Classloader & soft links & stat calls

Solaris 7 - WLAS 4.5.1
Our servlet class loader is loading classes that it resolves thru a soft
link, we are having lots of stat calls. We cannot get the performance to a
satisfactory level, does anyone have any idea about performance with respect
to loading classes and the soft linked directory structure?
Thanks,
James

We have a stable 4.5.1 that we are migrating to another server, given that
we have a stable system we want to migrate as-is to the new server, then
migrate from 4.5.1 to 5.1 ... then to 6.x. I cannot convince the client to
go to a new server with a new application server all in one step.
James
"Mike Reiche" <[email protected]> wrote in message
news:3b603e4e$[email protected]..
>
Same answer as to your other question. WLS 5.1.
You can spend weeks or months trying to figure this out or got to 5.1 andget
it over with.
What's the point in solving the problem for 4.5.1 if
1) going to 5.1 is painless
2) you're going to go to 5.1 anyway
Mike
"James Carlson" <[email protected]> wrote:
Solaris 7 - WLAS 4.5.1
Our servlet class loader is loading classes that it resolves thru a soft
link, we are having lots of stat calls. We cannot get the performance
to a
satisfactory level, does anyone have any idea about performance with
respect
to loading classes and the soft linked directory structure?
Thanks,
James

Similar Messages

In which cases can the ABAP statement CALL TRANSFORMATION be used?

Hi friends,
here is my questions with options below.
In which cases can the ABAP statement CALL TRANSFORMATION be used? (T/F)
-To transform as iXML document object into and ABAP data structure using
XSLT.
- To transform an XML document contained in a string into another XML
document
using and XSLT program.
- To get canonic XML display of an ABAP data structure.
- To transform an XML document contained in an xstring into another XLM
document using an ST program (Simple Transformation).
- To transform and ABAP data structure into an SML document using ST.
Kindly give me the expalnation to each statement with either True or False.

CALL TRANSFORMATION is a new language element in ABAP that we can use to <b>call up the transformation</b>.
The type of transformation:
XML to XML
XML to ABAP
ABAP to XML or
ABAP to ABAP is already determined by the two additions SOURCE and RESULT in CALL TRANSFORMATION.
Check this link for more details.
http://help.sap.com/saphelp_nw04/helpdata/en/a8/824c3c66177414e10000000a114084/content.htm
Regards,
Maha

Soft links and endpoints

Hello,
I would be grateful if someone would confirm to me the following:
A soft link always relates to an external endpoint.
Is the above statement true?
Julien.

Soft, hard, and standard links always apply to internal endpoints (external and internal endpoints are defined by the spec in section 5.1.7). They are used to govern connections made by the NMR between service consumers and providers.
External endpoints are used only for endpoint reference (EPR) generation. (External service providers are considered internal endpoints, since they are proxied by the binding components.)

Soft links and inodes

It's my understanding that a unix file consists of three components: a filename, an inode, and the data. So if you create a text file called "original", you get something like this:
original -------> inode ------> data
Then if you create a soft link to the original file, the soft link has its own filename, inode, and data--where the data is the filename of the original file. So for instance, if you use the command:
$ cat soft_link
it traverses the chain:
softlink-->softlink's inode-->data-->original-->original's inode-->original's data
On the other hand, if you create a hard link to the original file, the hard link does not get its own inode; its filename points to the original file's inode. So for instance, if you use the command:
$cat hard_link
it traverses the chain:
hard_link ---> original's inode ---> original's data
and then the original's data is displayed.
However, on mac os x when I do an ls -i on the soft link to display its inode, it displays the same inode number as the original file. Furthermore, if I rm(remove) the original file and recreate it using touch original, the new original gets a new inode number, and the soft_link's inode changes to the new inode. I don't understand that. I expected that the soft_link initially would have a different inode number than the original, and that the soft link's inode would not change when the original was recreated.

You may want to read this page: http://linuxgazette.net/105/pitcher.html
It contains a pretty good explanation of the difference between a soft link and a hard link but it doesn't directly answer your question about the inodes. However, it appears that there's a subtle difference in the way "ls" acts depending on whether you give it a filename or not and depending on whether you use the "-l" option in conjunction with "-i".
Here, with filenames and without "-l" it appears that basic.file and softlink.file have the same inodes:
<pre>
iMacHerman:~/Desktop/temptest steve$ ls -i basic.file
3723769 basic.file
iMacHerman:~/Desktop/temptest steve$ ls -i softlink.file
3723769 softlink.file
</pre>
Yet here, without filenames and using the "-l" option you can see that the softlink.file's inode is different (while hardlink.file is the same):
<pre>
iMacHerman:~/Desktop/temptest steve$ ls -li
total 24
3723769 -rw-r--r-- 2 steve steve 27 Feb 24 08:01 basic.file
3723769 -rw-r--r-- 2 steve steve 27 Feb 24 08:01 hardlink.file
3723768 lrwxr-xr-x 1 steve steve 10 Feb 24 07:59 softlink.file -> basic.file
</pre>
Here using both a filename and "-l" you again get softlink.file's actual inode:
<pre>
iMacHerman:~/Desktop/temptest steve$ ls -li softlink.file
3723768 lrwxr-xr-x 1 steve steve 10 Feb 24 07:59 softlink.file -> basic.file
</pre>
And here leaving off filename gives you softlink's actual inode even though the "-l" option was not used:
<pre>
iMacHerman:~/Desktop/temptest steve$ ls -i
3723769 basic.file 3723769 hardlink.file 3723768 softlink.file
</pre>
So it appears that if you do not use the "-l" option and you give "ls" a filename that it follows the softlink and reports the inode of the original file. Other variations (using "-l" or leaving off the soft link's filename list the soft link's actual inode. This seems a little confusing to me and possibly a bug in "ls"... but maybe there's a reason for it working this way???
Steve
PS - and if you do what you described, delete and then recreate the original "basic.file" it will get a new inode. And if you use the first variation of "ls" (without "-l" but with softlink's filename) then it will indeed appear that softlink's inode changed to match the new basic.file
<pre>
iMacHerman:~/Desktop/temptest steve$ rm basic.file
iMacHerman:~/Desktop/temptest steve$ touch basic.file
iMacHerman:~/Desktop/temptest steve$ ls -i basic.file
3723912 basic.file
iMacHerman:~/Desktop/temptest steve$ ls -i softlink.file
3723912 softlink.file
</pre>
But using one of the other options shows that softlink's actual inode did not change:
<pre>
iMacHerman:~/Desktop/temptest steve$ ls -li
total 16
3723912 -rw-r--r-- 1 steve steve 0 Feb 24 08:29 basic.file
3723769 -rw-r--r-- 1 steve steve 27 Feb 24 08:01 hardlink.file
3723768 lrwxr-xr-x 1 steve steve 10 Feb 24 07:59 softlink.file -> basic.file
</pre>

Link State Routing Protocol Question

"In LSP, one router in each area is designated as the authoritative source of routing information (called a designated router). Each area router receives updates from the designated router" Why need designated router? How it work? Why can?t it just broadcast LSP and leant the routing information without the need of designated router? Is designate router the same as backbone or root area in OSPF? Is "area" concept only be used in Link State Routing Protocol OSPF?

hi...
you will find area topology in IS IS also...
here we are using the Area as well as DR and BDR for reducing the LSA flooding in the area... each router in ospf area will send update to the DR on multicast address and then DR will send the multicast update to all other router in the area... here each and every router in the area have the full adjucancy with DR but they are not in the full adjucancy with any other router ...
hope this will help you
rate this post if it helps
regards
Devang

Report with select list and link to call another report

Hi,
I am trying to do 2 reports (REPORT1 and REPORT2).
The first is a summary report (REPORT1).
This report will display sales figures for the year. Now, I need to have a select list in the result set that will have 2 options, depending on which option is chosen, I want to call REPORT2 with the select list as a parameter. How can I do this ?
Let me try to explain what I did.
I created REPORT1 on Page 100
SELECT YEAR, sum(YTD_SALES), APEX_ITEM.SELECT_LIST(1,'DEPARTMENT','Department;DEPARTMENT,Division;DIVISION') Drilldown FROM SALES_ANALYSIS WHERE YEAR > 2000
GROUP BY YEAR ORDER BY YEAR
I created 2 hidden items namely P100_YEAR and P100_DRILLDOWN
I also made the column YEAR as a link and specified both P100_YEAR and P100_DRILLDOWN as parameters to be passed.
Next, I created REPORT2
SELECT YEAR, DECODE(:P100_DRILLDOWN, 'Department', department, 'Division', Division) dept_div, sum(YTD_SALES) ytd_sales
FROM SALES_ANALYSIS
WHERE YEAR = :P100_YEAR
When I run Report 1, it's fine, when I choose either Department or Division from the Select List and click on the link to call Report 2, report 2 is displayed, but the value being passed for P100_DRILLDOWN is not correct and as a result, I am unable to get correct results for Report 2
Am I missing something ? Are there any alternate ways to do what I'm doing ?
Thanks,
Ashok

Hi Ashok,
The link definition will not know the value selected in the list as it is constructed only when the page is being rendered. You would need to create some javascript to handle this. I've done that here: [http://apex.oracle.com/pls/otn/f?p=267:182]
The link on the EMPNO column has been defined in the HTML Expression setting for the column instead of the Link section. The HTML Expression that I have used is:
<a href="#" onclick="javascript:doDrilldown('#EMPNO#',this);">#EMPNO#</a>And, in the page's HTML Header setting, I have added in:
<script type="text/javascript">
function doDrilldown(empno,group)
var g;
var p = group.parentNode;
while (p.tagName != "TR")
p = p.parentNode;
var x = p.getElementsByTagName("SELECT");
if (x.length > 0)
g = x[0].value;
var url = "f?p=&APP_ID.:183:&SESSION.::::P183_EMPNO,P183_GROUP:" + empno + "," + g;
document.location.href = url;
</script>When a link is clicked, the doDrilldown function is called passing in the EMPNO value and the "this" object (which identifies the object triggering the call). The function starts from that object and goes up in the HTML tag tree to the nearest TR tag (the row tag that the link is on) and then finds the first SELECT list item on the row and gets its value. It then constructs a URL using this and the EMPNO value and performs a redirect to the second page (page 183 in this example).
Andy

Sharing album artwork with fast user switching and soft links

We have 4 users, 4 iPods, 4 sets of playlists. Each has their own account. All the music lives on an external drive and each iTunes is set to store its music in the same shared folder. That all works fine.
Now we're getting into album artwork, and I want to share that too. I found a posting somewhere that suggested a soft link from /Users/Me/Music/iTunes/Album Artwork -> /Volumes/BigDrive/iTunes Artwork. I did that with one user and it worked fine - copied Album Artwork folder and set soft link and voila, all the art. I also set all permissions to allow r/w from everyone.
But when I set the soft link from 2nd user, iTunes shows no art. I can browse all the art files fine from that users Finder.
Thanks for any help!
mac mini Mac OS X (10.4.9) iTunes 7.1.1

And just like that I may have found the solution! IT suddenly occured to me that one of the settings that got changed when we imported my wife's profile was a change to the sleep settings. Previously, I had had my iMac set to never go to sleep, since it shares our media with the rest of the house and runs eyeTV to record TV shows and such. For a little while after my wife's account was imported the settings to changes so that the computer would go to sleep after 15 minutes. I'm not totally sure why, but I think having that set up somehow meant that when we switched accounts my other account just "went to sleep" and therefore stopped sharing the iTunes library. After I noticed the change and switched the computer back to "never" for sleep the problem seems to have stopped.
So perhaps check your sleep settings? That seems to be the only change I can think of that got things working correclty for me. I'll keep digging though and see if I can find any more helpful info. Good luck!

ORA-01403 NO DATA FOUND ERROR AFTER SELECTING PORTAL LINK TO CALL FORM

I have a portal application link that I use to call a form. The field on this
form gets populated based on a bind variable that is passed in by the link.
This was working 2 weeks ago but now when I click on the link to call the form
I am receiving the following error "AN UNEXPECTED ERROR OCCURRED ORA-01403 - NO
DATA FOUND". This happens in more than one application where I set this type
of link to call a form. Anyone have any ideas?!!

Hi Andy,
Thank you very much for your time!
The fields in the form are all right. The fields get filled in perfectly in most of the cases, only those few rows don't :(
However, now that you wrote of the process of row fetching, I think that maybe I have an idea of what is happening. My table has two primary keys (two fields together make the primary key, I don't know how it's called in English), one of them is a date. (I know that this is quite a bad practice, but, much to my regret, I cannot change it.) Now, this date is in YY-MON-DD format, which is used by my language.
One of this dates is from 1800's. As my report shows it, the year gets truncated to the last two character. APEX passes this value into the field of the form using varchar2, and when it tries to cast it back to YY-MON-DD format, then it supposes it's from 1900's instead of 1800's. With 19xx however it doesn't find my field.
Does this sound logical? It seems logical to me, but I am a beginner... :(
Still, if this is the core of the problem, it's most possibly not the only problem, because I have dates from 19xx which can't identify their rows... But I am suspicious because of these date things. If you have any idea then please let me know.
Thanks,
Eszter

More than one style for a single link state?

RH 8 outputting CHM
Hello,
Is it possible to define more than one style for a single link state?
For example, I would like a link in the footer of my master page to be smaller than the links that appear in the body of my topics. I want to retain behavior, and simply change the point size.
I can't simply hand format in Design mode, because my link is within a script. Or, am I missing something easy here?
Thanks much.

I'm pleased to say I figured out how to change the formatting of a hyperlink embedded within a script.
Within the script, I used a var string to reproduce the text in my link. Then I used another var to change the string size.
So, here's the part of my script that produces what I'm after:
var mailDisplay = 'Was this information helpful? ';
var str = 'Was this information helpful?';
var mailDisplay = str.fontsize("1");
Upon generation of the CHM, the script trumps the CSS. It's a beautiful thing.

Statement "CALL SCREEN" is not allowed in this form.

Hi,
Could anyone identify the short dump.
Statement "CALL SCREEN" is not allowed in this form.
There is probably an error in the program
"SAPLKKBL".
This program is triggered in the update task. There, the
following ABAP/4 statements are not allowed:
- CALL SCREEN
- CALL DIALOG
- CALL TRANSACTION
- SUBMIT
Error in
"POSTING_ILLEGAL_STATEMENT" " "
"SAPLKKBL" or "LKKBLU01"
"K_KKB_LIST_DISPLAY"
Regards
Manohar S

Short text
Statement "CALL SCREEN" is not allowed in this form.
What happened?
Error in the ABAP Application Program
The current ABAP program "SAPLKKBL" had to be terminated because it has
come across a statement that unfortunately cannot be executed.
What can you do?
Note down which actions and inputs caused the error.
To process the problem further, contact you SAP system
administrator.
Using Transaction ST22 for ABAP Dump Analysis, you can look
at and manage termination messages, and you can also
keep them for a long time.
Error analysis
There is probably an error in the program
"SAPLKKBL".
This program is triggered in the update task. There, the
following ABAP/4 statements are not allowed:
- CALL SCREEN
- CALL DIALOG
- CALL TRANSACTION
| - SUBMIT
Information on where terminated
Termination occurred in the ABAP program "SAPLKKBL" - in "K_KKB_LIST_DISPLAY".
The main program was "RSM13000 ".
In the source code you have the termination point in line 441
of the (Include) program "LKKBLU01".
| The program "SAPLKKBL" was started in the update system.
This is the dump

Workcenter group link to call URL in new browser

Hi,
using the transaction launcher i configured a workcenter group link to call an URL in a new browser window.
This works.
The requirement is now that in the CRM L-shape the opened workcenter should stay.
At the moment to workcenter is gone at the moment i click this external URL link for the new browser window and i have to navigate back.
Any ideas on this?
Thanks a lot.
Kind regards
Manfred

Hi,
thank you - i know the stateful flag and used it.
But i want the current CRM workcenterpage to stay and not to change.
Thank you
Kind regards
Manfred

Statement "CALL TRANSACTION" is not allowed in this form.

Hi
I have a form in which i want to call a transaction:
CALL TRANSACTION 'VL32N' USING bdc_tab
                                                   MODE    'E'
                                                   UPDATE 'S'
                                                   MESSAGES INTO mestab.
I call this report from within a message and when reaching this statement it fails.
Now i get this error in ST22:
POSTING_ILLEGAL_STATEMENT
Statement "CALL TRANSACTION" is not allowed in this form.
and afterwards this error:
DYNPRO_SEND_IN_BACKGROUND
Screen output without connection to user.
As i read,it is not allowed to call this kind of statement from within a form and we should use something like:
RECEIVE RESULTS FROM FUNCTION but i do not know how because i have never before used such call statements.
thanks

Hi,
The bdc table is filled correctly but the CALL TRANSACTION is not alllowed.I think it is because of the call from the Form ENTRY which is called when issuing an message from my transaction.I have read that it is not allowed to have any call transaction,submit or any other statements like these in a function call,and i think that my form ENTRY is seen as a sort of function module.
Any other opinions?
With my "call transaction" statement i wanted to open the VL32N Transaction and post a goods receipt.Is there any other way to do this?
I get this message in the ST22 Transaction:
This program is triggered in the update task. There, the
following ABAP/4 statements are not allowed:
- CALL SCREEN
- CALL DIALOG
- CALL TRANSACTION
- SUBMIT
But i do not know what is ment by update task.All i use are some "export to memory" statements and this is all.
Any ideas?
thanks.
Edited by: seba seba on Jul 28, 2009 11:22 AM

Soft links and xcode projects

In other unix environments using soft links ("ln -s") is a handy way of "abstracting away" at the file system level what a file or directory actually contains, so that its contents can be easily changed without having to modify the original file or directory. In other words, if I have eg. three versions of the same file, and several projects share the usage of one of those files, I can easily change which version of the file those projects will use by simply making a softlink that points to the file I want, and make those projects depend on that softlink (they see it as a regular file). If I later want to change the file in question, I only need to change the softlink to point to another version of the file.
This is especially useful when dealing with a third-party library that gets regular updates. I can install the third-party library somewhere, with the version number of the library in the directory name, and have a more generic directory name as a softlink (as a concrete example, I could have a softlink named "cocos2d" pointing to a directory named "cocos2d-iphone-0.99.5"). If I update the library, I can install it in a new directory (eg. "cocos2d-iphone-1.0.1") and simply change the softlink to point to the new directory, and then recompile the projects that depend on it.
The problem is that Xcode doesn't like softlinks. I don't know if this is a feature of MacOS X in general, or a quirk in Xcode in particular. The problem is that Xcode doesn't want any softlinks in any of its paths, and instead always resolves where the softlink is really pointing to. Thus if I add, for example, the file "libraries/cocos2d/cocos2d-ios.xcodeproj" to the project, what ends up in the project is actually a reference to "libraries/cocos2d-iphone-0.99.5/cocos2d-ios.xcodeproj". Thus the whole softlink is circumvented, making it useless. If I update the library in question, I have to go through all the projects that use it and change the references to point to the new directory. This causes only needless extra work.
This resolving of softlinks only happens when adding a new file to the xcode project. Xcode doesn't seem to change them afterwards, if they already exist in the project. In the past I could get around this problem by editing the project file directly with a text editor and forcing the path to refer to the softlink. However, all the paths in xcode 4 projects seem to be obfuscated, making this impossible. Another possibility is to rename the directory in question with the name of the softlink, then add it to the project, then restore its original name and then add the soft link.
Is there any better way of doing this?

Hello I have probably exact same problem with source files whereas a constant location (my softlink) points to different version of the sources in a repository. For example:
../MyProject/DependantProjetXyz could point to
../Repository/DependantProjectXyz/V1.0
../Repository/DependantProjectXyz/V1.1
My xcode project is setup with ../MyProject/DependantProjetXyz which is pretty useful as I don't need to update all the include and lib path everytime I update the dependancies.
The main problem I am facing is that if I have a compilation error in the dependancies, xcode isn't able to automatically bring me to the error. It simply open the file and position at the very first line in the file. No highlight.
I am forced to use contextual menu on the error then reveal in the log to find the line number and manually navigate to that line. In other words, I am almost back to good old command line compilation with separate text editor...
BTW, this was all working fine before upgrade to xcode 4.
Was a bug filed on this issue?

Link that calls DB function in report

I have a standard report. I would like to add 2 links to the end of each row with the action by the user.
For example:
Order No Name Action
123 John Doe Approve | Decline
456 Jane Dow Approve | Decline
Where Approve and Decline are links that call DB functions.
How do I begin?
TIA
Scott

Hi Scott,
You can try this
Create an application level item F101_ID
Create 2 appication level processes to call you're stored procedures / functions.
One for Accept and one Decline. F101_ID would probably be the PK of the record you are dealing with or
in the example below "column_name_1"
If you want to use a icon
select .....
'<img src="#WORKSPACE_IMAGES#accept.ico" width="30" height="30" alt="Accept"'
|| 'onclick="javascript:accept(this,'||column_name_1||','||column_name_2||');">',
'<img src="#WORKSPACE_IMAGES#decline.ico" width="30" height="30" alt="Accept"'
|| 'onclick="javascript:decline(this,'||column_name_1||','||column_name_2||');">'
from table_name
if you want to use a URL then use this
select ....
'a href="javascript:accept(this,'||column_name_1||','||column_name_2||');">Accept',
'a href="javascript:decline(this,'||column_name_1||','||column_name_2||');">Decline'
from table_name
On your page definition under HTML header add the following javascript
<script language="JavaScript" type="text/javascript">
function accept(pThis,pSelect,formItem1){
alert("Accepted.");
var l_Return = null;
var url;
var l_Select = html_GetElement(pSelect);
var get = new htmldb_Get(null,$x('pFlowId').value,
'APPLICATION_PROCESS=ACCEPT',0);
get.add('F101_ID',pSelect);
gReturn = get.get('XML');
url = 'f?p=&APP_ID.:108:&APP_SESSION.::::P108_ID:' + formItem1;
w = window.location(url);
return false;
</script>
<script language="JavaScript" type="text/javascript">
function decline(pThis,pSelect,formItem1){
alert("Declined.");
var l_Return = null;
var url;
var l_Select = html_GetElement(pSelect);
var get = new htmldb_Get(null,$x('pFlowId').value,
'APPLICATION_PROCESS=DECLINE',0);
get.add('F101_ID',pSelect);
gReturn = get.get('XML');
url = 'f?p=&APP_ID.:108:&APP_SESSION.::::P108_ID:' + formItem1;
w = window.location(url);
return false;
</script>
Hope this helps
Connor
Edited by: user4505115 on 2010/05/03 1:40 PM
Edited by: user4505115 on 2010/05/03 1:41 PM

How to restore visited link state to unvisited

Hi all -
I have a pseudoclass which nicely shows a gray background
after being
visited.
After clicking in ie6 browser, the links remain gray forever!
I am unable to view in the pre-visited state to show a client
sitting next
to me.
I am viewing on my local machine
There are no cookies being set
Flushing cache doesn't do it
Closing browser doesn't do it
Even rebooting the machine doesn't do it
I guess my question is, "where is my WinXP machine
remembering the visited
state?"
Anybody know this one? Many thanks
CSS follows
a.inactive
{border: 1px solid #000000;color: #000000;text-decoration:
none;padding: 4px
7px
a.inactive:visited
{border-color: #000000; text-decoration: none;background:
#CCCCCC; color:
#000
a.inactive:hover
{border-color: #000000; text-decoration: none;background:
#B30000; color:
#fff

A: How to restore visited link state to unvisited

Michael
Many thanks for the browser information and for polishing the
CSS
It is indeed appreciated.
"Michael Fesser" <[email protected]> wrote in message
news:[email protected]..
> .oO(Ken Binney)
>
>>I have a pseudoclass which nicely shows a gray
background after being
>>visited.
>>After clicking in ie6 browser, the links remain gray
forever!
>>I am unable to view in the pre-visited state to show
a client sitting next
>>to me.
>>
>>I am viewing on my local machine
>>There are no cookies being set
>>Flushing cache doesn't do it
>>Closing browser doesn't do it
>>Even rebooting the machine doesn't do it
>
> Clear the browser history.
>
>>I guess my question is, "where is my WinXP machine
remembering the visited
>>state?"
>>Anybody know this one? Many thanks
>>
>>CSS follows
>>
>>a.inactive
>>{border: 1px solid #000000;color:
#000000;text-decoration: none;padding:
>>4px
>>7px
>>}
>>a.inactive:visited
>>{border-color: #000000; text-decoration:
none;background: #CCCCCC; color:
>>#000
>>}
>>a.inactive:hover
>>{border-color: #000000; text-decoration:
none;background: #B30000; color:
>>#fff
>>}
>
> A bit shorter:
>
> a.inactive {border: 1px solid #000; color: #000;
text-decoration: none;
> padding: 4px 7px}
> a.inactive:visited {background: #CCC}
> a.inactive:hover {background: #B30000; color: #FFF}
>
> should do the same.
>
> Micha

Classloader & soft links & stat calls

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