Not able to verify Aerospike installation on Ubuntu 16.04

Ubuntu 16.04.3 would use systemd service for startup. We may need to update the install doc.

Please see following for an up-to-date info on stopping/starting a debian based system with systemd.

Here are the systemd command lines:

Stopping aerospike:

$ sudo systemctl stop aerospike

Starting aerospike:

$ sudo systemctl start aerospike

`

Verify process is running:

$ `sudo systemctl status aerospike`

● aerospike.service - Aerospike Server
   Loaded: loaded (/usr/lib/systemd/system/aerospike.service; disabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/aerospike.service.d
           └─aerospike.conf
   Active: active (running) since Thu 2018-06-14 14:11:04 PDT; 7s ago
  Process: 27538 ExecStartPre=/usr/bin/asd-systemd-helper (code=exited, status=0/SUCCESS)
 Main PID: 27545 (asd)
    Tasks: 140
   Memory: 1.1G
      CPU: 3.816s
   CGroup: /system.slice/aerospike.service
           └─27545 /usr/bin/asd --config-file /etc/aerospike/aerospike.conf --fgdaemon

, cli and asmonitor are obsolete tools and have been completely replaced by aql and asadm Seems the documentation is lagging a bit.

Please see:

https://discuss.aerospike.com/t/list-of-aerospike-tools-to-be-deprecated-mid-may-2016/2863/2

Logrotate is also not configured by default on a systemd system. You can configure logrotate by following this guide:

https://www.aerospike.com/docs/operations/configure/log/logrotate.html#logrotate-policy-on-systemd-environments

or you could use journalctl for logging.