Tahoe-LAFS Local Plugins ¶
- Overview
- Current Plugins
- Obsolete Plugins
- Testing
Overview ¶
This is the README for munin local plugins for Tahoe-LAFS (see ticket #966).
These plugins are used with Tahoe-LAFS grids that do not use a stats-gatherer.
Some plugins use json url and others need local access to the storage directory (needs a new column in the table below).
For configuration information, please see each individual plugin.
Current Plugins ¶
tahoe_files Shows the number of files hosted by this node's storage server tahoe_diskfelt Shows how much free space is left on all disks across the grid tahoe_diskusage Shows the estimated disk usage per unit time, totaled across all storage servers tahoe_diskused Shows the total amount of disk space used across the grid tahoe_disktotal Shows the total amount of disk space present in the grid, and how much of it is currently being used tahoe_doomsday Shows the estimated number of days left until storage space is exhausted tahoe_introstats Shows the number of hosts announcing and subscribing to various services tahoe_nodememory Shows the memory used by specific processes tahoe_helperstats_active Shows the number of files being actively processed by the helper tahoe_helperstats_fetched Shows the amount of data being fetched by the helper tahoe_server_latency_ Shows the latency statistic for a given operation and percentile from a set of storage servers tahoe_server_operations_ Shows operations-per-second from a set of storage servers tahoe_storagespace Shows the space consumed by server nodes tahoe_estimate_files Shows the estimated number of files and directories present in the grid
Obsolete Plugins ¶
These munin plugins are obsolete because they were designed for the customer database at allmydata.com.
These plugins require a source of 'tahoe deep-size' results for all rootcaps that reference data in your grid. If you are managing a grid where you have this information, these scripts may still prove useful.
tahoe_overhead Shows the estimated amount of storage overhead (ratio of actual disk usage to ideal disk usage) tahoe_spacetime Shows the estimated number of days left until storage space is exhausted tahoe_rootdir_space Shows the amount of space consumed by all files reachable from a given directory
Testing ¶
To test a plugin you can run: munin-run <plugin_file>
For example:
# munin-run tahoe_diskleft disk_left.value 670599436800
To display graph configuration add 'config' at the end of command line:
# munin-run tahoe_diskleft config graph_title Tahoe-LAFS Remaining Disk Space graph_vlabel bytes remaining graph_category Tahoe-LAFS graph_info This graph shows the total amount of disk space left available in the grid disk_left.label disk left disk_left.draw LINE1
