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Uploaded by
NTT Communications Technology Development
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OpenStack Summit Tokyo 興味をひいたセッション
OpenStack Summit Tokyo報告会で発表した資料です。
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OpenStack Summit Tokyo 興味をひいたセッション
1.
2015年11月 NTTコミュニケーションズ 技術開発部 OpenStack Summit 2015
Tokyo 興味をひいたセッション Copyright © NTT Communications Corporation. All right reserved.
2.
Copyright © NTT
Communications Corporation. All right reserved. 自己紹介 🔸名前 三井貴之 🔸経歴 ・2015.5~ NTTCOM 技術開発部 クラウドコアTU OpenStack team 1
3.
Copyright © NTT
Communications Corporation. All right reserved. このセッションを紹介します 1. OpenStack Trivia 2. I Can’t Ping My VM! Learn How to Debug Neutron and Solve Common Problems 2
4.
Copyright © NTT
Communications Corporation. All right reserved. Trivia 3 https://www.youtube.com/watch?v=5uGIV6RKoTw
5.
Copyright © NTT
Communications Corporation. All right reserved. 発表者紹介 4 David Medberry - Time Warner Cable - OpenStack Community leader for 4+ years 「Frisbee thrower as long as I can remember...」
6.
Copyright © NTT
Communications Corporation. All right reserved. トリビアがいっぱいある 5 https://www.youtube.com/watch?v=5uGIV6RKoTw
7.
Copyright © NTT
Communications Corporation. All right reserved. 誰? 6 https://www.youtube.com/watch?v=5uGIV6RKoTw
8.
Copyright © NTT
Communications Corporation. All right reserved. Principal Enginner 7 https://www.youtube.com/watch?v=5uGIV6RKoTw
9.
Copyright © NTT
Communications Corporation. All right reserved. このオプションを使うのは? OpenStackのaffiliated service で、 次のオプションを使うものは? --yes-i-really-really-mean-it 8
10.
Copyright © NTT
Communications Corporation. All right reserved. CEPHだそうです 既存ストレージプールを削除するときに 使用 #ceph osd delete {pool-name} [{pool- name} --yes-i-really-really-mean-it] 9
11.
Copyright © NTT
Communications Corporation. All right reserved. What summit introduced DevStack? 10 DevStackが紹介されたSummitは? https://www.youtube.com/watch?v=5uGIV6RKoTw
12.
Copyright © NTT
Communications Corporation. All right reserved. BOSTON, 2011 11 https://www.youtube.com/watch?v=5uGIV6RKoTw
13.
Copyright © NTT
Communications Corporation. All right reserved. First Two subproject? OpenStackサブプロジェクトで、 一番目と2番目は? 12 https://www.youtube.com/watch?v=5uGIV6RKoTw
14.
Copyright © NTT
Communications Corporation. All right reserved. Nova&Swfit 13 最初にNova,Swift 次にglance
15.
Copyright © NTT
Communications Corporation. All right reserved. 地名 地名がついたプロジェクトは? 14
16.
Copyright © NTT
Communications Corporation. All right reserved. 地名がついたプロジェクト Sahara サハラ砂漠 Oslo ノルウェー王国首都 Murano ヴェネツィアにある島 Manila フィリピン共和国首都 Kolla ノルウェー南部の山 15
17.
Copyright © NTT
Communications Corporation. All right reserved. このセッションを紹介します 1. OpenStack Trivia 2. I Can’t Ping My VM! Learn How to Debug Neutron and Solve Common Problems 16
18.
Copyright © NTT
Communications Corporation. All right reserved. 発表者紹介 Rossella Sblendido Software Engineer, SUSE Neutron Core Reviewer 17
19.
Copyright © NTT
Communications Corporation. All right reserved. 構成 • Can’t ping/ssh VM private IP – DHCP Agent – OpenVSwitch – Linux Bridge • Can’t ping/ssh VM external IP – L3 Agent • Can’t reach the Metadata Server • Vif plugging Timeout – L2 Agent • コマンド紹介 18
20.
Copyright © NTT
Communications Corporation. All right reserved. わかりやすく丁寧な解説 シチュエーション毎に、コンポーネントの 仕組みを丁寧に解説 19 https://www.youtube.com/watch?v=aNA8Pvewu2M
21.
Copyright © NTT
Communications Corporation. All right reserved. わかりやすく丁寧な解説 シチュエーション毎に、コンポーネントの 仕組みを丁寧に解説 20 https://www.youtube.com/watch?v=aNA8Pvewu2M 初心者にオススメ
22.
Copyright © NTT
Communications Corporation. All right reserved. チェックリストも • Can’t ping/ssh VM private IP – VM up? – /var/log/nova/* /var/log/neutron/* – セキュリティグループ – DHCP Agentは動いてる? – DHCP namespaceでdnsmasqが 動いているか? – 通るVLAN IDを使っているか? 21 https://www.youtube.com/watch?v=aNA8Pvewu2M • Can’t ping/ssh VM external IP – セキュリティグループ – Private IPにpingが打てるか? – Routerにpingが打てるか? – RouterからFIPを使ってVMに pingが打てるか? – ovs-vsctl show • Can’t reach metadata server – Metadata agent up? – Metadata proxy up? – look log(neutron-metadata- agent nova-metadata-agent) – Router namespaceから metadata serverに繋がるか? – 使用イメージがoption121に対応 しているか? • Vif plugging timeout – Look log(neutron server、l2 agent) – vif_pluggin_timeout – rpc_thead_pool_size – rpc_conn_pool_size
23.
Copyright © NTT
Communications Corporation. All right reserved. チェックリストも • Can’t ping/ssh VM private IP – VM up? – /var/log/nova/* /var/log/neutron/* – セキュリティグループ – DHCP Agentは動いてる? – DHCP namespaceでdnsmasqが 動いているか? – 通るVLAN IDを使っているか? 22 https://www.youtube.com/watch?v=aNA8Pvewu2M • Can’t ping/ssh VM external IP – セキュリティグループ – Private IPにpingが打てるか? – Routerにpingが打てるか? – RouterからFIPを使ってVMに pingが打てるか? – ovs-vsctl show • Can’t reach metadata server – Metadata agent up? – Metadata proxy up? – look log(neutron-metadata- agent nova-metadata-agent) – Router namespaceから metadata serverに繋がるか? – 使用イメージがoption121に対応 しているか? • Vif plugging timeout – Look log(neutron server、l2 agent) – vif_pluggin_timeout – rpc_thead_pool_size – rpc_conn_pool_size Tcpdump all the way
24.
Copyright © NTT
Communications Corporation. All right reserved. 使えるコマンド 23 • general – ip addr – route –n – iptables –L – arp – brctl show – brctl show br-name • Tcpdump – tcpdump -i eth0 -n ip proto gre – tcpdump -envi br-int – ip netns exec qrouter-UUID tcpdump -i qr-63eaxxxxx icmp – tcpdump -i eth0 -n arp or icmp – ovs-vsctl show – tcpdump -i any -n icmp • Namespace – Ip netns list – ip netns exec qrouter-UUID ip link – ip netns exec qrouter-UUID route –n – ip netns exec qrouter-UUID iptables -L -t nat • Openvswitch – ovs-vsctl show – ovs-dpctl show – ovs-dpctl dump-flows – ovs-ofctl dump-flows – ovs-ofctl dump-flows br-tun table=21
25.
Copyright © NTT
Communications Corporation. All right reserved. 詳細はYoutubeで 24 1. OpenStack Trivia https://www.youtube.com/watch?v=5uGIV 6RKoTw 2. I Can’t Ping My VM! https://www.youtube.com/watch?v= aNA8Pvewu2M
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