Parpool Java exception occurred: 2014a & Mac - Only when wifi at home turned on?
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Setup: Matlab 2014a, Mac OS x 10.7.5.
Problem: Parpool throws a Java exception when I try to run it with my home wifi turned on and works when I turn it off.
Run: parpool
Error:
Error using parpool (line 99)
Java exception occurred:
java.net.UnknownHostException: craig-2: craig-2: nodename nor servname provided, or not known
at java.net.InetAddress.getLocalHost(InetAddress.java:1438)
Caused by: java.net.UnknownHostException: craig-2: nodename nor servname provided, or not known
at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:866)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1258)
at java.net.InetAddress.getLocalHost(InetAddress.java:1434)
Any ideas?
Thanks,
Craig
7 个评论
Edric Ellis
2014-7-3
Could you please try the following in a MATLAB session when your wifi is switched on:
clear classes
c = parcluster('local')
(I'm expecting this to cause problems too - it would be great if you could post the full error).
Craig
2014-7-3
Craig
2014-7-6
Edric Ellis
2014-7-9
Hm, I'm not totally sure what's going wrong here. There's something awry with the network name resolution on your machine. I suggest you might be best contacting our installation support team to see if they can help you.
Craig
2014-7-9
Marco Borges
2014-8-13
I have the same error! Maybe is related with this java but, don't you think?
https://bugs.openjdk.java.net/browse/JDK-7180557
回答（4 个）
Craig
2014-8-7
4 个投票
4 个评论
Viktor Ivanov
2014-8-26
Modifying the hosts file fixed the issue for me. In terminal, typing
hostname
or at the matlab prompt '!hostname' will tell you your local host name. Copy the output from that command and go to the file /etc/hosts and add the line
127.0.0.1 {your local host name}
You need sudo privileges to modify this file. That did the trick for me.
Daniel
2014-9-24
I also had the same issue on 2013b and OS X 10.9.5 Adding my own machine to /etc/hosts did the trick for me! Thanks & Cheers, Daniel
Franck Dernoncourt
2015-2-2
Same here, matlab prompt '!hostname' and adding it to host file worked for me. Ubuntu 12.04 with R2014a x64. Thanks!
Zhi Feng
2015-12-11
it works. Thanks
Thomas Ibbotson
2015-2-2
2 个投票
Carsten Hoever
2014-8-5
0 个投票
Did you find a solution for the problem? I am having the same problem with OSX 10.9.3:
Error using matlabpool (line 137) Java exception occurred: java.net.UnknownHostException: server.munkiisland.private: server.munkiisland.private: nodename nor servname provided, or not known at java.net.InetAddress.getLocalHost(InetAddress.java:1438) Caused by: java.net.UnknownHostException: server.munkiisland.private: nodename nor servname provided, or not known at java.net.Inet6AddressImpl.lookupAllHostAddr(Native Method) at java.net.InetAddress$1.lookupAllHostAddr(InetAddress.java:866) at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1258) at java.net.InetAddress.getLocalHost(InetAddress.java:1434)
2 个评论
Steven
2014-8-5
I have not found a permanent solution, but the issue seems to be related to network settings. When I unplug my computer from the network and turn off WiFi, I am able to get the parallel pool to start. This is only a temporary workaround, but I hope to figure out the underlying cause with a bit more investigation.
-Blair
Craig
2014-8-7
Steven
2014-8-7
0 个投票
Thanks for the suggestion Craig! I went to check the host file and noticed that my parpool is starting up fine now. The only thing that changed is that I shutdown and brought my laptop home for a few days where I used it on a different network. Very curious...
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2015-12-11
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