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Topic Title: Memory Management with Large Experiments
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Created On: 5/13/2013 10:28 AM
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Answer This question was answered by CS Gleb, on Monday, May 13, 2013 11:45 AM

Answer:

Both 32- and 64-bit Windows 7 have been qualified with the recent versions of E-Notebook Oracle Enterprise 12.x. Please refer to the Release Notes of your version for more information.

There is an experiment size limitation of 12MB by default, set in the Oracle database. This limit is “cumulative”, which means that all the “document sections” (Excel, Word, PowerPoint, PDF, etc.) in a given experiment jointly cannot exceed 12Mb.

Please note that there are good reasons why not to include huge data within one experiment into the database, E-Notebook performance being is one of them. Therefore, we recommend not changing the 12MB limit.

Supplementary Data Management (SDM) add-in for E-Notebook was designed to accommodate large data associated with experiments. In that case, data is actually stored in a file system, and only references are stored in the ELN.

 5/13/2013 10:28 AM
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SRSDRM

Posts: 15
Joined: 5/2/2012

Has anyone seen Out of Memory Exceptions in E-Notebook version 12 - particularly running on Windows 7, x64 and when rendering large experiments (over 20MB)? Are there any important differences with running the E-Notebook client on Windows XP (32-bit OS) versus Windows 7 (x64)?

 5/13/2013 11:45 AM
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CS Gleb

Posts: 179
Joined: 2/24/2009

Answer Answer

Both 32- and 64-bit Windows 7 have been qualified with the recent versions of E-Notebook Oracle Enterprise 12.x. Please refer to the Release Notes of your version for more information.

There is an experiment size limitation of 12MB by default, set in the Oracle database. This limit is “cumulative”, which means that all the “document sections” (Excel, Word, PowerPoint, PDF, etc.) in a given experiment jointly cannot exceed 12Mb.

Please note that there are good reasons why not to include huge data within one experiment into the database, E-Notebook performance being is one of them. Therefore, we recommend not changing the 12MB limit.

Supplementary Data Management (SDM) add-in for E-Notebook was designed to accommodate large data associated with experiments. In that case, data is actually stored in a file system, and only references are stored in the ELN.



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-PerkinElmer Technical Support

 5/15/2013 7:21 AM
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SRSDRM

Posts: 15
Joined: 5/2/2012

I understand what you are saying about the size limit. However, some in our site research community would not concur that a 12MB experiment size is a particularly "huge" amount of data. It would also be worthwhile to know whether the client memory management differs significantly on Windows 7 (x86 or x64) or not. In my very limited comparison it appears that the client running on Win 7 x64 consumes a significantly higher (~2x-3x) VM size versus my XP client - although that could be due to some other factors.

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