MOGSTATS(1) User Contributed Perl Documentation MOGSTATS(1)NAMEmogstats-- Utility for calculating slow stats directly against a
MogileFS DB
SYNOPSIS
$ mogstats --db_dsn="DBI:mysql:mfs:host=mfshost" --db_user="mfs" \
--db_pass="mfs" --verbose --stats="devices,files"
$ mogstats --stats="all"
$ mogstats [all options in ~/.mogilefs.conf]
DESCRIPTION
Utility for inspecting queues and running general statistics against a
MogileFS database. Some of these stats can take a very long time to run
against a large instance, so the utility can be pointed at a read slave
or special account.
OPTIONS
--db_dsn=<DBI_dsn>
The DSN to use for connecting to the MogileFS database server.
--db_user=<username>
A database user for connecting to the database.
--db_pass=<password>
An optional password for the database user.
--config=<file>
An explicit config file to use. By default
/etc/mogilefs/mogilefs.conf and ~/.mogilefs.conf are checked.
--verbose
Print some extra text during processing. Mostly notes about what
stats are starting or finishing.
--stats=<stats>
A list of which statistics to calculate. Notes on some of them are
listed below, see --help for full list. A value of "all" fetches
all possible stats.
--help
List usage info and supported statistics.
AVAILABLE STATISTICS
Contains notes on which stats may be fast or slow.
devices
Lists count of files and current database status per-device. Can be
very slow.
fids
Lists the current highest file id. Should be fast.
files
Gives a breakdown of where files are by domain and class. Displays
the size of all stored files pre-replication, as well as post-
replication size. The latter being closer to the actual storage
amount. Can be very slow.
domains
Shows a simple count of where files are by domain and class. Faster
than using "files" but displays less information.
replication
Displays a breakdown of devcount per domain/class combo. Shows
number of files in domain "foo" with class "bar" that have a
current devcount of 0, 1, 2, 3, etc. Useful for spotting broken
files (devcount 0), replication lag, or over replication bugs. Can
be very slow.
replication-queue
Quick breakdown of how many fids are due for replication. Fids
listed as "manual" need manual intervention before they can be
replicated, and could be broken. Will be fast unless there are many
files in queue.
delete-queue
Similar to replication-queue.
general-queue
Displays a breakdown of what's in the general queue. This includes
FSCK, Rebalance, and other temporary queueing systems MogileFS has.
Should be fast unless you have configured MogileFS to queue many
fids at once.
AUTHOR
Dormando <dormando@rydia.net>
BUGS
None known.
LICENSE
Licensed for use and redistribution under the same terms as Perl
itself.
perl v5.14.1 2011-01-05 MOGSTATS(1)
