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mon: make note about osd df calc bug

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Signed-off-by: Sage Weil <sage@redhat.com>
This commit is contained in:
Sage Weil 2015-04-14 09:35:04 -07:00
parent f3ce75c164
commit 718faf0e69
1 changed files with 5 additions and 0 deletions
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5
src/mon/OSDMonitor.cc
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@ -625,6 +625,11 @@ public:
max_var(-1),
stddev(0),
sum(0) {
// FIXME: average_util should be calculated from the same set of
// nodes that dump_item considers when calculating the stddev. we
// probably need to make two tree traversals for that to work,
// maybe with a callback like precalc_item() that's looks similar
// to dump_item()?
if (pgm->osd_sum.kb)
average_util = 100.0 * (double)pgm->osd_sum.kb_used / (double)pgm->osd_sum.kb;
}