Expired/Deleted data reappears after server is restarted

Feature Discussion Deletion
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6

I have a similar problem to it. I store data in memory and disk (not flash disk). I use community edition 3.2.0. My configuration is here:

namespace my_namespace {
  replication-factor 2
  high-water-memory-pct 90
  high-water-disk-pct 90
  stop-writes-pct 90
  memory-size 3G
  default-ttl 0

  storage-engine device {
    file /opt/aerospike/data/my_namespace.data
    filesize 20G
    data-in-memory true
    defrag-period 120
    defrag-lwm-pct 50
    defrag-max-blocks 4000
    defrag-startup-minimum 10
  }
}

I use java aerospike-client to access aerospike server. This problem occurs in case of below.

  1. insert or update data using aerospike client.
  2. delete data using aerospike client.
  3. aerospike service restart

Tentatively, we follow procedures below:

  1. Backup data using our backup tool before restarting aerospike
  2. stop aerospike
  3. delete /opt/aerospike/data/my_namespace.data
  4. start aerospike
  5. restore data using our restoring tool

But, it is very annoying. Is there a better way?