Bolot wrote

Has anyone figured this one out? If somebody posted a solution, etc., please disregard this message.

It seems to be a combination of VM and Squeak networking problem. The problem shows up on NT, but not so much on Macs or UNIX.

The culprit seems to be Socket>>waitForDataUntil: method (called from HTTPSocket>>getResponseUpTo: or PWS>>readRequest). Even if it succeeds, it seems to take an aweful lot of time to complete. We commented it out, and things work faster.

I think I am also having the same problem. I already reported it to the mailing list (Subject: Swiki with 2.5: Saving a page takes very long on Netscape, see posting and answers below as a summary). I am not aware of any fix for the problem.

I reproduced it on my machine at home with Squeak 2.5VM (release build 6) from Sep. 6 1999 under Windows NT with service pack 4. I did the following: I took a fresh 2.5 image and fetched the newest updates. (Squeak 2.5 of August 6, 1999, Last update: 1447) I set up a Swiki called 'bp' using the instructions in PWS class>>howToStart. I started the PWS on port 8099. (netstat -a shows p166:8099 0.0.0.0:0 LISTENING) p166 is the name of my local machine. I started Netscape Communicator 4.03 (German Version) on the same machine. The settings are: Cache: Never, Proxies: Direct Internet Connection (No proxies) I entered the URL http://p166:8099/bp.1. The front page is shown without delay. I click Edit this page..., change the page and click Save. Now it takes 45 seconds until the changed page is shown. In the meantime netstat -a shows two additional TCP connections: p166:8099 P166:1069 TIME_WAIT and p166:8099 P166:1070 TIME_WAIT. It takes some minutes until the connections disappear again.

I did some more testing and once there were more than 90 connections waiting. The connections seem to go away when I close the browsers. The delay always seems to be 45 seconds. It always happens when I save a page. It also sometimes happens when I access the front page. I tested this by continuously clicking Back to the Top. There is no delay when I save a page with Internet Explorer 4.0.

I checked it again with Squeak 2.4 (Last update: 1155). There are also waiting connections but there is no delay when saving a page with Netscape.

I don't know much about TCP/IP networking. So I have no idea how to solve the problem. I am willing to do more tests if someone gives me some hints. I appreciate any help.

Bernhard Pieber

P.S. My first posting and the answers are attached for reference.

Steve Wart wrote

Sorry to report the same problem here; I don't think the browser matters, at least I notice it with IE5. I have also tried the exact same setup with the 2.4 VM/Image, and this problem does not occur.

I've also noticed that the server needs to be restarted periodically, as if the process loop is terminating somehow. I don't think this is a 2.5/Windows problem however, as we seem to have the same problem with our 2.3/Linux Swiki at work.

Bernhard Pieber wrote

Andreas,

I have tried it out with the new VM and I am sorry to report that I still have the same effect with the Netscape Browser. Browsing the Swiki works fine, saving a page takes very long (30 seconds to one minute). I have also tried it with the new image and changes.

Andreas Raab wrote

Folks,

Could somebody try this with the new VM (build 6 - see my previous post)?! It is possible that this solves the problem. If so, please let me know.

Bernhard Pieber wrote

Subject: Swiki with 2.5: Saving a page takes very long on Netscape

I am trying out a Swiki under Squeak 2.5 for NT. I serve to myself on port 8089 so I use http://localhost:8089/myswiki.1 to access the front page. It works well except that when I change the front page and press the Save button it takes about 30 seconds until the page is saved.

This only

happens when I use Netscape 4.5. Under IE 5.0 this does not happen although I use identical proxy settings. So I assume that I am suffering

from some

browser configuration problem?

I use a proxy server but have disabled it for localhost. I think that I have to do that for a Swiki because otherwise it happens that I see old versions when I edit a page more than once. (I would prefer if this would not be necessary. Aren't there ways to tell the proxy server never to cache a Swiki page? I remember vaguely having read somewhere about such a feature.)

When I enable the proxy server for localhost the delay is gone even under Netscape.

Does anyone know why this delay is happening? Can I do anything about it besides moving to IE?

I use the new Windows VM (Squeak 2.5 VM (release build 1) from Aug 30 1999) and I have fetched the latest updates (up to update

number

1419). The proxy server is registered in Squeak also.