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Asterisell instance

  • Linux CentOS 7 x86_64
  • 1 CPU core minimum, 4 CPU cores are optimals in case of millions of monthly calls
  • 1GB of RAM minimum
  • consider additional 200MB of RAM for every additional instance you install on the same host
  • for optimal performances /var directory with Ext4, XFS file-system or other DBMS friendly file-system
  • for optimal performances an SSD disk, but it works rather good also on a traditional HDD disk, thanks to TokuDB engine
  • it is not important a distinct /home partition, because all data is saved on /var partition
  • it must be completely dedicated to Asterisell, because many operating-system configurations will be overwritten by Instances configuration tool
Some benchmarks to use as reference
  • 8500 CDRS/s on dedicated fast host: 4 cores, 8GB RAM, 2xSSD
  • 4300 CDRS/s on shared cloud host: 1 core, 2GB RAM, SSD
  • 2600 CDRS/s on host with slow HDD

Management utility instance

In case you install the Instances configuration tool on the same host containing Asterisell instance, do not allocate too much RAM to the DBMS, because during compilation/upgrading of the application 2-3GB will be used. At the end of the upgrade, the free RAM will be used from Linux for buffering the files with TokuDB engine, so it will be not wasted. You can enable also swap disk space, because code compilation is an one-time operation done only during application upgrade.

Why using a distinct host for Asterisell management tool?

Normal users use the same host for managing and running Asterisell instances.
It makes sense using different hosts in case:
  • you are managing a lot of Asterisell hosts/instances
  • you are an Asterisell developer, and you develop on your main host, and test on distinct VM
  • you want use a cheap Asterisell host with 1-2GB of RAM, and so you offload RAM-hungry operations on the local management host