Live Streaming Requirements?
Apr 10, 2006
We€™re doing a website for a TV station, and they want to have a live TV broadcast on their website, our experience is basically in CMS and portal solutions, but we never had any experience in live streaming, so this is all new to us, so we€™re looking for a technical and financial proposal with your suggestions and recommendations, this is the details of the project with some of the inquiries we have:
-The signal is SDI (Pal 25 fps)
-The output (online streaming) 15 fps
-The user will have two options to view the movie in:
1. Low: 56K
2. High: 300K
-The video should come within a customized designed page, probably as a code we can place inside an html table€™s cell, not as a link for external link
-We€™re expecting about 200 users for the video each month; each user€™s logon time expected 10 min.
-We have a Red hat Linux on our server that will host the site, and we use php/MySql technology.
Inquires:
1. Why Windows media is better then Real in terms of performance, can you provide us with a comparison table to include it to our client?
2. If we choose Windows media, what are the requirements we need to have, form both; the TV station side, and in our Linux server? And how much would it cost?
4. Is there any hardware required from the TV station side such as DVR, or some sort of encoder, if so; what€™s you€™re recommendations (type/ brand), please note that this is a TV station and it needs a high quality professional hardware
5. How (and this is probably the most ambiguous task)
5.1. Do you broadcast the digital signal coming from the encoder (I guess) to the server?
5.2. And then place this signal on a PHP page? Do you give us a link to embed in our code?
6. If we choose to host the live streaming on a separated server and include the URL in our code, would that still required from our server to support Windows media, or it doesn€™t matter as long as the video streaming is hosted on a Windows streaming server
7. How much disk space does it need to host a live streaming (with the details mentioned above)?
We would really appreciate your comments and suggestions, as this is our 1st time to dealing with live streaming.
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Jan 10, 2008
I am using the SQL Server 2005 JDBC driver. I need to write a piece of code that makes use of the streaming ResultSet. That is as soon as I get the first row, a worker thread should be able to begin processing on it without waiting for the second row to arrive. When the second row arrives, the second worker thread should start processing on this new row without waiting for the third row to arrive and so on. Usually, with a ResultSet, I need to wait for all the rows to arrive first before I can start navigating the rows in the ResultSet. But in my code, I need to start navigating the ResultSet even as more rows are pouring in from the DBServer. How can I do that? Any pointers in this direction will be helpful. Further, I want to know will setfetchsize be of any help here? If I set the setfetchsize value to 1, does that mean that as soon as I get the first row, I can start working on this row of the resultset(viz start navigating the ResultSet) without waiting for the second row to arrive in the ResultSet?
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Oct 15, 2007
Interested in feedback from the SQL grand wizards (and would-be wizards) that haunt these forums.
Let's say you need to constantly stream data into an OLTP system. We are talking multiple level hierarchies totaling upwards of 300 MB a day spread out not unlike a typical human sleep cycle (lower data during off-peak, still 24/7 requirements). All data originates from virtual machines running proprietary algorithms. The VM/data capture infrastructure needs to be massively scalable, meaning that incoming data is going to become more and more frequent and involve many different flat record formats.
The data has tremendous value when viewed both historically as well as in real-time (95% of real-time access will be read-only). The database infrastructure is in it's infancy now and I'm trying to develop a growth plan that can meet the needs of the business as the data requirements grow. I have no doubt that the system will need to work with multiple terabytes of data within a year.
Current database environment is a single server composed of a Dell PowerEdge 2950 (Intel Quad Core 5355, 16 GB RAM, 2 x 73 GB 15K RPM SAS ) with an attached Dell PowerVault MD1000 (15 x 300 GB 10K RPM SAS in RAID 5+0 [2x7] w/hot spare) running Win 2k3 64-bit and SQL Server 2005 x64 Standard, 1-CPU.
I am interested in answering the following questions:
Based on the scaling requirements of the data capture and subsequent ETL, what transmission method would you find most favorable? For instance, we are weighing direct database writes via stored procedures for all VM systems versus establishing processes to collect, aggregate and stream CSVs into a specialized ETL environment running SSIS packages that load data and then call SQL Stored procedures to scrub and prepare for production import. The data will require scrub routines that need access to current production data, so distributing the core data structures to multiple ETL processing systems would be expensive and undesireable.
Cost is very important to the overall solution design. In terms of database infrastructure, how would you maximize business value while keeping cost as low as possible? For instance, do you think there is more value in an ACTIVE/ACTIVE cluster (2 x CPU licenses) where one system acts as ETL and the other as OLTP or would you favor replication of production data from ETL to OLTP or (vice-versa). With the second scenario, am I mistaken in thinking we could get away with a Server/CAL licensing model for the ETL server?.
Are there any third party tools that I should research that would greatly aid me here?
I appreciate all feedback, criticism, and thoughts.
Best Regards,
Shane
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Feb 8, 2008
Hello everyone.
I have an interesting problem. We have a SQL database with a field that is an image type. In it are records where the image field are text files. What I would like to do is look at these files and stream them line by line and do some processes for each line read.
So let's say a client machine uploaded a file called myfile.txt into this database.
I would like the asp.net (vb) application tkae this file and read each line and do some processing.
I looked at memorystream and streamreader but just can not figure this out. Can you please help? Thank you Kameron
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Jul 11, 2015
I want to insert lots of data into two tables. For this I want to use table valued parameters and a stored procedure. So, what is the better way for best performance? Using two stored procedures or a single procedure with two parameters? How does SQL Server consume the data if I use a single procedure with two parameters. Is it really streaming the data? I mean, is SQL Server already starting to insert the first rows as soon as it gets it even if the client is still sending more and more rows and than the same with the next table?
e.g. I have a procedure like this:
CREATE PROCEDURE [dbo].[usp_UpdateElements] (
@tvpElementsToInsert As [dbo].[tvpElements] Readonly,
@tvpElementValuesToInsert As [dbo].[tvpElementValues] Readonly) AS
               Begin
                   Insert Into Elements Select * From @tvpElementsToInsert;
                   Insert Into ElementValues Select * From @tvpElementValuesToInsert;
               End
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Oct 14, 2015
I need to store file(s) to SQL without streaming / reading at Server. I have created a Web API with AngularJS and SQL. e.g.Â
var fileType = httpRequest.Files[file].ContentType;
    var fileStrm = httpRequest.Files[file].InputStream;
    var fileSize = httpRequest.Files[file].ContentLength;
    byte[] fileRcrd = new byte[fileSize];
    var file_Name = Path.GetFileName(filePath);
    fileStrm.Read(fileRcrd, 0, fileSize);
Is it possible to send file data to SQL (in bytes) without streaming / reading at server?I don't want to put a load on server for large files. just read  the data and send them to SQL where SQL will do the streaming and store data as varbinary.
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Nov 1, 2007
I have the following table:
CREATE TABLE [dbo].[IntegrationMessages]
(
[MessageId] [int] IDENTITY(1,1) NOT NULL,
[MessagePayload] [varbinary](max) NOT NULL,
)
I call the following insertmessage stored proc from a c# class that reads a file.
ALTER PROCEDURE [dbo].[InsertMessage]
@MessageId int OUTPUT
AS
BEGIN
INSERT INTO [dbo].[IntegrationMessages]
( MessagePayload )
VALUES
( 0x0 )
SELECT @MessageId = @@IDENTITY
END
The c# class then opens a filestream, reads bytes into a byte [] and calls UpdateMessage stored proc in a while loop to chunk the data into the MessagePayload column.
ALTER PROCEDURE [dbo].[UpdateMessage]
@MessageId int
,@MessagePayload varbinary(max)
AS
BEGIN
UPDATE [dbo].[IntegrationMessages]
SET
MessagePayload.WRITE(@MessagePayload, NULL, 0)
WHERE
MessageId = @MessageId
END
My problem is that I am always ending up with a 0x0 value prepended in my data. So far I have not found a way to avoid this issue. I have tried making the MessagePayload column NULLABLE but .WRITE does not work with columns that are NULLABLE.
My column contains the following:
0x0043555354317C...
but it should really contain
0x43555354317C...
My goal is to be able to store an exact copy of the data I read from the file.
Here is my c# code:
public void TestMethod1()
{
int bufferSize = 64;
byte[] inBuffer = new byte[bufferSize];
int bytesRead = 0;
byte[] outBuffer;
DBMessageLogger logger = new DBMessageLogger();
FileStream streamCopy =
new FileStream(@"C:vsProjectsSandboxBTSMessageLoggerInSACustomer3Rows.txt", FileMode.Open);
try
{
while ((bytesRead = streamCopy.Read(inBuffer, 0, bufferSize)) != 0)
{
outBuffer = new byte[bytesRead];
Array.Copy(inBuffer, outBuffer, bytesRead);
string inText = Encoding.UTF8.GetString(outBuffer);
Debug.WriteLine(inText);
//This calls the UpdateMessage stored proc
logger.LogMessageContentToDb(outBuffer);
}
}
catch (Exception ex)
{
// Do not fail the pipeline if we cannot archive
// Just log the failure to the event log
}
}
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Jul 20, 2004
This is taken directly from a job requirement (names are not mentioned to protect the ignorent...I meant Innocent): The employee must occasionally lift and/or move up to 25 pounds. While performing the duties of this job, the employee is frequently required to stand; walk; sit; talk or hear; use hands to finger, handle, or feel; reach with hands and arms; climb or balance; stoop, kneel, crouch, or crawl.
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Sep 6, 2006
I am considering buying a new home PC but want to make sure it can handle SQL 2005. Most of what Im looking at comes with XP Home edition. I found this:
http://www.microsoft.com/sql/editions/developer/sysreqs.mspx
but it doesnt specifically say Home edition, and I dont want to purchase without knowing this first. Does anyone know a link that would specify this?
TIA, cfr
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Aug 30, 2005
saravanan writes "hi,
At present i am a B.E. i am quite intrested in sql servers.
i want to be a full fleged DBA. so please guide me , what are the basic requirements and necessary exams to be given for the same and become a DBA in a minimum required time?"
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Jun 17, 2005
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Apr 16, 2007
I have a sql server (2k sp4), a web server and a development machine.
I need to install sql server reporting services and am confused as to the prerequisites and as to what gets installed where.
Is there a server install and a client install or do I run the same install on both (and deselect what's not required on each).
Sorry it's a bit vague but in my research various people have told me various different things.
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Nov 24, 2004
Hey all,
I couldn't find an answer anywhere on the site, if there is one, could you please let me know where to go? Thanks.
Here goes. We receive large csv files, around a million records a month. What we need to do is:
- Of course, import these records
- Be able to run failry heavy reports on around 3 months worth of data (about 3 million records)
- Wanting to store at least a years worth of data
What I need to know:
- What server(s) spec (CPU, HDD, memory, etc) would we need to import and run reports quite fast. Don't want the reports/imports to take days to run. The reports will need to be run by about 3-5 people at the same time
- What OS and database type should I use (I was looking at Windows/Linux and MS SQL/MySQL)
- If we run these types of reports, can we use the same SQL server to run/store other applications (eg. CRM, etc) with no real impact on performance. There would be at least 20 people using the CRM database at the same time.
Thanks
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Jun 14, 2006
Can 2005 be installed on XP Media Center Edition? I looked on the SQL site,
but it only references Windows XP, not this particular version. Any whitepapers, links, etc., would be especially appreciated.
TIA, ChrisR
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May 9, 2008
What are the minimum requirements for setting up replication ?
i mean, the connection requirements, bandwidth requirements, minimum hardware and software requirements ?
Is it possible to setup a replication across the internet ?
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Jun 6, 2007
I have seen it mentioned that, unlike with the MSDE where DTS runtime was covered, the new SSIS is not covered by the SQL Server 2005 Express.
Does anybody know of an official microsoft web page detailing comprehensively what is required.
As far as I can gather the client will need a full version of SQL Server 2005, enabling the installation of the client tools, which as far as I can tell are required for the running of the SSIS.
This statement could be totally wrong but clear information seems hard to come by and seems mainly hearsay.
Thanks
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Oct 4, 2007
What security settings are needed to allow users to veiw reports using SQL Server 2005 Reporting Services Web interface. We have tried adding users to Active Directory Groups and adding these groups to: the security of the folder containing the reports in Reporting Services and the security of the individual reports in Reporting Services. What am I missing? Does something need to be set when creating the report itself?
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Oct 19, 2007
Hello experts out there,
Just one quick question, will installing reporting services require the server to reboot or sql to restart? I'll do this to a production server and just wonder if I can do while the box is in use.
Thank you in advance. You guys rock!
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Feb 13, 2007
I recently was moved into an applications developers position here at the lawfirm I work at.
Thusfar, its been alot of straight ASP, SQL2000, and Access.
I know the need for me to know .Net is coming, and Ive decided to start playing with ASP.net so I can look a bit proactive..
Ive looked over what I need to get started, in liu of Visual Studio I know of the VS Express options. However, I currently have SQL Server 2000 installed locally on my machine along with IIS 5.1. All the VS Express information Ive found keeps referencing SQL2005 express. Can I get away with using what I already have with 2000? Or if not, can SQL2005 express be run alongside with SQL2000?
Any assistance would be greatly appreciated.
Brian
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Feb 23, 2008
hello,
What are the requirements to install sqlserver2005 in my pc.I am using windows xp sp2 in my pc.
One of my friend said, windows server2003 is compulsory(to get data base functionality in sqlserver 2005 and other features) in local pc .Is it correct?
And i am not getting database features in xp sp2.
Can any one help me?
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Nov 6, 2001
Anyone know where to find some hardware requirements based on database size? Thanks!
peter
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Nov 21, 2000
Hello!
Does anyone know where can i find an information about hardware requirements for SQL-Server 2000. I mean information of different kind of cases (amount of users and transactions etc).
thanks!
Juise K.
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Jan 17, 2003
I had some issues yesterday with the fact that some of the tables I had indexed views for did not have a unique/clustered index. The tables had unique indexes and clustered indexes but not a unique/clustered index. What I was seeing were rows that should have been in the view, not showing up in a regular select but they would showup in a with noexpand hint.
To fix the problem I created a unique/clustered index on each of the underlying table but cannot find that requirement anywhere, is this a requirement and if so can someone tell me where to find it.
Thanks
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Nov 6, 2007
Hi ,
I want to install a new SQL 2005 server. i looked on MSDN, it says to create one or more domain user accounts. That means to create a windows domain. Is it neccessary? All I want is a stand-alone SQL server. right now we are working with SQL 2000 and we want to build a new server with SQL 2005.
Please send me a short feedback.
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Jul 20, 2005
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Jul 27, 2006
Could any one pls Explain about the Four-Part Name Requirement for OLE DB Provider.
Thanks
-Sivaraman Latchapathi
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Dec 15, 2006
Hi all. First, please accept my apologies for any obvious questions, as im very new to this!Anyway, 2 small questions:
I dont have the 'server running' icon in the system tray... The little grey box with a green arrow. have i installed SQL incorrectly?
This leads my to my other question:- After installation (which, i think went fine), i learnt that SQL Server Express cannot run with more than 1 CPU. But i have a Duel-Core. Would this cause problems?
Again, sorry if if missed any previous posts on this.
Thanks
Adrian.
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Feb 19, 2008
I have been advised to design multidimensional model based on the operation data model.
What I have is ----
Couple of documents about the application.
Data model of operational data.
Now I have been told to create a datawarehouse from which any type of wuestion can be answered.
This seems horrendous.
Please guide.
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Dec 26, 2006
We need to create a SQL server login that should not be having permissions to do any changes (CREATE/ALTER/DROP) on database objects like (Tables, views).But should be able to (CREATE/ALTER/DROP) stored procedures. Also using this login they should not be able to (CREATE/ALTER/DROP) databases.
Please let me if this is feasible in SQL Server 2005.
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Oct 30, 2000
I'm developing a website that will be suported by a SQL Server database. The estimated number of records for that database will be around one million. I'm concerned with the possibility of my machine being unable to respond to the needs of such a database so i decided to acquire a new one. How do i calculate the hard disk and RAM i'm going to need for this database to function properly ? I know that i can make a HD prediction by adding the sizes of each field of my database and multiplying by one million but i don't know how much KBs each field occupy (some of them -few- will even be free text fields). And the RAM ?
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Thanks,
Carlos.
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Mar 30, 1999
Hello
I am trying to upgrade our 6.5 server (which approx takes up 18GIG of data/log) to 7.0...it failed since I only have 7GIG space left.
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Oct 7, 2013
Does this look correct for MERGE SYNTAX?I want to INSERT INTO the target table,new service contracts sold with the start date,from historical table by month, only if they don't exist in the target table, doing nothing if matched. . . but the source table is indexed Fiscal Period descending and I have multiple renewal versions of the same contract number in following years. . .
MERGE dbo.SERVICE_CONTRACTS_NEW AS Target
USING (SELECT r.Customer_Acct, r.[Contract], r.Start_Period FROM dbo.ACTIVE CONTRACTS r ORDER BY r.FiscalPeriod ASC) AS Source
ON Target.Account_Nbr = Source.Customer_Acct AND Target.[Contract] = Source.[Contract]
WHEN NOT MATCHED BY TARGET
THEN INSERT (Account_Nbr, [Contract], FiscalPeriod_Start)
VALUES (
Source.Customer_Acct
,Source.[Contract]
,Source.Start_YYYYMM
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Apr 17, 2007
I was trying to install the Developer Edition of 2005 last night, and ran into a strange issue. I specified F:SQLDev as the installation directory, but the installer still refused to install claiming lack of disk space. Checking the disk cost, I saw that it was still asking for about 1.5 GB on my C: drive. I double checked, and I did specify the installation directory as F:SQLDev.
Is there documentation somewhere that describes why it would require space on the boot drive? Or am I missing a switch somewhere or something?
Thanks in advance for any help.
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