View cache?

Is there any way to view the cache on a android?

Hello,
type about:cache and press GO - you will see info about cache and cache entries.
cheers

Similar Messages

View Cache, Timeout=Never

We have quite a few search forms, each with a bunch of combo boxes. The combo boxes are fed by lookup tables whose rows change VERY seldomly (is that a word?). We'd like to use <jbo:InputSelect...> to populate these, but would like it to load the values from the database only once - by the first person who hits it. On subsequent hits, it should just populate from the View Cache. For the few times that we change lookup values, we could manually call voObject.clearCache() so the values would load again.
I know how to write this manually by varying the instructions in Online Help's "Populating a View Object with Static Data". But I'm lazy. Instead, I want to set some setting, or write a very small amount of override code in the ViewObjectImpl class that will accomplish the same thing. Ideas y'all?

We have quite a few search forms, each with a bunch of combo boxes. The combo boxes are fed by lookup tables
whose rows change VERY seldomly (is that a word?). We'd like to use <jbo:InputSelect...> to populate these, but
would like it to load the values from the database only once - by the first person who hits it. On subsequent hits, it
should just populate from the View Cache. For the few times that we change lookup values, we could manually call
voObject.clearCache() so the values would load again..
Please see the javadoc for oracle.jbo.http.SharedSessionCookieImpl and oracle.jbo.http.SharedSessionCookieFactory.
These classes may be used to access a shared ApplicationModule which caches the shared, read mostly data. The
javadoc contains instructions for using them. Use is transparent with the exception of having
to declare the jbo.ampool.sessioncookiefactoryclass Configuration parameter for the shared ApplicationModule.
If iterator state is required during a request It may be necessary to synchronize the threads (though the jbo:InputSelect
tag does not look like it does require iterator state). If necessary, you can synchronize on the SessionCookie lock
itself which you can acquire a reference to via SessionCookieImpl.getSyncLock(). In 9.0.3 you will be able to use
the locking mode when acquiring an ApplicationModule to provide asynchronous thread access to a shared
ApplicationModule (oracle.jbo.common.ampool.SessionCookie.useApplicationModule(true /* lock */)).
Hope this helps.
JR

Purpose of Entity / View caches

From research, articles, testing, and what info I've been able to glean off forum and metalink, it appears that entity/view caches are not used to satisfy querying, but to minimize storage of redundant data in memory. In other words, the purpose of the cache is simply to minimize memory used, but does not help query performance in any way.
Is this accurate? If this is the case, it would seem that minimizing caching in many cases might be better for performance than using a cache.
I've asked about the naure of entity / view caching in a TAR -- over two weeks in, still no answer....
B

Brad,
A fundamental design point of ADF Business Components is that we let the database be our global, cross-user shared cache. We make no attempt to try and be the global, shared cache in the middle tier very much by design. The application module defines the boundaries of the current users unit of work, and provides facilities for allowing that unit of work to span multiple HTTP requests with failover protection, etc.
The alternative approach is to try and provide a global, shared cache in the middle-tier, and require the user to consciously clone objects that need to be modified, and then deal with the issues of keeping the global, shared cache up to date when users make changes. This incurs overhead to maintain the consistency of that global cache when users are pounding lots of changes into it. We consciously opted against this approach after studying the way that Oracle Applications applications worked with the database in a typical scenario. The AM's transaction, which holds the caches, is a cache of in-progress work by that user, which can optionally have some of its data kept around for the next client that will use that AM from the pool.
The AM instances are pooled and used in a stateless way, but using an algorithm called "stateless with affinity" which attempts to keep an AM intance "sticky" to the client that used it last if load allows us to do that. This occurs when the user is performing a unit of work that spans pages, so that the AM is being released to the AM pool in the "Managed State" mode instead of the "Stateless" mode.
During the span of that unit of work, a user might use the same LOV's and visit the same screens over and over in the act of completing the job. The caches allow that user to avoid requerying any of that data during the span of that transaction, and generally the caches will contain only the data that is relevant to that user's task at hand.
In 10.1.2, you can use the RowQualifier to filter rows in memory for simple kinds of SQL-type predicates. In 10.1.3, we've added a lot more control for querying over the caches, filtering over the caches, and doing both -- under developer control -- over either or both the cache and the database.
Today, the primary way that the cache comes into play is avoiding database queries when things like association traversal is performed (typically as a part of business logic inside entity objects that need to access related entities to consult properties or methods on them), finding an entity by primary key which is performed for various reasons I've outlined in this blog article...
http://radio.weblogs.com/0118231/stories/2005/07/28/differenceBetweenViewObjectSelectAndEntityDoselectMethod.html
..., as well as avoiding requerying when you re-render view object data that's already been queried during the unit of work.
The entity cache holds the entity instances that the user has queried into the application module instance's transaction. The entity cache is populated by virtue of a view object's SQL statement, or by a direct or indirect call to EntityDefImpl.findByPrimaryKey().
That said, we do support the notion of a shared, read-mostly application module as well. To use a shared application module, you need to set the jbo.ampool.isuseexclusive configuration property to the value false.
Since all users are sharing the same application module, in particular they are sharing the view object instance, and even more in particular, its default rowset's default iterator.
At the present time, for this feature to work robustly, the client code must insure that each user iterating the rows in a view objects inside a shared AM instance creates his own RowSetIterator and does not rely upon using the default RowSetIterator. Failure to do this could result in users messing each other notion of "current row" up.
If you read my article on OTN about VO Performance Tuning...
http://www.oracle.com/technology/products/jdev/tips/muench/voperftips/index.html
you'll see that by avoiding caching when not needed, in some situations you can improve performance.
We hope to make the multi-user, shared-readonly data reading even simpler to take advantage of in the future for shared, read-only data, but it's possible to achieve today with a little work.

How can we change the state of records in view cache and entity cache

Hi everybody,
I am trying to achieve selective rollback, or selective commit. By this I mean that I am looking for a way to change the state of rows in view cache, so that the selective changed rows can be rolled back during comit.
if anyone has tried anything in this please help me.

I agree!
I can't top this approach.
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

Cannot read pre-view cache

At startup I get failure message "cannot read from pre-view cache (förhandsvisningscache in Swedish)" every time. According to the message, the failure is supposed to be rectified at next start-up, but this has not happened. I simply cannot start Lightroom.

Thank You so much! Will try that.
Erik
Skickat från min iPhone
4 nov 2014 kl. 22:48 skrev DdeGannes <[email protected]>:
Cannot read pre-view cache
created by DdeGannes in Photoshop Lightroom - View the full discussion
That message is indicating that four previews have been corrupted. If you delete the previews file Lightroom will rebuild them the next time the files are selected. If you wish you can do them overnight if you have a large catalog. The previews file has the same name as the Catalog file with an extension "Previews.lrdata" see the attached snapshot.
https://forums.adobe.com/servlet/JiveServlet/downloadImage/2-6899669-691558/900-719/Previe wsCacheLightroom.jpg
Please note that the Adobe Forums do not accept email attachments. If you want to embed a screen image in your message please visit the thread in the forum to embed the image at https://forums.adobe.com/message/6899669#6899669
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Are views cached

I have a view say view1
the first time i run it,it returns in 110 sec
the second time i run it,it returns in 10 sec
Are the views cached in oracle.IF so how to disable it
Kindly help

> Are the views cached in oracle.
No. You are implying that a view is some kind of "result set" that is kept in memory.
A view is a SQL statement. That SQL statement is parsed and cached in the Shared Pool. This is called a hard parse. If that SQL statement is already in the Shared Pool, Oracle simply re-uses that copy. This is called a soft parses. A 100,000 hard parses can take many minutes. A 100,000 soft parses can take a few seconds.
Hard parsing is thus a lot more expensive than soft parsing. But for a single query, looking at that query's elapsed execution time only, a hard parse versus a soft parse will not result in a huge difference.
I/O is the most expensive operation on a database. There are two types.
PIOs or Physical I/Os - getting data from disk.
LIOs or Logical I/Os - getting data from the Oracle buffer cache.
A PIO can be a lot slower (and usually is) than a LIO. Typically you will run a query for the 1st time. Data is on disk. Lots of very expensive and slow PIOs.
The 2nd time, with the data in the cache, LIOs are used. A lot cheaper than those expensive PIOs.
Note that an Oracle PIO is not always an actual physical I/O - it simply means that Oracle did not find the data in its cache and called the o/s kernel to perform an I/O. The o/s itself has buffer caches. It may service that PIO call from Oracle by going to actual disk - or it may find that data in its file system buffer cache.
> IF so how to disable it
Why? There are NO valid reasons for doing it, unless you are doing very basic benchmarking.. and even then, that approach to benchmarking needs to be questioned as the approach looks at one specific state only - which does NOT exist as the sole state on ANY Oracle database instance.
Message was edited by:
Billy Verreynne

In Internet explorer I can view temporary internet files, is it possible to view cache files in Mozilla firefox?

In Internet Explorer I can view the temporary internet files - is it possible to view the cache files in Firefox and where are they stored.
Thanks for any help.

Type '''about:cache''' in the URL bar and hit Enter. 
Memory cache device - ===List Cache entries===

Loupe view caching- not even two images?

Is there a way to adjust how many previews are kept in RAM for the loupe?
I've found that most of the time I can't even bounce between two images without waiting for several seconds for the image in the loupe to appear. This is on a first-generation macbook pro with 2GB of ram, no other open applications, and 20GB of disk space free (and just defragmented.) The preview quality slider is set to the middle position. I shoot exclusively in RAW and upgraded recently from a 10D to a 40D; I'm guessing that Aperture only allocates a fixed amount of memory to storing previously viewed images, and the larger 40D images are too big for the default settings.
Sometimes I can go through three images without seeing the "loading" prompt; other times, I hit the arrow keys back and forth between two images, not even moving the mouse to compare two shots, and see "Loading..." for long enough that I can't make a visual comparison between the two images for finer detail. In one word: useless.
Is this a restriction of VRAM? System memory? Graphics processor in the original MBP? Pure "policy" in software, ie, "we will use 40MB of memory to cache previews"? Anything that can be changed via 'defaults'?

Janet,
The loupe is "smooth" panning around the image (except after more than 1-2 adjustments are applied, then it rapidly deteriorates.) The issue is switching between two photos rapidly to compare details such as "who's looking which way" and "what is in focus." I can sit for 20 seconds or more flipping between two images next to each other in the strip, and each time "Loading..." will appear and the loupe will be blank.
I just tested it on a Core2 MBP (2.3ghz, 2GB), and received different behavior. The "loading" delay happens once or maybe twice, then I can repeatedly swap between two images with no "Loading", but two is the limit- seeking to a third causes the first image to drop out of the 'cache'. The newer system has only about ten photos in it; the older system has almost 20GB of 10D images and another ~2-3GB of 40D images. I'm not entirely sure how valid the comparison is, then.
Both systems have 256MB of VRAM, and both are the Radeon X1600 (which is curious- I expected the Core2 machine to have a newer card. I guess it's one of the very early Core2 machines. I wonder if they simply bumped up the clock speed- the original MBP's X1600 was intentionally downgraded by Apple in clockspeed.)
I'm not using sRGB space- I shoot everything raw and have always set my cameras for Adobe RGB. I'm not a new user of Aperture, so I'm aware of thumbnail/preview building etc. I've tinkered with it on other people's machines since v1. I've never witnessed an Aperture crash, but I've only played maybe once or twice a month.
I've also noticed the quality of display in the main viewer window to be exceptionally poor with images from the 40D; it seems very fuzzy, and almost like it's up-sampled from a low resolution version. Sharp edges are very oddly (and poorly) aliased; almost like Aperture is using the preview image from the camera, instead of building its own.
Another thing: sharpness on exported JPEGs, both full size and scaled down,seems downright lousy. Odd...a couple of versions ago, they were too sharp, it seemed.

How to get my catalogue back after a Lightroom view cache error?

LR5 - Been working on a wedding on an external hard drive. While working on it...LR blinks out and closes. Tried to reopen...but keeps saying that there is a catalogue error and that lightroom will try to fix it the next time it fires up. Nope. I tried 8 times and this includes complete reboots...but error doesn't go away. Jump on the forums and they said to delete the Cache folder and then when I reboot that LR would have to recreate that and it would take some time.
I did that....all 100K+ previews....this took some time. I then go to restart LR5 and it is as though the software was brand new....no photos at all....not missing file.....gone! My photos are still on my external hard drive - no harm done. But to start the editing process over again on the two weddings I have on there....would take HOURS!!
IS there a way to get the edits and photos back without re-importing them? I do not have backup LR5 files before the import of this wedding.

John thanks for hanging in there with me! I am a photographer first.....and then a computer technician....like 12th.
I had checked the Recycle bin prior to your message and there is no such file like that in my bin. When I go to the LR file...and click on the Lightroom5 catalogue file....it opens lightroom and has none of my older files in it. I was calling the preview files the data files...sorry I did not know the correct jargon for those files.
It sounds like I may have deleted the original Lightroom 5 Catalog.lrcat. And then according to the forum...emptied my bin. When I opened lightroom again it created another Lightroom5 Catalog.lrcat file. When I click on it....as to open the catalogue...it opens LR with just the 68 photos that I put back into lightroom today for I need to get some editing done. I am not sure if this could have made going back to the way things were even possible. I have two weddings and three family shoots that are coming up on deadline...so I was just trying to get some done before it go too close to the end of my delivery periods.
I had an IT guy come over....and he was kind of lost when it came down to this. He believes all is lost. I was just hoping there was a way of importing the preview files....to regenerate the catalogue....to regain my edits...but if I deleted the lr5 catalogue file....it sounds like I may be at a dead end? Is this correct?

View cache files

I was looking at a page on the web, but now it has vanished. It should be in my cache, and according to about:cache it is. But a hex dump is not really helpful. Is there a tool that will let me look at the contents of the cache as web pages?

EDITED LINK 
I've never used it, but maybe this: https://addons.mozilla.org/en-US/firefox/addon/2489/
 
You need to update your plugins. It is important to keep them updated due to continuing security fixes and improvements in those plug-ins:
*Adobe Shockwave for Director Netscape plug-in, version 10.2
*Adobe PDF Plug-In For Firefox and Netscape (you '''may''' need to update)
*Shockwave Flash 10.0 r45
*Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers
#Check your plugin versions: http://www.mozilla.com/en-US/plugincheck/
#*'''Note: plugin check page does not have information on all plugin versions'''
#'''Update Shockwave for Director'''
#*NOTE: this is not the same as Shockwave Flash; this installs the Shockwave Player.
#*Use Firefox to download and SAVE the installer to your hard drive from the link in the article below (Desktop is a good place so you can find it).
#*When the download is complete, exit Firefox (File > Exit)
#*locate and double-click in the installer you just downloaded, let the install complete.
#*Restart Firefox and check your plugins again.
#*'''Download link and more information''': http://support.mozilla.com/en-US/kb/Using+the+Shockwave+plugin+with+Firefox
#'''Update Adobe Reader (PDF plugin):'''
#*From within your existing Adobe Reader ('''if you have it already installed'''):
#**Open the Adobe Reader program from your Programs list
#**Click Help > Check for Updates
#**Follow the prompts for updating
#**If this method works for you, skip the "Download complete installer" section below and proceed to "After the installation" below
#*Download complete installer ('''if you do NOT have Adobe Reader installed'''):
#**Use Firefox to download and SAVE the installer to your hard drive from the link in the article below
#**On the Adobe page, un-check any extra items (i.e. Free McAfee® Security Scan Plus) then click Download button
#**If you see message just under tabs, DO NOT click the Allow button, instead click below that where it says "click here to download".
#**Click "Save to File"; save to your Desktop (so you can find it)
#**After download completes, close Firefox
#**Click the installer you just downloaded and allow the install to continue
#***Note: Vista and Win7 users may need to right-click the installer and choose "Run as Administrator"
#**'''Download link and more information''': https://support.mozilla.com/en-US/kb/Using+the+Adobe+Reader+plugin+with+Firefox#Installing_and_updating_Adobe_Reader
#*After the installation, start Firefox and check your version again.
#'''Update Shockwave Flash'''
#*Use Firefox to Download and SAVE to your hard drive from the link in article below
#*SAVE to your Desktop so you can find it
#*After download completes, close Firefox
#*Click on the file you just downloaded and install
#**Note: Vista and Win7 users may need to right-click the installer downloaded and choose "Run as Administrator"
#**Note: Most browsers other than IE will also get updated with this one download
#**Note: To update IE, same procedure '''but use IE''' to go: http://fpdownload.macromedia.com/get/flashplayer/current/install_flash_player_ax.exe
#*After installation, restart Firefox and check your version again.
#*'''Download link and other information''': https://support.mozilla.com/en-US/kb/Managing+the+Flash+plugin#Updating_Flash
#* Also see: http://support.mozilla.com/en-US/kb/Installing+the+Flash+plugin
#'''Update Java:'''
#* Download and update instructions: https://support.mozilla.com/en-US

How can I insert into a view cache???

I have a problem in JClient like that:
A form that have 3 JTable:
- Table1 get data from UserTable in DB
- Table2 get data from GroupTable in DB
- Table3 get data from GroupTable in DB
and 2 buttons: btnAdd, btnRemove.
When I select a row in Table1, Table2 will get all records in GroupTable that row in Table1 belonging to and Table3 will get all records in GroupTable that row in Table1 not belonging to.
I want that when I select some rows in Table3 and click btnAdd then those rows in Table3 will be insert into Table2 and remove those rows from Table3. And when I select some rows in Table2 and click btnRemove then those rows in Table2 will be insert into Table3 and remove those rows from Table2.
Can you show me how to show that problem.
Thanks.

Hi,
When do you get this error? Is it while running or while creating the form.
Here is a sample code which inserts a non-database column dummy into a table called dummy. This is done in successful procedure.
declare
l_dummy varchar2(1000);
begin
l_dummy := p_session.get_value_as_varchar2(p_block_name=>'DEFAULT',
p_attribute_name=>'A_DUMMY');
insert into sjayaram903_1g.dummy values(l_dummy);commit;
end;
Please check in your case if the size of the local variable is enough to hold the values being returned.
Thanks,
Sharmila

Discoverer Viewer showing Cache.How to show the updated data on DB

Hi,
Thanks in advance.
I'm am using url to open discoverer report in browser.
http://hostname/discoverer/viewer?cn=cf_a129&event=openWorksheet&wsk=workbookname
I'm getting the report data correctly when i enter the parameter and click go button.
When i close the browser using browser close option.Then I inserted one more data in DB and then generate the same report again.
The report i'm getting is the old one,which dont have the inserted new data.
It might be coz the report i created 1st is been cached and kept.
Is there any way to rerun the query reach time i open the report.
Edited by: 849540 on Jan 2, 2012 2:39 AM

Hi,
You should disable the caching in the application manager.
Go to the discoverer->viewer->cache and uncheck the "V".
Tamir

Monitor SSD cache utilization

Hello, I would like to know how I can monitor (or at least view with powerhsell) the usage of ssd cache in my storage space.
I've created a storage space with 1.7TB of SAS (array controller raid 5) and 400GB of SSD storage (Array Controller RAID1) and used powershell to create a 1 TB virtual disk with 150GB of Read and 5gb of write ssd Cache.
Is there a way to view cache utilization? I would like to know to so we can determine proper cache sizes for highly stressed volumes (hyper-v or other hypervisor with 10gbit connection to storage server)
best regards,
http://www.micral.nl

Hi,
Currently I cannot find a command line for display the used cache.
Get-FileStorageTier could help gets the pinned files, and following 2 commands could help list the total cache size:
Get-VirtualDisk –FriendlyName "<friendlyname>" | Select-Object WriteCacheSize
Get-VirtualDisk | Select-Object FriendlyName, Size, WriteCacheSize
If there is any update I'll added in reply.
If you have any feedback on our support, please send to [email protected]

Cache Refresh for Adapter Engine is not working

Hi,
our adaper engine is not working. At RTW no there are no channels visible and the button "Test Cache Connectivity" leads to a yellow icon for the adapter engine with the error text: "Attempt to fetch cache data from Integration Directory not yet started or still in process".
The error reason is at http://<j2ee host>:<port>/CPACache/history.jsp available: com.sap.aii.af.service.cpa.impl.exception.CPADirectoryCacheException: Couldn't open Directory URL (http://pixd1.digoff.no:55200/dir/hmi_cache_refresh_service/ext?method=CacheRefresh&mode=C&consumer=af.xd1.dat-dof-xi), due to: HTTP 403: Forbidden
The cache refreh request from adapter engine to directory gets an 403 error. What is strange: No problem, to execute that request in a browser, i get the right message, no fault.
I searched for notes or other threads, i could find only <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes/sdn_oss_bc_xi/~form/handler%7b5f4150503d3030323030363832353030303030303031393732265f4556454e543d444953504c4159265f4e4e554d3d373531383536%7d">SAP note 751856</a> , but it is valid for XI 3.0; we are on PI 7.0.
I checked out:
- no user blocked
- all system users have standard authorisations
- reimport of SAP BASIS SWC
- SICF services for XI active
- destination INTEGRATION_DIRECTORY_HMI working
Any idea, how i can get the adapter engine working?
Regards,
Udo

Hi,
There are two ways to display the content of the CPA cache refresh.
1. The Cache-Update Content-XML
Document can be stored in the Adapter Framework database (J2EE schema) for further analysis. Here you have to set the property in the J2EE Visual Administrator tool.
To do so, proceed as follows:
=>J2EE-service SAP XI AF CPA Cache
=> set property trackCacheUpdateXML= true
=> You can now display the cache update XML with the alias CPACache
=> View Cache Update History
=> View Cache Update XML
2. The content of the cache refresh from the Integration Directory intothe CPA cache can be written to an XML file: Here you have to set the property inthe J2EE Visual Administrator tool:
=>J2EE-service SAP XI AF CPA Cache
=> set property J2EE service SAP XI AF CPA Cache cacheUpdateDebugFile = true
=> the CPA cache refresh XML file will be in the server(0) directory search for the following file names:
=> value of the property cacheUpdateDebugFile.deltaif you intend to see the delta refresh accordingly and the value of the property cacheUpdateDebugFile.full if
you intend to see the full cache refresh content
Note: After your analysis, do not forget to reset the properties value to false.
You can delete the XML cache-
refresh table: alias CPACache
=> View Cache Update History
=> Delete History
Also check out the user and its permission.
regards
Aashish Sinha
PS : Reward points if Helpful

Content viewer app ipad space usage

I am using the Adobe Content Viewer app on the iPad for DPS. The four apps/folios I have downloaded in the viewer are 7mb, 195mb, 634mb and 486mb (1.2GB). But when I go to my iPad Settings/Usage it says the content viewer app is using 6.5GB in total. Does anybody know why or how to clear the content viewer cache etc?

On a computer, sign in to http://digitalpublishing.acrobat.com and follow the prompts to verify your email account with DPS. You should then be able to sign in.

View cache?

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