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@jedipunkz
jedipunkz / gist:5655177
Last active December 17, 2015 18:39
OpenStack Quantum における仮想マシン通信不具合の対処

OpenStack Quantum における仮想マシン通信不具合の対処

OpenStack (Grizzly, Folsom) に仮想マシンにて特定の通信が出来ない不具合がある。理由は GRE トンネル時に Ethernet の最大フレーム長を超えてしまうため。(@ishikawa84g さんに教えて頂きました。)

解決策として

  • VM の MTU を小さくする
  • トンネルポート, 物理ポート, 物理スイッチの MTU を小さくする
  • フラグメントを許容する
@jedipunkz
jedipunkz / gist:6203132
Created August 11, 2013 02:30
Vyatta Core 6.6 R1 をルータにして画像の表示が異様に遅い場合の対処
Vyatta Core 6.6 R1 を NAT, PPPOE ルータにして使っている時、画像ファイルの
表示が異様に遅い。6.5 くらいからこの症状が出ている模様。
下記の対処を行った結果、問題が改善された。
このように policy を記述し...
# show policy
route PPPOE-IN {
@jedipunkz
jedipunkz / gist:6207781
Last active December 20, 2015 22:48
Emacs + Mew で Gmail 読み書き
Emacs + Mew で Gmail を読み書きする方法
====
Gmail を Emacs + Mew で読み書きする方法をメモしておきます。Gmail はブラウザで
読み書き出来るのに！と思われるかもしれませんが、Emacs で文章が書けるのは素晴ら
しいことです。:D
対象 OS
----
@jedipunkz
jedipunkz / gist:6878516
Created October 8, 2013 02:33
log of neutron-server.
2013-10-07 13:58:07.638 15990 ERROR neutron.common.legacy [-] Skipping unknown group key: firewall_driver
2013-10-07 13:58:08.010 15990 WARNING neutron.api.extensions [-] Extension security-group not supported by any of loaded plugins
2013-10-07 13:58:08.015 15990 WARNING neutron.api.extensions [-] Extension vpnaas not supported by any of loaded plugins
2013-10-07 13:58:08.016 15990 WARNING neutron.api.extensions [-] Extension lbaas not supported by any of loaded plugins
2013-10-07 13:58:08.016 15990 WARNING neutron.api.extensions [-] Extension service-type not supported by any of loaded plugins
2013-10-07 13:58:08.021 15990 WARNING neutron.api.extensions [-] Extension fwaas not supported by any of loaded plugins
2013-10-07 13:58:08.022 15990 WARNING neutron.api.extensions [-] Extension lbaas_agent_scheduler not supported by any of loaded plugins
2013-10-07 13:58:08.023 15990 WARNING neutron.api.extensions [-] Extension routed-service-insertion not supported by any of loaded plugins
2013-10-07 13:58:08.023 15
@jedipunkz
jedipunkz / gist:6930816
Created October 11, 2013 07:19
havana dhcp_agent.ini
とりあえず動く dhcp_agent.ini
[DEFAULT]
dhcp_agent_manager = neutron.agent.dhcp_agent.DhcpAgentWithStateReport
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
ovs_use_veth = False
root_helper = sudo /usr/local/bin/neutron-rootwrap /etc/neutron/rootwrap.conf
use_namespaces = True
@jedipunkz
jedipunkz / gist:7038542
Created October 18, 2013 08:46
havana の nova.conf
[DEFAULT]
logdir=/var/log/nova
state_path=/var/lib/nova
lock_path=/run/lock/nova
verbose=true
api_paste_config=/etc/nova/api-paste.ini
compute_scheduler_driver=nova.scheduler.simple.simplescheduler
rabbit_host=10.200.10.57
nova_url=http://10.200.10.57:8774/v1.1/
#sql_connection=mysql://novauser:novapass@10.200.10.57/nova
@jedipunkz
jedipunkz / gist:7038555
Created October 18, 2013 08:48
havana の cinder.conf
[DEFAULT]
rootwrap_config = /etc/cinder/rootwrap.conf
sql_connection = mysql://cinderuser:cinderpass@10.200.10.57/cinder
api_paste_confg = /etc/cinder/api-paste.ini
#iscsi_helper = tgtadm
iscsi_helper = ietadm
volume_name_template = volume-%s
volume_group = cinder-volumes
verbose = True
auth_strategy = keystone
@jedipunkz
jedipunkz / gist:7114767
Created October 23, 2013 08:33
jruby で native extension がインストール出来ない問題
$ gem install fog
Fetching: builder-3.2.2.gem (100%)
Successfully installed builder-3.2.2
Fetching: excon-0.27.6.gem (100%)
Successfully installed excon-0.27.6
Fetching: formatador-0.2.4.gem (100%)
Successfully installed formatador-0.2.4
Fetching: multi_json-1.8.2.gem (100%)
Successfully installed multi_json-1.8.2
Fetching: mime-types-1.25.gem (100%)
@jedipunkz
jedipunkz / gist:7129517
Created October 24, 2013 00:58
network ノードと compute ノードのsudo ovs-vsctl list interface br-tun
network $ sudo ovs-vsctl list interface br-tun
[sudo] password for thirai:
_uuid : 74fbe10f-5b52-4594-86a6-e5bf4af2d4a4
admin_state : up
cfm_fault : []
cfm_fault_status : []
cfm_health : []
cfm_mpid : []
cfm_remote_mpids : []
cfm_remote_opstate : []
@jedipunkz
jedipunkz / gist:7130700
Created October 24, 2013 03:10
neutron rootwrap のログ
Oct 24 12:09:42 grizzly0403 ovs-vsctl: 00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=2 -- --if-exists del-port br-int patch-tun
Oct 24 12:09:42 grizzly0403 ovs-vsctl: 00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=2 -- --if-exists del-port br-int int-br-eth1
Oct 24 12:09:42 grizzly0403 kernel: [62806.932529] device int-br-eth1 left promiscuous mode
Oct 24 12:09:42 grizzly0403 kernel: [62806.949230] kvm: 9522: cpu0 unhandled wrmsr: 0x38f data f
Oct 24 12:09:42 grizzly0403 ovs-vsctl: 00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=2 -- --if-exists del-port br-eth1 phy-br-eth1
Oct 24 12:09:42 grizzly0403 kernel: [62806.973292] device phy-br-eth1 left promiscuous mode
Oct 24 12:09:43 grizzly0403 ovs-vsctl: 00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --timeout=2 -- --may-exist add-port br-int int-br-eth1
Oct 24 12:09:43 grizzly0403 kernel: [62807.126934] device int-br-eth1 entered promiscuous mode
Oct 24 12:09:43 grizzly0403 ovs-vsctl: 00001|vsctl|INFO|Called as /usr/bin/ovs-vsctl --ti