The network path was not found

[Raphael Gomes]

Greetings,

We have a rather large .net mvc web application running on a hosting
company that uses a multi machine setup, with several web servers
using a back-end storage for keeping a large number of files submited
by the users. At any given second you can count that pictures are
being retrieved, written, resized or otherwise treated by the system,
and logging (that writes on txt files with date based names).

We're being plagued by a constant problem, however: about three or
four times each day the storage stops delivering the files, which
makes the entire system stop on its tracks. This lasts for about
15~30min, and then the system resumes working.

During the hang-up time, requesting any file on the storage returns
(as seen via the response on Fiddler, for instance) the errors:

The specified network name is no longer available

or

The network path was not found

We did contact the hosting company about these errors, but their
response has been slow. By now, I'm trying to see be 100% sure that
the application itself isn't causing these errors. I'm readying about
deadlocks caused by file writes, but so far I have no luck on the
research. Is there any other causeI should be considering?

Any help would be very much appreciated,

Thanks in advance,

 

[Jesse Houwing]

Hello Raphael,

Greetings,

We have a rather large .net mvc web application running on a hosting
company that uses a multi machine setup, with several web servers
using a back-end storage for keeping a large number of files submited
by the users. At any given second you can count that pictures are
being retrieved, written, resized or otherwise treated by the system,
and logging (that writes on txt files with date based names).

We're being plagued by a constant problem, however: about three or
four times each day the storage stops delivering the files, which
makes the entire system stop on its tracks. This lasts for about
15~30min, and then the system resumes working.

During the hang-up time, requesting any file on the storage returns
(as seen via the response on Fiddler, for instance) the errors:

The specified network name is no longer available

or

The network path was not found

We did contact the hosting company about these errors, but their
response has been slow. By now, I'm trying to see be 100% sure that
the application itself isn't causing these errors. I'm readying about
deadlocks caused by file writes, but so far I have no luck on the
research. Is there any other causeI should be considering?

Any help would be very much appreciated,

Thanks in advance,

File shares have a maximum number of active sessions (can be configured per
share) if you've hit the maximum, new connections are blocked.

make sure you close all file handles for files you no longer need access
to and make sure you have a sufficiently high number of simultanious connections
set for the shares.