Throtteling issue

#1
All my throttling values set to 0 but one of my site which get really huge traffic is blocking one directory by litespeed

for ex.

xxx.com is working
xxx.com/form is not working
xxx.com/form/cxcc is working

how this happens. When user count is increasing it block this directory.

Please need help
 
#2
After a while if i reboot server it works again

if i dont reboot server it give throttled error via chrome for only this directory.
it nearly get 100k page view between 8pm to 11pm
every day it block the web site
 

webizen

Well-Known Member
#3
All my throttling values set to 0 but one of my site which get really huge traffic is blocking one directory by litespeed

...
Please need help
pls post your throttling settings (note: soft/hard limit should not be 0).
 
Last edited:

webizen

Well-Known Member
#5
increase connection soft/hard limit to 10000 (default).

After a while if i reboot server it works again

if i dont reboot server it give throttled error via chrome for only this directory.
it nearly get 100k page view between 8pm to 11pm
every day it block the web site
Restart lsws should do (no need to reboot the server) if it is throttling blocks the site.

pls post the throttler error chrome received.
 
#6
it only come back after an hard reset. Lsws reset is not solve the problem

i don not remember the exact error but it was like

Connection_xxxX_throttled

for more information pleas visit chrome://throttled sth. like this.

i newly reboot server next time i should share it with you. but that happens ones in a day when visitor count increasing.
 
#7
I have just take an image from the request page and immediately restart server.
it has been again.
If a computer get in page on last half an hour it allow to show directory. or it come from cache i could not check for error page at the moment.


please help me why it throttle page ?
or does it log to some where for why it throttle
 

Attachments

webizen

Well-Known Member
#8
I have just take an image from the request page and immediately restart server.
it has been again.
If a computer get in page on last half an hour it allow to show directory. or it come from cache i could not check for error page at the moment.


please help me why it throttle page ?
or does it log to some where for why it throttle
It doesn't look like Litespeed throttling it.

When it happens again, do following to help troubleshoot:

1. check EAProc WaitQ in Admin CP => Actions => Real-Time Stats
Does that stay in zero? If not, check Max Connections in lsphp5 External App (Admin CP => Configuration => Server => External App => lsphp5) and make sure PHP_LSAPI_CHILDREN environment match it.

2. run 'dmesg' from command line
See if you get anything like 'iptable full'. If so, you need to increase conntrack table size.

3. run 'top' and post the screenshot here.
 
#9
Max Connections is 2000
and PHP_LSAPI_CHILDREN is 2000 also
PHP_LSAPI_MAX_REQUESTS is 20000


dmesg result is attached

Top result attached below.
 

Attachments

#10
We disable iptables because we have a firewall hardware (Juniper ssg) but when we first see this error we get server out of the firewall and it goes on occuring.

so the problem should not be firewall and also if i unninstall litespeed it does not happen
 
#11
it has been happened again
I take error :

Error 139 (net::ERR_TEMPORARILY_THROTTLED)
chrome://net-internals/#httpThrottling

i got this for only one directory.
And i try restart lsws it did not resolve issue i made a reboot it solved for now again.
If this error goes on i will not use litespeed anymore
 

webizen

Well-Known Member
#12
Max Connections is 2000
and PHP_LSAPI_CHILDREN is 2000 also
PHP_LSAPI_MAX_REQUESTS is 20000


dmesg result is attached

Top result attached below.
Max Connections is too high. Default 35, you may raise to 50 - 100 if EAProc WaitQ in real-time stats is non-zero.

The top screenshot is too small. Pls post a bigger one.
 

webizen

Well-Known Member
#13
it has been happened again
I take error :

Error 139 (net::ERR_TEMPORARILY_THROTTLED)
chrome://net-internals/#httpThrottling

i got this for only one directory.
And i try restart lsws it did not resolve issue i made a reboot it solved for now again.
If this error goes on i will not use litespeed anymore
It seems to be related to the web page

http://dev.chromium.org/throttling


Chrome 12 and onwards implements a mechanism that is intended to prevent distributed denial of service (DDoS) attacks from being perpetrated, maliciously or accidentally, by web pages and extensions running within Chrome.
 
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