[gpfsug-discuss] What is this error message telling me?

[Buterbaugh, Kevin L]

Hi All,

2018-09-27_09:48:50.923-0500: [E] The TCP connection to IP address 1.2.3.4 some client <c0n509> (socket 442) state is unexpected: ca_state=1 unacked=3 rto=27008000

Seeing errors like the above and trying to track down the root cause.  I know that at last weeks’ GPFS User Group meeting at ORNL this very error message was discussed, but I don’t recall the details and the slides haven’t been posted to the website yet.  IIRC, the “rto” is significant …

I’ve Googled, but haven’t gotten any hits, nor have I found anything in the GPFS 4.2.2 Problem Determination Guide.

Thanks in advance…

—
Kevin Buterbaugh - Senior System Administrator
Vanderbilt University - Advanced Computing Center for Research and Education
Kevin.Buterbaugh at vanderbilt.edu<mailto:Kevin.Buterbaugh at vanderbilt.edu> - (615)875-9633



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