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SeisComP3 / seiscomp3

SeisComP is a seismological software for data acquisition, processing, distribution and interactive analysis.
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SeedLink fails to fetch data from some servers after restart #273

Closed KDFischer closed 3 years ago

KDFischer commented 3 years ago

Dear Seiscomp-Team,

the seedlink server coming with version seiscomp3-jakarta-2020.330 (I downloaded it from Gempa) fails to fetch data after running seiscomp restart seedlink from some servers / stations. I'm using the chain plugin to fetch the data from my stations or other 3rd-party servers. The failing servers run SeedLink v3.0 (2005.212). Servers running more recent versions didn't have this problem. To reproduce this problem I set up a minimal seiscomp3 environment in a virtual machine. There I configured 4 stations (GE.IBBN, GR.BUG, GR.KAST and GR.LUEB). The station GE.IBBN uses a seedlink binding with the chain plugin and the default server geofon.gfz-potsdam.de. The other 3 stations are getting data from www.szgrf.bgr.de. After running seiscomp restart seedlink no data is retrieved for the GR stations. I managed to re-enable fetching the data by running

seiscomp stop seedlink
rm ~/seiscomp3/var/run/seedlink/www.szgrf.bgr.de:18000.seq
seiscomp start seedlink

This will create a data gap for the GR stations. Attached are two log files for the two cases: seedlink_restart.log seedlink_rm-seq.log

Cheers,

Kasper

gempa-jabe commented 3 years ago

I have telneted to www.szgrf.bgr.de:18000 and the "info streams" command returns an error. Not sure if the installation works correctly.

gempa-jabe commented 3 years ago

I found the issue and fixed it. Actually a fix was missing after upgrading libslink. This fix is already in SeisComP >= 4. I committed already to the master branch.

KDFischer commented 3 years ago

Thanks for fixing this. I guess I have to compile seiscomp3 from source to test it?

gempa-jabe commented 3 years ago

You can also use a precompiled package from https://data.gempa.de/packages/Public/seiscomp3/jakarta-2020.330/.

KDFischer commented 3 years ago

Thank you! This resolved the issue in my test environment. 😄 👍