[Gluster-devel] Files not available in all clients immediately
Amar S. Tumballi
amar at zresearch.com
Wed Mar 19 00:37:39 UTC 2008
Nope, thats the latest. But this should be fixed soon (at office time IST).
sorry for the inconvenience.
-amar
On Tue, Mar 18, 2008 at 5:07 PM, Claudio Cuqui <claudio at c3systems.com.br>
wrote:
> Hi Avati,
>
> I tried, but it don´t even allow me to start it:
>
> TLA Repo Revision: glusterfs--mainline--2.5--patch-709
> Time : 2008-03-18 20:52:32
> Signal Number : 11
>
> /C3Systems/gluster/bin/sbin/glusterfs -f
> /C3Systems/gluster/bin/etc/glusterfs/glusterfs-client.vol -l
> /C3Systems/gluster/bin-patch709/var/log/glusterfs/glusterfs.log -L
> WARNING /C3Systems/data/domains/webmail.pop.com.br/attachments
> volume fuse
> type mount/fuse
> option direct-io-mode 1
> option entry-timeout 1
> option attr-timeout 1
> option mount-point /C3Systems/data/domains/webmail.pop.com.br/attachments
> subvolumes iocache
> end-volume
>
> volume iocache
> type performance/io-cache
> option page-count 2
> option page-size 256KB
> subvolumes readahead
> end-volume
>
> volume readahead
> type performance/read-ahead
> option page-count 2
> option page-size 1MB
> subvolumes client
> end-volume
>
> volume client
> type protocol/client
> option remote-subvolume attachments
> option remote-host 200.175.8.85
> option transport-type tcp/client
> end-volume
>
> frame : type(1) op(34)
>
> /lib64/libc.so.6[0x3edca300c0]
> /lib64/libc.so.6(strcmp+0x0)[0x3edca75bd0]
>
> /C3Systems/gluster/bin-patch709/lib/glusterfs/1.3.8/xlator/mount/fuse.so[0x2aaaab302937]
>
> /C3Systems/gluster/bin-patch709/lib/glusterfs/1.3.8/xlator/mount/fuse.so[0x2aaaab302b42]
> /C3Systems/gluster/bin-patch709/lib/glusterfs/1.3.8/xlator/performance/io-
> cache.so(ioc_lookup_cbk+0x67)[0x2aaaab0f6557]
> /C3Systems/gluster/bin-patch709/lib/libglusterfs.so.0[0x2aaaaaab8344]
>
> /C3Systems/gluster/bin-patch709/lib/glusterfs/1.3.8/xlator/protocol/client.so(client_lookup_cbk+0x1b3)[0x2aaaaace93a3]
>
> /C3Systems/gluster/bin-patch709/lib/glusterfs/1.3.8/xlator/protocol/client.so(notify+0x8fc)[0x2aaaaace273c]
>
> /C3Systems/gluster/bin-patch709/lib/libglusterfs.so.0(sys_epoll_iteration+0xc0)[0x2aaaaaabdb90]
>
> /C3Systems/gluster/bin-patch709/lib/libglusterfs.so.0(poll_iteration+0x75)[0x2aaaaaabd095]
> [glusterfs](main+0x658)[0x4026b8]
> /lib64/libc.so.6(__libc_start_main+0xf4)[0x3edca1d8a4]
> [glusterfs][0x401b89]
> ---------
>
> Is there any other release that I should try ?
>
> Regards,
>
> Cuqui
>
> Anand Avati wrote:
> > Claudio,
> > Can you try with glusterfs--mainline--2.5--patch-709 ? A similar
> > issue is addressed in that revision. We are interested to know if that
> > solves your issue as well.
> >
> > thanks,
> >
> > avati
> >
> > 2008/3/19, Claudio Cuqui <claudio at c3systems.com.br
> > <mailto:claudio at c3systems.com.br>>:
> >
> > Hi there !
> >
> > We are using gluster on an environment with multiple webservers
> > and load
> > balancer, where we have only one server and multiple clients (6).
> > All servers are running Fedora Core 6 X86_64 with kernel
> > 2.6.22.14-72.fc6 (with exactly same packages installed in all
> server).
> > The gluster version used is 1.3.8pre2 + 2.7.2glfs8 (both compiled
> > locally). The underlying FS is reiserfs mounted with the follow
> > options
> > rw,noatime,nodiratime,notail. This filesystem has almost 4 thousand
> > files from 2k - 10Mb in size. We are using gluster to export this
> > filesystem for all other webservers. Below the config file used by
> > gluster server:
> >
> > ### Export volume "brick" with the contents of "/home/export"
> > directory.
> > volume attachments-nl
> > type storage/posix # POSIX FS translator
> > option directory
> > /C3Systems/data/domains/webmail.pop.com.br/attachments
> > end-volume
> >
> > volume attachments
> > type features/posix-locks
> > subvolumes attachments-nl
> > option mandatory on
> > end-volume
> >
> >
> > ### Add network serving capability to above brick.
> > volume server
> > type protocol/server
> > option transport-type tcp/server # For TCP/IP transport
> > option client-volume-filename
> > /C3Systems/gluster/bin/etc/glusterfs/glusterfs-client.vol
> > subvolumes attachments-nl attachments
> > option auth.ip.attachments-nl.allow * # Allow access to
> > "attachments-nl" volume
> > option auth.ip.attachments.allow * # Allow access to
> > "attachments" volume
> > end-volume
> >
> > The problem happen when the LB sent the post (the uploaded file)
> > to one
> > webserver and than the next post goes to other webserver that try
> to
> > access the same file. When this happen, the other client got these
> > messages:
> >
> > PHP Warning:
> >
> fopen(/C3Systems/data/domains/c3systems.com.br/attachments/27gBgFQSIiOLDEo7AvxlpsFkqZw9jdnZ):
> > failed to open stream: File Not Found.
> > PHP Warning:
> >
> unlink(/C3Systems/data/domains/c3systems.com.br/attachments/5Dech7jNxjORZ2cZ9IAbR7kmgmgn2vTE):
> > File Not Found.
> >
> > LB is using RoundRobin to distribute the load between servers.
> >
> > Below, you can find the gluster configuration file used by all
> > clients:
> >
> > ### file: client-volume.spec.sample
> >
> > ##############################################
> > ### GlusterFS Client Volume Specification ##
> > ##############################################
> >
> > #### CONFIG FILE RULES:
> > ### "#" is comment character.
> > ### - Config file is case sensitive
> > ### - Options within a volume block can be in any order.
> > ### - Spaces or tabs are used as delimitter within a line.
> > ### - Each option should end within a line.
> > ### - Missing or commented fields will assume default values.
> > ### - Blank/commented lines are allowed.
> > ### - Sub-volumes should already be defined above before referring.
> >
> > ### Add client feature and attach to remote subvolume
> > volume client
> > type protocol/client
> > option transport-type tcp/client # for TCP/IP transport
> > # option ib-verbs-work-request-send-size 1048576
> > # option ib-verbs-work-request-send-count 16
> > # option ib-verbs-work-request-recv-size 1048576
> > # option ib-verbs-work-request-recv-count 16
> > # option transport-type ib-sdp/client # for Infiniband transport
> > # option transport-type ib-verbs/client # for ib-verbs transport
> > option remote-host 1.2.3.4 <http://1.2.3.4> # IP address of
> > the remote brick
> > # option remote-port 6996 # default server port is 6996
> >
> > # option transport-timeout 30 # seconds to wait for a reply
> > # from server for each
> request
> > option remote-subvolume attachments # name of the remote volume
> > end-volume
> >
> > ### Add readahead feature
> > volume readahead
> > type performance/read-ahead
> > option page-size 1MB # unit in bytes
> > option page-count 2 # cache per file = (page-count x
> > page-size)
> > subvolumes client
> > end-volume
> >
> > ### Add IO-Cache feature
> > volume iocache
> > type performance/io-cache
> > option page-size 256KB
> > option page-count 2
> > subvolumes readahead
> > end-volume
> >
> > ### Add writeback feature
> > #volume writeback
> > # type performance/write-behind
> > # option aggregate-size 1MB
> > # option flush-behind off
> > # subvolumes iocache
> > #end-volume
> >
> > When I do the test manually, everything goes fine. What I think is
> > happening is that gluster isn´t having enough time to sync all
> clients
> > before clients trying to access the files (those servers are very
> busy
> > ones.....they receive millions of requests per day).
> >
> > Is this configuration appropriate for this situation ? a bug ? a
> > feature
> > ;-) ? Is there any option like the sync used in NFS that I can use
> in
> > order guarantee that when the file is write down, all the clients
> > already
> > have it ?
> >
> > TIA,
> >
> > Claudio Cuqui
> >
> >
> >
> >
> >
> > _______________________________________________
> > Gluster-devel mailing list
> > Gluster-devel at nongnu.org <mailto:Gluster-devel at nongnu.org>
> > http://lists.nongnu.org/mailman/listinfo/gluster-devel
> >
> >
> >
> >
> > --
> > If I traveled to the end of the rainbow
> > As Dame Fortune did intend,
> > Murphy would be there to tell me
> > The pot's at the other end.
>
> _______________________________________________
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> Gluster-devel at nongnu.org
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>
--
Amar Tumballi
Gluster/GlusterFS Hacker
[bulde on #gluster/irc.gnu.org]
http://www.zresearch.com - Commoditizing Supercomputing and Superstorage!
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