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How to isolate window server issue
I have a Warehouse Management Systems running on window server 2008. It seem slow accessing the WMS at times and I don’t see any issue with the network.
I run Wireshark on the network and see everything is working just fine and run continuous ping using ping plotter show latency within 4ms Avg.
Asking if anyone has any idea on how isolate if the issue is with the WMS application, window server itself or some services on the server that causes the issue.
The window server is hosted on VMWare with 8vcpu and 8gb ram
I run Wireshark on the network and see everything is working just fine and run continuous ping using ping plotter show latency within 4ms Avg.
Asking if anyone has any idea on how isolate if the issue is with the WMS application, window server itself or some services on the server that causes the issue.
The window server is hosted on VMWare with 8vcpu and 8gb ram
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4ms is bad news if you are on wired network...is this a VM or a physical machine ? (ping should be <1ms)
technically, the issue depends on how clients access the WMS over the network, e.g. how a database file is accessed? how is the computing model (client/server, three-tier architecture, web service model etc). please provide more details about how the WMS works with the client program.
ASKER
Hi Jose,
Thanks will go thru the link and check the event log. I am not that experience in window server. I am more of a network guy.
Thanks will go thru the link and check the event log. I am not that experience in window server. I am more of a network guy.
ASKER
Hi John,
It wired but host in a datacenter and access via a L2VPN with a 1 gig connection. I don't see issue with the connection and 4ms is quite Avg based on the distance.
It wired but host in a datacenter and access via a L2VPN with a 1 gig connection. I don't see issue with the connection and 4ms is quite Avg based on the distance.
ASKER
Hi John,
It a VM not a physical machine. I have increase it to 8vcpu and 8GB of Ram and still the same. Intermittent lag . Where client try to access it and it just waiting to be process on WMS.
It a VM not a physical machine. I have increase it to 8vcpu and 8GB of Ram and still the same. Intermittent lag . Where client try to access it and it just waiting to be process on WMS.
ASKER
The client access thru the network via chrome on a laptop or surface pro. The DB is from Microsoft and I tested the network and I see no issue with network.
are the DB (MS SQL Server?) and the web server (IIS?) located on the same server or on different servers across the network?
ASKER
Hi BBao,
The MS SQL is running on different server but IIS is on the same server. I trying to find out what causes the issue so I can request dev team to relook at their end. Cause they keep blaming network issue but I been monitoring the network and see no issue at all.
The MS SQL is running on different server but IIS is on the same server. I trying to find out what causes the issue so I can request dev team to relook at their end. Cause they keep blaming network issue but I been monitoring the network and see no issue at all.
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ASKER
Hi John,
You are right we are using wireless terminal scan directly to the WMS and I have setup a very robust wifi mesh with no dead spot and making sure the signal strength is in optimal condition. I have also been constantly monitoring the wifi env and would receive an alert if there any issue.
I believe the issue is with the WMS or the MS SQL. But unable to pinpoint on it. As I check the cpu process during the incident on the VMWare it just show 50 percent and during peak period 70 percent cpu usage for the WMS server
You are right we are using wireless terminal scan directly to the WMS and I have setup a very robust wifi mesh with no dead spot and making sure the signal strength is in optimal condition. I have also been constantly monitoring the wifi env and would receive an alert if there any issue.
I believe the issue is with the WMS or the MS SQL. But unable to pinpoint on it. As I check the cpu process during the incident on the VMWare it just show 50 percent and during peak period 70 percent cpu usage for the WMS server
ASKER
Hi BBao,
It does make sense on your approach and just to let you know it running on the same subnet. It was setup by the previous engineer.
Thank you so much for helping out I am trying your approach. I hope it will help to isolate it.
It does make sense on your approach and just to let you know it running on the same subnet. It was setup by the previous engineer.
Thank you so much for helping out I am trying your approach. I hope it will help to isolate it.
if the Chrome requests and IIS requests are sent over the same subnet, better test the whole thing during a controlled period of time such as off hours so you can make sure there is no irrelevant traffic having impacts to the test or troubleshooting.
ASKER
Hi BBao,
Yeah that is what being planned now and hope to be able to isolate what the issue is.
Yeah that is what being planned now and hope to be able to isolate what the issue is.
I am afraid there is a short of testing solution but is not easy...you have to setup a Windows Mobile Dev environment (old...) and design a couple of forms with a lot of data manipulation...enter/retri eve/enter/ retrieve.. .this *should* perform lightning fast ...if not then you have a network issue somehow...( i reckon you have Windows Mobile Wireless Terminals)
The easiet check is to design a small normal windows form and RDP to it...There are options in the RDP mobile to match to the form size...this would be much quicker...a bit slower but it should give you good info about the performance
The easiet check is to design a small normal windows form and RDP to it...There are options in the RDP mobile to match to the form size...this would be much quicker...a bit slower but it should give you good info about the performance
ASKER
Hi John,
With the test I did on the network didn't show any issue with the network. It more of the WMS and other internal site like leave system and purchase request system is running okay
With the test I did on the network didn't show any issue with the network. It more of the WMS and other internal site like leave system and purchase request system is running okay
ASKER
I just like to thank you guys for helping me out. Thank you so much for all the help...