swift-recon (1)

swift-recon  <server_type> [-v] [--suppress] [-a] [-r] [-u] [-d] [-l] [--md5] [--auditor] [--updater] [--expirer] [--sockstat]

The swift-recon cli tool can be used to retrieve various metrics and telemetry information about a cluster that has been collected by the swift-recon middleware.

In order to make use of the swift-recon middleware, update the object-server.conf file and enable the recon middleware by adding a pipeline entry and setting its option(s). You can view more information in the example section below.

<server_type>

account|container|object - Defaults to object server.

-h, --help

show this help message and exit

-v, --verbose

Print verbose information

--suppress

Suppress most connection related errors

-a, --async

Get async stats

--auditor

Get auditor stats

--updater

Get updater stats

--expirer

Get expirer stats

-r, --replication

Get replication stats

-u, --unmounted

Check cluster for unmounted devices

-d, --diskusage

Get disk usage stats

-l, --loadstats

Get cluster load average stats

-q, --quarantined

Get cluster quarantine stats

--md5

Get md5sum of servers ring and compare to local cop

--all

Perform all checks. Equivalent to -arudlq --md5

-z ZONE, --zone=ZONE

Only query servers in specified zone

--swiftdir=PATH

Default = /etc/swift

ubuntu:~$ swift-recon -q --zone 3

=================================================================

[2011-10-18 19:36:00] Checking quarantine dirs on 1 hosts...

[Quarantined objects] low: 4, high: 4, avg: 4, total: 4

[Quarantined accounts] low: 0, high: 0, avg: 0, total: 0

[Quarantined containers] low: 0, high: 0, avg: 0, total: 0

=================================================================

Finally if you also wish to track asynchronous pending’s you will need to setup a cronjob to run the swift-recon-cron script periodically:

*/5 * * * * swift /usr/bin/swift-recon-cron /etc/swift/object-server.conf

More documentation about Openstack-Swift can be found at http://swift.openstack.org/index.html Also more specific documentation about swift-recon can be found at http://swift.openstack.org/admin_guide.html#cluster-telemetry-and-monitoring

object-server.conf(5),