Poor performing DataStage server - 'hanging' connections
Moderators: chulett, rschirm, roy
Poor performing DataStage server - 'hanging' connections
Hi All,
We are running an instance of DataStage 7.5 on a Linux box with 4 CPUs.
The box is accessed both locally in the UK, and by a team in India. Since the team in India came on line, the performance of the box seems to have degraded badly. The slow down happens over a couple of days, and can normally be resolved by stopping/restarting DataStage - and clearing 'hanging' processes.
I have had the Unix admin monitor the box during these slow times and all appeared to be fine - CPU not being hammered, plenty of disk space free etc.
However, what we do have is several (sometimes tens of) sessions appearing as ESTABLISHED (checked using netstat -na | grep 31538) - even after everyone has logged off.
Is it possible that it is these sessions, or something associated with them, that causes the loss of performance?
I am told that the developers in India frequently get 'broken connection' messages requiring them to log back in - so this is likely the source of these extraneous sessions.
Thanks in advance.
S
We are running an instance of DataStage 7.5 on a Linux box with 4 CPUs.
The box is accessed both locally in the UK, and by a team in India. Since the team in India came on line, the performance of the box seems to have degraded badly. The slow down happens over a couple of days, and can normally be resolved by stopping/restarting DataStage - and clearing 'hanging' processes.
I have had the Unix admin monitor the box during these slow times and all appeared to be fine - CPU not being hammered, plenty of disk space free etc.
However, what we do have is several (sometimes tens of) sessions appearing as ESTABLISHED (checked using netstat -na | grep 31538) - even after everyone has logged off.
Is it possible that it is these sessions, or something associated with them, that causes the loss of performance?
I am told that the developers in India frequently get 'broken connection' messages requiring them to log back in - so this is likely the source of these extraneous sessions.
Thanks in advance.
S
Them having their own local copies of DataStage is a bad idea, you really need to look into setting up a shared Citrix-type server locally and have them connect thru that. Would go a long ways towards solving the speed issue on their end and the disconnects.
-craig
"You can never have too many knives" -- Logan Nine Fingers
"You can never have too many knives" -- Logan Nine Fingers