Server status
| Program | Host | Status |
|---|
| BOINC database | jocelyn | Running |
| BOINC replica database | sidious | Running |
| primary science database | thumper | Running |
| secondary science database | bambi | Running |
| data-driven web pages | thinman | Running |
| scheduling server | ptolemy | Running |
| scheduler process | ptolemy | Running |
| download server 1 | bane | Running |
| download server 2 | vader | Running |
| upload server | bruno | Running |
| feeder.i686 | ptolemy | Running |
| file_deleter1 | bruno | Running |
| file_deleter2 | bruno | Running |
| file_deleter3 | bruno | Running |
| file_deleter4 | bruno | Running |
| file_deleter5 | bruno | Running |
| file_deleter6 | bruno | Running |
| db_purge.x86_64 | thumper | Running |
| transitioner1 | vader | Running |
| transitioner2 | vader | Running |
| transitioner3 | bruno | Running |
| transitioner4 | bruno | Running |
| vote_monitor | bruno | Running |
| transitioner5 | vader | Running |
| transitioner6 | vader | Running |
| sah_validate1 | bruno | Running |
| sah_validate2 | bruno | Running |
| sah_validate3 | bruno | Running |
| sah_validate4 | bruno | Running |
| sah_validate5 | bruno | Running |
| sah_validate6 | bruno | Running |
| fix_missing_results | ptolemy | Disabled |
| sah_assimilator1 | bruno | Running |
| sah_assimilator2 | bruno | Running |
| sah_assimilator3 | bruno | Running |
| sah_assimilator4 | bruno | Running |
| mb_splitter5 | lando | Disabled |
| mb_splitter6 | lando | Running |
| mb_splitter7 | lando | Running |
| mb_splitter8 | lando | Running |
| mb_splitter9 | bambi | Running |
| mb_splitter10 | bambi | Running |
| mb_splitter11 | bambi | Running |
| mb_splitter12 | bambi | Running |
| mb_splitter13 | bambi | Running |
| mb_splitter14 | bambi | Running |
| Running: |
Program is operating normally |
| Not Running: |
Program failed or ran out of work
(or the project is down) |
| Disabled: |
Program has been disabled by staff
(for debugging/maintenance) |
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Database/file status
| State | # | As of* |
|---|
| Results ready to send | 769,381 | 40m | | Current result creation rate | 1.50/sec | 0m | | Results out in the field | 3,152,779 | 40m | | Results received in last hour | 41,478 | 0m | | Result turnaround time (last hour average) | 62.03 hours | 0m | | Results returned and awaiting validation | 2,492,155 | 40m | | Workunits waiting for validation | 25 | 40m | | Workunits waiting for assimilation | 25,050 | 40m | | Workunit files waiting for deletion | 12 | 40m | | Result files waiting for deletion | 8 | 40m | | Workunits waiting for db purging | 459,030 | 40m | | Results waiting for db purging | 973,146 | 40m | | Transitioner backlog (hours) | 0 | 0m | * minutes (m) or hours (h) since last checked
Splitter status
| File name | Size | Progress |
|---|
| 02mr08ag | 50.07 GB |   (14) |
| 02mr08ah | 50.07 GB |  (13) |
| 03mr08aa | 50.07 GB | (12) |
| 03mr08ab | 50.07 GB | (13) |
| 03mr08ac | 50.07 GB | (10) |
| 03mr08ad | 50.07 GB | (13) |
| 03mr08ae | 50.07 GB | (11) |
| 03mr08af | 50.07 GB | (14) |
| 03mr08ag | 50.07 GB | (12) |
| 03mr08ah | 50.07 GB | (13) |
| 03mr08ai | 50.07 GB | (8) |
| 03mr08aj | 50.07 GB | (12) |
| 04mr08aa | 50.07 GB | (11) |
| 04mr08ab | 34.89 GB | |
| 12mr08af | 50.20 GB | (7) |
| 17ap08ac | 1.63 GB | |
| 19ap08aa | 50.20 GB | |
| 21ap08aa | 50.20 GB | |
| 22mr08aa | 50.20 GB | |
| 22mr08ab | 50.20 GB | |
| 23mr08ae | 18.45 GB | |
| 26mr08ad | 20.33 GB | (14) |
| 27mr08aa | 17.94 GB | (14) |
| 28mr08ae | 50.20 GB | |
| 28mr08af | 50.20 GB | |
| 28mr08ag | 50.20 GB | |
| 28mr08ah | 50.20 GB | |
| 28mr08ai | 50.20 GB | |
| 28mr08aj | 50.20 GB | |
| 29mr08aa | 50.20 GB | |
| total channels on disk: | 420 |
| channels in progress: | 9 |
| channels done: | 127 |
| channels ended in error: | 55 |
| total channels to do: | 229 |
: channels in progress
: completed channels
: channels with errors
(each file contains data for 14 channels)
Client Connection Statistics
For a periodically updated list of client types/versions that recently
connected to our servers, click here.
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Glossary
Programs:
- BOINC database: The mysql database that contains all BOINC related information
(user stats, forum messages, basic workunit/result information, etc.).
- BOINC replica database: A back-up server which contains an identical
copy of everything in the BOINC database. Read-only queries can be aimed at this
server to lessen the load on the BOINC database.
- primary science database: The informix database that contains final science products
returned by SETI@home clients.
- secondary science database: Like the BOINC replica database, this is a back-up
redundant read-only science database server.
- data-driven web pages: Pages that require database access to be generated.
Pages like the forums, or ones that contain statistics or client version information, etc.
are occasionally turned off (by hand) when the database is down.
- upload/download server: Handles workunit/result transactions initiated by BOINC clients.
When a client requests a workunit, this server sends it out. When a client has
a result to send back, this server reads it and saves it to disk for later validation/assimilation/etc.
- scheduler: Determines what work is going to be sent to/received from requesting clients.
Clients go to the scheduler first to request work, and the scheduler tells the client what to get
and where to get it. If this is off, you cannot get any new work. After a client sends a result
back, it then contacts the scheduler which then marks it as received.
- feeder: Fills up the scheduler work queue with workunits ready to be sent.
The scheduler is usually too busy handling client transactions to maintain such a queue itself.
- transitioner: Handles state transitions of workunits and results.
Basically, the transitioners keep track of the results in progress
and makes sure they properly move down the pipeline. It is always asking the
questions: Is this workunit ready to send out? Has this result been received
yet? Is this a valid result? Can we delete it now?
- sah_validate: Validates SETI@home results by comparing them with similar
results returned by other users. If enough results for the same workunit have
been returned, the validator compares the data, deems one result from the set the
"canonical" result, and issues credit to all responsible users accordingly.
- sah_assimilator: Takes scientific data from validated results and
puts them in the SETI@home master database for later analysis.
- file_deleter: Deletes input/output files when no longer needed (i.e. after assimilation).
This program keeps our upload/download disks as empty as possible.
- sah_splitter: Reads tapes (or tape images on disk) containing raw
telescope data and creates workunits for the BOINC/SETI@home clients.
At least one needs to be running to produce work, and that's usually enough.
Hosts
- bambi: Intel Server (2 x 2.66GHz Xeon, 8 GB RAM)
- bane: Intel Server (2 x quad-core 2.66GHz Xeon, 4 GB RAM)
- bruno: Intel Server (2 x 2.8GHz Xeon, 12 GB RAM)
- jocelyn: Sun V40z (4 x 2.2GHz Opteron, 28 GB RAM)
- lando: Intel Server (4 x 3.20GHz Xeon, 4 GB RAM)
- ptolemy: Intel Server (2 x 3.06GHz Xeon, 12 GB RAM)
- sidious: Intel Server (3 x dual-core 3GHz Xeon, 24 GB RAM)
- thinman: AMD Server (2 x 2.4GHz Opteron, 16 GB RAM)
- thumper: Sun Fire X4500 (2 x dual-core 2.6GHz Opteron, 16 GB RAM)
- vader: Intel Server (4 x dual-core 3GHz Xeon, 16 GB RAM)
Database/file status states
- Results ready to send: For each workunit, "empty" results are generated
that are then sent out to individual users to be filled with data.
This is the number of excess empty results ready to be sent out, i.e. a backlog
in case demand exceeds the current rate of creation.
- Results out in the field: Number of results currently being processed by clients.
- Result turnaround time: The average "wall time," taken over the last hour, between
when a workunit was downloaded and its result was uploaded.
- Results returned and awaiting validation: Number of finished results that have been uploaded
to our servers, but their constituent workunit has yet to reach quorum (usually because the redundant
result is still being process by another client).
- Workunits waiting for validation: The number of workunits that reached
quorum and are waiting to be validated.
- Workunits waiting for assimilation: The number of workunits waiting to
have data from their canonical result input into the master science database.
- Workunit/Result files waiting for deletion: The number of workunit or result files
which can be deleted from disk, as the workunit has been assimilated, and there is no
more use for it or its constituent results.
- Workunits/Results waiting for db purging: The number of workunits or results
which have been deleted from disk and, after a short grace period (currently 24 hours),
will be purged from the database. It is during this grace period that completed results can
still be viewed in your personal account pages. For safety, important information is written
to disk and archived before these rows are deleted.
- Transitioner backlog: Amount of time that the transitioner is behind (i.e.
the age of the oldest result in the database waiting to be transitioned to another
state).
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