Hi all, Recently I am using Sahara/Heat to create clusters in my own devstack setup (we do not install neutron and n-net is used). Some instances randomly could not be connected via ssh with "Broken pipe" messages, and reconnecting to it will report "Permission denied" (other connections like html are also disconnected). This will cause the whole cluster down.
ubuntu@c1-cdhmaster54-001:~$ Write failed: Broken pipe stack@ken-stack:~$ ssh -i /home/stack/ken.key -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -l ubuntu 192.168.234.226 Warning: Permanently added '192.168.234.226' (ECDSA) to the list of known hosts. Permission denied (publickey). However, after several minutes, the instance can be connected again! stack@ken-stack:~$ ssh -i /home/stack/ken.key -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -l ubuntu 192.168.234.226 Warning: Permanently added '192.168.234.226' (ECDSA) to the list of known hosts. Welcome to Ubuntu 12.04.5 LTS (GNU/Linux 3.2.0-84-virtual x86_64) * Documentation: https://help.ubuntu.com/ System information as of Wed Jun 10 02:52:59 UTC 2015 System load: 0.29 Processes: 101 Usage of /: 13.4% of 37.51GB Users logged in: 1 Memory usage: 49% IP address for eth0: 10.11.12.2 Swap usage: 0% Graph this data and manage this system at: https://landscape.canonical.com/ Get cloud support with Ubuntu Advantage Cloud Guest: http://www.ubuntu.com/business/services/cloud 0 packages can be updated. 0 updates are security updates. Last login: Wed Jun 10 02:52:09 2015 from 192.168.234.226 ubuntu@c1-cdhmaster54-001:~$ It is quite weird. Have any of you met this before, and give any suggestions? Thanks a lot. -Ken _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : [email protected] Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
