Friday, 30 November 2007

SSIS : The semaphore timeout period has expired

Semaphore? I thought that was men waving flags...

Some SSIS load packages failed this morning >

Error 121: "The semaphore timeout period has expired" (ERROR_SEM_TIMEOUT).

There is no one answer to this except to say that is a tcp/ip networking error.

Newsgroup posts on the issue range from antivirus software, network congestion and black hole routers. If anyone can be less vague, i'd love to hear your thoughts.

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