Couldn't start download of scheduler list: '(error-text)'

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Contents 1 General 2 Version Information 3 Example Log(s) 3.1 Couldn't Start Master Page Download (-107) 3.1.1 Line-By-Line Explanation 3.2 Couldn't Start Master Page Download (-113) 3.2.1 Line-By-Line Explanation 4 Other Related Messages 5 Also See 6 Developer Information

[edit] General

Message Type: Warning Message

This Message means that the BOINC Client Software was not able to start a communication session with the Project because it was unable to obtain the most up-to-date copy of the Project's Scheduler List (formerly known as the "Project's Master Page").

[edit] Version Information

• Couldn't start master file download: '(error-code)'
• Couldn't start master file download: '(error-text)'
• Couldn't start master page download: '(error-code)'

Obsolete in Version 4.72, new version converts Error Code into a text string.

• Couldn't start master page download: '(error-text)'

Changed: 2005-12-05

[edit] Example Log(s)

[edit] Couldn't Start Master Page Download (-107)

2005-06-27 01:11:16 [LHC@home alpha] Couldn't start master page download: -107
2005-06-27 01:11:16 [LHC@home alpha] Master page fetch failed
2005-06-27 01:11:16 [LHC@home alpha] Deferring communication with project for 1 minutes and 0 seconds

Line-By-Line Explanation

• Couldn't start master page download: '(error-code)'

Unable to download the Master Page.

• Master page fetch failed

Causing a "Master Page Fetch Error", because the Project's Web Site was not available.

• Deferring communication with project for "x" hours, "y" minutes, and "z" seconds

So now we will use Exponential Back-Off to calculate a time interval to wait before attempting to make another try to contact the Project's Scheduling Server.

[edit] Couldn't Start Master Page Download (-113)

2005-06-29 04:35:12 [              ] Can't resolve hostname [lhcathome-alpha.cern.ch] valid name,
                                     no data record of requested type
2005-06-29 04:35:12 [LHC@home alpha] Couldn't start master page download: -113
2005-06-29 04:35:12 [LHC@home alpha] Master page fetch failed
2005-06-29 04:35:12 [LHC@home alpha] Deferring communication with project for 1 minutes and 0 seconds

Line-By-Line Explanation

• Can't resolve hostname ['(host-name)'] (valid name, no data record of requested type)

And fail to make the connection because the BOINC Client Software cannot find a translation of the URL into an IP Address.

• Couldn't start master page download: '(error-code)'

Unable to download the Master Page.

• Master page fetch failed

Causing a "Master Page Fetch Error", because the Project's Web Site was not available.

• Deferring communication with project for "x" hours, "y" minutes, and "z" seconds

So now we will use Exponential Back-Off to calculate a time interval to wait before attempting to make another try to contact the Project's Scheduling Server.

[edit] Other Related Messages

• Can't open master file
• Couldn't read master page for '(project identifier)': error '(error-code)'
• Couldn't start download of scheduler list: '(error-text)'
  • Obsolete: Couldn't start master page download: '(error-code)'
  • Obsolete: Couldn't start master page download: '(error-text)'
• Fetching scheduler list
  • Obsolete: Fetching master file
  • Obsolete: Fetching master page
• Scheduler list fetch failed
  • Obsolete: Master file fetch failed
  • Obsolete: Master page fetch failed
• Master file parse failed
• Master page download succeeded
• Master page has no schedulers
• Scheduler op: init_master_fetch failed.
• Too many backoffs - fetching master file

[edit] Also See

• Error Code

[edit] Developer Information

Code Location:	boinc/client/scheduler_op.C
Function:	SCHEDULER_OP::check_master_fetch_start()
Documentation:	boinc/client/scheduler_op.C
CVS Extract:	cvs -d :pserver:anonymous:@alien.ssl.berkeley.edu:/home/cvs/cvsroot checkout boinc/client/scheduler_op.C