Mailing logs error: Este host não é conhecido.

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rccenteno
Posts: 60
Joined: 03 Dec 2021, 19:54

Mailing logs error: Este host não é conhecido.

Post by rccenteno »

Hi,
I have multiple backup jobs. All of them send the logs by email.
At various times the logs are not sent according to the error below:

2022-06-21 19:00:50 Deleting the Volume Shadow Copy image...
2022-06-21 19:00:51 The Volume Shadow Copy image has been successfully deleted.

2022-06-21 19:00:51 Mailing the log files...
2022-06-21 19:00:51 [DEBUG] Creating a temporary directory: "C:\Users\centeno\AppData\Local\Temp\000890db-5f2d-453d-be65-01d2c36719c4"
2022-06-21 19:00:51 Flushing the log to file. This can take some seconds. Wait...

2022-06-21 19:00:51 The backup has ended. There are errors. Consult the log file.

2022-06-21 19:01:01 [DEBUG] Compressing the log files to: "C:\Users\centeno\AppData\Local\Temp\Log files for Cobian Reflector.zip".
ERR 2022-06-21 19:01:12 An error occurred while sending the log files: Este host não é conhecido
2022-06-21 19:01:12 [DEBUG] Deleting the temporary directory that holds the log files: C:\Users\centeno\AppData\Local\Temp\000890db-5f2d-453d-be65-01d2c36719c4...
2022-06-21 19:01:12 [DEBUG] Deleting the compressed log files. Archive name: C:\Users\centeno\AppData\Local\Temp\Log files for Cobian Reflector.zip...


The strange thing is that this happens for some tasks and not for others within a few hours.

In some days everything happens normally and in all tasks.
The configured host is from GMAIL so there would be no instability problem or Internet outage here. I have stable links.

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cobian
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Re: Mailing logs error: Este host não é conhecido.

Post by cobian »

That's very strange indeed... Unless the error is being wrongly reported and the actual error is something else.
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Luis Cobian
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tisniwoar
Posts: 3
Joined: 14 Nov 2022, 09:21

Re: Mailing logs error: Este host não é conhecido.

Post by tisniwoar »

I'm having the same problem.
I run multiple tasks at night, but most of the time the last one to run experiences the error.

Sample extract of logging:


2022-11-14 02:59:13 Backing up the task "MP3"
2022-11-14 02:59:13 Applying the parameters to the task "MP3" (if any).
2022-11-14 02:59:13 Impersonating the user ".\marc"...
2022-11-14 02:59:13 The user .\marc is now logged in.
2022-11-14 02:59:13 The user .\marc has successfully been impersonated.
2022-11-14 02:59:13 Executing the pre-backup events...
2022-11-14 02:59:13 Pausing the working thread 30 second(s)...
2022-11-14 02:59:23 The log files have been successfully deleted.

2022-11-14 02:59:43 Resuming the working thread after the pause.
2022-11-14 02:59:43 The pre-backup events have been executed.
2022-11-14 02:59:43 Requesting the creation of a Volume Shadow Copy image for the source...
2022-11-14 03:00:00 The Volume Shadow Copy image has been successfully created.
2022-11-14 03:00:00 Starting the copy. The user running the task is: Marc
2022-11-14 03:00:00 Backing up the directory "G:\Gebruikers\Marc\Music\Mp3" to "\\HOMESERVER\Backup MUZIEK"...
2022-11-14 03:00:30 The archive attribute for "G:\Gebruikers\Marc\Music\Mp3" has been removed.
2022-11-14 03:00:30 The file attributes have been copied from "G:\Gebruikers\Marc\Music\Mp3" to "\\HOMESERVER\Backup MUZIEK".
2022-11-14 03:00:30 The timestamps have been copied from "G:\Gebruikers\Marc\Music\Mp3" to "\\HOMESERVER\Backup MUZIEK".
2022-11-14 03:00:30 The directory "G:\Gebruikers\Marc\Music\Mp3" has been backed up.

2022-11-14 03:00:30 * Backup part for the task "MP3" has ended *
2022-11-14 03:00:30 * Number of backed up files: 0. Backup part size: 0 bytes. *

2022-11-14 03:00:30 ** Backup for the task "MP3" has ended **
2022-11-14 03:00:30 ** Processed files: 3061. Backed up files: 0. Created folders: 0. Backup size: 0 bytes. **
2022-11-14 03:00:30 ** Number of errors: 0. Time elapsed: 0 hours, 1 minutes, 16 seconds. **

2022-11-14 03:00:30 Deleting the Volume Shadow Copy image...
2022-11-14 03:00:35 The Volume Shadow Copy image has been successfully deleted.
2022-11-14 03:00:35 The impersonation of .\marc has been reverted.
2022-11-14 03:00:35 The user .\marc has been logged off.

2022-11-14 03:00:35 Mailing the log files...
2022-11-14 03:00:35 Flushing the log to file. This can take some seconds. Wait...
2022-11-14 03:00:35 The computer can now enter sleep mode.

2022-11-14 03:00:35 The backup has ended without errors.

ERR 2022-11-14 03:00:45 An error occurred while sending the log files: Host is onbekend

Note: "Host is onbekend" means "unknown host"



The strange thing is, the email sent by the previous task ("Zonneke - Local disk") contains logging for the next task ("MP3") from the previous day! Maybe related to the fact that Cobian Reflector does not create individual log files for each task?

Content of the mail received for task "Zonneke - Local disk", the one preceding task "MP3":


This is an automatic mail message from Cobian Reflector. You will find the log files below this text.

Cobian Reflector 2022-11-13.txt

2022-11-13 02:58:53 The log files have been successfully deleted.

2022-11-13 02:59:12 Resuming the working thread after the pause.
2022-11-13 02:59:12 The pre-backup events have been executed.
2022-11-13 02:59:12 Requesting the creation of a Volume Shadow Copy image for the source...
2022-11-13 02:59:31 The Volume Shadow Copy image has been successfully created.
2022-11-13 02:59:31 Starting the copy. The user running the task is: Marc
2022-11-13 02:59:31 Backing up the directory "G:\Gebruikers\Marc\Music\Mp3" to "\\HOMESERVER\Backup MUZIEK"...
2022-11-13 02:59:59 The archive attribute for "G:\Gebruikers\Marc\Music\Mp3" has been removed.
2022-11-13 02:59:59 The file attributes have been copied from "G:\Gebruikers\Marc\Music\Mp3" to "\\HOMESERVER\Backup MUZIEK".
2022-11-13 02:59:59 The timestamps have been copied from "G:\Gebruikers\Marc\Music\Mp3" to "\\HOMESERVER\Backup MUZIEK".
2022-11-13 02:59:59 The directory "G:\Gebruikers\Marc\Music\Mp3" has been backed up.

2022-11-13 02:59:59 * Backup part for the task "MP3" has ended *
2022-11-13 02:59:59 * Number of backed up files: 0. Backup part size: 0 bytes. *

2022-11-13 02:59:59 ** Backup for the task "MP3" has ended **
2022-11-13 02:59:59 ** Processed files: 3061. Backed up files: 0. Created folders: 0. Backup size: 0 bytes. **
2022-11-13 02:59:59 ** Number of errors: 0. Time elapsed: 0 hours, 1 minutes, 17 seconds. **

2022-11-13 02:59:59 Deleting the Volume Shadow Copy image...
2022-11-13 03:00:05 The Volume Shadow Copy image has been successfully deleted.
2022-11-13 03:00:05 The impersonation of .\marc has been reverted.
2022-11-13 03:00:05 The user .\marc has been logged off.

2022-11-13 03:00:05 Mailing the log files...
2022-11-13 03:00:05 Flushing the log to file. This can take some seconds. Wait...
2022-11-13 03:00:06 The computer can now enter sleep mode.

2022-11-13 03:00:06 The backup has ended without errors.

ERR 2022-11-13 03:00:16 An error occurred while sending the log files: Host is onbekend


Cobian Reflector 2022-11-14.txt


2022-11-14 02:30:01 A backup has started...
2022-11-14 02:30:01 Preventing the computer to enter sleep mode...

2022-11-14 02:30:01 Backing up the task "Zonneke - Local disk"
2022-11-14 02:30:01 Applying the parameters to the task "Zonneke - Local disk" (if any).
2022-11-14 02:30:01 Executing the pre-backup events...
2022-11-14 02:30:01 Pausing the working thread 30 second(s)...
2022-11-14 02:30:31 Resuming the working thread after the pause.
2022-11-14 02:30:31 The pre-backup events have been executed.
2022-11-14 02:30:31 Starting the copy. The user running the task is: SYSTEM
2022-11-14 02:30:31 Connecting to ftpserver:21...
2022-11-14 02:30:31 Connected to ftpserver:21.
2022-11-14 02:30:31 Logged in into the remote server.
2022-11-14 02:30:31 Downloading the directory "/htdocs" to "G:\Gebruikers\Marc\Documenten\Zonnepanelen\htdocs"...
2022-11-14 02:30:48 The directory "/htdocs" has been downloaded to "G:\Gebruikers\Documenten\Zonnepanelen\htdocs".
2022-11-14 02:30:49 Disconnected from ftpserver.

2022-11-14 02:30:49 * Backup part for the task "Zonneke - Local disk" has ended *
2022-11-14 02:30:49 * Number of backed up files: 22. Backup part size: 7,39 MB. *

2022-11-14 02:30:49 ** Backup for the task "Zonneke - Local disk" has ended **
2022-11-14 02:30:49 ** Processed files: 10588. Backed up files: 22. Created folders: 0. Backup size: 7,39 MB. **
2022-11-14 02:30:49 ** Number of errors: 0. Time elapsed: 0 hours, 0 minutes, 47 seconds. **


2022-11-14 02:30:49 Mailing the log files...
2022-11-14 02:30:49 Flushing the log to file. This can take some seconds. Wait...
2022-11-14 02:30:49 The computer can now enter sleep mode.

2022-11-14 02:30:49 The backup has ended without errors.
Last edited by tisniwoar on 14 Nov 2022, 16:50, edited 2 times in total.
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cobian
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Re: Mailing logs error: Este host não é conhecido.

Post by cobian »

Shouldn't be related to that.
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Luis Cobian
Cobian Backup's creator
tisniwoar
Posts: 3
Joined: 14 Nov 2022, 09:21

Re: Mailing logs error: Este host não é conhecido.

Post by tisniwoar »

The second part of my post may not be totally related (logging from previous day in email, no individual log file per task...), but it shows the same error.

ERR 2022-11-14 03:00:45 An error occurred while sending the log files: Host is onbekend

Which is exactly the same error in Dutch as the one in Portuguese in the original post:

ERR 2022-06-21 19:01:12 An error occurred while sending the log files: Este host não é conhecido

I am not using GMail like rccenteno, but the email service from my Internet provider (Telenet in Belgium) which is very stable.

Is there a way to debug this error?
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cobian
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Re: Mailing logs error: Este host não é conhecido.

Post by cobian »

Are you using some Shutdown event in your task? Just a theory.
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Luis Cobian
Cobian Backup's creator
tisniwoar
Posts: 3
Joined: 14 Nov 2022, 09:21

Re: Mailing logs error: Este host não é conhecido.

Post by tisniwoar »

No, I am not.
Wakeup of system is scheduled by Server 2012 R2 Essentials backup task, and 'Prevent Sleeping' is enabled in 'settings - Engine' of Cobian Reflector.
I do have 'Use Volume Shadow Copies' enabled for each task.
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