1. Digging OpenStack
whitekid@gmail.com
@kiddtm
http://blog.woosum.net
http://linkedin.com/in/whitekid

2. Live Migration
for compute node maintenance
(true) Live Migration
Block Live Migration
Migrate
Evacuate(for compute node failure)

3. Usages
(True) Live Migration
nova live-migration <instance> <compute node>
Block Migration
nova live-migration --block_migration <instance> <compute node>
migrate
nova migrate <instance>
evacuation
nova evacuate <instance> <compute node>
nova evacuate <instance> <compute node> --on-shared-storage

4. Live migration
Requirements pros cons
(True) Live Migration Shared Storage fast shared storage
Block Migration N/A
no shared storage
local I/O
slower
failure sometimes
Migrate N/A .
scheduler
vm rebooted
Evacuation
ssh public key for
nova@
. settings only
only boot from
volume
Shared Storage
customization on nova
boot

5. de facto standard for OpenStack storage by
community(^^)
for Live migration
Ceph

6. ceph
rising star: dream host...
kvm, qemu integration
inktank, ubuntu, suse
cinder, glance, nova(havana) integration
self-healing, self-managing… almost zero maintenance
gluster
glance, cinder will be next release
nova for glusterfs
gluster 3.4 released at 7.15
… including virtual block storage, OpenStack integration and a lot more…
no documentation and ubuntu repo has 3.2 ^^
. vs GlusterFS

10. feasible solutions
(True) Live Migration
ceph for cinder, glance
glusterfs for instance storage
Block Migration(*)
ceph for cinder, glance
local nova instances storage
in havana we go to true live migration
all ceph
nova integration patch in review(targeted h2)

11. simple!! performance
testing
SPEC
Network 1G, no SSD single HDD
1 MON, 3 OSD
vm disk write performance
local disk: 250MB/sec
ceph volume: 100~120MB/sec
with bonding: 120~150MB/sec

12. availability zone vs host
aggregation
in grizzly zone was deprecated
node_availability_zone →
default_availability_zone
only effect to nova-api
in grizzly host aggregation is zone

13. #

14. nova

15. host-list
+-----------+-------------+----------+
|

16. host_name

17. |

18. service

23. |

24. zone

29. |
+-----------+-------------+----------+
|

30. compute01

31. |

32. compute

37. |

38. nova

43. |
|

44. compute02

45. |

46. compute

51. |

52. nova

57. |
|

58. compute03

59. |

60. compute

65. |

66. nova

71. |
user1

72. #

73. nova

74. availability-zone-list
+------+-----------+
|

75. Name

76. |

77. Status

81. |
+------+-----------+
|

82. nova

83. |

84. available

85. |
+------+-----------+
#

86. nova

87. aggregate-create

88. zone1

89. zone1
#

90. nova

91. aggregate-create

92. zone2

93. zone2
#

94. nova

95. aggregate-create

96. zone3

97. zone3
#

98. nova

99. aggregate-list
+----+-------+-------------------+
|

100. Id

101. |

102. Name

104. |

105. Availability

106. Zone

107. |
+----+-------+-------------------+
|

108. 7

110. |

111. zone1

112. |

113. zone1

126. |
|

127. 8

129. |

130. zone2

131. |

132. zone2

145. |
|

146. 9

148. |

149. zone3

150. |

151. zone3

164. |
+----+-------+-------------------+
#

165. nova

166. aggregate-add-host

167. 1

168. compute01
#

169. nova

170. aggregate-add-host

171. 2

172. compute02
#

173. nova

174. aggregate-add-host

175. 3

176. compute03

177. #

178. nova

179. availability-zone-list
+-----------------------+----------------------------------------+
|

180. Name

198. |

199. Status

232. |
+-----------------------+----------------------------------------+
|

233. zone1

250. |

251. available

281. |
|

282. |-

283. compute01

293. |

333. |
|

334. |

335. |-

336. nova-compute

341. |

342. enabled

343. :-)

344. 2013-07-17T10:04:18.000000

345. |
|

346. zone2

363. |

364. available

394. |
|

395. |-

396. compute02

406. |

446. |
|

447. |

448. |-

449. nova-compute

454. |

455. enabled

456. :-)

457. 2013-07-17T10:04:19.000000

458. |
|

459. zone3

476. |

477. available

507. |
|

508. |-

509. compute03

519. |

559. |
|

560. |

561. |-

562. nova-compute

567. |

568. enabled

569. :-)

570. 2013-07-17T10:04:24.000000

571. |
+-----------------------+----------------------------------------+
user1

572. #

573. nova

574. availability-zone-list
+-------+-----------+
|

575. Name

577. |

578. Status

582. |
+-------+-----------+
|

583. zone1

584. |

585. available

586. |
|

587. zone2

588. |

589. available

590. |
|

591. zone3

592. |

593. available

594. |
+-------+-----------+
#

595. nova

596. boot

597. --flavor=1

598. --nic

599. net-id=$NET

600. --image=$IMAGE_ID

603. --key_name=admin

604. --availability-zone

605. zone1

606. vm
#

607. nova

608. show

609. vm
+-----------------------------+------------------------------------------------------------+
|

610. Property

630. |

631. Value

685. |
+-----------------------------+------------------------------------------------------------+
|

686. status

708. |

709. ACTIVE

762. |
|

763. flavor

785. |

786. m1.tiny

787. (1)

835. |
|

836. id

862. |

863. 1dc69ddb-b737-4940-9386-9bf7d8feffec

886. |
|

887. security_groups

900. |

901. [{u'name':

902. u'default'}]

938. |
|

939. demo2

940. network

955. |

956. 10.10.10.4

1005. |
|

1006. user_id

1027. |

1028. 76c1bbb3d2d84d72b11f7ca05ed316a5

1055. |
|

1056. name

1080. |

1081. vm

1138. |
|

1139. tenant_id

1158. |

1159. 55d7c801728a457392d25a72293e3d21

1186. |
|

1187. OS-EXT-STS:power_state

1193. |

1194. 1

1252. |
|

1253. OS-EXT-AZ:availability_zone

1254. |

1255. g1

1312. |
|

1313. config_drive

1329. |

1389. |
+-----------------------------+------------------------------------------------------------+

1390. no horizon integration
some display bugs

1391. there is no way update flavor with nova cli
if you want then use SQL
in horizon, delete and create flavor
if your want disable flavor with nova cli
make it private
UPDATE instance_types SET is_public = 0
WHERE name = ‘m1.large’
flavor

1392. private flavor
when
hadoop flavor to hadoop team
database flavor to database team
usage
nova flavor-create name id ram disk vcpu
--is-public false
nova flavor-access-add flavor tenant
nova flavor-access-list --flavor flavor_id

1393. keystone n:n
keystone user-create --name user1 --pass user1
You are not authorized for any projects.
keystone user-role-add --user user2 --tenant
demo2 --role Member
keystone user-role-add --user user2 --tenant
demo1 --role Member
admin role is OpenStack system admin role