NAME¶
kumostat - get kumofs status
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
SEE ALSO¶
kumo-server(1).
