[yam]Metadata

Tom Eulenfeld tom.eulenfeld at uni-jena.de
Tue Aug 14 16:24:47 CEST 2018


Hi Blaz, I committed a more verbose exception.
You can try the dev version of Yam, e.g.

conda uninstall yam
pip install https://github.com/trichter/yam/archive/master.zip

Cheers,
Tom



On 14.08.2018 15:12, Tom Eulenfeld wrote:
> What would be he desired behavior? Print more information and raise an 
> exception. Or just log the exception and continue with the next 
> iteration. I tend to implement the first option.
> 
> But there is no hurry, because I found the --pdb option which I 
> implemented (but forgot about).
> You can find out the time yourself by starting
> 
> yam --pdb correlate -n1 1
> 
> and then inspect stream1[0].id and stream1[0].stats.endtime
> (or stream2[0].id and stream2[0].stats.endtime)
> when the error occurs.
> 
> When I think more about it, it might be a problem that I used the 
> endtime and not some time between starttime and endtime. (still assuming 
> there is some kind of gap in the inventory)
> 
> Cheers,
> Tom
> 
> 
> 
> On 14.08.2018 13:11, Blaž Vičič wrote:
>> I doubt this is the problem of inventory... The miniseeds were 
>> pre-procesed and I removed the response using obspy for all the files 
>> then used them as an input to yam. staxml files in yam are the same i 
>> used for the removal.
>>
>> thanks
>>
>> On Tue, 14 Aug 2018 at 12:36 Tom Eulenfeld <tom.eulenfeld at uni-jena.de 
>> <mailto:tom.eulenfeld at uni-jena.de>> wrote:
>>
>>     Hi Blaz,
>>
>>     if the metadata in the miniseed is correct, maybe it is a problem 
>> with
>>     the inventory information? There could be a gap inside the inventory
>>     when the station was moved or maintained? Could also be a bug in 
>> obspy.
>>
>>     I will add some code to catch the exception and display a more
>>     meaningful log message.
>>
>>     Cheers,
>>     Tom
>>
>>
>>
>>     On 14.08.2018 07:30, Blaž Vičič wrote:
>>      > Hello again.
>>      > Another day, another problem.
>>      >
>>      > I am trying to process few years of data for a set of stations. I
>>      > already removed the instrumental response and downsampled the
>>     data. The
>>      > error I get is this one:
>>      >
>>      > (obspy) pb-vicic:proc_2 bvicic$ yam correlate 1
>>      >
>>      >
>>     
>> 78%|██████████████████████████████████████████████████████████████████████████████████████████▊ 
>>
>>
>>      > | 2572/3287
>>     [5:37:02<1:33:41,7.86s/it]multiprocessing.pool.RemoteTraceback:
>>      >
>>      > """
>>      >
>>      > Traceback (most recent call last):
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/multiprocessing/pool.py", 
>>
>>
>>      > line 119, in worker
>>      >
>>      > result = (True, func(*args, **kwds))
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/correlate.py", 
>>
>>
>>      > line 569, in correlate
>>      >
>>      > stream2[0].id, datetime=stream2[0].stats.endtime)
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/obspy/core/inventory/inventory.py", 
>>
>>
>>      > line 430, in get_coordinates
>>      >
>>      > metadata = self.get_channel_metadata(seed_id, datetime)
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/obspy/core/inventory/inventory.py", 
>>
>>
>>      > line 406, in get_channel_metadata
>>      >
>>      > raise Exception(msg)
>>      >
>>      > Exception: No matching channel metadata found.
>>      >
>>      > """
>>      >
>>      >
>>      > The above exception was the direct cause of the following 
>> exception:
>>      >
>>      >
>>      > Traceback (most recent call last):
>>      >
>>      > File "/Users/bvicic/anaconda3/envs/obspy/bin/yam", line 11, in
>>     <module>
>>      >
>>      > sys.exit(run_cmdline())
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/main.py", 
>>
>>
>>      > line 388, in run_cmdline
>>      >
>>      > run(**args)
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/main.py", 
>>
>>
>>      > line 147, in run
>>      >
>>      > run2(command, **args)
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/main.py", 
>>
>>
>>      > line 211, in run2
>>      >
>>      > yam.commands.start_correlate(io, **args)
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/commands.py", 
>>
>>
>>      > line 101, in start_correlate
>>      >
>>      > total=len(tasks)):
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/tqdm/_tqdm.py", 
>>
>>
>>      > line 930, in __iter__
>>      >
>>      > for obj in iterable:
>>      >
>>      > File
>>      >
>>     
>> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/multiprocessing/pool.py", 
>>
>>
>>      > line 735, in next
>>      >
>>      > raise value
>>      >
>>      > Exception: No matching channel metadata found.
>>      >
>>      >
>>      > In the first run I did, the error happened somewhere at the
>>     beginning
>>      > (iteration 200/3000+) so I checked if maybe my miniseeds have 
>> wrong
>>      > sta/chan inside. But they are all what they should be. I even
>>     forced the
>>      > tr.stats.station/chan to be exactly what I wanted. But the error
>>      > happened again. So I removed the first year of data, but now the
>>     error
>>      > happened again somewhere later in the dataset. Any idea what
>>     could be
>>      > wrong or how to go past this? It would be useful if I would 
>> know in
>>      > which miniseeds to look for the problem.
>>      >
>>      > Cheers
>>      > Blaz
>>      >
>>      >
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