When are Redolog files reset to zero size? Manual reset possible?

As far as I know redolog files contain all stuff which is changed during operation of an Oracle database.
However I wonder if there are events when these files are AUTOMATICALLY reset to zero.
I guess it is when I do a full offline backup.
Is this correct?
Are there any other events when this happens automatically ?
How can I manually reset/initialize Redolog files to an empty state?
Peter

What did you mean empty redo logfile?
if you mean zero size on redolog files....
We can not reset redo log files to empty (zero).
I guess it is when I do a full offline backup.That mean your database offline... no operation, so no redo log generate. but not mean you can make redo log empty anyway...
If you mean redo log file no need for instance recovery.
redo log groups have "INACTIVE" status -> is no longer needed for instance recovery. It may be in use for media recovery. It might or might not be archived.
check from v$log
UNUSED - Online redo log has never been written to. This is the state of a redo log that was just added, or just after a RESETLOGS, when it is not the current redo log.
CURRENT - Current redo log. This implies that the redo log is active. The redo log could be open or closed.
ACTIVE - Log is active but is not the current log. It is needed for crash recovery. It may be in use for block recovery. It may or may not be archived.
CLEARING - Log is being re-created as an empty log after an ALTER DATABASE CLEAR LOGFILE statement. After the log is cleared, the status changes to UNUSED.
CLEARING_CURRENT - Current log is being cleared of a closed thread. The log can stay in this status if there is some failure in the switch such as an I/O error writing the new log header.
INACTIVE - Log is no longer needed for instance recovery. It may be in use for media recovery. It might or might not be archived.;)

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When are renderd files saved ?

pe 11
I want to know when PE saves the rendered files (I mean rendering for editing, not the final rendering for export) and when the program doesn't save the rendered files.
You should expect that PE saves also the rendered files at the moment you save (or/and autosave) but in my project I estimate only 2/10 of the timeline is green after loading the project again. So most rendered preview files are NOT saved in my case ...
So I have to start rendering everytime and this takes than longer and longer before I can start work ...

fredowww66
Again, the preview files generated when you direct the program to give you the best possible preview are not deleted or damaged in their hard drive save location when you save/close a project with the "rendered look" and then reopen it to find the "unrendered look". There appears to be a disconnect between the project and those "rendered files", be those rendered files DV AVI from a SD project or MPEG2.mpeg from a HD project....either that or there is a problem with the indicator line itself programming.
Reports of this issue peaked around Premiere Elements 7 and have presented less frequently from then until now. But, it does happen even today with Premiere Elements 11 and 12 without a real explanation for how, when, or where.The problem has never been confined just to the use of .psd files in Premiere Elements. Today, I revisited the issue specifically for Premiere Elements 11 on Windows 7 64 bit some .psd files versus their .jpg counterparts.
a. When I took 4 .psd files into a project, rendered - orange indicator line to green, saved closed the project and then reopened it, the 4 .psd files presented with orange line over their contents. At the same time, the preview files generated automatically by the rendering process were still alive and well in their hard drive save location.
b. When I took the same 4 .psd files and converted them to .jpg files, and repeated "a", the 4 .jpg files presented with a green line over their contents immediately before save close and immediately after reopening. But, based on the history of this problem, we cannot be sure that will be the case all the time for all the versions with the different computer operating systems.
Yes, in this situation, if you want to render the Timeline content for the reopened project, the program will let us and will generate another batch of preview files to add to the existing ones which appear to be disconnected from the reopened project.
Considerations
1. Ignore and proceed knowing that you saw the best possible preview before the save close of the project. But, if you edit that re-rendered content, you will get the orange render indicator line anyway and will have to render to get the best possible preview of what you just edited.
2. If you do not want to render the whole Timeline with its orange line over it, you can render selectively by setting the gray tabs of the Work Area Bar to span just the content to be rendered.
3. You can render the whole Timeline in the re-opened project.
Some just in case notations...Rendering is not going to improve the quality of the end product. It is just an opportunity to catch a problem sooner than later. It is particularly indicated for titles, transitions, effects, and non native formats.
My take on the situation is that you will need to find a way to adjust your workflow according to what is. Based on history and this issue, there is no evidence to suggest otherwise.
By the way, if you are preparing your images in Photoshop, do not apply the CMYK color model. Premiere Elements (any version) does not support it.
ATR

Quick question: When are xib files loaded?

As applications grow in scope and interface breadth, I wonder if separating out optional interfaces into different nib files could improve performance.
I can't tell if it does, however, or if it supports multiple nib files per project just for organization or something.
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What is the primary performance hit for nib files? Their size, graphical complexity (opacities and stuff), something else?

NIB files are full of archived objects. Using the initWithNib: method of a viewController and remembering to release an IBOutlets in the dealloc method will insure proper memory handling. To get to your question, when you load a NIB it will bring all objects in that NIB into memory. So if you design your whole interface in one NIB, then you are requiring the entire interface to load at once. The main reason to split your interface into multiple NIBs is to avoid this hit. This is more of an issue on the iPhone than on a Mac, but the principle is still the same. And if you create multiple viewController objects and initWithNib: them, then you will have multiple copies in memory. Likewise if you use the NSBundle class to explicitly load NIBs, each load call will create new objects. So if you have an interface element you reuse a lot, you can load it from one NIB many times. But the memory comment still holds true -- each load allocates memory for the NIB objects.

When are RAW files modified?

I know that Lightroom is based on the idea of non-destructive editing.
However, even tho I'm still a LR newbie, it does look to me like there
are a few cases in which LR does modify a RAW file as it came from the
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--Milt--

Milt,
>(This is my first post here. Does anybody else find it odd that the posting software considers "Lightroom" and "metadata" to be misspelled?)
Yes :)
>I know that Lightroom is based on the idea of non-destructive editing. However, even tho I'm still a LR newbie, it does look to me like there are a few cases in which LR does modify a RAW file as it came from the camera (e.g., the NEF bug).
Is the term 'nondestructive editing' being used correctly here? The way I typically see the term used in Adobe's literature and doc is not applicable to RAW files.
Before CS3 Photoshop did/does destructive editing with its filters. With Photoshop filters if you apply certain effects and filters they degrade the image in memory so if you try to apply an opposite filter or undo the effect, tough luck. Nondestructive editing in CS3 (and in Lightroom) allows application of effects and filters in a 'virtual' manner that can be backed out, applied multiple times or changed without image degradation.
None of this applied to RAW files because Photoshop and Lightroom do not touch the *image* bits of any camera manufacturer's RAW file (metadata changes aside). You cannot open a RAW file like a .NEF in Photoshop and save it as a .NEF RAW file -- it has to be saved as PSD, TIFF, DNG or whateverand you can do destructive editing in those formats with filters, rotations, etc. The original RAW file itself, however, always remains intact. So no PS or LR editing can be destructive in that sense.
Lightroom virtualizes all of its edits so you can back out any LR edit without degrading image quality. That is nondestructive editing -- again, of the image itself. That said, changing camera metadata in a RAW file is not something I can see immediate use for, I admit. But even that doesn't touch the actual RAW image bits.
>>For myself, I will not start using LR on anything except experimental copies of my photo library until I am fairly confident I have this list in hand so I can avoid doing the things on the list.
Your call, of course. But the only way to avoid something bad happening to your file is to have a copy of the file somewhere else. A lot of things can damage your file that have nothing to do with LR. I have copies of all my photos on a separate computer. My next step wrt that will be to burn Blu-Ray disks to keep offsite.
I also have 5500 photos that Lightroom is doing quite an amazing job with for me overall. Printing (certainly with titles) is the weakest link in LR (I've made some feature enhancement requests/recommendations for the Print module in that area) but the rest of the program has removed most of the hassle, drudgery and unnecessary expense/waste from photography and made it a truly new, fresh joy again, just like it was for me 30 years ago when I bought my first SLR.
Cheers,
Robert

Why are the File Symbols of miniscule size?

If I control-click and select Show layout alternative (this may be an erronous retranslation from Swedish back to English: hope you can understand me anyhow) I find a screen for e g the Desktop showing various alternatives (Symbol size, space between symbols etc). Also Preview of symbols can be selected. If I select this option, the file symbols shrink to become almost invisible. I have not observed this behavior before. So I don't know what affects this change. Hope you can help me. I have made screen shots showing the difference. But I don't know how to attach them to this post.
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Hello Myorse, Certainly screenshots would have helped. At this point, can suggest that you could try to use the 'slider' of the icon size to adjust the size. I tried to make this smallest on my computer and it reduced to size 16x16, which is small but not 'almost invisible' as you say. Try to move the slider and see if they spring back to visible size.
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Photoshop CS6 1 File with Muliple Canvas Sizes

Hello
I would like to create layers with different Canvas sizes. on Photoshop
on 1 file have Muliple Canvas sizes
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This forum is actually about the Cloud, not about using individual programs
For product specific questions you will do better in the specific product forum
If you start at the Forums Index http://forums.adobe.com/index.jspa
You will be able to select a forum for the specific Adobe product(s) you use
Click the "down arrow" symbol on the right (where it says ALL FORUMS) to open the drop down list and scroll
http://forums.adobe.com/community/photoshop

When round tripping with photoshop cc, i get a saved psd file with my original raw,the problem is these are high file sizes and taking a lot of space,can i stop this?

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I recently downloaded a series of instructional videos. They are in mp4 format and rather large (~500MB on average). When I try and open them with Quicktime (default) they will not play. Are there file size restrictions? Any suggestions would be great

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Try VLC Media Player. It has a reputation for playing just about anything you throw at it.

Increase redolog file size - Merits and Demerits

Hi
Currently, we are in 9.2.0.7.0 oralce version and having redolog file sizes (Mirrlog and origlog) of 100MB.
Now we are planning to increase the size to 200 MB so that we could reduce the number of archive log files.
Can you please let me know what would be the demerits of bigger size in redolog files?
And also let me know the step by step process how to increase the size of redolog files?
Thank you

> I understand what you are saying but in our situation our backup policy is one time online backup and one time offline backup in a week.....Online backup is on Thu and Offline backup is on Sunday.......
>
> In case of system crash if needed we would need to apply archive log files; If we have lesser number of archive logs; recover database would be faster.......correct me if am wrong.
You are wrong.
Ok, let's see an example:
You took your backup on sunday midnight and your DB needs recovery on wednesday.
Meanwhile you created say, 800 M worth of redolog data per day.
That sums up to (monday, tuesday, wednesday) 3x800 M = 2400 M that need to be recovered.
Going with your current setup (100 M redolog size) the largest archivelog file can be 100 M, makes 24 files to restore and recover.
After changing the redologsize to, say 200 M, you only have 12 files to restore and recover.
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All in all you still need to feed the same amount of data to the recovery process.
Apart from this:
if you're discussing short recovery times, than you'd never perform just two data backups a week.
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You' d use the flashback recovery area.
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It's that when the case is there, the DBA is not sure anymore, what do to.
He wonders:
Where the good backups are.
How to get them back from the 3rd party backup tool.
How to check them.
Where to get a different storage system because the original one is broken.
How to figure out what needs recovery
How the tools work
By ensuring that you always master the theory and the how to of restore and recovery - that's how you make it quick and painless (and dataloss-less).
regards,
Lars

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Hello, anyone has any tip about this issue?

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Hi,
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Thanks
KSG

Very quickly I shall try to tell.
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HTH
Aman....

Zero size files in Sender File Adapter

Hello!
I have the problem with my Sender File Adapter (ftp).
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Hi ,
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Adobe Acrobat Pro XI 11.0.06 when I reduce file size or try to optimize, I get this error: The document could not be saved. A number is out of range. I do the exact same thing every month and it works. I did it a few days ago and it worked. I receated the pdf, I renamed it. tried to do it before I imported more pages. no go. the 16 mg pdf will normally reduce to 5 or 6

Hi,
Are you facing the issue with any pdf file?
Please try updating Acrobat to 11.0.7 and check.
You might also want to repair Acrobat and see.
Regards,
Rave

Strange size change when saving ai file as jpeg

Greetings all!
I have a quick question (I believe!). I have a couple of images that I am saving as jpeg files. So, I have noted that today only (it worked fine yesterday) when I go to save the file to web, the size of the image changes from 400 px high to 430 px high. I didn't select anything to make each file change like that. There is a white area at the top of the image (which isn't good 4 my image). When I reduce the size of the jpeg - it reduces the image (so the white area remains).
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If you have images to convert to jpg, use photoshop instead.
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Hi Tayls450,
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Anubha

When are Redolog files reset to zero size? Manual reset possible?

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