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I have strange results comparing node information outputs between getinfo() and listchannels() calls. Maybe someone has thoughts what is wrong (with my trivial code or with c-lightning itself):

chans = lnd.listchannels(source=mychan)['channels']
for chan in chans:
    if chan['active'] == False:
        total_inactive += 1
        print('inactive chan with node: ' + chan['destination'])
    else:
        total_active += 1

print('my inactive chans: ' + str(total_inactive))
print('my active chans: ' + str(total_active))

gives me:

my inactive chans: 2 
my active chans: 23

But, lightning-cli getinfo gives:

"num_active_channels": 25,
"num_inactive_channels": 5,
  • waited for 10+ hours.. now things become even more strange. while upgrading the node there was an event when i launched backuped node copy, so many of my channels closed for some reason (perhaps channels closed because other nodes refused old data). anyway, tried again to launch script and getinfo: getinfo: "num_active_channels" : 5, "num_inactive_channels" : 25 while script output: my inactive chans: 3 my active chans: 2 wierd.. but i think this is due to slow state refreshing in LN. will close manually 'inactive' channels i see on cli and then ill reply about results – baysx Apr 29 at 10:22
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It would appear that you have (or rather had them at the time you ran the commands) 6 channels that were funded, but not yet announced. This is most likely why your node sees them (getinfo) but gossipd doesn't yet (listchannels) since they haven't been announced just yet.

  • Nvm previous comment its misleading and has nothing to do with question. But should i use listchannels() to get more descriptive info about inactive channels mentioned in getinfo()? – baysx Apr 29 at 13:09
  • They are two separate sources of information, so we'd need to reconcile the differences. Might be worth doing at some point, but likely a low priority task currently. – cdecker Apr 29 at 13:17
0

as Rene Pickhardt pointed me:

without context I studiert you installed the pylifhtning client via pip and upgraded you lightning node later so that the APIs have different versions. But that is only a wild guess for a common error

  • To my defense when I was approached with the question I only knew that the output differed. I did not know how and pointed also out that my replay was a rough / blind guess – Rene Pickhardt Apr 29 at 6:42
  • anyway, this was a good point. i really had different versions of api and cli and your suggestion makes sense to prevent futher glitches! – baysx Apr 29 at 8:15
  • Yeah but as Cdecker wrote you make a different api call in your python script in comparison to the cli call – Rene Pickhardt Apr 29 at 12:05
  • Emmm.. i didnt get it first, i understood thad different software subprocesses are acting in different ways, but soon or late ill get same result. In general i would like exactly to compare the data which gives listfunds and getinfo. I used api simply to not count inactive channels manually, but the idea was to found detailed information about inactive channels that getinfo() outputs. I thought listchannels() is exactly what i need for this – baysx Apr 29 at 12:26
  • My question title is misleading, it should be: why listfunds() and getinfo() shows me different stats. Regardless of api/cli – baysx Apr 29 at 12:49

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