Hi all,

Currently *DFSInputStream *doen't allow reading a write-inprogress file,
once all written bytes, by the time of opening an input stream, are read.

To read further update on the same file, needs to be read by opening
another stream to the same file again.

Instead how about refreshing length of such open files if the current
position is at earlier EOF.

May be this could be done in *available() *method, So that clients who
knows that original writer will not close then read can continuously poll
for new data using the same stream?

PS: This is possible in local disk read using FileInputStream

Regards,
Vinay

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