Can't resolve hostname '(host-name)' host not found

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Contents 1 General 2 Version Information 2.1 Alternate Message Formats 3 Example Log(s) 3.1 Can't Resolve Hostname - Host Not Found 3.1.1 Line-By-Line Explanation 3.2 Can't Resolve Hostname - Host Not Found or Server Failure 3.2.1 Line-By-Line Explanation 4 Other Related Messages 5 Also See

[edit] General

Message Type: Warning Message

This Message means that the BOINC Client Software attempted to contact a Project Server and was unable to make the connection because the Host (server) was not found. The Host Name did get converted into an IP Address, but the Host itself could not be located. Often these messages are indicative of a temporary failure, particular if the host / device was functioning properly and no changes were made, at all, and the internet connection otherwise functions properly.

[edit] Version Information

[edit] Alternate Message Formats

• Can't resolve hostname '(host-name)' (host name not found)
• Can't resolve hostname '(host-name)' (host not found)
• Can't resolve hostname '(host-name)' (host not found or server failure)
• Can't resolve hostname ['(host-name)'] (host name not found)
• Can't resolve hostname ['(host-name)'] (host not found)
• Can't resolve hostname ['(host-name)'] (host not found or server failure)
• Can't resolve hostname ['(host-name)'] host name not found
• Can't resolve hostname ['(host-name)'] host not found
• Can't resolve hostname ['(host-name)'] host not found or server failure
• Temporarily failed upload of .....: can't resolve hostname

[edit] Example Log(s)

[edit] Can't Resolve Hostname - Host Not Found

Note:

In this log example, I tried to attach to a Project with a "bogus" URL, just to make this set of messages ... but this is still the error you would get regardless of the reason that the URL is bad.

2005-06-03 02:51:27 [                              ] Can't resolve hostname [climateprediction.net1]
                                                     host not found
2005-06-03 02:51:27 [http://climateprediction.net1/] Couldn't read master page for          
                                                     http://climateprediction.net1/: 
                                                     error -113
2005-06-03 02:51:27 [http://climateprediction.net1/] Detaching from project - check for URL error
                                                     BOINC couldn't get main page for 
                                                     http://climateprediction.net1/.
                                                     Please check the URL and try again.
2005-06-03 02:51:27 [http://climateprediction.net1/] Resetting project
2005-06-03 02:51:27 [http://climateprediction.net1/] Detaching from project

Line-By-Line Explanation

• Can't resolve hostname ['(host-name)'] host name not found

The "host-name" used is in error, usually caused by incorrect typing or copying of the URL when "Attaching" the BOINC Client Software to a BOINC Powered Project.

• Couldn't read master page for '(project identifier)': error '(error-code)'

Because the Project's Master URL was wrong, the Project's Master Page could not be read.

• BOINC couldn't get main page for '(url)'

Please check the URL and try again.

The BOINC Client Software is offering a hint as to the problem.

• Resetting project
• Detaching from project

And, because of that, we have to "Detach" From The Project, which includes a Project "Reset".

[edit] Can't Resolve Hostname - Host Not Found or Server Failure

2004-08-18 04:45:01 [---] Can't resolve hostname climateapps2.oucs.ox.ac.uk 
                          (host not found or server failure)
2004-08-18 04:45:01 [climateprediction.net] scheduler init_op_project to
                                            http://climateapps2.oucs.ox.ac.uk/cpdnboinc_cgi/cgi
                                            failed, error -113
2004-08-18 04:45:01 [climateprediction.net] Deferring communication with project for
                                            1 minutes and 0 seconds

Line-By-Line Explanation

• Can't resolve hostname '(host-name)' (host not found or server failure)

The error indicating that the Host is among the missing.

• scheduler init_op_project to '(scheduler-url)' failed, error '(error-code)'

This message indicates the exact stage when the error occurred during the communication process with the Project's Scheduler.

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

This message indicates that we will use Exponential Back-Off to calculate a time interval to wait before attempting to make another try to upload the file to the Project's Scheduling Server.

[edit] Other Related Messages

• Can't resolve hostname ['(host-name)'] (a blocking socket call in progress) (Microsoft Windows® Only)
• Can't resolve hostname ['(host-name)'] (a blocking socket call was canceled) (Microsoft Windows® Only)
• Can't resolve hostname ['(host-name)'] (a nonrecoverable error occurred) (All)
• Can't resolve hostname ['(host-name)'] (host not found)
• Can't resolve hostname ['(host-name)'] (host not found or server failure) (Non-Windows)
• Can't resolve hostname ['(host-name)'] (invalid part of user address space) (Microsoft Windows® Only)
• Can't resolve hostname ['(host-name)'] (no response from server) (Microsoft Windows® Only)
• Can't resolve hostname ['(host-name)'] (the network subsystem has failed) (Microsoft Windows® Only)
• Can't resolve hostname ['(host-name)'] (valid name, no data record of requested type) (All)
• Can't resolve hostname ['(host-name)'] host name not found
• Can't resolve hostname ['(host-name)'] host not found
• Can't resolve hostname ['(host-name)'] valid name, no data record of requested type (All)

[edit] Also See

• Error Code