Presentation in LinuxCon/CloudOpen Japan on May 31st, 2013.

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Agenda
! About me
! Gluster in Japan
! Difficulties and Users' Requests
! Conclusion

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About!
Me
自己紹介

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About me
! Work at as a ...
! Programmer
 (Most recently)
 Interested in
! Software Engineer
 Cloud Computing (Storage, Network, Server)
 Supporting GlusterFS/Red Hat Storage Introduction
 Now with Red Hat K.K!

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About me
! GlusterFS since 2007 (v1.3.7)
 for my internet crawler at first.
! Love Gluster because of the ...
 Potential
 Performance
 Code
 Community
! Introduced or introducing it into ...
 Printer and scanner solution (field trial)
 Email services
 File storage services (WebDAV, NFS)
 Backup services
 Shared storage platform
! A board member of the Gluster
Community

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ここ1年の日本におけるGlusterFSの動向
Gluster!
in!
Japan!

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Gluster in Japan
! Approaches by other IT sectors
 A sponsor of IaaS cloud computing project
 A server manufacturer
 A CPU manufacturer
 An InfiniBand manufacturer
! Collaboration with other cloud
components
 OCDET, an open source community

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Gluster in Japan
! Medical Field became ready for cloud

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Gluster in Japan
! Introduction example in Medical field
Eastern
Brick
Eastern
Brick
Western
Brick
Western
Brick
Western
Brick
Western
Brick
Eastern
Brick
Eastern
Brick
lsyncd + rsync
Western
Japan
Secret Sharing
Eastern
Japan
Storage
Tiering
* GlusterFS 3.2.7

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直面している問題とユーザの要望
Difficulties!
and!
Users'!
Requests!

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Difficulties and Users' Requests
! Premise: Japanese requirements for
service in general (my subjective view)
 Continuity, most of all
 Never stop or pause it
 Insensible failure is also unacceptable
 Even outdated software should continue running
 The customer is king
 Any components have to meet each customer’s requirement
 So each service should have as many functions as possible
 Cost-cut! Cost-cut! Cost-cut!
 Never lose out price wars
 Never overspend the budget
 The annual budget is determined in March and is too limited,
never increase as much as the one last year
 Assign least engineers, sales and managers

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Difficulties and Users' Requests
! Outdated GlusterFS
 Upgrading GlusterFS 1.3, 2.0 to 3.x is difficult
 xattr and dht should be changed
 Already tooooooo many files there to migrate
 No maintenance window is reserved
 No budget is reserved
 No one maintains and supports ancient codes
?

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Vol2
Difficulties and Users' Requests
! NFS and Multi-tenancy
 'nfs.rpc-auth-allow' for multi-tenancy
 some operations on a volume affect
IOs to other volumes
Vol1
Vol0
e.g.
gluster volume set ...
IO
IO
IO
Vol2
Vol1
Vol0
IO
IO
IO

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Difficulties and Users' Requests

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glusterfs
Difficulties and Users' Requests
! CTDB and NFS connectivity
 failover is pretty good
 failback causes write()ing clients pause
the IO
glusterfs
glusterfs
CTDB
VIP
write()
glusterfs
glusterfs
CTDB
VIP
write()
glusterfs
glusterfs
glusterfs
glusterfs
CTDB
VIP
write()
failover
failback

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Difficulties and Users' Requests
! 3-way replication
 neither supported nor recommended
 still strong needs for 3-way
! Multi-master Geo-replication
 bi-directional
 on the roadmap?

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Conclusion
まとめ

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Conclusion
! It was the hottest year ever
 because GlusterFS got a lot of visibility to other IT sectors.
! The government-led movement
 made GlusterFS introduced into medical field.
! In Japanese quality requirement
of services, still GlusterFS has ...
 some issues to be solved
 many requests to meet
All of them are the facts in Japan 2012-2013!
Let’s make Gluster live up to
Japanese expectations together!

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To contact us, e-mail here -> storage-contact@nttpc.co.jp