Hi team, Does anyone know how to even the data between several data disks ? Another approach could be to prevent Cassandra from writing on a 90% full disk, but is there a way to do that ? Thanks,
Loïc CHANEL System Big Data engineer SoftAtHome (Lyon, France) Le lun. 19 déc. 2022 à 11:07, Loïc CHANEL <loic.cha...@telecomnancy.net> a écrit : > Hi team, > > I had a disk space issue on a Cassandra server, and I noticed that the > data was not evenly shared between my 15 disks. > Here is the repartition : > /dev/vde1 99G 89G 4.7G *96%* /volumes/cassandra/data/data1 > /dev/vdd1 99G 51G 44G 54% /volumes/cassandra/data/data2 > /dev/vdf1 99G 57G 38G 61% /volumes/cassandra/data/data3 > /dev/vdg1 99G 51G 44G 54% /volumes/cassandra/data/data4 > /dev/vdh1 99G 50G 44G 54% /volumes/cassandra/data/data5 > /dev/vdi1 99G 50G 44G 53% /volumes/cassandra/data/data6 > /dev/vdj1 99G 77G 17G 83% /volumes/cassandra/data/data7 > /dev/vdk1 99G 49G 45G 53% /volumes/cassandra/data/data8 > /dev/vdl1 99G 52G 42G 56% /volumes/cassandra/data/data9 > /dev/vdm1 99G 50G 45G 53% /volumes/cassandra/data/data10 > /dev/vdn1 99G 47G 47G *51%* /volumes/cassandra/data/data11 > /dev/vdo1 99G 50G 44G 54% /volumes/cassandra/data/data12 > /dev/vdp1 99G 52G 43G 55% /volumes/cassandra/data/data13 > /dev/vdq1 99G 49G 45G 52% /volumes/cassandra/data/data14 > /dev/vdr1 99G 50G 44G 53% /volumes/cassandra/data/data15 > > Do you know what could cause this, and how to even a little bit the data > between the disks to avoid any disk saturation situation ? Because I > noticed that when approaching 5% disk space on one disk, Cassandra > performance drops. > Thanks, > > > Loïc CHANEL > System Big Data engineer > SoftAtHome (Lyon, France) >
