URL Hashing + Sticky, not optimal.
Gurus,
Had just deployed an ACE for my customer for the caching servers.
We used URL hash and Sticky , after some monitoring we find that 1 server gets 15K connections, another one gets only 5K.
Now its to be understood that due to the erratic internet behavior of users the URLs cached are getting accessed in this disproportionate way.
Now, for cache servers the URL hash is the best predictor, can we try anything else or its going to be as it is.
Have advised for "application request/response predictor" for in case the servers get loaded beyond a point.
let me know your views.
Cheers
Shukla.
Gilles,
Appreciate your reply, had advised the client the first time, still will havent tried ..
couple of things :
1. If i do max-conn with URL hashing, if user-A is going for url-A which is in cache-A and ACE has reached its max-conn value, will it for the same URL direct is towards cache-B with a new entry of url-A (which will in turn start making multi servers cache the same URL bcos of max conns) ??
2. the second hash method we proposed was for "applic request/response" , im not sure how this predictor will work or be beneficial against URL hash.
and im hunting for a doc which explain these predictors in depth ... not just the definitions. As such insights give u an edge when u don't have a test bed for yourself.
awaiting optimistically.
Cheers
Shukla.
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On Fri, Oct 10, 2014 at 11:31 AM, airwolfke1 <[email protected]> -
Question:In Adobe Acrobat XI Standard-sticky notes
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URL class is not being garbage collected
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Map$Entry[]->java.util.HashMap$Entry->java.net.URL
I do not an instance of HashMap in my class.
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or the
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chain of class SoftCache.ValueCell
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Sticky Notes in a pdf file cause ie7 crashed.
This is a very interesting bug.
System version: Windows XP with SP3
Adobe Reader Version: 9
IE version: IE 7
Files needed for testing:
a pdf file (note.pdf) with Sticky Note displayed.
a html file (note.html) which has a url link to note.pdf
Action which causes the crash:
1. Open note.html in a new IE window
2. Click the link to open the note.pdf in a new window or a new tab, then close it
3. Click AGAIN the link to open the note.pdf in a new window or a new tab, then close it
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Check the Error Event, it said:
Event Type: Error
Event Source: Application Error
Event Category: None
Event ID: 1000
Description:
Faulting application iexplore.exe, version 7.0.6000.16850, faulting module msvcr80.dll, version 8.0.50727.3053, fault address 0x0001e898.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 6c707041 74616369 206e6f69 6c696146
0010: 20657275 78656920 726f6c70 78652e65
0020: 2e372065 30362e30 312e3030 30353836
0030: 206e6920 6376736d 2e303872 206c6c64
0040: 2e302e38 32373035 30332e37 61203335
0050: 666f2074 74657366 30303020 39386531
0060: 0a0d38
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hi ,
i am using oracle 10g
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and i have a table with few 100s of records -- small_table
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what i dun understand is how come the view by itself is fast but not when linked to another table ?
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tks & rgdshi ,
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NESTED LOOPS Cost=1872 Cardinality=1 Bytes=119
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MAT_VIEW ACCESS BY INDEX ROWID Object owner=DA Object name=PI Cost=835 Cardinality=4 Bytes=248
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INDEX RANGE SCAN Object owner=DA Object name=PI_IDX1 Cost=831 Cardinality=4
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INDEX RANGE SCAN Object owner=DA Object name=GE_IDX1 Cost=1 Cardinality=1 Bytes=20
VIEW PUSHED PREDICATE Object owner=DA Cost=3633 Cardinality=1 Bytes=13
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MAT_VIEW ACCESS FULL Object owner=DA Object name=RCP Cost=69 Cardinality=9623 Bytes=76984
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I really like the new Sticky Notes application, but I would like that it would have opacity options, just like the old sticky notes sidebar gadget on Vista. My sticky notes look really out of place in my desktop with all my semi-transparent gadgets, and they block my wallpaper.
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Creating Your First Gadget.url:
Rating posts helps other users
Mark L. Ferguson MS-MVP -
Hi All
I had an issue with ACE 2 year before where..sending all youtube traffic to same cache while using URL hash. I had below response from Cisco TAC..
Any1 knows if the new image resolved this...?
Regarding your question about the used predictor and "splitting" the requests going to youtube to be handled by two caches, please note that the URL hashing will hash the domain name up to the "?" only, so we unfortunately cannot distinguish the caches to which to send the request when using this predictor method. The "?" is the default URL parsing delimiter.
Therefore, what we could try is changing the predictor method to another type, for example hash destination|source address or round robin to verify if the loads gets distributed among the caches more evenly.
There, we can see that you can specify a begin- and end-pattern to look
for a specific pattern within an URL, too, however, as already stated,
the hashing has no effect after the "?".
Regards
Sameer ShahThe ACE module and ACE 4710 appliance were enhanced so that the url hashing predictor now includes the url query seen after the '?' delimiter.
ACE module: A2(2.1) and later (BugID CSCsq99736)
ACE 4710: A3(2.2) and later (BugID CSCsr30433) -
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How do I search for sticky notes in a PDF doc?
Several people (at work) have commented on a 440-page document that I created, using sticky notes to write their comments in. When I first open the document, the sticky notes are all closed. The icon for a closed sticky note is pretty small and not brightly colored, so they're easy to miss when scrolling through hundreds of image-heavy pages. I am hoping that it's possible to search for each occurrence of a sticky note.
If there is no way to search for the notes, is there a command I can use to open all the notes in the file (in one action) so that they are larger and easier to spot?
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Joyce.Out the gate you've a problem.
The Acrobat 8 product family passed into "End of Support" many years ago (well before the release of Windows 8).
"End of Support" means -- well, just that eh.
The Acrobat 8 product family is not compatible with Windows 8.1, 8 or 7.
The Acrobat XI product family is compatible with Windows 8 / 8.1.
Regarding Comment and Mark Up Annotations:
With Acrobat 8 Pro use the "Comments List".
Same wit Acrobat 9 Pro, X Pro and XI Pro.
May be available with the various versions' "Standard" release.
The contents of a Comments List can be exported to a PDF report.
The filter an be used to display specific characteristics / attributes which then become the reports content when you output a report.
Having "8" the Help PDF file got loaded with the install of "8".
Use it to review the information provided on the Comments List.
Be well... -
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