DSXchange

There are few scenarios where our process is failing with File not found error, though file is already available in that location with proper access.
When we resubmit, it will get complete without any issues.

We are seeing this behavior mainly in execute command activity stage, where are taking word count, reading via cat etc.

Any thoughts ...

Not a lot to go on. However, whenever I see a problem that goes away by simply rerunning the process in isolation (rather than as part of a larger process) then I see a resource issue. In your shoes I'd start by checking kernel parameters, things like the number of open files allowed.

Are you on a GRID environment where your execution could get dispatched to different hosts each run? (perhaps the mount is not exposed to one of those hosts)

Or that.