We are using Cassandra 3.11.4 cluster of 3 nodes in production. We have around 325 GB of data replicated on these nodes. One of cassandra nodetool status is showing negative value. Our production traffic is working fine, Any help on this is appreciated.
nodetool status
Datacenter: dc1
===============
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns (effective) Host ID Rack
UN IP1 325.28 GiB 256 100.0% 89388cd276b0 rack3
UN IP2 -61385108034 bytes 256 100.0% 1942a31c3865 rack1
UN IP3 313.81 GiB 256 100.0% 8bdf-bae2447e92ec rack2
Sequence of events:
We were facing performance issue recently, so we changed readahead value of OS to 8KB and restarted that node. I am not sure if this has affected the nodetool value on that particular node. Now, I have changed the RA values on other nodes as well, waiting if that affects other 2 nodes as well.