= The Public Test Grid =

== How To Connect To The Public Test Grid ==

The test grid is subject to being updated at random times, so compatibility
is likely to break without notice. Also note that many upgrades require all
files and directories to be flushed, especially as storage formats change.

The test grid is currently running an 1.0.0-compatible release (currently
1.0.0-r2366).

After installing the code according to [http://allmydata.org/source/tahoe/trunk/docs/install.html docs/install.html], copy the
following file into its base directory:

||file name||file contents||
||introducer.furl||{{{pb://todjw7qkb4dgq4fkeo7cqydcu5vneioh@tahoecs2.allmydata.com:52106/introducer}}}||

Then run ''tahoe start''.

We created a shared public directory: feel free to use it for
experimentation -- once your node is up and running on port 8123, [http://127.0.0.1:8123/uri/URI%3ADIR2%3Adjrdkfawoqihigoett4g6auz6a%3Ajx5mplfpwexnoqff7y5e4zjus4lidm76dcuarpct7cckorh2dpgq/ this URL] should give you access to that directory.

If you aren't running a node locally, you can replace "127.0.0.1" with another host, such as "tahoebs1.allmydata.com" in that URL, like this: [http://tahoebs1.allmydata.com:8123/uri/URI%3ADIR2%3Adjrdkfawoqihigoett4g6auz6a%3Ajx5mplfpwexnoqff7y5e4zjus4lidm76dcuarpct7cckorh2dpgq/ URL to the publically writeable directory through tahoebs1.allmydata.com]. 

== Test Grid Statistics ==

Usage statistics are available for the public test grid. NOTE: these are
probably out of date and inaccurate. #13 and other tickets are where we're
keeping track of better grid-wide instrumentation tools that we want to
build.

'''These measurements have been broken by changes to the Tahoe source code.'''

=== Count of how many clients and servers are connected to the grid ===
 * [/tahoe-munin/tahoecs2.allmydata.com-tahoe_introstats.html other time scales]
[[Image(http://allmydata.org/tahoe-munin/tahoecs2.allmydata.com-tahoe_introstats-month.png)]]

=== Load Average ===

This measures how long a 1 second callback is overdue, on each machine that
connects to the central 'stats gatherer'.
 * [/tahoe-munin/tahoecs2.allmydata.com-tahoe_runtime_load_avg.html other time scales]
[[Image(http://allmydata.org/tahoe-munin/tahoecs2.allmydata.com-tahoe_runtime_load_avg-month.png)]]

Same, but those the peak value (reset at node reboot)
 * [/tahoe-munin/tahoecs2.allmydata.com-tahoe_runtime_load_peak.html other time scales]
[[Image(http://allmydata.org/tahoe-munin/tahoecs2.allmydata.com-tahoe_runtime_load_peak-month.png)]]

=== Total space consumed in grid ===

This queries each storage server for how much space it is currently
consuming.
 * [/tahoe-munin/tahoecs2.allmydata.com-tahoe_storage_consumed.html other time scales]
[[Image(http://allmydata.org/tahoe-munin/tahoecs2.allmydata.com-tahoe_storage_consumed-month.png)]]


The following counts are samples of a single storage server, running four
nodes. The test grid uses four servers, running a total of 13 nodes.

=== count of files stored in the grid ===
 * other time scales:
   [/tahoe-munin/tahoebs1.allmydata.com-tahoe_files.html tahoebs1],
   [/tahoe-munin/tahoebs3.allmydata.com-tahoe_files.html tahoebs3],
   [/tahoe-munin/tahoebs4.allmydata.com-tahoe_files.html tahoebs4],
   [/tahoe-munin/tahoebs5.allmydata.com-tahoe_files.html tahoebs5]
[[Image(http://allmydata.org/tahoe-munin/tahoebs3.allmydata.com-tahoe_files-month.png)]]

=== average shares per file ===
this hints at the number of nodes in the overall grid; If the number of hosts in the grid is less than 10, then shares_per_file should equal about 10/numhosts
 * other time scales:
  [/tahoe-munin/tahoebs1.allmydata.com-tahoe_sharesperfile.html tahoebs1],
  [/tahoe-munin/tahoebs3.allmydata.com-tahoe_sharesperfile.html tahoebs3],
  [/tahoe-munin/tahoebs4.allmydata.com-tahoe_sharesperfile.html tahoebs4],
  [/tahoe-munin/tahoebs5.allmydata.com-tahoe_sharesperfile.html tahoebs5]
[[Image(http://allmydata.org/tahoe-munin/tahoebs3.allmydata.com-tahoe_sharesperfile-month.png)]]

=== total bytes consumed by all of the Tahoe test grid storage servers operated by Allmydata Inc. ===
 * other time scales:
  [/tahoe-munin/tahoebs1.allmydata.com-tahoe_storagespace.html tahoebs1],
  [/tahoe-munin/tahoebs3.allmydata.com-tahoe_storagespace.html tahoebs3],
  [/tahoe-munin/tahoebs4.allmydata.com-tahoe_storagespace.html tahoebs4],
  [/tahoe-munin/tahoebs5.allmydata.com-tahoe_storagespace.html tahoebs5]
[[Image(http://allmydata.org/tahoe-munin/tahoebs3.allmydata.com-tahoe_storagespace-month.png)]]