Running DAQ Interface » History » Version 69

John Freeman, 11/21/2014 05:41 PM

1 58 John Freeman
2 58 John Freeman
3 49 Erik Blaufuss
h1. Getting help
4 1 John Freeman
5 49 Erik Blaufuss
If you run into issues, or have questions, please contact:
6 49 Erik Blaufuss
* DAQInterface
7 49 Erik Blaufuss
** John Freeman -
8 62 John Freeman
* RunControl
9 49 Erik Blaufuss
** Erik Blaufuss -
10 66 John Freeman
* Configuration Manager
11 66 John Freeman
** Jon Paley -
12 1 John Freeman
13 1 John Freeman
h1. Starting DAQInterface and Run Control
14 1 John Freeman
15 66 John Freeman
The DAQ software, consisting of RunControl, the configuration manager and DAQInterface (as well as the artdaq processes it controls) is designed to be run on, using the lbnedaq account. If you need access to the account, please contact one of us.
16 66 John Freeman
Primarily of developer (as opposed to user) interest, DAQInterface and RunControl software can also be run on the lbnedaqtest01 VM machine, please contact John Freeman at, for more details.
17 49 Erik Blaufuss
18 66 John Freeman
The installed code is located at To get started, login and first setup the environment:
19 49 Erik Blaufuss
20 30 John Freeman
21 33 John Freeman
22 1 John Freeman
cd /data/lbnedaq/scratch/DAQInterface
23 1 John Freeman
source fireup
24 1 John Freeman
25 1 John Freeman
26 66 John Freeman
This will take you into the /data/lbnedaq/scratch/DAQInterface/lbnerc directory. It's a good idea to check whether lbnecontrol (the RunControl application), DAQInterface (the component which intermediates between RunControl, the configuration manager, and the artdaq processes) and the configuration manager are already running; if they aren't, the instructions below won't work. Also worth noting is that as of 11/21/14, attempts to use multiple DAQs (implying multiple instances of RunControl, DAQInterface, etc.) has not been attempted and likely will not work. To check for RunControl and DAQInterface, you can try:
27 1 John Freeman
28 1 John Freeman
29 49 Erik Blaufuss
lbnecmd check
30 1 John Freeman
31 1 John Freeman
32 61 John Freeman
This will display the current state of DAQInterface and RunControl. The example below shows that both RunControl and DAQInterface are running, but the DAQ run is in the stopped state:
33 49 Erik Blaufuss
34 49 Erik Blaufuss
(env)[lbnedaq@lbne35t-gateway01 lbnerc]$ lbnecmd check
35 49 Erik Blaufuss
lbnecontrol: running
36 49 Erik Blaufuss
daqint@localhost:5770 (synchronous): stopped
37 49 Erik Blaufuss
38 1 John Freeman
39 49 Erik Blaufuss
If RunControl is not running, you'll see something like:
40 1 John Freeman
41 49 Erik Blaufuss
(env)[lbnedaq@lbne35t-gateway01 lbnerc]$ lbnecmd check
42 49 Erik Blaufuss
check failed: '[Errno 111] Connection refused'.  Is lbnecontrol running?
43 1 John Freeman
44 1 John Freeman
45 61 John Freeman
To check whether the configuration manager is running, you can simply use Linux commands:
46 61 John Freeman
47 61 John Freeman
48 61 John Freeman
ps aux | grep -v grep | grep CfgMgrApp
49 61 John Freeman
50 61 John Freeman
51 61 John Freeman
This will either return info on the CfgMgrApp process, or print nothing if it's not running. 
52 61 John Freeman
53 1 John Freeman
h3. Starting RunControl
54 49 Erik Blaufuss
55 49 Erik Blaufuss
To start RunControl (after loading environment as above):
56 60 John Freeman
57 67 Erik Blaufuss
rm /tmp/  (This should only be necessary of RunControl software wasn't stopped cleanly)
58 49 Erik Blaufuss
lbnecmd launch
59 49 Erik Blaufuss
60 1 John Freeman
61 1 John Freeman
h3. Starting DAQInterface
62 1 John Freeman
63 61 John Freeman
To start DAQInterface (after loading environment as above), the basic command is:
64 1 John Freeman
65 61 John Freeman
daqinterface -n daqint -r 5570 -c localhost -H localhost &
66 61 John Freeman
67 61 John Freeman
However, particularly if multiple users with different terminals wish to check the DAQ output, it is recommended to try:
68 61 John Freeman
69 49 Erik Blaufuss
stdbuf -oL daqinterface -n daqint -r 5570 -c localhost -H localhost >>~/DI.log 2>&1 &
70 1 John Freeman
71 1 John Freeman
This will launch daqinterface in the background, with all messages being collected (appended to the bottom of...) in the file ~/DI.log  (The stdbuf -oL prevents and buffering of output to the file)
72 63 John Freeman
Here, the "daqint" argument is arbitrary, and is the name you'll give the DAQInterface process in RunControl; the "5570" argument is the port off of which DAQInterface will run.
73 1 John Freeman
74 1 John Freeman
h3. Starting the configuration manager
75 63 John Freeman
76 62 John Freeman
Please see Jon Paley's documentation here:
77 62 John Freeman
78 61 John Freeman
h3. Forcing cleanup: performing a hard reset of RunControl, DAQInterface and the configuration manager
79 49 Erik Blaufuss
80 1 John Freeman
If needed, you can track down the process names and kill them explicitly to get a clean reset:
81 1 John Freeman
82 49 Erik Blaufuss
ps aux | grep -v grep | grep lbnecontrol
83 49 Erik Blaufuss
ps aux | grep -v grep | grep daqinterface
84 61 John Freeman
ps aux | grep -v grep | grep CfgMgrApp
85 49 Erik Blaufuss
86 61 John Freeman
If these processes are running, it either means that someone else is using the DAQ, or that someone else who's done using it forgot to clean up. As the 9th and 10th fields of the row of variables "ps aux" returns concern how long the program has been running, you can use these values as well as your best judgement, then, before deciding these processes are not in active use and killing them.   To kill them, the second field returned from "ps aux" is the process id (PID), use:
87 1 John Freeman
88 49 Erik Blaufuss
kill <PID>
89 1 John Freeman
90 1 John Freeman
91 61 John Freeman
h1. Configuring and starting Runs
92 1 John Freeman
93 61 John Freeman
Now, you can take the DAQ system through the standard transitions to start a DAQ run.  At all stages, you can use the "lbnecmd check" command to see what state DAQInterface is in; note that you'll want to wait for a transition to complete before issuing another one, otherwise you'll receive a warning and the transition request will be ignored. DAQInterface will also report to its log file when transitions are complete:
94 49 Erik Blaufuss
95 49 Erik Blaufuss
Initialize transition complete; if running DAQInterface in the background, can press <enter> to return to shell prompt
96 61 John Freeman
97 1 John Freeman
Note that if a high "debug level" has been set (see below for more on this), this message can get buried in a set of output messages; in this case "lbnecmd check" may be the easiest way to determine what state the system is in. 
98 1 John Freeman
99 62 John Freeman
h2.  Selecting a configuration and DAQ components
100 49 Erik Blaufuss
101 1 John Freeman
*Before initializing or starting a DAQ run*, a configuration and set of DAQComponents must be selected.  This is done via RunControl.
102 1 John Freeman
103 49 Erik Blaufuss
h3. List and select a configuration:
104 1 John Freeman
105 62 John Freeman
To see the list of available configurations (queried from the configuration manager):
106 49 Erik Blaufuss
107 49 Erik Blaufuss
lbnecmd listconfigs
108 1 John Freeman
109 49 Erik Blaufuss
Will return a list of configs:
110 49 Erik Blaufuss
111 49 Erik Blaufuss
Available configs (Name : description)
112 1 John Freeman
113 49 Erik Blaufuss
demo : Pithy description
114 49 Erik Blaufuss
tmp1 : Pithy description
115 49 Erik Blaufuss
116 30 John Freeman
117 49 Erik Blaufuss
Current selected config: No Config
118 49 Erik Blaufuss
119 49 Erik Blaufuss
This lists all available configs, as well as the current selected config (Note, default config is "No Config").  You can then select a configuration:
120 49 Erik Blaufuss
121 49 Erik Blaufuss
lbnecmd setconfig demo
122 1 John Freeman
123 64 John Freeman
This will return "OK" if successful; "lbnecmd listconfigs" will then show this as the current config.  If the specified configuration is not known, an error is returned.
124 1 John Freeman
125 49 Erik Blaufuss
h3. List and select DAQ components.
126 1 John Freeman
127 62 John Freeman
You can select which portions of the LBNE DAQ setup you want to use in the upcoming run.  These are mapped generally to the ArtDAQ BoardReaderMain processes
128 62 John Freeman
that read them out.   As an operator, you need to ensure that there are configuration files available in the configuration manager for the DAQ Components that you select here,
129 1 John Freeman
or DAQInterface will return an error.
130 38 John Freeman
131 1 John Freeman
To see the list of available DAQ components:
132 49 Erik Blaufuss
133 1 John Freeman
lbnecmd listdaqcomps
134 49 Erik Blaufuss
135 62 John Freeman
Will return a list of components available and selected (*Default* is ALL available components), e.g.:
136 1 John Freeman
137 49 Erik Blaufuss
{'available': {'component02': ['lbnedaq2', '5206'], 'component01': ['lbnedaq2', '5205']}}
138 49 Erik Blaufuss
{'selected': {'component02': ['lbnedaq2', '5206'], 'component01': ['lbnedaq2', '5205']}}
139 49 Erik Blaufuss
140 62 John Freeman
Shown are the available components by name, along with the requested host/port to run the BoardReaderMain process on. You can then select a list of DAQ components to use in the run:
141 49 Erik Blaufuss
142 49 Erik Blaufuss
lbnecmd setdaqcomps component01 component02
143 49 Erik Blaufuss
144 62 John Freeman
This will return "OK" if successful ("lbnecmd listdaqcomps" will show this in the "selected" row of components).  If the specified compnents are not known, an error is returned.
145 49 Erik Blaufuss
To change the list of available components, see below.
146 29 John Freeman
147 49 Erik Blaufuss
h2. Configuring, starting, stopping and terminating a Run
148 1 John Freeman
149 66 John Freeman
For each of these transitions, please recall that while "lbnecmd <cmd>" returns very quickly, the actual issued command can take several seconds or minutes to complete.  Before issuing another command, be sure that the transition is complete by using the check command:
150 1 John Freeman
151 49 Erik Blaufuss
lbnecmd check
152 1 John Freeman
153 62 John Freeman
For example, before issuing the "start" transition, you can use this command to ensure that the DAQ is in the "ready" state and not still in the "initializing" stage.
154 1 John Freeman
155 49 Erik Blaufuss
First, take DAQInterface from the "stopped" to the "ready" state; this will create the artdaq processes on the hosts you selected (DAQ components), and initialize them with the FHiCL configuration:
156 1 John Freeman
157 1 John Freeman
lbnecmd init daq
158 1 John Freeman
159 1 John Freeman
160 49 Erik Blaufuss
Take DAQInterface from the "ready" to the "running" state, in order to begin taking data:
161 29 John Freeman
162 1 John Freeman
lbnecmd start daq
163 29 John Freeman
164 49 Erik Blaufuss
Note: the current run number is displayed when DAQ is in the running state using the "lbnecmd check" command:
165 49 Erik Blaufuss
166 49 Erik Blaufuss
lbnecmd check
167 49 Erik Blaufuss
lbnecontrol: running
168 49 Erik Blaufuss
Run number: 207
169 49 Erik Blaufuss
Run configuration: demo
170 1 John Freeman
171 49 Erik Blaufuss
daqint@localhost:5570 (synchronous): running
172 49 Erik Blaufuss
173 49 Erik Blaufuss
174 49 Erik Blaufuss
Pause the running of the DAQ, putting DAQInterface into the "paused" state.  This will cause the current open output file to be closed and given a name reflecting the current run number:
175 22 John Freeman
176 21 John Freeman
lbnecmd pause daq
177 42 John Freeman
178 41 John Freeman
179 1 John Freeman
Resume the running of the DAQ, putting returning to the "running" state.  This will restart data taking to a new output file:
180 48 John Freeman
181 48 John Freeman
lbnecmd resume daq
182 48 John Freeman
183 48 John Freeman
184 48 John Freeman
Halt the running of the DAQ, returning DAQInterface to the "ready" state from the "running" state:
185 48 John Freeman
186 48 John Freeman
lbnecmd stop daq
187 49 Erik Blaufuss
188 49 Erik Blaufuss
From the ready state, you can start a new run with the same configuration and DAQ components you originally selected. 
189 62 John Freeman
*NOTE* To select a new configuration or DAQ component set, you must kill all ArtDAQ processes and return DAQInterface to its "stopped" state with the "terminate" command:
190 1 John Freeman
191 1 John Freeman
192 1 John Freeman
lbnecmd terminate daq
193 1 John Freeman
194 67 Erik Blaufuss
195 67 Erik Blaufuss
If you want to stop all RunControl processes (known as "lbnecontrol"):
196 67 Erik Blaufuss
197 67 Erik Blaufuss
lbnecmd kill
198 67 Erik Blaufuss
199 67 Erik Blaufuss
After this, you will need to relaunch RunControl as above.
200 1 John Freeman
201 49 Erik Blaufuss
h2. After your DAQ run.
202 1 John Freeman
203 49 Erik Blaufuss
Once you've completed your run, there are a few things you can look at. 
204 48 John Freeman
205 65 John Freeman
* A record of the DAQ's output will be saved in the subdirectory pmt/ relative to where you specified the output logfiles; thus given the "log directory" setting in the example config.txt below, you'd find the output in /data/lbnedaq/daqlogs/pmt/. 
206 65 John Freeman
* Also, a record of the FHiCL documents sent to the artdaq processes and the config.txt file will have been saved; as of this writing (11/12/14) the directory in which this can be found defaults to /data/lbnedaq/scratch/jcfree/TemporarySaveArea/<run number>, although as you might imagine the plan is to eventually change this directory. 
207 51 John Freeman
** PLEASE NOTE that there may be slight differences between the saved FHiCL documents and the FHiCL documents specified in config.txt and/or provided by the choice of configuration. The saved FHiCL document name is standardized to <processtype>_<host>_<port>_r<run number>.fcl, so, e.g, "Aggregator_lbnedaq2_5266_r192.fcl" would be the saved name of /data/lbnedaq/fcl/Aggregator_lbnedaq2_2.fcl, listed in the example config.txt file above, assuming datataking was performed in run 192. 
208 49 Erik Blaufuss
** More importantly, the FHiCL document actually sent to the artdaq process may be slightly different than the FHiCL document provided for DAQInterface; this is because DAQInterface performs some bookkeeping on FHiCL variables which account for things such as the number of processes of a given type (note that it makes no changes which would affect the physics). It is this post-bookkeeping FHiCL document which actually gets sent to the processes which gets saved to the output directory. 
209 52 John Freeman
* Output of the Art modules. Various Art modules may create various types of output. In particular, it's standard for one of the two AggregatorMains running in an artdaq-based DAQ to use Art's RootOutput module, which will save the assembled raw event in an Art-readable *.root file. The location of this output can be found in the FHiCL code used to control RootOutput. The other AggregatorMain typically will run other RootOutput modules designed to create plots, diagnostic printouts, etc.; the nature of the output here is too varied to neatly summarize, but checking the FHiCL code used to control these Art modules should reveal their output location.
210 1 John Freeman
211 49 Erik Blaufuss
h1. Configuring DAQInterface
212 49 Erik Blaufuss
213 52 John Freeman
DAQInterface has some key information stored in a local configuration file (location and ports for EventBuilders, Aggregators, location of artDAQ, log level, etc). These can be changed while DAQInterface is not running,  It's expected that for normal operations, these should not need to changed too often. Assuming the processes aren't running, before getting started, take a look at the configuration file, found in docs/config.txt (relative to /data/lbnedaq/scratch/DAQInterface/lbnerc). 
214 49 Erik Blaufuss
It should look something like the following:
215 1 John Freeman
216 49 Erik Blaufuss
lbne-artdaq: /data/lbnedaq/scratch/DAQInterface/build_lbne-artdaq
217 1 John Freeman
218 49 Erik Blaufuss
PMT host: lbnedaq3
219 49 Erik Blaufuss
220 49 Erik Blaufuss
pause before initialization: 5
221 49 Erik Blaufuss
222 49 Erik Blaufuss
# debug level can range from 0 to 3 (increasing order of verbosity)
223 49 Erik Blaufuss
debug level: 1
224 49 Erik Blaufuss
225 49 Erik Blaufuss
log directory:   /data/lbnedaq/daqlogs
226 49 Erik Blaufuss
227 49 Erik Blaufuss
record directory: /data/lbnedaq/scratch/jcfree/TemporarySaveArea/
228 49 Erik Blaufuss
229 1 John Freeman
 EventBuilder host: lbnedaq2
230 48 John Freeman
 EventBuilder port: 5235
231 48 John Freeman
 EventBuilder fhicl: /data/lbnedaq/fcl/EventBuilder_demo1.fcl
232 48 John Freeman
233 48 John Freeman
 EventBuilder host: lbnedaq2
234 48 John Freeman
 EventBuilder port: 5236
235 48 John Freeman
 EventBuilder fhicl: /data/lbnedaq/fcl/EventBuilder_demo2.fcl
236 48 John Freeman
237 48 John Freeman
 Aggregator host: lbnedaq2
238 48 John Freeman
 Aggregator port: 5265
239 41 John Freeman
240 1 John Freeman
 Aggregator host: lbnedaq2
241 21 John Freeman
 Aggregator port: 5266
242 49 Erik Blaufuss
243 1 John Freeman
244 49 Erik Blaufuss
The "lbne-artdaq" parameter allows the user to set the directory in which the desired build of lbne-artdaq to use is located, the "PMT host" parameter is the host on which artdaq's process management tool script (pmt.rb, used by DAQInterface to launch and kill the artdaq processes) will run, and "log directory" is the directory to which lbne-artdaq's output will be sent. The "debug level" parameter allows the user to set the verbosity level of the output to the screen; setting it to higher values creates greater verbosity, and as a practical matter, the range of settings is currently 0-3. Loosely speaking, "0" means minimal output (not much beyond simply announcing a transition is complete), "1" includes announcements of progress during transitions, "2" includes these announcements plus the values of certain variables as well as lbne-artdaq output, and "3" is primarily of developer interest. The "pause before initialization" parameter allows the user to set a pause, in seconds, between when the artdaq processes start and when they're initialized; it has been observed that a latency of a few seconds is needed for initialization to proceed correctly (though this is not always the case -- on lbne35t-gateway01, with a high setting for "debug level", a pause is not needed; the reason why "debug level" matters in this context is not yet understood).
245 49 Erik Blaufuss
246 53 John Freeman
After these individual parameters, one defines the EventBuilderMain and AggregatorMain artdaq processes. Specifically, an EventBuilderMain is defined in three lines, where each line should contain "EventBuilder", and define the host and port on which the EventBuilderMain will run (to run an artdaq process on the same host as you're on, use "localhost") as well as the FHiCL document used to initialize the EventBuilderMain. AggregatorMain is defined similarly, using the token "Aggregator", but without the FHiCL document supplied, as this is supplied by the choice of configuration in the configuration manager. Best practice is to place the EventBuilderMain's FHiCL documents in the /data/lbnedaq/fcl directory. Please note that the order of processes matters, and that they should be listed front-end to back-end, i.e., EventBuilders should appear before Aggregators.
247 49 Erik Blaufuss
248 57 John Freeman
h1. Adding new configurations to RunControl
249 57 John Freeman
250 68 John Freeman
Adding a new configuration selectable from RunControl involves two steps: creating a directory with the desired name of the configuration which contains the desired FHiCL documents, and then committing that directory to the git repository. 
251 68 John Freeman
252 68 John Freeman
As of 11/20/14, the FHiCL documents associated with a given configuration are stored within the directory
253 57 John Freeman
254 57 John Freeman
255 57 John Freeman
256 57 John Freeman
where "named_configuration" would be the name of the configuration, in this example. Within this directory, the following files are expected:
257 57 John Freeman
* Aggregator1.fcl and Aggregator2.fcl, used to initialize the two AggregatorMain processes in the DAQ system
258 57 John Freeman
* <named_component>_hw_cfg.fcl, used to initialize the BoardReaderMain process running the fragment generator associated with detector component "named_component". Note that there can be any number of such files associated with a configuration, as long as a given component is registered to RunControl (see below, "Adding new DAQ Components to RunControl")
259 59 John Freeman
260 59 John Freeman
There are existing examples of configurations currently within /data/lbnedaq/config which can be studied (and even copied) for further guidance; however, please disregard the "tmp1" and "tmp2" configurations. Note that the FHiCL documents in these directories contain some variables which are set to "PLACEHOLDER", e.g.
261 59 John Freeman
262 1 John Freeman
 event_builder_count: PLACEHOLDER
263 59 John Freeman
264 68 John Freeman
Note that this is not legal FHiCL, but that DAQInterface will substitute in the appropriate value before using the FHiCL document to initialize an artdaq process; here, for example, it would replace "PLACEHOLDER" with the actual number of EventBuilderMain processes being run.
265 1 John Freeman
266 68 John Freeman
Once you've added a new configuration to /data/lbnedaq/config, you'll need to perform a git commit. Essentially,  /data/lbnedaq/config is not merely a collection of directories naming configurations, but also a git repository. In fact, if you run
267 68 John Freeman
268 68 John Freeman
git log
269 68 John Freeman
270 68 John Freeman
you'll see a history of the commits made to the repository. In order to commit the directory, a couple of steps need to be taken:
271 68 John Freeman
* From /data/lbnedaq/config/, run <pre>git add <named_configuration></pre>. This will "stage" the directory to be committed. Running <pre>git status</pre> should show you something like the following:
272 68 John Freeman
273 68 John Freeman
# On branch master
274 68 John Freeman
# Changes to be committed:
275 68 John Freeman
#   (use "git reset HEAD <file>..." to unstage)
276 68 John Freeman
277 68 John Freeman
#	new file:   helloworld/Aggregator1.fcl
278 68 John Freeman
#	new file:   helloworld/Aggregator2.fcl
279 68 John Freeman
#	new file:   helloworld/component01_hw_cfg.fcl
280 68 John Freeman
#	new file:   helloworld/component02_hw_cfg.fcl
281 68 John Freeman
282 68 John Freeman
283 68 John Freeman
* Next, run <pre>git commit -m "<commit message>"</pre>. The commit message should be your three initials followed by a colon, the name of the configuration followed by a colon, and then a brief description of the new configuration, including its name, e.g.:
284 68 John Freeman
285 68 John Freeman
git commit -m "JCF: helloworld: This configuration does not exist in the actual repo, it's simply used for documentation purposes"
286 68 John Freeman
287 68 John Freeman
Be aware of rules governing strings delimited by double quotes in bash -- i.e., don't try double quoting a word or phrase inside of your commit description. 
288 68 John Freeman
289 68 John Freeman
Now, make sure that the commit took place correctly by running
290 68 John Freeman
291 68 John Freeman
git diff HEAD
292 68 John Freeman
293 68 John Freeman
If your commit is at the head of the master branch, you should see no output; additionally, if you run
294 1 John Freeman
295 68 John Freeman
git log
296 68 John Freeman
297 69 John Freeman
you should be able to see your commit at the top.
298 57 John Freeman
299 56 Erik Blaufuss
h1. Adding new DAQ Components to RunControl
300 49 Erik Blaufuss
301 49 Erik Blaufuss
The list of available DAQComponents (maps to BoardReader processes) is maintained by RunControl in the file:
302 49 Erik Blaufuss
303 49 Erik Blaufuss
304 18 John Freeman
305 55 Erik Blaufuss
Each entry (name: host port) defines:
306 55 Erik Blaufuss
* name - name of the component, maps to a <name>_hw_cfg.fcl in CfgMgr's configuration directory
307 49 Erik Blaufuss
* host - hostname where BoardReader process will be started
308 49 Erik Blaufuss
* port - XMLRPC port to be used, must be unique and used by other processes.
309 18 John Freeman
310 49 Erik Blaufuss
For example:
311 49 Erik Blaufuss
312 49 Erik Blaufuss
component01: lbnedaq2 5205
313 49 Erik Blaufuss
component02: lbnedaq2 5206
314 49 Erik Blaufuss
315 49 Erik Blaufuss
Has two components (component01 and component02) both running on lbnedaq2 on ports 5205 and 5206.
316 27 John Freeman
317 49 Erik Blaufuss
h1.  Troubleshooting and FAQ
318 28 John Freeman
319 49 Erik Blaufuss
h2.  Common RunControl issues
320 27 John Freeman
321 49 Erik Blaufuss
h3. How can I get a list of all RunControl commands?
322 1 John Freeman
323 49 Erik Blaufuss
324 49 Erik Blaufuss
lbnecmd help
325 49 Erik Blaufuss
326 50 Erik Blaufuss
will list all available commands for RunControl with some details for help.  
327 50 Erik Blaufuss
328 50 Erik Blaufuss
h3.  No real configurations are listed by RunControl
329 45 John Freeman
330 49 Erik Blaufuss
If you run "lbnecmd listconfigs" and see something like:
331 45 John Freeman
332 49 Erik Blaufuss
Available configs (Name : description)
333 49 Erik Blaufuss
334 49 Erik Blaufuss
dummy : Dummy description
335 45 John Freeman
336 49 Erik Blaufuss
Instead of your expected configurations, RunControl is not able to connect to CfgMgr.  Please make sure it's running (
337 1 John Freeman
338 49 Erik Blaufuss
h2.  Common DAQInterface issues
339 49 Erik Blaufuss
340 49 Erik Blaufuss
h3.  *Error handling*
341 49 Erik Blaufuss
342 49 Erik Blaufuss
As of this writing (11/14/14) certain potential problems have been anticipated and are handled within DAQInterface. These problems include:
343 49 Erik Blaufuss
# An artdaq process returns an error state after a transition request, or an exception is thrown by the XML-RPC library during the request
344 49 Erik Blaufuss
# During periodic checks, one or more artdaq processes expected to exist are not found
345 49 Erik Blaufuss
346 49 Erik Blaufuss
In either case, an error is reported via 0MQ to RunControl, and the "Recover" transition is automatically triggered. This transition is a fairly blunt instrument: it will kill any remaining artdaq processes and return DAQInterface to its original state of "stopped" (i.e., one in which it requires the "init" transition before anything else is done). 
347 49 Erik Blaufuss
348 49 Erik Blaufuss
h3. *Your change to docs/config.txt or doesn't seem to do anything*
349 49 Erik Blaufuss
350 1 John Freeman
Make sure you kill the existing daqinterface process and restart it
351 49 Erik Blaufuss
352 54 John Freeman
h3. *On the initial transition ("lbnecmd init daq"), you see "error: [Errno 111] Connection refused"*
353 49 Erik Blaufuss
354 1 John Freeman
If a "Recover" is triggered and you can see via "lbnecmd check" that DAQInterface is in the "stopped" state, try initializing again. If that doesn't work, you can try increasing the value of the "pause before initialization" variable in the docs/config.txt file. Empirically, it appears there needs to be a pause of at least 4 seconds on before the FHiCL documents can be successfully sent via XML-RPC to the processes; increasing this value may make it less likely that the "Connection refused" error occurs.
355 54 John Freeman
356 49 Erik Blaufuss
h3. *On the initial transition, you see a regularly updating printout saying "Waiting for all processes to be launched"*
357 49 Erik Blaufuss
358 1 John Freeman
Seeing one or two of these is fine. If, after several seconds, something like the following
359 1 John Freeman
360 1 John Freeman
Waiting for all processes to be launched; if zombie pmt.rb is running on localhost please kill it and this program (PID 31820)
361 1 John Freeman
362 1 John Freeman
keeps getting output to screen, it means there's a problem initializing. In this case, the current (11/12/14) course of action is to externally kill DAQInterface using the PID listed; also, it's possible that there may already be a pmt.rb executable running on the desired host, blocking the launch of a new one due to a port conflict, in which case you should log onto the host (assuming you're not already on it), and run 
363 1 John Freeman
364 1 John Freeman
ps aux | grep -v grep | grep pmt.rb 
365 1 John Freeman
366 51 John Freeman
to see if this is the case. If it's not and you can't think of what might be wrong (is the configuration manager running? have you double-checked docs/config.txt?), then try increasing the debug level in docs/config.txt for your next run-through, as this will likely shed light on the nature of the problem.