Networking Delay Causing Mayhem

First, I know that others have reported networking issues in Leopard. I wanted to start a new topic with my specific issue and see if others are having the same problem.
When accessing a website, sometimes there is a delay of about 10 seconds. Think "Contacting google.com" in Safari. This does not happen when in Windows XP. I am connecting to the Internet through a Netgear GS105 Gigabit Switch to a Linksys WRT350N Router to my Cable Modem.
I did a bit of tinkering in Terminal and found the same behavior when doing "ping google.com". There is a delay of about 10 seconds--sometimes--until I start seeing pings. This ring a few bells for anyone out there?

I fixed my problem! I had to remove the Active Directory stuff from Directory Utility. This has totally eliminated the problem. I hope Apple fixes this as I would like to continue to use AD on this system. At least, I have an interim solution. Hope this helps someone else out there...

Similar Messages

Jittery display due to network delay for streamType=live

Hi,
We are using OSMF(Strobe Media Player) that becomes jittery as the network delay between the player and the publisher of the livestream increases. A Red5 media server publishes the RTMP stream produced by an ffmpeg instance to the player.
When the player and Red5 are in the same room, the video display is smooth; when the client is in a different room (same building), the video either displays faster or it freezes and when it recovers, it displays faster than normal.
We believe this is due to our inappropriate values for our player settings.
Our settings are as follows:
bufferTime=0
initialBuffer= 0
expandedBuffer=0
optimizedBuffering =false
When buffering is inactive, the display becomes faster than normal.
When we allow buffering, the display keeps on freezing and then displays faster when it recovers.
Any and all suggestions are much appreciated.
-- Sumita

Hi,
You should be able to find the default parameter values in setup.html.
For live, it is liveBufferTime or liveDynamicStreamingBufferTime, depending on the type of your asset.
My suggestion is to start from 4-10 seconds and tweak from there.
S.

Keep trying to send a message and it wont go through i keep getting a message that says network problems cause code :3 what does that mean

keep trying to send a message and it wont go through I keep getting a message pop up that says network problems cause code :3 what does this mean

SMS Error: Cause Code 3, Error Code 2

Compensation of delay caused by activity

Hi Experts
During the execution phase, it is observed certain activities have taken more duration than the planned.
At this juncture, to cover up the deviation, is there any facility to understand where this lagging can be compensated.
Or, can i use the reduction functionality, to compensate the delay caused by the already executed activities?
warm regards
ramSiva

the quesion is, do you want to compensate the time technically or for your real business case.
Technically you can simply shorten the duration or maintain the remaining duration or forecast fnishdate to compensate the delay. Surely you can using reduction functionality.
In the real life, either the you need more capacity (e.g. instead a person using multipe persons) or the person has to to the night shift.
Kind regards,
Zhenbo

Delay caused by encryption

Hi Expert,
Could anyone enlighted me on the delay time to be occurred after the encryption (AES 128) is enabled? Below please find the existing information for your reference.
Site A:
Router: 7200VXR
WAN circuit: 5M
Case 1: 256K traffic will be sent from site A to site B and last for 5 minutes.
Case 2: 256K traffic will be sent from site A to site B and last for 5 minutes with AES 128 to be in placed.
Site B:
Router: 7200VXR
WAN circuit: 3M
Case 3: 256K traffic will be sent from site B to site A and last for 5 minutes.
Case 4: 256K traffic will be sent from site B to site A and last for 5 minutes with AES 128 to be in placed.
Any reference URL regarding delay caused by encryption would be much appreciated.
Anita

@Joe D.
I'm using LabVIEW 2010. The actual VI is part of a large, complex system that there would be no way for me to upload here. I've made a simple, bare-bones VI, though, that simulates what we need to do and reproduces the problem. The attached VI requires an img1.jpg and an img2.jpg in the same folder as the VI. Note that we could have much more than 2 images, so although in the example VI re-drawing the images in the hidden picture box isn't necessary, it is needed in our actual system.
@Yamaeda
Thanks again for your suggestions. I looked into pict rings, but I couldn't figure out a way to programmatically populate them. It seemed like all the images had to be loaded ahead of time. I tried the .NET PictureBox without success but I'll give it another shot. It just seems unreasonable to me that displaying an image would take that long. It isn't a restriction due to the Computer or OS itself, because I know this can be done in C++ and I think even in MATLAB. It also seems like no matter what I use to draw or show the image, and whether it's in parallel or not, the delay occurs as if's delaying all of LabVIEW's threads no matter what.
Attachments:
imgDisplay_demo.vi ‏52 KB

Estimating the network delay time of the redo transfer - DataGuard

Hi
I have 10.2.0.4 Dataguard setup on a a Solaris server in LA where the primary is in NYC
I am operating with real time redo apply, no delay
I want a way to estimate the network delay of the redo transfer between LA and NYC.
the v$recovery_progress will give me the active apply time which is the apply itsef ( fast)
but my bottleneck is our network .
Is there an easy way to determine the network delay time ?
thanks
Orna

Is "transport lag" in v$dataguard_stats any help to you?
NAME                             VALUE            UNIT                           TIME_COMPUTED
apply finish time                +00 00:00:00.0   day(2) to second(1) interval   25-JUN-2009 16:41:41
apply lag                        +00 00:00:00     day(2) to second(0) interval   25-JUN-2009 16:41:41
estimated startup time           9                second                         25-JUN-2009 16:41:41
standby has been open            N                                               25-JUN-2009 16:41:41
transport lag                    +00 00:00:00     day(2) to second(0) interval   25-JUN-2009 16:41:41Edited by: user600286 on 25-Jun-2009 08:52

Can network setting cause sql*plus logon failure?

During install of verizon service the techs had to alter some network setting to allow the cable connection to work. Afterwards I was unable to connect to oracle database using pl*sql, getting instead an ORA 12514 error.
Is it possible the altered network settings caused this problem? I am running oracle 10g on XP windows.

1. you're not using pl*sql to connect. you're using SQLPLUS to connect.
2. ORA-12514: TNS:listener could not resolve SERVICE_NAME given in connect descriptor
so, verizon changed something, perhaps the "windows\system32\drivers\etc\hosts" file, so that now your TNSNAMES.ORA has the wrong info. check tnsnames.ora, and see if it's using machine name, IP, or "localhost", then give the new, correct info.

Duplicate Network Drive.. causing Mayhem

Hi All,
So I am in a real mess. I set-up a network between to Quad Core Intel G5's using the file sharing options in the system prefs and a gigabit ethernet cable between the machines. I have an external raid on machine A, which I was accessing through machine B, and it was mounted on machine B under Volumes/video_drive. However when I now browse through the Volumes directory using terminal I am the proud owner of video_drive and videodrive1 !! Video-drive is a pale shadow of its former self and only shows partial contents of the actual video_drive or (videodrive1). I have turned off file sharing on machine A, disconnected the ethernet cable, and restarted both machines, however the ghost video_drive still appears in my Volumes directory on machine_B...??
Any ideas? Please Help.

greetings from a sunny morning in sydney australia
ok — i have reformatted the drive using disk utility (connected via USB) to HFS+. i have copied about 50GB of data. all looks good. then i shutdown, remove USB connection and connect to drive via airport>wireless router>switch>ethernet cable>drive. in this mode, files with generic extensions (.mp3, .mov, .jpeg, .doc, etc...) are visible as usual with the usual icons. folders are also normal.
BUT, any file the name of which does not have an extension, and any alias file (not having .alias) has changed to a 'unix executable file', the icon changing to a small black 'terminal window' picture or a what looks like a little creature with big eyes and horns (not kidding!). there also additional files with such icons — desktop DB files and the like.
this is done with only one share (top level, the drive itself) and no users or groups, just an admin login in both times.
so everything works fine, except some kinds of circumstances resulting in weird icons and 'unix executable files'.
thanks again for your patience and assistance

IO delay causes buffered streams to hang

I'm writing an application that uses the network and in order to test under slow conditions I created custom input/output streams that just puts in a delay in the basic read() and write(int b) methods before calling the method for the stream passed in the constructor. This allows me to find problems where the interface hangs under slow conditions etc. very quickly.
The problem is that on buffered streams (I have specifically had trouble with BufferedReader and BufferedOutputStream) it causes the stream to just hang. It works fine without the stream with the delay but with it something is causing a hang. I think it may have something to do with the network because I don't have the problem with File IO. Does anybody know why a delay would cause a buffered stream to hang?

Well the I know the socket has not timed out. I usually set the delay about 1 to 3 milliseconds. This will happen everytime a read() or write(int b) occurs so it is enough to slow things down.
This is a code sample that shows the basic idea for reading in a file:
import java.io.*;
public class Example
static class SlowInputStream extends InputStream
private InputStream in;
public SlowInputStream(InputStream i)
in=i;
public int read() throws IOException
try { Thread.sleep(3); }
catch(InterruptedException e) {}
return in.read();
public static void main(String[] args)
throws IOException
if(args.length==0)
System.out.println("Need filename.");
System.exit(0);
SlowInputStream sis=new SlowInputStream(
new FileInputStream(args[0]));
BufferedReader in=new BufferedReader(
new InputStreamReader(sis));
String text;
StringBuffer temp=new StringBuffer();
while((text=in.readLine())!=null)
temp.append(text);
temp.append("\n");
System.out.println(temp.toString());
I would have posted a networking example but I create a subclass of PlainSocketImpl to so I can wrap all the streams networking streams and this requires to set the bootclasspath, but the above shows the basic technique.
Thanks

Buffered IO / networking delay

I'm trying to test a program to see how it will work on slow networks by creating custom IO streams that put like a 3 millisecond delay before performing the basic int read() or void write(int b).
This works normally and helps me find problem areas, but if I use buffered streams it will sometimes hang. If I just take out the stream with the delays, it works fine.
Can someone tell me why delays would cause the buffered streams to hang when used over the network?

Looking at it further, if I close the stream all the data seems to get there. But just calling flush does not help.

Network Delay while placing image(PDF File)

Hi
i am using following code for placing PDFs and Texts in single text Frame.
if the PDF is in local folder then place works perfectly as desired, if the PDF path is a network path , then a overlap is happening .
i'm inserting the text and pdf in this sequence,
place PDF,
place text1,
place text2,
place text3,
place PDF,
place text1,
place text2,
place text3,
place PDF,
place text1,
place text2,
place text3,
place PDF,
place text1,
place text2,
place text3,
and so on.
at 3rd,4th insertion the overlap is happen.
actual order after placing all the texts and PDF is like this
place PDF,
place text1,
place text2,
place text3,
place PDF,
place text1,
place text2,
place PDF,
place text3,
place text1,
place text2,
place PDF,
place text3,
place text1,
place text2,
place PDF,
place text3,
is there any possibility, to tell system to wait(sleep will cause more delay) until the it places the content and then move for the next text content.
or
is it possible to load the pdf to links and then place pdf from the link?
sample code:
var tframe = app.documents[0].pages[0].textFrames.add ();
tframe.geometricBounds = [0,0,"150mm","150mm"];
var myfile= "C:\\Karthik\\Ellipse.pdf";
//inline.anchoredObjectSettings.anchoredPosition = AnchorPosition.aboveLine;
for(i=0;i<10;i++)
// some network path
myfile= "\\xyz server\\Ellipse.pdf";
                if (i==0)
                                var inline =tframe.insertionPoints[0].place (myfile)[0].parent;
                else
                tframe.insertionPoints[-1].place (myfile)[0].parent;
                tframe.insertionPoints[-1].contents = "\rSample text\rMore sample text\r";

is there any possibility, to tell system to wait(sleep will cause more delay) until the it places the content and then move for the next text content.
or
is it possible to load the pdf to links and then place pdf from the link?
sample code:
You can make the system sleep by calling $.sleep() like this:
$.sleep(milliseconds)
I doubt it will solve your problem, though, because the commands will run in the sequence you program it.
The content might be misplaced because your textframe overflows. Try targeting the story instead when placing.
tframe.parentStory.insertionPoints[-1].place(myfile)
Does that make any difference?

IPhoto Startup Delay cause by WiFi

Symptom/Observations:
Scenario A: Start iPhoto with WiFi turned on.
iPhoto comes up quickly (can even see the thumbnails), but then immediately hangs (beach ball) for 8-13 seconds.
(sometimes you need to click on a photo to display the beach-ball cursor)
Scenario B: Start iPhoto with WiFi turned off.
iPhoto comes up quickly and is immediately usable (no beach ball).
Scenario C: Start iPhoto with WiFi turned on, when you see iPhoto hang (beach ball), turn WiFi off.
iPhoto comes up quickly but then immediately hangs (beach ball). From previous tests, we can expect it to hang about 8-13 seconds. But this time, within 3-4 second after observing the Beach Ball come up, you quickly turn off the Wifi. The beach ball goes away within about 1 second of turning off the WiFi.
I do not put my photos on iCloud. I double checked to make sure that my iCloud profile is disabled for photos. Therefore, I would not expect any WiFi delay when launching iPhoto.
Apple Marketing: This makes your product appear slow, lumbering, and on the verge of a crash.
Apple Programmers: I didn't change any user settings. Hence, your code is what changed the behavior. Was this intentional?
Apple Production Architects: Was this change in product behavior intentional? Did you write down (e.g. document) the change somewhere, such that the consumer would have some expectation as to what they were getting? (sorry, a tool that once popped up ready for use for 10 years, should not suddenly display 10 seconds of beach ball every time I launch it).
User Community: Yes, I plan on sending in a feedback report to Apple after hearing what other people are experiences and whether or not they've found the cause/solution.

I had the same problem - wifi on, launch iPhoto, events visible, 30 seconds of spinning beachball, then everything works. Wifi off, launch iPhoto, everything works instantly. Tried rebuilding the database, no change.
MacBook Pro Mid 2009 model, clean install of Mountain Lion to erased HD, transferred all user info and applications with migration assistant from backup hard drive during install, iPhoto '09 with ca. 2K pictures in library.
What I finally found was this link http://blog.jonahb.com/?p=502
I had OpenDNS servers 208.67.222.222 and 208.67.220.220) set in my Wifi Settings (System Preferences->Network, choose WiFi, click Advanced button, select DNS tab).
Changed to Google DNS servers (8.8.8.8 ad 8.8.4.4) and the spinning beachball problem went away, iPhoto opens instantly with wifi on.
Been working perfectly all day. So far, so good. Hope this helps.

I am using datasocket in seperate vi, with error catching, but network slowdown causes labview to crash without any error message ...

I have a master computer setup as a datasocket server with several vi's that publish. I have about 5 other computers each with a vi that reads the data socket publisher. The interval at which the 5 vi's read is every 15 minutes, concurrently. It seems that when ever there is a network slow down, LabVIEW crashes catastrophically, even though I have timeouts in the datasocket readers. Is this error related to the datasockets not being able to handle the slow down or something else? Should I use another technique - if so - which is more reliable (FTP, TCP/IP?). This bug has been hounding me for several MONTHS.

One thing I forgot to mention - the 5 datasocket readers are also web servers, serving out the front panels to the web after getting updated. Well, after weeks of trial and error, would you believe that if I turn off the web server logging, everything works fine. I have had it off for a week now and no crashes. I first discovered this by realizing that if I turned off the web server everything ran fine (which would be totally useless for my application), so then I searched this site and found an off the cuff remark about the web server logging function causing crashes for an unrelated problem. I figured what the heck, I'll disable it and see what happens. So far so good, I am still keeping my fingers crossed ...

Network Pane causes System Preference to Crash

An unusual problem has cropped up on my Black Macbook 2 GHz machine. Everytime I click on the Network Pane it causes the system preferences to crash.
I've tried everything from rebuilding the permissions, to deleting certain pref files.
I thought I had fixed it the other day when I rebuilt the permissions, but the problem came back 24 hours later?
Has anybody else experienced this problems?
Thanks
T

arg..... tried everything you suggested and didn't work. The weird thing is I can sort of make it work. If I reboot and load system preferences before everything seems to finish loading it works if not it craps out, even after successfully booting it and then restarting it. Here's my activity log. I've pretty much have killed everything I recognize and with the exception of timbuktu that's about all I can see: MenuCal's I've already killed once and that did nothing so it's back in there.
324 pmTool root 0.80 1 1.17 MB 36.46 MB
323 Activity Monitor tlam 2.90 2 10.61 MB 359.72 MB
319 LAServer tlam 0.00 1 6.45 MB 353.09 MB
309 slpd root 0.00 6 1,004.00 KB 30.16 MB
307 lookupd root 0.00 2 968.00 KB 28.09 MB
303 Timbuktu Host Menu tlam 0.00 2 15.07 MB 399.67 MB
293 MenuCalendarClock iCal tlam 0.00 1 7.36 MB 342.03 MB
292 iCalAlarmScheduler tlam 0.00 1 3.65 MB 293.57 MB
291 Microsoft AU Daemon tlam 0.00 2 11.29 MB 376.00 MB
290 Extensis Suitcase tlam 1.20 3 33.64 MB 470.05 MB
289 iTunes Helper tlam 0.00 1 1.68 MB 289.01 MB
288 mdimport tlam 0.00 4 3.21 MB 39.89 MB
284 Finder tlam 27.70 7 32.97 MB 403.92 MB
283 SystemUIServer tlam 0.40 2 10.63 MB 364.11 MB
281 Dock tlam 0.00 2 4.36 MB 360.55 MB
275 pbs tlam 0.00 2 2.18 MB 54.75 MB
274 Timbuktu Host root 0.70 9 11.77 MB 411.59 MB
267 WindowServer windowserver 0.90 3 28.19 MB 351.09 MB
265 loginwindow tlam 0.00 3 4.68 MB 331.58 MB
264 mdimport nobody 0.00 4 2.63 MB 39.50 MB
256 automount root 0.00 3 1.07 MB 28.72 MB
252 automount root 0.00 3 1.12 MB 29.01 MB
249 rpc.lockd root 0.00 1 188.00 KB 26.66 MB
239 nfsiod root 0.00 5 184.00 KB 28.61 MB
225 ntpd root 0.00 1 404.00 KB 27.07 MB
128 translated root 0.00 1 312.00 KB 65.68 MB
113 ATSServer tlam 0.00 2 7.98 MB 83.84 MB
108 mds root 0.00 8 6.50 MB 44.35 MB
101 AppleFileServer root 0.00 2 4.18 MB 33.39 MB
86 coreservicesd root 0.00 3 11.19 MB 42.07 MB
61 crashreporterd root 0.00 1 224.00 KB 27.10 MB
56 blued root 0.00 1 1.95 MB 36.91 MB
46 update root 0.20 1 220.00 KB 26.60 MB
43 distnoted root 0.00 1 804.00 KB 27.01 MB
42 DirectoryService root 0.00 2 2.61 MB 29.69 MB
39 notifyd root 0.00 2 460.00 KB 27.20 MB
38 securityd root 0.00 2 1.94 MB 28.77 MB
37 memberd root 0.00 3 644.00 KB 27.64 MB
36 diskarbitrationd root 0.00 1 1.06 MB 27.11 MB
35 coreaudiod root 0.00 1 1.94 MB 31.01 MB
34 configd root 0.00 3 1.86 MB 29.16 MB
33 cron root 0.00 1 520.00 KB 26.87 MB
32 syslogd root 0.00 1 420.00 KB 26.63 MB
31 netinfod root 0.00 1 572.00 KB 26.92 MB
30 mDNSResponder root 0.00 3 1.13 MB 28.38 MB
29 KernelEventAgent root 0.00 2 624.00 KB 27.18 MB
25 kextd root 0.00 2 1.03 MB 27.54 MB
21 dynamic_pager root 0.00 1 168.00 KB 26.61 MB
1 launchd root 0.00 3 512.00 KB 27.67 MB
0 kernel_task root 2.00 44 93.39 MB 1.22 GB
MacBook Black 2GHz 2GB, Quad Xeon 2.66 GHz 3 GB Mac OS X (10.4.7)

Something similar to "isdn network-failure-cause" command on Cisco 3600

Hi
I have two Cisco 3600 with NM-HDV-2E1 on each chassis. The version of ios is Version 12.3(19)
Sometimes the Cisco sends the 27 (Destination out of order) or the 38 (Network out of order) cause code, which is generally not correct, because most of all the problem of the traffic not passing is that there's no No circuit/channel available.
So I'd like that Cisco would send the 34 (No circuit/channel available) cause code instead of 27 and 38 cause codes.
Can anyone tell me how to do that?
Thanks in Advance.

Hi,
when the router makes confusion about the ISDN channels, you should first upgrade to latest maintenance and then if it happens again produce debugs to show what exactly the condition is, all failing the is matter for TAC because the router is supposed to send the correct cause code when no channels available.

Networking Delay Causing Mayhem

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