stephen.
I have a Log file grown to 28 G.
TASK: I want to claim the hard disk space.
I want to use
--backup Log DB-NAME with truncate_only
--dbcc shrinkfile(DB-NAME_Log,1)
Is there any risk involved in above steps, and OR would any experienced Folk like to share his or her idea to the Task as above.
Many Thanks,
I have a database who is in full recovery mode. I have four maintenence plans setup: database backup, log backup, optimization and integrity checkup. The last two plans run weekly and the first two run daily. I found that the log size often increase to a dramatically size in a very short period, almost same size as the database file (4G). Further I found that the size seems increase a lot after the last two plan runs.
My question is that the optimization operation(reconstruct index page) will write any reocord to log file? Is this possible a reason?
Now the log file occupy too much disk space (90% of space can be free). What I should do? Shrink database weekly?
Thanks
Can anyone help me reduce a transaction log. It is currently at 2.5GB because it was set to autogrow with no backup !?
I need to drastically reduce it and have backed it up and tried dbcc shrinkfile...but...it now says space used is 120MB but current size is still 2.5GB.
How can i reduce this down please ??
thanks
Hello. I am wondering how to effectively reduce the size of my database. After viewing the individual table sizes, I have come to realize that nearly 99% of the database's size is due to images. I am told that too much binary data is not good. How can I go about reducing the size of my database (possibly the images themselves)? I'd appreciate any help.
View 11 Replies View RelatedAt this time I am only playing with the applications that generate the data and send it to the database. Without doing too much, and with deleting most data tables that were created, my transaction log file has grown over a gigabyte. I tried using the SQL server management studio (express) to shrink the database (tried shrinking files, too) but that did not make the file smaller. Right now there is hardly any data in the database (6 tables, a dozen columns and rows each) so it must be old transactions that are kept in the log. How do I get rid of the old data and make the file size smaller? Thanks.
Kamen
Hi all,
Currently we take full database backups nightly for our SQL Server 2000 data warehouse systems. The backups take a very long time over 20 hours and we would like to find a good way to reduce these backup times. How can I change our backup plan to reduce the long backup run times. Data size is 1 TB for our data warehouse database server.
Thanks