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+(Draft)<br>
+It's the README file for munin local plugins<br>
+Please see ticket #966
+
+================================
+
+
+# Tahoe-LAFS local plugins
+
+1.  Overview
+2.  Plugins details
+3.  Obselete plugins
+4.  Plugins testing
+
+
+## Overview
+
+> Those plugins are used with Tahoe-LAFS that not use a stats-gateherer.
+> Some plugins use json url and some other need local access to storage directory.
+  
+> For plugins configuration please read each plugins and tahoe-conf
+
+
+## Plugins details
+
+> tahoe_files:                  Shows the number of files hosted by this node's [StorageServer](StorageServer).
+> tahoe_diskfelt:               Shows of how much free space is left on all disks across the grid.
+> tahoe_diskusage:              Shows the estimated disk usage per unit time, totalled 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 severs nodes
+> tahoe_estimate_files:         Shows the estimated number of files and directories present in the grid
+
+
+## Obsolete plugins
+
+> Those munin plugins are deeply obsolete, because they depended upon the DB that managed customer accounts at allmydata.com.
+> to use this script, you will need some source of 'tahoe deep-size' results for all rootcaps that reference data in your grid.
+> This tool was written for the allmydata.com environment, which maintained such a value.
+
+> 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
+
+
+## Plugins testing
+  
+> To test plugin you can run: munin-run 'plugin file'
+> For example:
+    # munin-run tahoe_stats_storage_disk_used
+    RM1X_gfsd.value 28093239296
+    [..]
+  
+> To display graph configuration add 'config' at the end of command line:
+    #munin-run tahoe_stats_storage_disk_used config
+    graph_title Tahoe-LAFS Storage Server Disk Used
+    graph_vlabel bytes
+    graph_category Tahoe-LAFS Stats-Gatherer_storage_server
+    graph_info This graph shows disk usage for Tahoe
+    graph_args --base 1024
+    RM1X_gfsd.label RM1X_gfsd
+    RM1X_gfsd.draw LINE1
+    [..]
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