swift-dispersion-report
(1)
名前
swift-dispersion-report - OpenStack Swift dispersion report
形式
swift-dispersion-report [-d|--debug] [-j|--dump-json]
[-p|--partitions] [--container-only|--object-only] [--inse-
cure]
説明
OpenStack Swift swift-dispersion-report(1)
NAME
swift-dispersion-report - OpenStack Swift dispersion report
SYNOPSIS
swift-dispersion-report [-d|--debug] [-j|--dump-json]
[-p|--partitions] [--container-only|--object-only] [--inse-
cure]
DESCRIPTION
This is one of the swift-dispersion utilities that is used
to evaluate the overall cluster health. This is accomplished
by checking if a set of deliberately distributed containers
and objects are currently in their proper places within the
cluster.
For instance, a common deployment has three replicas of each
object. The health of that object can be measured by check-
ing if each replica is in its proper place. If only 2 of the
3 is in place the object's health can be said to be at
66.66%, where 100% would be perfect.
Once the swift-dispersion-populate has been used to populate
the dispersion account, one should run the swift-dispersion-
report tool repeatedly for the life of the cluster, in order
to check the health of each of these containers and objects.
These tools need direct access to the entire cluster and to
the ring files. Installing them on a proxy server will
probably do or a box used for swift administration purposes
that also contains the common swift packages and ring. Both
swift-dispersion-populate and swift-dispersion-report use
the same configuration file, /etc/swift/dispersion.conf .
The account used by these tool should be a dedicated account
for the dispersion stats and also have admin privileges.
OPTIONS
-d, --debug
output any 404 responses to standard error
OPTIONS
-j, --dump-json
output dispersion report in json format
OpenStack Last change: 8/26/2011 1
OpenStack Swift swift-dispersion-report(1)
OPTIONS
-p, --partitions
output the partition numbers that have any missing
replicas
OPTIONS
--container-only
Only run the container report
OPTIONS
--object-only
Only run the object report
OPTIONS
--insecure
Allow accessing insecure keystone server. The key-
stone's certificate will not be verified.
CONFIGURATION
Example /etc/swift/dispersion.conf:
[dispersion]
auth_url = https://127.0.0.1:443/auth/v1.0
auth_user = dpstats:dpstats
auth_key = dpstats
swift_dir = /etc/swift
# dispersion_coverage = 1.0
# retries = 5
# concurrency = 25
# dump_json = no
# endpoint_type = publicURL
EXAMPLE
$ swift-dispersion-report
Queried 2622 containers for dispersion reporting, 31s, 0
retries
100.00% of container copies found (7866 of 7866)
Sample represents 1.00% of the container partition space
Queried 2621 objects for dispersion reporting, 22s, 0
retries
100.00% of object copies found (7863 of 7863)
Sample represents 1.00% of the object partition space
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OpenStack Swift swift-dispersion-report(1)
DOCUMENTATION
More in depth documentation about the swift-dispersion util-
ities and also OpenStack Swift as a whole can be found at
http://swift.openstack.org/admin_guide.html#cluster-health
and http://swift.openstack.org
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
+---------------+-----------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------------+
|Availability | cloud/openstack/swift |
+---------------+-----------------------+
|Stability | Uncommitted |
+---------------+-----------------------+
SEE ALSO
swift-dispersion-populate(1), dispersion.conf(4)
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from http://launch-
pad.net/swift/havana/1.10.0/+download/swift-1.10.0.tar.gz
Further information about this software can be found on the
open source community website at http://www.openstack.org/.
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