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  1. Jenkins
  2. JENKINS-59735

Tee step intermittently truncates output

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      Description

      We have a pipeline with code along the lines of

      tee('output.log') {
        sh 'terraform plan'
      }
      

      and we've noticed that output.log is occasionally truncated (the end of the file has a predictable pattern, so we alert on when it's missing), while stdout, as shown in the Jenkins console log, is not truncated.

      We've seen this happen even when output.log was not a large file (just a few kilobytes). It seems to happen the most when there's a lot of build congestion (many jobs running concurrently). It doesn't happen often and we haven't found a way to reproduce the issue at will.

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            Assignee:
            rsandell rsandell
            Reporter:
            jonathanb1 Jonathan B
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              Created:
              Updated: