I have been collecting stats using _cat/allocation and I noticed that a new
cluster showed a lot of disk being used for a few shards.
When I checked I found that _cat/allocation was very different to df.
For one node _cat/allocation gives:
12 51.2gb 956.5gb 1007.8gb 5 esekilx5170 134.138.165.70 70-1
while df for the filesystem allocated to that node gives:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_big-lv_es_1a
1008G 72M 957G 1% /var/lib/es/data1a
It looks like es is reporting the difference between free and total as used
and ignoring the reserved free space.
Does anyone know if that is the case?
/Michael
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