Re: Wr Rd in the JK status report

2007-11-21 Thread Rainer Jung

Dmitry Beransky wrote:

Hi,

I'm having problems understanding the legend text for Wr  Rd columns
of the JK status report.  What exactly do they mean?  Here's a
concrete example:

  Name Type Host Addr Act Stat D F M V Acc Err CE Wr Rd Busy Max Route RR Cd Rs
 static_1 ajp13 localhost:8012 127.0.0.1:8012 ACT OK 0 1 1 61 9613 0
29 8.3M 48M 0 8 static_1 0

So Wr=8.3M and Rd=48M.  This worker handles all static resources of
the website: images, scripts, styles, etc.  If 48M is the amount of
data sent to the client, what is 4.8M?


Thanks
Dmitry


Yes, here the decision about which direction we mean is probably 
irritating. mod_jk is a reverse proxy and sits between the client 
(browser) and the backend (Tomcat). In this case the parameters are with 
respect to the backend (i.e. the ajp13 communication channel mod_jk 
completely controls). So Wr means the number of Bytes mod_jk sent to the 
backend, and Rd is the amount of traffic we got back.


Both numbers are the raw number of bytes transferred, including AJP 
protocol overhead (and of course including all other http information).


Regards,

Rainer

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Wr Rd in the JK status report

2007-11-20 Thread Dmitry Beransky
Hi,

I'm having problems understanding the legend text for Wr  Rd columns
of the JK status report.  What exactly do they mean?  Here's a
concrete example:

  Name Type Host Addr Act Stat D F M V Acc Err CE Wr Rd Busy Max Route RR Cd Rs
 static_1 ajp13 localhost:8012 127.0.0.1:8012 ACT OK 0 1 1 61 9613 0
29 8.3M 48M 0 8 static_1 0

So Wr=8.3M and Rd=48M.  This worker handles all static resources of
the website: images, scripts, styles, etc.  If 48M is the amount of
data sent to the client, what is 4.8M?


Thanks
Dmitry

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