keronii.blogg.se - Ssrs report file extension

#SSRS REPORT FILE EXTENSION LICENSE#
#SSRS REPORT FILE EXTENSION FREE#

There is a paid third party from Telerik that might do that: ġ. The idea is to avoid loading entire report into memory, and the OpenXML SDK cannot write directly into the Response stream. Note: We used the disk due to implementation constraints.

Send the Excel to the browser, in chunks of bytesĪs you can see, at each step we avoid loading entire data in memory, and read, process, save is done row by row, or in chunks of bytes.

Create the Excel (row by row), save each row on disk.

Read data from DB row by row, save each row to disk.

So now the report has an XML on disk datasource, and does not connect to the DB directly.

In order to avoid needing to go to DB twice (View & Export), we save DB data as XML, and use them as data source for both View / Export.

Write our own Excel Exporter that would read data straight from DB, format it based on SSRS report definition, all this by processing data in chunks, without loading entire data / Excel in RAM memory.

Custom Export (the focus of this article).

This adds new concerns, such as creating custom authentication for multi-tenants clients, and would overload our DB servers, if you are not prepared to offer your clients a Self Service BI solution.

This is a powerful BI solution from Microsoft, but is extremely expensive, and it is more suitable for Self Service BI.

Besides the time to port the reports to a new Reporting solution, I searched two of them and did not seem to have fixed the Out of Memory issue.

This was not flexible enough to avoid loading the entire data in memory.

#SSRS REPORT FILE EXTENSION LICENSE#

Imagine that an SQL server license costs $14,000 for each CORE!.Installing SSRS on each new server requires an extra SQL Server license.

#SSRS REPORT FILE EXTENSION FREE#

If your business is already using SQL Server, it has a free SSRS license, to be used on the same server with SQL Server.This was not feasible, since even 750 Gb were not enough for SQL Server + SSRS.Load test, 13,000 rows, VM with 2.5Ghz, 1 Core, 2 logical processors, 8 Gb RAMĬonclusion: With new Export we could serve 10 times more concurrent users (Default Export was consuming all server resources with 5 concurrent users, with Custom Export we were able to server 50 concurrent users, and still not getting Out of Memory exception!) Possible Solutions Researched: Basic test, 1 million rows, VM with 2.67 Ghz, 2 Cores, 2 logical processors, 16 Gb RAMī. Here are some metrics comparing the default SSRS export with a custom built one:Ī. However, with few adjustments the approach can be used for other Reporting solutions too, or you could create an Excel Exporter package to be re-used for different areas of your business. Note: This article is focused on Microsoft Reporting Services (SSRS), because it is coming with SQL Server as free, it is a mature solution (was first released in 2004), and has a lot of features. If your answer is YES to any or all of these questions, then I propose an efficient solution for you, by implementing your own Custom Export.

(We actually had this use case for a 750Gbs RAM server! This is caused by the fact that most Reporting solutions will create the Excel in server memory before downloading, which takes few Gbs RAM for each user’s Excel file!)

Have you encountered having multiple users downloading a large Excel file, and ending up in Out Of Memory exception?.

(Excel is still the default choice for Data Analysis, so it’s likely any business will offer the possibility to Export their report to Excel format.)

Do your users Export their data in Excel?.

(Most of developers have, since a business without Reporting is blind.)

Have you ever worked for a client who has Reporting for their data?.

Let’s start off with a few simple questions…