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We would like to upgrade the xrootd server version for the Fermi xrootd cluster from 20090202-1402 to 20090721-0636.
The main reasons for the change is an improvement in the xrootd server and a configuration change.:

1. Better handling of sendfile error recovery. In the old version some sendfile errors caused the server to disconnected disconnect the client. In the new version the server recovers from the sendfile errors and does not disconnect the client. Disconnecting the client is not fatal as after a timeout the client notices the disconnect and reconnects again to the server, but it will slow down the client.
2. Allow production accounts to remove certain directories , mainly (below /glast/Scratch/). This option is so far only available in So far this option has been available only for the test xrootd setup.

Testing

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The test xrootd has been setup for the directory removal (rmdir). It has been successfully used for some production
testing.

Rollback

To switch the servers back to the old version the production link has to be set to the old version and a restart of all xrootd servers is needed.

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