since 1.35 content server fails to start - bonjour failure, wrong IP

Clark G. Flipper · 05-12-2014, 03:02 AM

Hi everyone,
I am running Calibre on a Macbook, and since release 1.35 calibre server fails to start. The problem is similar to the one described in thread Content Server grabs wrong IP address except that in my case setting the correct IP adress in tweaks still leads to the following failure:

[12/May/2014:08:42:52] ENGINE Serving on 192.168.2.103:8080
[12/May/2014:08:42:52] Failed to start BonJour:
[12/May/2014:08:42:52] Traceback (most recent call last):
File "site-packages/calibre/library/server/base.py", line 99, in start
File "site-packages/calibre/utils/mdns.py", line 145, in publish
File "site-packages/calibre/utils/mdns.py", line 103, in start_server
File "site-packages/calibre/utils/Zeroconf.py", line 1263, in __init__
gaierror: [Errno 8] nodename nor servname provided, or not known

What can I do?

kovidgoyal · 05-12-2014, 03:15 AM

That error means bonjour failed to start, the server is still working. And the error is caused by some misconfiguration on your computer, probably an invalid hostname/missing entry in /etc/hosts or the like. (the error means that bonjour could not determine the IP address for your computer/could not determine the hostname for your computer.

Clark G. Flipper · 05-12-2014, 03:32 AM

Hi kovidgoyal,
thanks for quick reply. I partly agree. The server seems to be running indeed, but it does not provide the full functionality. Marvin used to locate the server automatically, but now it requires a hard coded address.
About the configuration; you may have a point here. The address is not in /etc/hosts, because it is assigned by DHCP. The trouble may come from the fully qualified domain name, because MAC OS X does not allow me to define the domainname. But still, something must have changed in calibre, because up to 1.34 it worked.

kovidgoyal · 05-12-2014, 03:36 AM

There have been no changes to calibre's networking code in a very long time, feel free to downgrade if you dont believe me, old releases are linked to on the download page.

DoctorOhh · 05-12-2014, 05:58 AM

Quote:

Originally Posted by Clark G. Flipper

The server seems to be running indeed, but it does not provide the full functionality. Marvin used to locate the server automatically, but now it requires a hard coded address.

Since you are able to get to calibre by hard coding the IP in Marvin this is proof that calibre is fine. Automatically finding the server is a function of your OS in this case it would seem to reside with Bonjour and has nothing to do with calibre.

Quote:

Originally Posted by Clark G. Flipper

But still, something must have changed in calibre, because up to 1.34 it worked.

You are correct something must have changed. Maybe it is a corrupt install in which case you can redownload calibre and try again. If that doesn't work then you are left with a problem on your system outside of calibre that is causing the problem.

Good luck in locating the source of your difficulties.

chaley · 05-12-2014, 06:57 AM

To be specific, that error happens if either calibre cannot determine the host name for the computer or cannot determine the IP address for the host name provided. That test has been there for years.

Try using DHCP to assign a fixed IP. Run "hostname" in a terminal window and see what comes back. Make sure that hostname is in /etc/hosts with the correct IP. If you have a local DNS, make sure it also returns the correct IP address for that hostname.

My guess is that something on your system changed what "hostname" is returning.

Clark G. Flipper · 05-12-2014, 07:21 AM

Chaley, you are close. "hostname -f" should return the fully qualified hostname, but in my case the domain is missing. Domains on apple systems are a mess.

Anyway, I am now using fixed addresses in two places and I consider that an acceptable workaround.

So, thanks everyone.

05-12-2014, 03:02 AM	#1
Clark G. Flipper Connoisseur Posts: 59 Karma: 10 Join Date: Jan 2012 Device: iPad	since 1.35 content server fails to start - bonjour failure, wrong IP Hi everyone, I am running Calibre on a Macbook, and since release 1.35 calibre server fails to start. The problem is similar to the one described in thread Content Server grabs wrong IP address except that in my case setting the correct IP adress in tweaks still leads to the following failure: [12/May/2014:08:42:52] ENGINE Serving on 192.168.2.103:8080 [12/May/2014:08:42:52] Failed to start BonJour: [12/May/2014:08:42:52] Traceback (most recent call last): File "site-packages/calibre/library/server/base.py", line 99, in start File "site-packages/calibre/utils/mdns.py", line 145, in publish File "site-packages/calibre/utils/mdns.py", line 103, in start_server File "site-packages/calibre/utils/Zeroconf.py", line 1263, in __init__ gaierror: [Errno 8] nodename nor servname provided, or not known What can I do?

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05-12-2014, 03:15 AM	#2
kovidgoyal creator of calibre Posts: 45,305 Karma: 27111242 Join Date: Oct 2006 Location: Mumbai, India Device: Various	That error means bonjour failed to start, the server is still working. And the error is caused by some misconfiguration on your computer, probably an invalid hostname/missing entry in /etc/hosts or the like. (the error means that bonjour could not determine the IP address for your computer/could not determine the hostname for your computer.

05-12-2014, 03:32 AM	#3
Clark G. Flipper Connoisseur Posts: 59 Karma: 10 Join Date: Jan 2012 Device: iPad	Hi kovidgoyal, thanks for quick reply. I partly agree. The server seems to be running indeed, but it does not provide the full functionality. Marvin used to locate the server automatically, but now it requires a hard coded address. About the configuration; you may have a point here. The address is not in /etc/hosts, because it is assigned by DHCP. The trouble may come from the fully qualified domain name, because MAC OS X does not allow me to define the domainname. But still, something must have changed in calibre, because up to 1.34 it worked.

05-12-2014, 03:36 AM	#4
kovidgoyal creator of calibre Posts: 45,305 Karma: 27111242 Join Date: Oct 2006 Location: Mumbai, India Device: Various	There have been no changes to calibre's networking code in a very long time, feel free to downgrade if you dont believe me, old releases are linked to on the download page.

05-12-2014, 06:57 AM	#6
chaley Grand Sorcerer Posts: 12,409 Karma: 8012652 Join Date: Jan 2010 Location: Notts, England Device: Kobo Libra 2	To be specific, that error happens if either calibre cannot determine the host name for the computer or cannot determine the IP address for the host name provided. That test has been there for years. Try using DHCP to assign a fixed IP. Run "hostname" in a terminal window and see what comes back. Make sure that hostname is in /etc/hosts with the correct IP. If you have a local DNS, make sure it also returns the correct IP address for that hostname. My guess is that something on your system changed what "hostname" is returning.

05-12-2014, 07:21 AM	#7
Clark G. Flipper Connoisseur Posts: 59 Karma: 10 Join Date: Jan 2012 Device: iPad	Chaley, you are close. "hostname -f" should return the fully qualified hostname, but in my case the domain is missing. Domains on apple systems are a mess. Anyway, I am now using fixed addresses in two places and I consider that an acceptable workaround. So, thanks everyone.

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