Running DAQ Interface » History » Version 66
John Freeman, 11/21/2014 11:14 AM
1 | 58 | John Freeman | {{toc}} |
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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 - jcfree@fnal.gov |
8 | 62 | John Freeman | * RunControl |
9 | 49 | Erik Blaufuss | ** Erik Blaufuss - blaufuss@icecube.umd.edu |
10 | 66 | John Freeman | * Configuration Manager |
11 | 66 | John Freeman | ** Jon Paley - jpaley@anl.gov |
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 lbne35t-gateway01.fnal.gov, using the lbnedaq account. If you need access to the lbnedaq@lbne35t-gateway01.fnal.gov 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 jcfree@fnal.gov, for more details. |
17 | 49 | Erik Blaufuss | |
18 | 66 | John Freeman | The installed code is located at lbne35t-gateway01.fnal.gov:/data/lbnedaq/scratch/DAQInterface/lbnerc. To get started, login and first setup the environment: |
19 | 49 | Erik Blaufuss | |
20 | 30 | John Freeman | <pre> |
21 | 33 | John Freeman | ssh lbnedaq@lbne35t-gateway01.fnal.gov |
22 | 1 | John Freeman | cd /data/lbnedaq/scratch/DAQInterface |
23 | 1 | John Freeman | source fireup |
24 | 1 | John Freeman | </pre> |
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 | <pre> |
29 | 49 | Erik Blaufuss | lbnecmd check |
30 | 1 | John Freeman | </pre> |
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 | <pre> |
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 | </pre> |
38 | 1 | John Freeman | |
39 | 49 | Erik Blaufuss | If RunControl is not running, you'll see something like: |
40 | 1 | John Freeman | <pre> |
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 | </pre> |
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 | <pre> |
48 | 61 | John Freeman | ps aux | grep -v grep | grep CfgMgrApp |
49 | 61 | John Freeman | </pre> |
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 | <pre> |
57 | 49 | Erik Blaufuss | rm /tmp/lbnecontrol.pid |
58 | 49 | Erik Blaufuss | lbnecmd launch |
59 | 49 | Erik Blaufuss | </pre> |
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 | <pre> |
65 | 61 | John Freeman | daqinterface -n daqint -r 5570 -c localhost -H localhost & |
66 | 61 | John Freeman | </pre> |
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 | <pre> |
69 | 49 | Erik Blaufuss | stdbuf -oL daqinterface -n daqint -r 5570 -c localhost -H localhost >>~/DI.log 2>&1 & |
70 | 1 | John Freeman | </pre> |
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: https://cdcvs.fnal.gov/redmine/projects/fhicl_cfgmgr/wiki |
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 | <pre> |
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 | </pre> |
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 | <pre> |
88 | 49 | Erik Blaufuss | kill <PID> |
89 | 1 | John Freeman | </pre> |
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 | <pre> |
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 | </pre> |
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 | <pre> |
107 | 49 | Erik Blaufuss | lbnecmd listconfigs |
108 | 1 | John Freeman | </pre> |
109 | 49 | Erik Blaufuss | Will return a list of configs: |
110 | 49 | Erik Blaufuss | <pre> |
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 | </pre> |
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 | <pre> |
121 | 49 | Erik Blaufuss | lbnecmd setconfig demo |
122 | 1 | John Freeman | </pre> |
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 | <pre> |
133 | 1 | John Freeman | lbnecmd listdaqcomps |
134 | 49 | Erik Blaufuss | </pre> |
135 | 62 | John Freeman | Will return a list of components available and selected (*Default* is ALL available components), e.g.: |
136 | 1 | John Freeman | <pre> |
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 | </pre> |
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 | <pre> |
142 | 49 | Erik Blaufuss | lbnecmd setdaqcomps component01 component02 |
143 | 49 | Erik Blaufuss | </pre> |
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 | <pre> |
151 | 49 | Erik Blaufuss | lbnecmd check |
152 | 1 | John Freeman | </pre> |
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 | <pre> |
157 | 1 | John Freeman | lbnecmd init daq |
158 | 1 | John Freeman | </pre> |
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 | <pre> |
162 | 1 | John Freeman | lbnecmd start daq |
163 | 29 | John Freeman | </pre> |
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 | <pre> |
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 | </pre> |
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 | <pre> |
176 | 21 | John Freeman | lbnecmd pause daq |
177 | 42 | John Freeman | </pre> |
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 | <pre> |
181 | 48 | John Freeman | lbnecmd resume daq |
182 | 48 | John Freeman | </pre> |
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 | <pre> |
186 | 48 | John Freeman | lbnecmd stop daq |
187 | 49 | Erik Blaufuss | </pre> |
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 | <pre> |
192 | 1 | John Freeman | lbnecmd terminate daq |
193 | 1 | John Freeman | </pre> |
194 | 1 | John Freeman | |
195 | 49 | Erik Blaufuss | h2. After your DAQ run. |
196 | 1 | John Freeman | |
197 | 49 | Erik Blaufuss | Once you've completed your run, there are a few things you can look at. |
198 | 48 | John Freeman | |
199 | 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/. |
200 | 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. |
201 | 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. |
202 | 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. |
203 | 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. |
204 | 1 | John Freeman | |
205 | 49 | Erik Blaufuss | h1. Configuring DAQInterface |
206 | 49 | Erik Blaufuss | |
207 | 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). |
208 | 49 | Erik Blaufuss | It should look something like the following: |
209 | 1 | John Freeman | <pre> |
210 | 49 | Erik Blaufuss | lbne-artdaq: /data/lbnedaq/scratch/DAQInterface/build_lbne-artdaq |
211 | 1 | John Freeman | |
212 | 49 | Erik Blaufuss | PMT host: lbnedaq3 |
213 | 49 | Erik Blaufuss | |
214 | 49 | Erik Blaufuss | pause before initialization: 5 |
215 | 49 | Erik Blaufuss | |
216 | 49 | Erik Blaufuss | # debug level can range from 0 to 3 (increasing order of verbosity) |
217 | 49 | Erik Blaufuss | debug level: 1 |
218 | 49 | Erik Blaufuss | |
219 | 49 | Erik Blaufuss | log directory: /data/lbnedaq/daqlogs |
220 | 49 | Erik Blaufuss | |
221 | 49 | Erik Blaufuss | record directory: /data/lbnedaq/scratch/jcfree/TemporarySaveArea/ |
222 | 49 | Erik Blaufuss | |
223 | 1 | John Freeman | EventBuilder host: lbnedaq2 |
224 | 48 | John Freeman | EventBuilder port: 5235 |
225 | 48 | John Freeman | EventBuilder fhicl: /data/lbnedaq/fcl/EventBuilder_demo1.fcl |
226 | 48 | John Freeman | |
227 | 48 | John Freeman | EventBuilder host: lbnedaq2 |
228 | 48 | John Freeman | EventBuilder port: 5236 |
229 | 48 | John Freeman | EventBuilder fhicl: /data/lbnedaq/fcl/EventBuilder_demo2.fcl |
230 | 48 | John Freeman | |
231 | 48 | John Freeman | Aggregator host: lbnedaq2 |
232 | 48 | John Freeman | Aggregator port: 5265 |
233 | 41 | John Freeman | |
234 | 1 | John Freeman | Aggregator host: lbnedaq2 |
235 | 21 | John Freeman | Aggregator port: 5266 |
236 | 49 | Erik Blaufuss | </pre> |
237 | 1 | John Freeman | |
238 | 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). |
239 | 49 | Erik Blaufuss | |
240 | 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. |
241 | 49 | Erik Blaufuss | |
242 | 57 | John Freeman | h1. Adding new configurations to RunControl |
243 | 57 | John Freeman | |
244 | 57 | John Freeman | Adding a new configuration selectable from RunControl is quite simple. As of 11/20/14, the FHiCL documents associated with a given configuration are stored within the directory |
245 | 57 | John Freeman | <pre> |
246 | 57 | John Freeman | /data/lbnedaq/config/<named_configuration> |
247 | 57 | John Freeman | </pre> |
248 | 57 | John Freeman | where "named_configuration" would be the name of the configuration, in this example. Within this directory, the following files are expected: |
249 | 57 | John Freeman | * Aggregator1.fcl and Aggregator2.fcl, used to initialize the two AggregatorMain processes in the DAQ system |
250 | 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") |
251 | 57 | John Freeman | |
252 | 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. |
253 | 59 | John Freeman | <pre> |
254 | 59 | John Freeman | event_builder_count: PLACEHOLDER |
255 | 59 | John Freeman | </pre> |
256 | 59 | 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. |
257 | 57 | John Freeman | |
258 | 57 | John Freeman | |
259 | 56 | Erik Blaufuss | h1. Adding new DAQ Components to RunControl |
260 | 49 | Erik Blaufuss | |
261 | 49 | Erik Blaufuss | The list of available DAQComponents (maps to BoardReader processes) is maintained by RunControl in the file: |
262 | 49 | Erik Blaufuss | <pre> |
263 | 49 | Erik Blaufuss | /home/lbnedaq/.lbnerc-components |
264 | 18 | John Freeman | </pre> |
265 | 55 | Erik Blaufuss | Each entry (name: host port) defines: |
266 | 55 | Erik Blaufuss | * name - name of the component, maps to a <name>_hw_cfg.fcl in CfgMgr's configuration directory |
267 | 49 | Erik Blaufuss | * host - hostname where BoardReader process will be started |
268 | 49 | Erik Blaufuss | * port - XMLRPC port to be used, must be unique and used by other processes. |
269 | 18 | John Freeman | |
270 | 49 | Erik Blaufuss | For example: |
271 | 49 | Erik Blaufuss | <pre> |
272 | 49 | Erik Blaufuss | component01: lbnedaq2 5205 |
273 | 49 | Erik Blaufuss | component02: lbnedaq2 5206 |
274 | 49 | Erik Blaufuss | </pre> |
275 | 49 | Erik Blaufuss | Has two components (component01 and component02) both running on lbnedaq2 on ports 5205 and 5206. |
276 | 27 | John Freeman | |
277 | 49 | Erik Blaufuss | h1. Troubleshooting and FAQ |
278 | 28 | John Freeman | |
279 | 49 | Erik Blaufuss | h2. Common RunControl issues |
280 | 27 | John Freeman | |
281 | 49 | Erik Blaufuss | h3. How can I get a list of all RunControl commands? |
282 | 1 | John Freeman | |
283 | 49 | Erik Blaufuss | <pre> |
284 | 49 | Erik Blaufuss | lbnecmd help |
285 | 49 | Erik Blaufuss | </pre> |
286 | 50 | Erik Blaufuss | will list all available commands for RunControl with some details for help. |
287 | 50 | Erik Blaufuss | |
288 | 50 | Erik Blaufuss | h3. No real configurations are listed by RunControl |
289 | 45 | John Freeman | |
290 | 49 | Erik Blaufuss | If you run "lbnecmd listconfigs" and see something like: |
291 | 45 | John Freeman | <pre> |
292 | 49 | Erik Blaufuss | Available configs (Name : description) |
293 | 49 | Erik Blaufuss | |
294 | 49 | Erik Blaufuss | dummy : Dummy description |
295 | 45 | John Freeman | </pre> |
296 | 49 | Erik Blaufuss | Instead of your expected configurations, RunControl is not able to connect to CfgMgr. Please make sure it's running (https://cdcvs.fnal.gov/redmine/projects/fhicl_cfgmgr/wiki/Wiki) |
297 | 1 | John Freeman | |
298 | 49 | Erik Blaufuss | h2. Common DAQInterface issues |
299 | 49 | Erik Blaufuss | |
300 | 49 | Erik Blaufuss | h3. *Error handling* |
301 | 49 | Erik Blaufuss | |
302 | 49 | Erik Blaufuss | As of this writing (11/14/14) certain potential problems have been anticipated and are handled within DAQInterface. These problems include: |
303 | 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 |
304 | 49 | Erik Blaufuss | # During periodic checks, one or more artdaq processes expected to exist are not found |
305 | 49 | Erik Blaufuss | |
306 | 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). |
307 | 49 | Erik Blaufuss | |
308 | 49 | Erik Blaufuss | h3. *Your change to docs/config.txt or daqinterface.py doesn't seem to do anything* |
309 | 49 | Erik Blaufuss | |
310 | 1 | John Freeman | Make sure you kill the existing daqinterface process and restart it |
311 | 49 | Erik Blaufuss | |
312 | 54 | John Freeman | h3. *On the initial transition ("lbnecmd init daq"), you see "error: [Errno 111] Connection refused"* |
313 | 49 | Erik Blaufuss | |
314 | 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 lbnedaqtest01.fnal.gov 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. |
315 | 54 | John Freeman | |
316 | 49 | Erik Blaufuss | h3. *On the initial transition, you see a regularly updating printout saying "Waiting for all processes to be launched"* |
317 | 49 | Erik Blaufuss | |
318 | 1 | John Freeman | Seeing one or two of these is fine. If, after several seconds, something like the following |
319 | 1 | John Freeman | <pre> |
320 | 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) |
321 | 1 | John Freeman | </pre> |
322 | 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 |
323 | 1 | John Freeman | <pre> |
324 | 1 | John Freeman | ps aux | grep -v grep | grep pmt.rb |
325 | 1 | John Freeman | </pre> |
326 | 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. |