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Editorial Team
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Asked: 2026-05-18T12:15:46+00:00

I have a web app that spawns off a script that runs a Nutch

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I have a web app that spawns off a script that runs a Nutch crawl. It’s all working really well, except now my client wants it running on a Windows PC. The Windows PC she gave me is running Windows 7 Home Premium.

I’ve got nearly everything running, except when the crawl script – when it fires off nutch, nutch (which runs Hadoop, which for some bizarre reason does a whoami) fails because whoami returns “nt authority\system” instead of a single string. The error:

javax.security.auth.login.LoginException:
Login failed: Expect one token as the
result of whoami: nt authority\system

Is there some way to change the name that whoami returns in that case?

Update: Just to clarify, the exact same script runs fine when I run it from the command line. The problem is that Tomcat runs as a service, so the script it spawns is running as this “nt authority\system” user, which is what is confusing hadoop because it evidently expects whoami to return a single word, not two words separated by a space.

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1 Answer

  1. Editorial Team

    The problem is that Tomcat runs as a service, so the script it spawns is running as this “nt authority\system” user, which is what is confusing hadoop because it evidently expects whoami to return a single word, not two words separated by a space.

    Then change the account. Start > Run > services.msc, doubleclick the Tomcat service, open Log On tab and set the account there.

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