slink2ew modules dying

[Victor Preatoni]

Hi,

I've recently updated to latest EW version, and slink2ew modules are dying very often.

I raised a bug report in gitlab, if any developer can please take a look:

https://gitlab.com/seismic-software/earthworm/-/issues/326

I think may be related to latest commit: "Make all mseed functions return 0 if successful".

Over telemetry networks, unstable connections is a daily issue. IMHO, slink2ew should be rough enough to handle poor connections.

This is a log example when module dies:

-------------------------------------------------------
slink2ew_DOM: startup at UTC_20250927_21:54:59
This program is using the MT-Safe version of logit.
-------------------------------------------------------
20250927_UTC_21:54:59 LoadTableEnvVariable(): nfiles 2
20250927_UTC_21:54:59 slink2ew(MOD_SLINK2EW_DOM): Read command file <in/slink2ew_DOM.d>
20250927_UTC_21:54:59 slink2ew version 4.3 2025-02-07
20250927_UTC_21:55:32 error: [VV_DOM] timeout waiting for response to 'STATION DOM VV'
20250927_UTC_21:55:32 error: [10.20.30.40:18000] sl_collect(): negotiation with server failed
20250927_UTC_21:55:32 error: [10.20.30.40:18000] sl_recvdata(): -1: Socket operation on non-socket
20250927_UTC_21:55:32 slink2ew terminated

[Stefan Lisowski]

Thanks for the report, we'll investigate.

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[Victor Preatoni]

Thanks.

I tried to revert to previous slink2ew and keep the rest of the EW system up to date, but unfortunately I couldn't compile slink2ew module, as it seems it depends on older mseed libraries.

If anyone could guide me on how to revert only the slink2ew module, while keeping EW, appreciated.

[Paul Friberg]

Greetings Victor,

The easy way to do this is to grab the prior EW 7.10 version from http://www.earthwormcentral.org and compile it in a separate directory on the same machine, then simply copy the slink2ew that used Chad's old libmseed library (the V2 version) into the 8.0 bin directory over the one that comes with EW8.0. Should be easy enough to do and will work fine provided both are compiled with the same base libraries (which they will be).

Best regards,

Paul

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ISTI==Instrumental Software Technologies, Inc.
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