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Dear all,

   I have a colleague that from time to time sees these errors. Any idea how to help debug
this problem.

Hi,

    Running root jobs that read ntuples stored in xrootd, the error
messages below appear from time to time. I am not sure how to interpret
the severity of those messages. Do they mean that files are being
skipped or that the error is transient or was recovered?

Stephane.

120117 12:06:52 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:06:52 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:07:22 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:07:22 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:08:23 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:08:52 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:09:22 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:09:52 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:09:52 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:10:22 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:10:23 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:10:52 30658 Xrd: XrdClientMessage::ReadRaw: Failed to read
header (8 bytes).
120117 12:21:39 001 Xrd: GoToAnotherServer: Going to: titan19:1094
120117 12:21:39 001 Xrd: CheckErrorStatus: Server [titan:1094] declared:
session not found(error
code: 3011)
120117 12:21:58 001 Xrd: GoToAnotherServer: Going to: titan25:1094
120117 12:21:58 001 Xrd: CheckErrorStatus: Server [titan:1094] declared:
session not found(error
code: 3011)
120117 12:22:12 001 Xrd: GoToAnotherServer: Going to: titan12:1094
120117 12:22:12 001 Xrd: CheckErrorStatus: Server [titan:1094] declared:
session not found(error
code: 3011)
120117 12:22:33 001 Xrd: GoToAnotherServer: Going to: titan26:1094
120117 12:22:33 001 Xrd: CheckErrorStatus: Server [titan:1094] declared:
session not found(error
code: 3011)
120117 12:22:46 001 Xrd: GoToAnotherServer: Going to: titan15:1094
120117 12:22:46 001 Xrd: CheckErrorStatus: Server [titan:1094] declared:
session not found(error
code: 3011)

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