README.RPC 46 KB

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402
  1. This README contains details about the BFGMiner RPC API
  2. It also includes some detailed information at the end,
  3. about using miner.php
  4. If you start BFGMiner with the "--api-listen" option, it will listen on a
  5. simple TCP/IP socket for single string API requests from the same machine
  6. running BFGMiner and reply with a string and then close the socket each time
  7. If you add the "--api-network" option, it will accept API requests from any
  8. network attached computer.
  9. You can only access the commands that reply with data in this mode.
  10. By default, you cannot access any privileged command that affects the miner -
  11. you will receive an access denied status message see --api-allow below.
  12. You can specify IP addresses/prefixes that are only allowed to access the API
  13. with the "--api-allow" option e.g. --api-allow W:192.168.0.1,10.0.0/24
  14. will allow 192.168.0.1 or any address matching 10.0.0.*, but nothing else
  15. IP addresses are automatically padded with extra '.0's as needed
  16. Without a /prefix is the same as specifying /32
  17. 0/0 means all IP addresses.
  18. The 'W:' on the front gives that address/subnet privileged access to commands
  19. that modify BFGMiner (thus all API commands)
  20. Without it those commands return an access denied status.
  21. See --api-groups below to define other groups like W:
  22. Privileged access is checked in the order the IP addresses were supplied to
  23. "--api-allow"
  24. The first match determines the privilege level.
  25. Using the "--api-allow" option overrides the "--api-network" option if they
  26. are both specified
  27. With "--api-allow", 127.0.0.1 is not by default given access unless specified
  28. More groups (like the privileged group W:) can be defined using the
  29. --api-groups command
  30. Valid groups are only the letters A-Z (except R & W are predefined) and are
  31. not case sensitive
  32. The R: group is the same as not privileged access
  33. The W: group is (as stated) privileged access (thus all API commands)
  34. To give an IP address/subnet access to a group you use the group letter
  35. in front of the IP address instead of W: e.g. P:192.168.0/32
  36. An IP address/subnet can only be a member of one group
  37. A sample API group would be:
  38. --api-groups P:switchpool:enablepool:addpool:disablepool:removepool:poolpriority:*
  39. This would create a group 'P' that can do all current pool commands and all
  40. non-privileged commands - the '*' means all non-privileged commands
  41. Without the '*' the group would only have access to the pool commands
  42. Defining multiple groups example:
  43. --api-groups Q:quit:restart:*,S:save
  44. This would define 2 groups:
  45. Q: that can 'quit' and 'restart' as well as all non-privileged commands
  46. S: that can only 'save' and no other commands
  47. The RPC API request can be either simple text or JSON.
  48. If the request is JSON (starts with '{'), it will reply with a JSON formatted
  49. response, otherwise it replies with text formatted as described further below.
  50. The JSON request format required is '{"command":"CMD","parameter":"PARAM"}'
  51. (though of course parameter is not required for all requests)
  52. where "CMD" is from the "Request" column below and "PARAM" would be e.g.
  53. the CPU/GPU number if required.
  54. An example request in both formats to set GPU 0 fan to 80%:
  55. gpufan|0,80
  56. {"command":"gpufan","parameter":"0,80"}
  57. The format of each reply (unless stated otherwise) is a STATUS section
  58. followed by an optional detail section
  59. From API version 1.7 onwards, reply strings in JSON and Text have the
  60. necessary escaping as required to avoid ambiguity - they didn't before 1.7
  61. For JSON the 2 characters '"' and '\' are escaped with a '\' before them
  62. For Text the 4 characters '|' ',' '=' and '\' are escaped the same way
  63. Only user entered information will contain characters that require being
  64. escaped, such as Pool URL, User and Password or the Config save filename,
  65. when they are returned in messages or as their values by the API
  66. For API version 1.4 and later:
  67. The STATUS section is:
  68. STATUS=X,When=NNN,Code=N,Msg=string,Description=string|
  69. STATUS=X Where X is one of:
  70. W - Warning
  71. I - Informational
  72. S - Success
  73. E - Error
  74. F - Fatal (code bug)
  75. When=NNN
  76. Standard long time of request in seconds
  77. Code=N
  78. Each unique reply has a unique Code (See api.c - #define MSG_NNNNNN)
  79. Msg=string
  80. Message matching the Code value N
  81. Description=string
  82. This defaults to the BFGMiner version but is the value of --api-description
  83. if it was specified at runtime.
  84. For API version 1.10 and later:
  85. The list of requests - a (*) means it requires privileged access - and replies are:
  86. Request Reply Section Details
  87. ------- ------------- -------
  88. version VERSION CGMiner=BFGMiner version
  89. API=API version
  90. config CONFIG Some miner configuration information:
  91. GPU Count=N, <- the number of GPUs
  92. PGA Count=N, <- the number of PGAs
  93. CPU Count=N, <- the number of CPUs
  94. Pool Count=N, <- the number of Pools
  95. ADL=X, <- Y or N if ADL is compiled in the code
  96. ADL in use=X, <- Y or N if any GPU has ADL
  97. Strategy=Name, <- the current pool strategy
  98. Log Interval=N, <- log interval (--log N)
  99. Device Code=GPU ICA , <- spaced list of compiled devices
  100. OS=Linux/Apple/..., <- operating System
  101. Failover-Only=true/false, <- failover-only setting
  102. ScanTime=N, <- --scan-time setting
  103. Queue=N, <- --queue setting
  104. Expiry=N| <- --expiry setting
  105. summary SUMMARY The status summary of the miner
  106. e.g. Elapsed=NNN,Found Blocks=N,Getworks=N,...|
  107. pools POOLS The status of each pool
  108. e.g. Pool=0,URL=http://pool.com:6311,Status=Alive,...|
  109. devs DEVS Each available GPU, PGA and CPU with their status
  110. e.g. GPU=0,Accepted=NN,MHS av=NNN,...,Intensity=D|
  111. Last Share Time=NNN, <- standard long time in seconds
  112. (or 0 if none) of last accepted share
  113. Last Share Pool=N, <- pool number (or -1 if none)
  114. Will not report PGAs if PGA mining is disabled
  115. Will not report CPUs if CPU mining is disabled
  116. devdetail DEVS Each available device with their fixed details
  117. e.g. GPU=0,Driver=opencl,Kernel=diablo,Model=...|
  118. gpu|N GPU The details of a single GPU number N in the same
  119. format and details as for DEVS
  120. pga|N PGA The details of a single PGA number N in the same
  121. format and details as for DEVS
  122. This is only available if PGA mining is enabled
  123. Use 'pgacount' or 'config' first to see if there are any
  124. cpu|N CPU The details of a single CPU number N in the same
  125. format and details as for DEVS
  126. This is only available if CPU mining is enabled
  127. Use 'cpucount' or 'config' first to see if there are any
  128. gpucount GPUS Count=N| <- the number of GPUs
  129. pgacount PGAS Count=N| <- the number of PGAs
  130. Always returns 0 if PGA mining is disabled
  131. cpucount CPUS Count=N| <- the number of CPUs
  132. Always returns 0 if CPU mining is disabled
  133. switchpool|N (*)
  134. none There is no reply section just the STATUS section
  135. stating the results of switching pool N to the
  136. highest priority (the pool is also enabled)
  137. The Msg includes the pool URL
  138. enablepool|N (*)
  139. none There is no reply section just the STATUS section
  140. stating the results of enabling pool N
  141. The Msg includes the pool URL
  142. addpool|URL,USR,PASS (*)
  143. none There is no reply section just the STATUS section
  144. stating the results of attempting to add pool N
  145. The Msg includes the pool URL
  146. Use '\\' to get a '\' and '\,' to include a comma
  147. inside URL, USR or PASS
  148. poolpriority|N,... (*)
  149. none There is no reply section just the STATUS section
  150. stating the results of changing pool priorities
  151. See usage below
  152. disablepool|N (*)
  153. none There is no reply section just the STATUS section
  154. stating the results of disabling pool N
  155. The Msg includes the pool URL
  156. removepool|N (*)
  157. none There is no reply section just the STATUS section
  158. stating the results of removing pool N
  159. The Msg includes the pool URL
  160. N.B. all details for the pool will be lost
  161. gpuenable|N (*)
  162. none There is no reply section just the STATUS section
  163. stating the results of the enable request
  164. gpudisable|N (*)
  165. none There is no reply section just the STATUS section
  166. stating the results of the disable request
  167. gpurestart|N (*)
  168. none There is no reply section just the STATUS section
  169. stating the results of the restart request
  170. gpuintensity|N,I (*)
  171. none There is no reply section just the STATUS section
  172. stating the results of setting GPU N intensity to I
  173. gpumem|N,V (*)
  174. none There is no reply section just the STATUS section
  175. stating the results of setting GPU N memoryclock to V MHz
  176. gpuengine|N,V (*)
  177. none There is no reply section just the STATUS section
  178. stating the results of setting GPU N clock to V MHz
  179. gpufan|N,V (*)
  180. none There is no reply section just the STATUS section
  181. stating the results of setting GPU N fan speed to V%
  182. gpuvddc|N,V (*)
  183. none There is no reply section just the STATUS section
  184. stating the results of setting GPU N vddc to V
  185. save|filename (*)
  186. none There is no reply section just the STATUS section
  187. stating success or failure saving the BFGMiner config
  188. to filename
  189. The filename is optional and will use the BFGMiner
  190. default if not specified
  191. quit (*) none There is no status section but just a single "BYE"
  192. reply before BFGMiner quits
  193. notify NOTIFY The last status and history count of each devices problem
  194. e.g. NOTIFY=0,Name=PGA,ID=0,ProcID=0,Last Well=1332432290,...|
  195. privileged (*)
  196. none There is no reply section just the STATUS section
  197. stating an error if you do not have privileged access
  198. to the API and success if you do have privilege
  199. The command doesn't change anything in BFGMiner
  200. pgaenable|N (*)
  201. none There is no reply section just the STATUS section
  202. stating the results of the enable request
  203. You cannot enable a PGA if its status is not WELL
  204. This is only available if PGA mining is enabled
  205. pgadisable|N (*)
  206. none There is no reply section just the STATUS section
  207. stating the results of the disable request
  208. This is only available if PGA mining is enabled
  209. pgaidentify|N (*)
  210. none There is no reply section just the STATUS section
  211. stating the results of the identify request
  212. This is only available if PGA mining is enabled
  213. and currently only BitForce Singles support this command
  214. On a BitForce Single it will flash the led on the front
  215. of the device for approximately 4s
  216. All other non-BFL PGA devices will return a warning
  217. status message stating that they don't support it
  218. This adds a 4s delay to the BFL share being processed
  219. so you may get a message stating that processing took
  220. longer than 7000ms if the request was sent towards
  221. the end of the timing of any work being worked on
  222. e.g.: BFL0: took 8438ms - longer than 7000ms
  223. You should ignore this
  224. devdetails DEVDETAILS Each device with a list of their static details
  225. This lists all devices including those not supported
  226. by the 'devs' command
  227. e.g. DEVDETAILS=0,Name=PGA,ID=0,ProcID=0,Driver=bitforce,...|
  228. restart (*) none There is no status section but just a single "RESTART"
  229. reply before BFGMiner restarts
  230. stats STATS Each device or pool that has 1 or more getworks
  231. with a list of stats regarding getwork times
  232. The values returned by stats may change in future
  233. versions thus would not normally be displayed
  234. Device drivers are also able to add stats to the
  235. end of the details returned
  236. check|cmd COMMAND Exists=Y/N, <- 'cmd' exists in this version
  237. Access=Y/N| <- you have access to use 'cmd'
  238. failover-only|true/false (*)
  239. none There is no reply section just the STATUS section
  240. stating what failover-only was set to
  241. coin COIN Coin mining information:
  242. Hash Method=sha256/scrypt,
  243. Current Block Time=N.N, <- 0 means none
  244. Current Block Hash=XXXX..., <- blank if none
  245. LP=true/false| <- LP is in use on at least 1 pool
  246. debug|setting (*)
  247. DEBUG Debug settings
  248. The optional commands for 'setting' are the same as
  249. the screen curses debug settings
  250. You can only specify one setting
  251. Only the first character is checked (case insensitive):
  252. Silent, Quiet, Verbose, Debug, RPCProto, PerDevice,
  253. WorkTime, Normal
  254. The output fields are (as above):
  255. Silent=true/false,
  256. Quiet=true/false,
  257. Verbose=true/false,
  258. Debug=true/false,
  259. RPCProto=true/false,
  260. PerDevice=true/false,
  261. WorkTime=true/false|
  262. setconfig|name,value (*)
  263. none There is no reply section just the STATUS section
  264. stating the results of setting 'name'
  265. The valid values for name are currently:
  266. queue, scantime, expiry (integer in the range
  267. 0 to 9999)
  268. coinbase-sig (string)
  269. pgaset|N,opt[,val] (*)
  270. none There is no reply section just the STATUS section
  271. stating the results of setting PGA N with opt[,val]
  272. This is only available if PGA mining is enabled
  273. If the PGA does not support any set options, it will
  274. always return a WARN stating pgaset isn't supported
  275. If opt=help it will return an INFO status with a
  276. help message about the options available
  277. The current options are:
  278. MMQ opt=clock val=2 to 230 (and a multiple of 2)
  279. zero|Which,true/false (*)
  280. none There is no reply section just the STATUS section
  281. stating that the zero, and optional summary, was done
  282. If Which='all', all normal cgminer and API statistics
  283. will be zeroed other than the numbers displayed by the
  284. usbstats and stats commands
  285. If Which='bestshare', only the 'Best Share' values
  286. are zeroed for each pool and the global 'Best Share'
  287. The true/false option determines if a full summary is
  288. shown on the cgminer display like is normally displayed
  289. on exit.
  290. When you enable, disable or restart a GPU or PGA, you will also get Thread
  291. messages in the BFGMiner status window.
  292. The 'poolpriority' command can be used to reset the priority order of multiple
  293. pools with a single command - 'switchpool' only sets a single pool to first
  294. priority. Each pool should be listed by id number in order of preference (first
  295. = most preferred). Any pools not listed will be prioritised after the ones that
  296. are listed, in the priority order they were originally If the priority change
  297. affects the miner's preference for mining, it may switch immediately.
  298. When you switch to a different pool to the current one (including by priority
  299. change), you will get a 'Switching to URL' message in the BFGMiner status
  300. windows
  301. Obviously, the JSON format is simply just the names as given before the '='
  302. with the values after the '='
  303. If you enable BFGMiner debug (--debug or using RPC), you will also get messages
  304. showing some details of the requests received and the replies
  305. There are included 4 program examples for accessing the API:
  306. api-example.php - a PHP script to access the API
  307. usage: php api-example.php command
  308. by default it sends a 'summary' request to the miner at 127.0.0.1:4028
  309. If you specify a command it will send that request instead
  310. You must modify the line "$socket = getsock('127.0.0.1', 4028);" at the
  311. beginning of "function request($cmd)" to change where it looks for BFGMiner
  312. API.java/API.class
  313. a java program to access the API (with source code)
  314. usage is: java API command address port
  315. Any missing or blank parameters are replaced as if you entered:
  316. java API summary 127.0.0.1 4028
  317. api-example.c - a 'C' program to access the API (with source code)
  318. usage: api-example [command [ip/host [port]]]
  319. again, as above, missing or blank parameters are replaced as if you entered:
  320. api-example summary 127.0.0.1 4028
  321. miner.php - an example web page to access the API
  322. This includes buttons and inputs to attempt access to the privileged commands
  323. See the end of this README.RPC for details of how to tune the display
  324. and also to use the option to display a multi-rig summary
  325. ----------
  326. Feature Changelog for external applications using the API:
  327. API V1.24b
  328. Modified API commands:
  329. 'cpustatus' - add 'ProcID'
  330. 'gpustatus' - add 'ProcID'
  331. 'pgastatus' - add 'ProcID'
  332. 'devstatus' - add 'ProcID'
  333. 'notify' - add 'ProcID'
  334. 'devdetails' - add 'ProcID'
  335. 'devdetail' - add 'Name', 'ID', and 'ProcID'
  336. 'pools' - add 'Message'
  337. Pretty much updated every method returning 'Name' and 'ID' to also return
  338. 'ProcID'. This is a number starting with 0 for 'a', 1 for 'b', etc.
  339. ----------
  340. API V1.24 (BFGMiner v2.10.3)
  341. Added API commands:
  342. 'zero'
  343. Modified API commands:
  344. 'pools' - add 'Best Share'
  345. 'stats' - rename 'Bytes Sent' and 'Bytes Recv' to 'Net Bytes Sent' and
  346. 'Net Bytes Recv'
  347. ----------
  348. API V1.23 (BFGMiner v2.10.1)
  349. Added API commands:
  350. 'pgaset' - with: MMQ opt=clock val=2 to 230 (and a multiple of 2)
  351. ----------
  352. API V1.22 (not released)
  353. Enforced output limitation:
  354. all extra records beyond the output limit of the API (~64k) are ignored and
  355. chopped off at the record boundary before the limit is reached however, JSON
  356. brackets will be correctly closed and the JSON id will be set to 0 (instead
  357. of 1) if any data was truncated
  358. Modified API commands:
  359. 'stats' - add 'Times Sent', 'Bytes Sent', 'Times Recv', 'Bytes Recv'
  360. ----------
  361. API V1.21 (BFGMiner v2.10.0)
  362. Modified API commands:
  363. 'summary' - add 'Best Share'
  364. ----------
  365. API V1.20b (BFGMiner v2.9.1)
  366. Support for the X6500 FPGA was added
  367. ----------
  368. API V1.20 (BFGMiner v2.9.0)
  369. Modified API commands:
  370. 'pools' - add 'Has Stratum', 'Stratum Active', 'Stratum URL'
  371. ----------
  372. API V1.19b (BFGMiner v2.8.1)
  373. Added API commands:
  374. 'pgaidentify|N' (only works for BitForce Singles so far)
  375. Modified API commands:
  376. Change pool field name back from 'Diff1 Work' to 'Diff1 Shares'
  377. 'devs' - add 'Difficulty Accepted', 'Difficulty Rejected',
  378. 'Last Share Difficulty' to all devices
  379. 'gpu|N' - add 'Difficulty Accepted', 'Difficulty Rejected',
  380. 'Last Share Difficulty'
  381. 'pga|N' - add 'Difficulty Accepted', 'Difficulty Rejected',
  382. 'Last Share Difficulty'
  383. 'notify' - add '*Dev Throttle' (for BitForce Singles)
  384. 'pools' - add 'Difficulty Accepted', 'Difficulty Rejected',
  385. 'Difficulty Stale', 'Last Share Difficulty'
  386. 'stats' - add 'Work Diff', 'Min Diff', 'Max Diff', 'Min Diff Count',
  387. 'Max Diff Count' to the pool stats
  388. 'setconfig|name,value' - add 'Coinbase-Sig' string
  389. ----------
  390. API V1.19 (BFGMiner v2.8.0)
  391. Added API commands:
  392. 'debug'
  393. 'setconfig|name,N'
  394. Modified API commands:
  395. Change pool field name 'Diff1 Shares' to 'Diff1 Work'
  396. 'devs' - add 'Diff1 Work' to all devices
  397. 'gpu|N' - add 'Diff1 Work'
  398. 'pga|N' - add 'Diff1 Work'
  399. 'pools' - add 'Proxy'
  400. 'config' - add 'Queue', 'Expiry'
  401. ----------
  402. API V1.18 (BFGMiner v2.7.4)
  403. Modified API commands:
  404. 'stats' - add 'Work Had Roll Time', 'Work Can Roll', 'Work Had Expire',
  405. and 'Work Roll Time' to the pool stats
  406. 'config' - include 'ScanTime'
  407. ----------
  408. API V1.17b (BFGMiner v2.7.1)
  409. Modified API commands:
  410. 'summary' - add 'Work Utility'
  411. 'pools' - add 'Diff1 Shares'
  412. ----------
  413. API V1.17 (BFGMiner v2.6.5)
  414. Added API commands:
  415. 'coin'
  416. ----------
  417. API V1.16 (BFGMiner v2.6.5)
  418. Added API commands:
  419. 'failover-only'
  420. Modified API commands:
  421. 'config' - include failover-only state
  422. ----------
  423. API V1.15 (BFGMiner v2.5.2)
  424. Added API commands:
  425. 'poolpriority'
  426. ----------
  427. API V1.14 (BFGMiner v2.5.0)
  428. Modified API commands:
  429. 'stats' - more Icarus timing stats added
  430. 'notify' - include new device comms error counter
  431. The internal code for handling data was rewritten (~25% of the code)
  432. Completely backward compatible
  433. ----------
  434. API V1.13 (BFGMiner v2.4.4)
  435. Added API commands:
  436. 'check'
  437. Support was added to BFGMiner for API access groups with the --api-groups option
  438. It's 100% backward compatible with previous --api-access commands
  439. ----------
  440. API V1.12 (BFGMiner v2.4.3)
  441. Modified API commands:
  442. 'stats' - more pool stats added
  443. Support for the ModMiner FPGA was added
  444. ----------
  445. API V1.11 (BFGMiner v2.4.2)
  446. Modified API commands:
  447. 'save' no longer requires a filename (use default if not specified)
  448. 'save' incorrectly returned status E (error) on success before.
  449. It now correctly returns S (success)
  450. ----------
  451. API V1.10 (BFGMiner v2.4.1)
  452. Added API commands:
  453. 'stats'
  454. N.B. the 'stats' command can change at any time so any specific content
  455. present should not be relied upon.
  456. The data content is mainly used for debugging purposes or hidden options
  457. in BFGMiner and can change as development work requires
  458. Modified API commands:
  459. 'pools' added "Last Share Time"
  460. ----------
  461. API V1.9 (BFGMiner v2.4.0)
  462. Added API commands:
  463. 'restart'
  464. Modified API commands:
  465. 'notify' corrected invalid JSON
  466. ----------
  467. API V1.8 (BFGMiner v2.3.5)
  468. Added API commands:
  469. 'devdetails'
  470. Support for the ZTEX FPGA was added
  471. ----------
  472. API V1.8-pre (BFGMiner v2.3.4)
  473. Added API commands:
  474. 'devdetail'
  475. ----------
  476. API V1.7 (BFGMiner v2.3.4)
  477. Added API commands:
  478. 'removepool'
  479. Modified API commands:
  480. 'pools' added "User"
  481. From API version 1.7 onwards, reply strings in JSON and Text have the
  482. necessary escaping as required to avoid ambiguity
  483. For JSON the 2 characters '"' and '\' are escaped with a '\' before them
  484. For Text the 4 characters '|' ',' '=' and '\' are escaped the same way
  485. ----------
  486. API V1.6 (cgminer v2.3.2)
  487. Added API commands:
  488. 'pga'
  489. 'pgaenable'
  490. 'pgadisable'
  491. 'pgacount'
  492. Modified API commands:
  493. 'devs' now includes Icarus and BitForce FPGA devices
  494. 'notify' added "*" to the front of the name of all numeric error fields
  495. 'config' correct "Log Interval" to use numeric (not text) type for JSON
  496. Support for Icarus and BitForce FPGAs was added
  497. ----------
  498. API V1.5 was not released
  499. ----------
  500. API V1.4 (Kano's interim release of cgminer v2.3.1)
  501. Added API commands:
  502. 'notify'
  503. Modified API commands:
  504. 'config' added "Device Code" and "OS"
  505. Added "When" to the STATUS reply section of all commands
  506. ----------
  507. API V1.3 (cgminer v2.3.1-2)
  508. Added API commands:
  509. 'addpool'
  510. Modified API commands:
  511. 'devs'/'gpu' added "Total MH" for each device
  512. 'summary' added "Total MH"
  513. ----------
  514. API V1.2 (cgminer v2.3.0)
  515. Added API commands:
  516. 'enablepool'
  517. 'disablepool'
  518. 'privileged'
  519. Modified API commands:
  520. 'config' added "Log Interval"
  521. Starting with API V1.2, any attempt to access a command that requires
  522. privileged security, from an IP address that does not have privileged
  523. security, will return an "Access denied" Error Status
  524. ----------
  525. API V1.1 (cgminer v2.2.4)
  526. There were no changes to the API commands in cgminer v2.2.4,
  527. however support was added to cgminer for IP address restrictions
  528. with the --api-allow option
  529. ----------
  530. API V1.1 (cgminer v2.2.2)
  531. Prior to V1.1, devs/gpu incorrectly reported GPU0 Intensity for all GPUs
  532. Modified API commands:
  533. 'devs'/'gpu' added "Last Share Pool" and "Last Share Time" for each device
  534. ----------
  535. API V1.0 (cgminer v2.2.0)
  536. Remove default CPU support
  537. Added API commands:
  538. 'config'
  539. 'gpucount'
  540. 'cpucount'
  541. 'switchpool'
  542. 'gpuintensity'
  543. 'gpumem'
  544. 'gpuengine'
  545. 'gpufan'
  546. 'gpuvddc'
  547. 'save'
  548. ----------
  549. API V0.7 (cgminer v2.1.0)
  550. Initial release of the API in the main cgminer git
  551. Commands:
  552. 'version'
  553. 'devs'
  554. 'pools'
  555. 'summary'
  556. 'gpuenable'
  557. 'gpudisable'
  558. 'gpurestart'
  559. 'gpu'
  560. 'cpu'
  561. 'gpucount'
  562. 'cpucount'
  563. 'quit'
  564. ----------------------------------------
  565. miner.php
  566. =========
  567. miner.php is a PHP based interface to the BFGMiner RPC API
  568. (referred to simply as the API below)
  569. It can show rig details, summaries and input fields to allow you to change
  570. BFGMiner
  571. You can also create custom summary pages with it
  572. It has two levels to the security:
  573. 1) BFGMiner can be configured to allow or disallow API access and access level
  574. security for miner.php
  575. 2) miner.php can be configured to allow or disallow privileged BFGMiner
  576. access, if BFGMiner is configured to allow privileged access for miner.php
  577. ---------
  578. To use miner.php requires a web server with PHP
  579. Basics: On Xubuntu 11.04, to install Apache and PHP, the commands are:
  580. sudo apt-get install apache2
  581. sudo apt-get install php5
  582. sudo /etc/init.d/apache2 reload
  583. On Fedora 17:
  584. yum install httpd php
  585. systemctl restart httpd.service
  586. systemctl enable httpd.service --system
  587. On windows there are a few options.
  588. Try one of these (apparently the first one is easiest - thanks jborkl)
  589. http://www.easyphp.org/
  590. http://www.apachefriends.org/en/xampp.html
  591. http://www.wampserver.com/en/
  592. ---------
  593. The basic BFGMiner option to enable the API is:
  594. --api-listen
  595. or in your bfgminer.conf
  596. "api-listen" : true,
  597. (without the ',' on the end if it is the last item)
  598. If the web server is running on the BFGMiner computer, the above
  599. is the only change required to give miner.php basic access to
  600. the BFGMiner API
  601. -
  602. If the web server runs on a different computer to BFGMiner,
  603. you will also need to tell BFGMiner to allow the web server
  604. to access BFGMiner's API and tell miner.php where BFGMiner is
  605. Assuming a.b.c.d is the IP address of the web server, you
  606. would add the following to BFGMiner:
  607. --api-listen --api-allow a.b.c.d
  608. or in your bfgminer.conf
  609. "api-listen" : true,
  610. "api-allow" : "a.b.c.d",
  611. to tell BFGMiner to give the web server read access to the API
  612. You also need to tell miner.php where BFGMiner is.
  613. Assuming BFGMiner is at IP address e.f.g.h, then you would
  614. edit miner.php and change the line
  615. $rigs = array('127.0.0.1:4028');
  616. to
  617. $rigs = array('e.f.g.h:4028');
  618. See --api-network or --api-allow for more access details
  619. and how to give write access
  620. ---------
  621. Once you have a web server with PHP running
  622. copy your miner.php to the main web folder
  623. On Xubuntu 11.04
  624. /var/www/
  625. On Fedora 17
  626. /var/www/html/
  627. On Windows
  628. see your windows Web/PHP documentation
  629. Assuming the IP address of the web server is a.b.c.d
  630. Then in your web browser go to:
  631. http://a.b.c.d/miner.php
  632. Done :)
  633. ---------
  634. The rest of this documentation deals with the more complex
  635. functions of miner.php, using myminer.php, creating custom
  636. summaries and displaying multiple BFGMiner rigs
  637. ---------
  638. If you create a file called myminer.php in the same web folder
  639. where you put miner.php, miner.php will load it when it runs
  640. This is useful, to put any changes you need to make to miner.php
  641. instead of changing miner.php
  642. Thus if you update/get a new miner.php, you won't lose the changes
  643. you have made if you put all your changes in myminer.php
  644. (and don't change miner.php at all)
  645. A simple example myminer.php that defines 2 rigs
  646. (that I will keep referring to further below) is:
  647. <?php
  648. #
  649. $rigs = array('192.168.0.100:4028:A', '192.168.0.102:4028:B');
  650. #
  651. ?>
  652. Changes in myminer.php supersede what is in miner.php
  653. However, this is only valid for variables in miner.php before the
  654. 2 lines where myminer.php is included by miner.php:
  655. if (file_exists('myminer.php'))
  656. include_once('myminer.php');
  657. Every variable in miner.php above those 2 lines, can be changed by
  658. simply defining them in your myminer.php
  659. So although miner.php originally contains the line
  660. $rigs = array('127.0.0.1:4028');
  661. if you created the example myminer.php given above, it would actually
  662. change the value of $rigs that is used when miner.php is running
  663. i.e. you don't have to remove or comment out the $rigs line in miner.php
  664. It will be superseded by myminer.php
  665. ---------
  666. The example.php above also shows how to define more that one rig to
  667. be shown my miner.php
  668. Each rig string is 2 or 3 values separated by colons ':'
  669. They are simply an IP address or host name, followed by the
  670. port number (usually 4028) and an optional Name string
  671. miner.php displays rig buttons that will show the details of a single
  672. rig when you click on it - the button shows either the rig number,
  673. or the 'Name' string if you provide it
  674. PHP arrays contain each string separated by a comma, but no comma after
  675. the last one
  676. So an example for 3 rigs would be:
  677. $rigs = array('192.168.0.100:4028:A', '192.168.0.102:4028:B', '192.168.0.110:4028:C');
  678. Of course each of the rigs listed would also have to have the API
  679. running and be set to allow the web server to access the API - as
  680. explained before
  681. ---------
  682. So basically, any variable explained below can be put in myminer.php
  683. if you wanted to set it to something different from its default value
  684. and did not want to change miner.php itself every time you updated it
  685. Below is each variable that can be changed and an explanation of each
  686. ---------
  687. Default:
  688. $dfmt = 'H:i:s j-M-Y \U\T\CP';
  689. Define the date format used to print full length dates
  690. If you get the string 'UTCP' on the end of your dates shown, that
  691. means you are using an older version of PHP and you can instead use:
  692. $dfmt = 'H:i:s j-M-Y \U\T\CO';
  693. The PHP documentation on the date format is here:
  694. http://us.php.net/manual/en/function.date.php
  695. ---------
  696. Default:
  697. $title = 'Mine';
  698. Web page title
  699. If you know PHP you can of course use code to define it e.g.
  700. $title = 'My Rig at: '.date($dfmt);
  701. Which would set the web page title to something like:
  702. My Rig at: 10:34:00 22-Aug-2012 UTC+10:00
  703. ---------
  704. Default:
  705. $readonly = false;
  706. Set $readonly to true to force miner.php to be readonly
  707. This means it won't allow you to change BFGMiner even if the RPC API
  708. options allow it to
  709. If you set $readonly to false then it will check BFGMiner 'privileged'
  710. and will show input fields and buttons on the single rig page
  711. allowing you to change devices, pools and even quit or restart
  712. BFGMiner
  713. However, if the 'privileged' test fails, the code will set $readonly to
  714. true
  715. ---------
  716. Default:
  717. $userlist = null;
  718. Define password checking and default access null means there is no password
  719. checking
  720. $userlist is an array of 3 arrays e.g.
  721. $userlist = array('sys' => array('boss' => 'bpass'),
  722. 'usr' => array('user' => 'upass', 'pleb' => 'ppass'),
  723. 'def' => array('Pools'));
  724. 'sys' is an array of system users and passwords (full access)
  725. 'usr' is an array of user level users and passwords (readonly access)
  726. 'def' is an array of custompages that anyone not logged in can view
  727. Any of the 3 can be null, meaning there are none of that item
  728. All validated 'usr' users are given $readonly = true; access
  729. All validated 'sys' users are given the $readonly access you defined
  730. If 'def' has one or more values, and allowcustompages is true, then anyone
  731. without a password can see the list of custompage buttons given in 'def' and
  732. will see the first one when they go to the web page, with a login button at the
  733. top right
  734. From the login page, if you login with no username or password, it will show
  735. the first 'def' custompage (if there are any)
  736. If you are logged in, it will show a logout button at the top right
  737. ---------
  738. Default:
  739. $notify = true;
  740. Set $notify to false to NOT attempt to display the notify command table of data
  741. Set $notify to true to attempt to display the notify command on the single rig
  742. page
  743. If your older version of BFGMiner returns an 'Invalid command' because it
  744. doesn't have notify - it just shows the error status table
  745. ---------
  746. Default:
  747. $checklastshare = true;
  748. Set $checklastshare to true to do the following checks:
  749. If a device's last share is 12x expected ago then display as an error
  750. If a device's last share is 8x expected ago then display as a warning
  751. If either of the above is true, also display the whole line highlighted
  752. This assumes shares are 1 difficulty shares
  753. Set $checklastshare to false to not do the above checks
  754. 'expected' is calculated from the device Mh/s value
  755. So for example, a device that hashes at 380Mh/s should (on average) find a
  756. share every 11.3s
  757. If the last share was found more than 11.3 x 12 seconds (135.6s) ago, it is
  758. considered an error and highlighted
  759. If the last share was found more than 11.3 x 8 seconds (90.4s) ago, it is
  760. considered a warning and highlighted
  761. The default highlighting is very subtle
  762. ---------
  763. Default:
  764. $poolinputs = false;
  765. Set $poolinputs to true to show the input fields for adding a pool and changing
  766. the pool priorities on a single rig page
  767. However, if $readonly is true, it will not display them
  768. ---------
  769. Default:
  770. $rigs = array('127.0.0.1:4028');
  771. Set $rigs to an array of your BFGMiner rigs that are running format: 'IP:Port'
  772. or 'Host:Port' or 'Host:Port:Name'
  773. If you only have one rig, it will just show the detail of that rig
  774. If you have more than one rig it will show a summary of all the rigs with
  775. buttons to show the details of each rig - the button contents will be 'Name'
  776. rather than rig number, if you specify 'Name'
  777. e.g. $rigs = array('127.0.0.1:4028','myrig.com:4028:Sugoi');
  778. ---------
  779. Default:
  780. $rigipsecurity = true;
  781. Set $rigipsecurity to false to show the IP/Port of the rig in the socket error
  782. messages and also show the full socket message
  783. ---------
  784. Default:
  785. $rigtotals = true;
  786. $forcerigtotals = false;
  787. Set $rigtotals to true to display totals on the single rig page 'false' means
  788. no totals (and ignores $forcerigtotals)
  789. If $rigtotals is true, all data is also right aligned
  790. With false, it's as before, left aligned
  791. This option is just here to allow people to set it to false if they prefer the
  792. old non-total display when viewing a single rig
  793. Also, if there is only one line shown in any section, then no total will be
  794. shown (to save screen space)
  795. You can force it to always show rig totals on the single rig page, even if
  796. there is only one line, by setting $forcerigtotals = true;
  797. ---------
  798. Default:
  799. $socksndtimeoutsec = 10;
  800. $sockrcvtimeoutsec = 40;
  801. The numbers are integer seconds
  802. The defaults should be OK for most cases
  803. However, the longer SND is, the longer you have to wait while PHP hangs if the
  804. target BFGMiner isn't running or listening
  805. RCV should only ever be relevant if BFGMiner has hung but the API thread is
  806. still running, RCV would normally be >= SND
  807. Feel free to increase SND if your network is very slow or decrease RCV if that
  808. happens often to you
  809. Also, on some windows PHP, apparently the $usec is ignored (so usec can't be
  810. specified)
  811. ---------
  812. Default:
  813. $hidefields = array();
  814. List of fields NOT to be displayed
  815. You can use this to hide data you don't want to see or don't want shown on a
  816. public web page
  817. The list of sections are:
  818. SUMMARY, POOL, PGA, GPU, NOTIFY, CONFIG, DEVDETAILS, DEVS
  819. See the web page for the list of field names (the table headers)
  820. It is an array of 'SECTION.Field Name' => 1
  821. This example would hide the slightly more sensitive pool information:
  822. Pool URL and pool username:
  823. $hidefields = array('POOL.URL' => 1, 'POOL.User' => 1);
  824. If you just want to hide the pool username:
  825. $hidefields = array('POOL.User' => 1);
  826. ---------
  827. Default:
  828. $ignorerefresh = false;
  829. $changerefresh = true;
  830. $autorefresh = 0;
  831. Auto-refresh of the page (in seconds) - integers only
  832. $ignorerefresh = true/false always ignore refresh parameters
  833. $changerefresh = true/false show buttons to change the value
  834. $autorefresh = default value, 0 means don't auto-refresh
  835. ---------
  836. Default:
  837. $placebuttons = 'top';
  838. Where to place the Refresh, Summary, Custom Pages, Quit, etc. buttons
  839. Valid values are: 'top' 'bot' 'both'
  840. anything else means don't show them - case sensitive
  841. ---------
  842. Default:
  843. $miner_font_family = 'verdana,arial,sans';
  844. $miner_font_size = '13pt';
  845. Change these to set the font and font size used on the web page
  846. ---------
  847. Default:
  848. $colouroverride = array();
  849. Use this to change the web page colour scheme
  850. See $colourtable in miner.php for the list of possible names to change
  851. Simply put in $colouroverride, just the colours you wish to change
  852. e.g. to change the colour of the header font and background
  853. you could do the following:
  854. $colouroverride = array(
  855. 'td.h color' => 'green',
  856. 'td.h background' => 'blue'
  857. );
  858. ---------
  859. Default:
  860. $allowcustompages = true;
  861. Should we allow custom pages?
  862. (or just completely ignore them and don't display the buttons)
  863. ---------
  864. OK this part is more complex: Custom Summary Pages
  865. A custom summary page in an array of 'section' => array('FieldA','FieldB'...)
  866. The section defines what data you want in the summary table and the Fields
  867. define what data you want shown from that section
  868. Standard sections are:
  869. SUMMARY, POOL, PGA, GPU, NOTIFY, CONFIG, DEVDETAILS, DEVS, STATS, COIN
  870. Fields are the names as shown on the headers on the normal pages
  871. Fields can be 'name=new name' to display 'name' with a different heading
  872. 'new name'
  873. There are also now joined sections:
  874. SUMMARY+POOL, SUMMARY+DEVS, SUMMARY+CONFIG, DEVS+NOTIFY, DEVS+DEVDETAILS
  875. SUMMARY+COIN
  876. These sections are an SQL join of the two sections and the fields in them
  877. are named section.field where section. is the section the field comes from
  878. See the example further down
  879. Also note:
  880. - empty tables are not shown
  881. - empty columns (e.g. an unknown field) are not shown
  882. - missing field data shows as blank
  883. - the field name '*' matches all fields except in joined sections
  884. (useful for STATS and COIN)
  885. There are 2 hard coded sections:
  886. DATE - displays a date table like at the start of 'Summary'
  887. RIGS - displays a rig table like at the start of 'Summary'
  888. Each custom summary requires a second array, that can be empty, listing fields
  889. to be totalled for each section
  890. If there is no matching total data, no total will show
  891. ---------
  892. Looking at the Mobile example:
  893. $mobilepage = array(
  894. 'DATE' => null,
  895. 'RIGS' => null,
  896. 'SUMMARY' => array('Elapsed', 'MHS av', 'Found Blocks=Blks',
  897. Accepted', 'Rejected=Rej', 'Utility'),
  898. 'DEVS+NOTIFY' => array('DEVS.Name=Name', 'DEVS.ID=ID', 'DEVS.ProcID=Proc',
  899. 'DEVS.Status=Status',
  900. 'DEVS.Temperature=Temp', 'DEVS.MHS av=MHS av',
  901. 'DEVS.Accepted=Accept', 'DEVS.Rejected=Rej',
  902. 'DEVS.Utility=Utility', 'NOTIFY.Last Not Well=Not Well'),
  903. 'POOL' => array('POOL', 'Status', 'Accepted', 'Rejected=Rej', 'Last Share Time'));
  904. $mobilesum = array(
  905. 'SUMMARY' => array('MHS av', 'Found Blocks', 'Accepted', 'Rejected', 'Utility'),
  906. 'DEVS+NOTIFY' => array('DEVS.MHS av', 'DEVS.Accepted', 'DEVS.Rejected', 'DEVS.Utility'),
  907. 'POOL' => array('Accepted', 'Rejected'));
  908. $customsummarypages = array('Mobile' => array($mobilepage, $mobilesum));
  909. This will show 5 tables (according to $mobilepage)
  910. Each table will have the chosen details for all the rigs specified in $rigs
  911. DATE
  912. A single box with the web server's current date and time
  913. RIGS
  914. A table of the rigs: description, time, versions etc
  915. SUMMARY
  916. This will use the API 'summary' command and show the selected fields:
  917. Elapsed, MHS av, Found Blocks, Accepted, Rejected and Utility
  918. However, 'Rejected=Rej' means that the header displayed for the 'Rejected'
  919. field will be 'Rej', instead of 'Rejected' (to save space)
  920. Same for 'Found Blocks=Blks' - to save space
  921. DEVS+NOTIFY
  922. This will list each of the devices on each rig and display the list of
  923. fields as shown
  924. It will also include the 'Last Not Well' field from the 'notify' command
  925. so you know when the device was last not well
  926. You will notice that you need to rename each field e.g. 'DEVS.Name=Name'
  927. since each field name in the join between DEVS and NOTIFY is actually
  928. section.fieldname, not just fieldname
  929. The join code automatically adds 2 fields to each GPU device: 'Name', 'ID',
  930. and 'ProcID'. They don't exist in the API 'devs' output but we can correctly
  931. calculate them from the GPU device data. These two fields are used to join
  932. DEVS to NOTIFY: i.e. find the NOTIFY record that has the same Name/ID/ProcID
  933. as the DEVS record and join them.
  934. POOL
  935. This will use the API 'pools' command and show the selected fields:
  936. POOL, Status, Accepted, Rejected, Last Share Time
  937. Again, I renamed the 'Rejected' field using 'Rejected=Rej', to save space
  938. $mobilesum lists the sections and fields that should have a total
  939. You can't define them for 'DATE' or 'RIGS' since they are hard coded tables
  940. The example given:
  941. SUMMARY
  942. Show a total at the bottom of the columns for:
  943. MHS av, Found Blocks, Accepted, Rejected, Utility
  944. Firstly note that you use the original name i.e. for 'Rejected=Rej'
  945. you use 'Rejected', not 'Rej' and not 'Rejected=Rej'
  946. Secondly note that it simply adds up the fields
  947. If you ask for a total of a string field you will get the numerical
  948. sum of the string data
  949. DEVS+NOTIFY
  950. Simply note in this join example that you must use the original field
  951. names which are section.fieldname, not just fieldname
  952. POOL
  953. Show a total at the bottom of the columns for:
  954. Accepted and Rejected
  955. Again remember to use the original field name 'Rejected'
  956. ---------
  957. With BFGMiner 2.10.1 and later, miner.php includes an extension to the custom
  958. pages that allows you to apply SQL style commands to the data: where, group,
  959. and having
  960. As an example, miner.php includes a more complex custom page called 'Pools'
  961. this includes the extension:
  962. $poolsext = array(
  963. 'POOL+STATS' => array(
  964. 'where' => null,
  965. 'group' => array('POOL.URL', 'POOL.Has Stratum',
  966. 'POOL.Stratum Active'),
  967. 'calc' => array('STATS.Bytes Sent' => 'sum',
  968. 'STATS.Bytes Recv' => 'sum'),
  969. 'having' => array(array('STATS.Bytes Recv', '>', 0)))
  970. );
  971. This allows you to group records together from one or more rigs
  972. In the example, you'll get each Pool (with the same URL+Stratum info) listed
  973. once for all rigs and a sum of each of the fields listed in 'calc'
  974. 'where' and 'having' are an array of fields and restrictions to apply
  975. In the above example, it will only display the rows where it contains the
  976. 'STATS.Bytes Recv' field with a value greater than zero
  977. If the row doesn't have the field, it will always be included
  978. All restrictions must be true in order for the row to be included
  979. Any restiction that is invalid or unknown is true
  980. An empty array, or null, means there are no restrictions
  981. A restriction is formatted as: array('Field', 'restriction', 'value')
  982. Field is the simple field name as normally displayed, or SECTION.Field if it is
  983. a joined section (as in this case 'POOL+STATS')
  984. The list of restrictions are:
  985. 'set' - true if the row contains the 'Field' ('value' is not required or used)
  986. '=', '<', '<=', '>', '>' - a numerical comparison
  987. 'eq', 'lt', 'le', 'gt', 'ge' - a case insensitive string comparison
  988. You can have multiple restrictions on a 'Field' - but all must be true to
  989. include the row containing the 'Field'
  990. e.g. a number range between 0 and 10 would be:
  991. array('STATS.Bytes Recv', '>', 0), array('STATS.Bytes Recv', '<', 10)
  992. The difference between 'where' and 'having' is that 'where' is applied to the
  993. data before grouping it and 'having' is applied to the data after grouping it
  994. - otherwise they work the same
  995. 'group' lists the fields to group over and 'calc' lists the function to apply
  996. to other fields that are not part of 'group'
  997. You can only see fields listed in 'group' and 'calc'
  998. A 'calc' is formatted as: 'Field' => 'function'
  999. The current list of operations available for 'calc' are:
  1000. 'sum', 'avg', 'min', 'max', 'lo', 'hi', 'any'
  1001. The first 4 are as expected - the numerical sum, average, minimum or maximum
  1002. 'lo' is the first string of the list, sorted ignoring case
  1003. 'hi' is the last string of the list, sorted ignoring case
  1004. 'any' is effectively random: the field value in the first row of the grouped data
  1005. An unrecognised 'function' uses 'any'