M
Mark Davies
Guest
Hi, We have a WebClient application that we have been running on classic AppServer for a couple of years now. Our client base is in South Africa and other African regions - I am adding this because the network/internet infrastructure is not as advanced as seen in other countries. We still have clients that connect over ADSL and at times these connections drop quite often. With the classic appserver this was handled quite sufficiently most of the time - it would time out and then retry to connect to the appserver from the client and all would be well. We have recently started to move some of our clients onto PAS (OE11.7.5), but this seems to prove quite painful as we have constant application crashes and this looks like it only happens when there is a drop in the network, especially when the server-side is attempting to send data back to the client. The following is seen in the PAS server log file: [19/11/18@15:16:26.413+0200] P-077299 T-1109899008 1 AS-4 -- (Procedure: 'Consultingwerk.OERA.Query.QueryString' Line:0) SYSTEM ERROR: Memory violation. (49) [19/11/18@15:16:26.413+0200] P-077299 T-1109899008 1 AS-4 MSAS Thread (10) crash in Session AS-4. Potential leak 220MB. [19/11/18@15:16:26.413+0200] P-077299 T-1109899008 1 AS-4 -- (Procedure: 'Consultingwerk.OERA.Query.QueryString' Line:0) ** Save file named core for analysis by Progress Software Corporation. (439) [19/11/14@19:39:58.541+0200] P-106237 T-4139706112 1 AS-17 -- (Procedure: 'OERA/support/proSIretrieve.p' Line:0) SYSTEM ERROR: Memory violation. (49) [19/11/14@19:39:58.541+0200] P-106237 T-4139706112 1 AS-17 MSAS Thread (17) crash in Session AS-17. Potential leak 237MB. [19/11/14@19:39:58.541+0200] P-106237 T-4139706112 1 AS-17 -- (Procedure: 'OERA/support/proSIretrieve.p' Line:0) Connection failure for host ServerIP port 38398 transport TCP. (9407) [19/11/14@19:39:58.541+0200] P-106237 T-4139706112 1 AS-17 -- (Procedure: 'OERA/support/proSIretrieve.p' Line:0) ** Save file named core for analysis by Progress Software Corporation. (439) Note that the Host 'ServerIP' is the IP address where PAS is hosted. We then did a test, we had some of the clients connect to the classic appserver on the same server from the same client network and they are not experiencing this issue when the network drops. So, my question is - Is there any other way that we can overcome this issue in PAS for intermittent network failures? Why does PAS seem so sensitive to network drops as apposed to the classic appserver?
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