Learn how to a build a cloud-first strategyRegister Now

x
?
Solved

How many TCP connections are wating to establish a connection to AIX Server

Posted on 2006-11-10
6
Medium Priority
?
3,071 Views
Last Modified: 2013-11-17
Hi

 I am a WebSphere Administrator. My question is how to know how many requests have been waiting to establish a TCP connection to AIX Server.
        I Really appreciate for any help..
0
Comment
Question by:ysrinivas2
  • 4
  • 2
6 Comments
 
LVL 62

Expert Comment

by:gheist
ID: 17923395
no -o somaxconn=1024
is very likely to adjust for slow service

There is no way (lsof, netstat, fuser) to determine connect queue length used on AIX)
Basically if you encounter missed connections on client side rule of a thumb is to increase connect queue.

next is looking at netstat -an for huge send or receive queues for some service.
Apache ( or IBM HTTP Server ) "reverse proxy" offloads websphere HTTP service very well

Ask if you need more help with that.
0
 

Author Comment

by:ysrinivas2
ID: 17930102
hi ghest,

  thanks for your prompt responce.

my question is , when we can get tcp/ip established connections with netstat -an | grep ESTABLISHED is there a way we can get tcp/ip waiting connections. sorry if i am asking same question again.

   Thanks in advance....:-)
0
 
LVL 62

Expert Comment

by:gheist
ID: 17936501
There is no way.
You can consider WebSphere slow if netstat -an shows huge buffers waiting for it. That would lead to guess that it is slow at serving connections too thus needing greater help from operating system for SOMAXCONN.

Basically AIX accepts TCP connection and puts it into queue sized as determined by parameter somaxconn, then service calls accept() and serves connection.
0
Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

 

Author Comment

by:ysrinivas2
ID: 17941315
hi ghest,

  yep , AIX accepts TCP connection and puts it into queue but is there anyway we can get that queue info like ..how many TCP connetions have been waiting in the queue..Thank in advance...

  thanks for your time and patience...........
0
 
LVL 62

Accepted Solution

by:
gheist earned 1500 total points
ID: 17941494
That is impossible.
0
 
LVL 62

Expert Comment

by:gheist
ID: 17960995
In normal system when you see overloading service /like websphere with full receive buffers/ you add connection queue, so that nothing is missed.
0

Featured Post

Vote for the Most Valuable Expert

It’s time to recognize experts that go above and beyond with helpful solutions and engagement on site. Choose from the top experts in the Hall of Fame or on the right rail of your favorite topic page. Look for the blue “Nominate” button on their profile to vote.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Hello fellow BSD lovers, I've created a patch process for patching openjdk6 for BSD (FreeBSD specifically), although I tried to keep all BSD versions in mind when creating my patch. Welcome to OpenJDK6 on BSD First let me start with a little …
This tech tip describes how to install the Solaris Operating System from a tape backup that was created using the Solaris flash archive utility. I have used this procedure on the Solaris 8 and 9 OS, and it shoudl also work well on the Solaris 10 rel…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Suggested Courses
Course of the Month20 days, 19 hours left to enroll

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question