Hello,
I tried reproducing the problem that Mateusz Slupny was experiencing
before (stat returning bad st_size value on self-healing) on my own
computer with only 3 bricks (one being an arbiter) on 3.10.0.
The result with such a small setup was that the bug appeared both on
killing and during the self-healing process, but only rarely (once in
hundreds of tries) and only with performance.stat-prefetch turned on.
This might be a completely different issue as on the setup Matt was
using, he could reproduce it with the mentioned option being off, it
always happened but only during recovery, not after killing.
I did submit a bug report about this:
https://bugzilla.redhat.com/show_bug.cgi?id=1444892.
The problem is as Matt wrote is that this causes data corruption if one
is to use the returned size on writing.
Could I get some pointers as to what parts of the gluster code I should
be looking at to figure out what the problem might be?
Thanks in advance,
Miklós
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