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Former Member
Dec 18, 2007 at 12:19 PM

TREX preprocessing failed, HTTP Status Code 401

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Hello everybody!

I'm using SAP NetWeaver 7.0 (2004s), TREX 7.0 on Win2003 Server.

I'm trying to index files, but it doesn't work for files bigger than 10KB. I know that for these documents > 10KB only the URI is transmitted to TREX. So it seems the problem is based on the communication between TREX and portal.

Error messages:

TREX monitor: preprocessing failed, error number: 6401, error message: HTTP Status Code 401: Unauthorized

Indexmonitor: Trex: Preparation failed: index operation

- all TREX server status icons are green.

- I'm not using any SSL communication.

- indexing doesn't work for any data sources, neither web repositories nor KM content.

- I've checked the host and alternative host parameter in the URL generator service (both http://<myservername>:50100).

- I am able to access the URL of the resource directly.

- I've added the "unescape_url=no" entry in the TREXPreprocessor.ini like SAP Note 650521 says.

- my system ID is properly set.

- the password of user index_service does not expire.

Does anybody have any further ideas?

Many thanks in advance

Steffi, working on it for days...