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First draft

Reason for change

The current production version is 20071101-0808p2. We would like to install the new production candidate version 20080513-1222.

Reason for change

The new xrootd version allows to restrict the access to the GLAST data which is required. The current production version does not support access control. The new xrootd version has various improvements and fixes that make the system more reliable.

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All other test were done against the test version new version 20080410-0747 and repeated for production candidate version 20080513-1222 on the glast xrootd cluster:

The main tests were:

  • running the crawler
  • Crawler tests ?
  • A MC-simulation was run successfully against the 20080410-0747skimmer jobs run successfully
  • skimmer jobs
  • reading and writing with xrdcp
  • reading from xrootd with root version 5.18.00(b)

The test that required the xrootd client tools (xrdcp to transfer files, xrd.pl to stat,checksum and remove
files) were done with using client tools from the new version.

Rollback

It is possible to re-activate the old xrootd version now data will be lost.

CCB Jira

SSC-43@JIRA

Details

Deploying the new xrootd version requires to restart the new version on all glast xrootd servers, including the
redirector (glast-rdr). In addition the client admin tools have to be updated as the current version does not support authorization.
The steps would be the following:

  1. Install new client admin tools:

The restart of xrootd
The activation of the new version will be done the following way:

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