SYNOPSIS

kumostat server-address[:port=19800] command

kumostat -m manager-address[:port=19700] command

DESCRIPTION

Get status from Server node.

COMMANDS

pid

get pid of server process

uptime

get uptime

time

get UNIX time

version

get version

cmd_get

get total number of processed get requests

cmd_set

get total number of processed set requests

cmd_delete

get total number of processed delete requests

items

get number of stored items

rhs

get rhs (routing table for Get)

whs

get whs (routing table for Set/Delete)

hscheck

check if rhs == whs

set_delay

maximize throughput at the expense of latency

unset_delay

maximize throughput at the expense of latency

DELAY MODE

If the delay mode is enabled, req/sec throughput is maximized at the expense of latency. This mode actually disables TCP_NODELAY option of all sockets. The practice of this feature is as following:

- run some scripts that watches load of the kumo-server. (see source code of kumotop)

- if the load of kumo-server becomes high, enable delay mode by kumostat set_delay command.

- if the load of kumo-server becomes low, disable delay mode by kumostat unset_delay command.

EXAMPLE

$ kumostat svr1 items

$ kumotop -m mgr1 hscheck