Process has Problems connecting to remote server

Tom D · *nix forums Guru Joined: 28 Feb 2005 Posts: 377

I have a process that goes out to a server and does a software update.
Originally it took 60 - 80 seconds to accomplish. It now takes 500 -
1000 seconds to do the same function. Several other box's that do this
same script have not seen this increase. The script will sit at this
function for long periods of time;

Connecting to www.uabc.edu[1xx.xxx.1xx.182]:80...

Then it finally gets the;

Connecting to www.uabc.edu[1xx.xxx.1xx.182]:80... connected.
HTTP request sent, awaiting response... 200 OK

I noticed that the tw value is high on this box as seen in the
/proc/net/sockstat file [tw=65 when the script is sitting waiting to
connect]. A tcpdump of the transaction is full of;

12:41:13.984998 monitor.uabc.edu.33690 > 1xx.xxx.1xx.182.http: . ack 995
win 6958 <nop,nop,timestamp 1503190 884584174> (DF)

Can someone tell me what is happening during this connect? And where to
look next? I should add that once it makes this connect it flys through
the data xfer until it hits the next connect where it sits once again

Tom D · *nix forums Guru Joined: 28 Feb 2005 Posts: 377

whoha wrote:

Google