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Tuning Control Center

Tuning for all instance sizes

  • In /etc/default/serviced on the Control Center master, set GOMAXPROCS to half of the value of the CPU core count.
  • In /etc/nfsmount.conf on the Control Center master, set Defaultvers=4.0

Tuning for medium and large instances

  • Confirm that the Control Center master has at least 8 CPU cores and 32 GB of RAM. If so, make the following changes proactively:
    • Immediate change: echo 1 > /proc/sys/vm/swappiness
    • Permanent change (requires restart to take effect): set vm.swappiness = 1 in /etc/sysctl.conf

  • Raise the Java memory allocations for the 3 logging related services which all default to 1GB by editing /etc/default/serviced

    • SERVICED_ISVCS_ENV_0=elasticsearch-logstash:ES_JAVA_OPTS=-Xmx4g

    • SERVICED_ISVCS_ENV_1=elasticsearch-serviced:ES_HEAP_SIZE=2g

    • SERVICED_ISVCS_ENV_2=logstash:LS_HEAP_SIZE=2g

    • Set the Timezone (TZ=) in /etc/default/serviced config on all Control Center delegates (and master) based on the master time zone.