| Variable | USING_EPHEMERAL_DISKS | |
| Description | Whether to use ephemeral disks on all nodes | |
| Default | false | |
The USING_EPHEMERAL_DISKS option should be set to
true for nodes that have bucket storage.
When set to true, data is deleted from
Kafka once the data reaches the bucket storage. Otherwise, if
false, the data is deleted from Kafka once
the data is on a sufficient number of local disk replicas.
While it is not recommened for this variable to be set to
false on a long term basis, it is
convenient to run with
USING_EPHEMERAL_DISKS=false while
migrating to bucket storage. This enables you to validate that the bucket
storage system performs well, but once the bucket storage has been
validated, the variable should be set to
true.
Important
The USING_EPHEMERAL_DISKS option should either be set on
all nodes in a cluster, or on none of them.
USING_EPHEMERAL_DISKS=true