Quincey Koziol wrote:
Hi John,
On Apr 12, 2010, at 10:09 AM, John Knutson wrote:
In the mean-time, it seems I can work around the issue by closing and opening
the HDF file again, but being new to HDF5, I'm unsure what the potential
problems are there.
That may be fine, but could you describe your usage scenario a bit more?
Quincey
Okay, we're collecting data in near real time from a number of sources,
identical in all relevant ways. This leads to roughly 100-200
"messages" arriving every 6 seconds. That data needs to be archived,
which we are currently looking at HDF to do.
A small number of applications that use the data are expected to be able
to get current updates of the data as it's being written. Currently,
the data being used is stored in flat files, and are tracked in a
similar (if not identical) method to tail -f. The implementation in HDF
will obviously not be the same, but we need some way to be able to get
file updates at a ~1s update rate or less.
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