Error calling server issue in web client.

Classic Servoy
1

Hi All,

I am facing this "Error Calling Server " issues in web client . It is occuring randomly . we cannot reproduce this issue . When this issue is occurring we see nothing in the servoy logs . I think at this moment the connection between the client and the server is lost .Please find the attached service log document . What is the reason of this issue ? . I am also getting most of the 200 success code in the access log. Does any body else has faced such issue ? . My servoy version is Servoy 6.0.6 . Can any servoy admin setting can help me ?.

Informations :

  1. Servoy version - 6.0.6
  2. Database – postgres 9.0
  3. Server - Amazon server
  4. OS – Windows Server 2008 64 bit
  5. Java - 1.7._04 64 bit ( server mode)

Please provide your suggestion on this .

Thanks,
aksrot.

.service_log.txt (1.72 MB)

2

I see 2 types of errors in the log file that happen from time to time:

java.io.FileNotFoundException: [some file path] (Access is denied)
(...)
at org.jets3t.service.model.S3Object.<init>(S3Object.java:137)
at com.servoy.extension.thirdparty.s3.S3ExplorerProviderFileUpload.js_uploadFileToS3_Watching(S3ExplorerProviderFileUpload.java:314)

and

Caught an AmazonServiceException, which means your request made it to Amazon S3, but was rejected with an error response for some reason.
Error Message:    The specified key does not exist.
HTTP Status Code: 404
AWS Error Code:   NoSuchKey

There is one more exception that caught my interest, but which appears only once - so it’s not likely to cause this problem (we will investigate this exception further [update - this exception was already fixed in 6.0.7]).
The first 2 errors might or might not be responsible… One happens inside the s3 plugin code, the other has to do with some requests to Amazon it seems. Both are tightly related to your config/solution so I cannot say more about them.

But as I said, they might not be responsible either. It would be helpful to notice what action(s) were taken by the user just before the problem surfaced. Maybe you can reach a reproducible scenario…
Does it happen on one browser in particular or is it browser independent?

3

Hi Andrei,

Thanks for your reply . It mostly occurs in IE and mozilla . It occurs in google chrome but it behaves correctly after that . It shows error calling server , but it responds after that . I also encounter this problem at the login time .It is completely random. Will there be some configuration setting which can help me . I could also able to see this issue on servoy 6.0.7.

Thanks,
Aksrot426

4

Maybe it’s the same problem as here.
When you get that “Error calling server…” look in the browser’s JS error console. (in Mozilla FF go to something like Tools->Web Developer->Error Console)