4:57 p.m.
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On 04/03/2015 10=3A04 PM=2C Alastair Neil wrote=3A
=3E Any follow up on this=3F
=3E
=3E Are there known issues using a replica 3 glsuter datastore with lvm
=3E thin provisioned bricks=3F
=3E
=3E On 20 March 2015 at 15=3A22=2C Alastair Neil =3Cajneil=2Etech=40gmail=
=2Ecom
=3E =3Cmailto=3Aajneil=2Etech=40gmail=2Ecom=3E=3E wrote=3A
=3E
=3E CentOS 6=2E6
=3E =20
=3E
=3E vdsm-4=2E16=2E10-8=2Egitc937927=2Eel6
=3E glusterfs-3=2E6=2E2-1=2Eel6
=3E 2=2E6=2E32 - 504=2E8=2E1=2Eel6=2Ex86=5F64
=3E
=3E
=3E moved to 3=2E6 specifically to get the snapshotting feature=2C henc=
e
=3E my desire to migrate to thinly provisioned lvm bricks=2E
=3E
Well on the glusterfs mailinglist there have been discussions=3A
=3E 3=2E6=2E2 is a major release and introduces some new features in cluste=
r
=3E wide concept=2E Additionally it is not stable yet=2E
=3E
=3E
=3E On 20 March 2015 at 14=3A57=2C Darrell Budic =3Cbudic=40onholygroun=
d=2Ecom
=3E =3Cmailto=3Abudic=40onholyground=2Ecom=3E=3E wrote=3A
=3E
=3E What version of gluster are you running on these=3F
=3E
=3E I=92ve seen high load during heals bounce my hosted engine
=3E around due to overall system load=2C but never pause anything=
=3E else=2E Cent 7 combo storage/host systems=2C gluster 3=2E5=2E2=
=2E
=3E
=3E
=3E=3E On Mar 20=2C 2015=2C at 9=3A57 AM=2C Alastair Neil
=3E=3E =3Cajneil=2Etech=40gmail=2Ecom =3Cmailto=3Aajneil=2Etech=40g=
mail=2Ecom=3E=3E wrote=3A
=3E=3E
=3E=3E Pranith
=3E=3E
=3E=3E I have run a pretty straightforward test=2E I created a two=
=3E=3E brick 50 G replica volume with normal lvm bricks=2C and
=3E=3E installed two servers=2C one centos 6=2E6 and one centos 7=
=2E0=2E I
=3E=3E kicked off bonnie++ on both to generate some file system
=3E=3E activity and then made the volume replica 3=2E I saw no iss=
ues
=3E=3E on the servers=2E =20
=3E=3E
=3E=3E Not clear if this is a sufficiently rigorous test and the
=3E=3E Volume I have had issues on is a 3TB volume with about 2TB=
used=2E
=3E=3E
=3E=3E -Alastair
=3E=3E
=3E=3E
=3E=3E On 19 March 2015 at 12=3A30=2C Alastair Neil
=3E=3E =3Cajneil=2Etech=40gmail=2Ecom =3Cmailto=3Aajneil=2Etech=40g=
mail=2Ecom=3E=3E wrote=3A
=3E=3E
=3E=3E I don=27t think I have the resources to test it
=3E=3E meaningfully=2E I have about 50 vms on my primary stora=
ge
=3E=3E domain=2E I might be able to set up a small 50 GB volum=
e
=3E=3E and provision 2 or 3 vms running test loads but I=27m no=
t
=3E=3E sure it would be comparable=2E I=27ll give it a try and=
let
=3E=3E you know if I see similar behaviour=2E
=3E=3E
=3E=3E On 19 March 2015 at 11=3A34=2C Pranith Kumar Karampuri=
=3E=3E =3Cpkarampu=40redhat=2Ecom =3Cmailto=3Apkarampu=40redhat=
=2Ecom=3E=3E wrote=3A
=3E=3E
=3E=3E Without thinly provisioned lvm=2E
=3E=3E
=3E=3E Pranith
=3E=3E
=3E=3E On 03/19/2015 08=3A01 PM=2C Alastair Neil wrote=3A=
=3E=3E=3E do you mean raw partitions as bricks or simply wi=
th
=3E=3E=3E out thin provisioned lvm=3F
=3E=3E=3E
=3E=3E=3E
=3E=3E=3E
=3E=3E=3E On 19 March 2015 at 00=3A32=2C Pranith Kumar Kara=
mpuri
=3E=3E=3E =3Cpkarampu=40redhat=2Ecom =3Cmailto=3Apkarampu=
=40redhat=2Ecom=3E=3E
=3E=3E=3E wrote=3A
=3E=3E=3E
=3E=3E=3E Could you let me know if you see this problem=
=3E=3E=3E without lvm as well=3F
=3E=3E=3E
=3E=3E=3E Pranith
=3E=3E=3E
=3E=3E=3E On 03/18/2015 08=3A25 PM=2C Alastair Neil wro=
te=3A
=3E=3E=3E=3E I am in the process of replacing the brick=
s
=3E=3E=3E=3E with thinly provisioned lvs yes=2E
=3E=3E=3E=3E
=3E=3E=3E=3E
=3E=3E=3E=3E
=3E=3E=3E=3E On 18 March 2015 at 09=3A35=2C Pranith Kum=
ar
=3E=3E=3E=3E Karampuri =3Cpkarampu=40redhat=2Ecom
=3E=3E=3E=3E =3Cmailto=3Apkarampu=40redhat=2Ecom=3E=3E=
wrote=3A
=3E=3E=3E=3E
=3E=3E=3E=3E hi=2C
=3E=3E=3E=3E Are you using thin-lvm based bac=
kend
=3E=3E=3E=3E on which the bricks are created=3F
=3E=3E=3E=3E
=3E=3E=3E=3E Pranith
=3E=3E=3E=3E
=3E=3E=3E=3E On 03/18/2015 02=3A05 AM=2C Alastair N=
eil wrote=3A
=3E=3E=3E=3E=3E I have a Ovirt cluster with 6 VM ho=
sts and
=3E=3E=3E=3E=3E 4 gluster nodes=2E There are two
=3E=3E=3E=3E=3E virtualisation clusters one with tw=
o
=3E=3E=3E=3E=3E nehelem nodes and one with four
=3E=3E=3E=3E=3E sandybridge nodes=2E My master sto=
rage
=3E=3E=3E=3E=3E domain is a GlusterFS backed by a r=
eplica
=3E=3E=3E=3E=3E 3 gluster volume from 3 of the glus=
ter
=3E=3E=3E=3E=3E nodes=2E The engine is a hosted en=
gine
=3E=3E=3E=3E=3E 3=2E5=2E1 on 3 of the sandybridge n=
odes=2C with
=3E=3E=3E=3E=3E storage broviede by nfs from a diff=
erent
=3E=3E=3E=3E=3E gluster volume=2E All the hosts ar=
e CentOS
=3E=3E=3E=3E=3E 6=2E6=2E
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E vdsm-4=2E16=2E10-8=2Egitc93792=
7=2Eel6
=3E=3E=3E=3E=3E glusterfs-3=2E6=2E2-1=2Eel6
=3E=3E=3E=3E=3E 2=2E6=2E32 - 504=2E8=2E1=2Eel6=
=2Ex86=5F64
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E Problems happen when I try to add a=
new
=3E=3E=3E=3E=3E brick or replace a brick eventually=
the
=3E=3E=3E=3E=3E self heal will kill the VMs=2E In t=
he VM=27s
=3E=3E=3E=3E=3E logs I see kernel hung task message=
s=2E=20
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A INFO=3A
=3E=3E=3E=3E=3E task nginx=3A1736 blocked for m=
ore than
=3E=3E=3E=3E=3E 120 seconds=2E
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A =20
=3E=3E=3E=3E=3E Not tainted 2=2E6=2E32-504=2E3=
=2E3=2Eel6=2Ex86=5F64 =231
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A =22echo
=3E=3E=3E=3E=3E 0 =3E
=3E=3E=3E=3E=3E /proc/sys/kernel/hung=5Ftask=5F=
timeout=5Fsecs=22
=3E=3E=3E=3E=3E disables this message=2E
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A nginx
=3E=3E=3E=3E=3E D 0000000000000001 =20=
0 1736
=3E=3E=3E=3E=3E 1735 0x00000080
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E ffff8800778b17a8 00000000000000=
82
=3E=3E=3E=3E=3E 0000000000000000 00000000000126=
c0
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E ffff88007e5c6500 ffff8800371700=
80
=3E=3E=3E=3E=3E 0006ce5c85bd9185 ffff88007e5c64=
d0
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E ffff88007a614ae0 00000001722b64=
ba
=3E=3E=3E=3E=3E ffff88007a615098 ffff8800778b1f=
d8
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A Call
=3E=3E=3E=3E=3E Trace=3A
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff8152a885=3E=5D
=3E=3E=3E=3E=3E schedule=5Ftimeout+0x215/0x2e0=
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff8152a503=3E=5D
=3E=3E=3E=3E=3E wait=5Ffor=5Fcommon+0x123/0x180=
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff81064b90=3E=5D=20=
=3F
=3E=3E=3E=3E=3E default=5Fwake=5Ffunction+0x0/0=
x20
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa0210a76=3E=5D=20=
=3F
=3E=3E=3E=3E=3E =5Fxfs=5Fbuf=5Fread+0x46/0x60=
=5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa02063c7=3E=5D=20=
=3F
=3E=3E=3E=3E=3E xfs=5Ftrans=5Fread=5Fbuf+0x197/=
0x410 =5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff8152a61d=3E=5D
=3E=3E=3E=3E=3E wait=5Ffor=5Fcompletion+0x1d/0x=
20
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa020ff5b=3E=5D
=3E=3E=3E=3E=3E xfs=5Fbuf=5Fiowait+0x9b/0x100=
=5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa02063c7=3E=5D=20=
=3F
=3E=3E=3E=3E=3E xfs=5Ftrans=5Fread=5Fbuf+0x197/=
0x410 =5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa0210a76=3E=5D
=3E=3E=3E=3E=3E =5Fxfs=5Fbuf=5Fread+0x46/0x60=
=5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa0210b3b=3E=5D
=3E=3E=3E=3E=3E xfs=5Fbuf=5Fread+0xab/0x100=20=
=5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa02063c7=3E=5D
=3E=3E=3E=3E=3E xfs=5Ftrans=5Fread=5Fbuf+0x197/=
0x410 =5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa01ee6a4=3E=5D
=3E=3E=3E=3E=3E xfs=5Fimap=5Fto=5Fbp+0x54/0x130=
=5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa01f077b=3E=5D
=3E=3E=3E=3E=3E xfs=5Firead+0x7b/0x1b0 =5Bxfs=
=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff811ab77e=3E=5D=20=
=3F
=3E=3E=3E=3E=3E inode=5Finit=5Falways+0x11e/0x1=
c0
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa01eb5ee=3E=5D
=3E=3E=3E=3E=3E xfs=5Figet+0x27e/0x6e0 =5Bxfs=
=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa01eae1d=3E=5D=20=
=3F
=3E=3E=3E=3E=3E xfs=5Fiunlock+0x5d/0xd0 =5Bxfs=
=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa0209366=3E=5D
=3E=3E=3E=3E=3E xfs=5Flookup+0xc6/0x110 =5Bxfs=
=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa0216024=3E=5D
=3E=3E=3E=3E=3E xfs=5Fvn=5Flookup+0x54/0xa0=20=
=5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff8119dc65=3E=5D do=
=5Flookup+0x1a5/0x230
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff8119e8f4=3E=5D
=3E=3E=3E=3E=3E =5F=5Flink=5Fpath=5Fwalk+0x7a4/=
0x1000
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff811738e7=3E=5D=20=
=3F
=3E=3E=3E=3E=3E cache=5Fgrow+0x217/0x320
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff8119f40a=3E=5D pa=
th=5Fwalk+0x6a/0xe0
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff8119f61b=3E=5D
=3E=3E=3E=3E=3E filename=5Flookup+0x6b/0xc0
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff811a0747=3E=5D
=3E=3E=3E=3E=3E user=5Fpath=5Fat+0x57/0xa0
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa0204e74=3E=5D=20=
=3F
=3E=3E=3E=3E=3E =5Fxfs=5Ftrans=5Fcommit+0x214/0=
x2a0 =5Bxfs=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffffa01eae3e=3E=5D=20=
=3F
=3E=3E=3E=3E=3E xfs=5Fiunlock+0x7e/0xd0 =5Bxfs=
=5D
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff81193bc0=3E=5D vf=
s=5Ffstatat+0x50/0xa0
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff811aaf5d=3E=5D=20=
=3F
=3E=3E=3E=3E=3E touch=5Fatime+0x14d/0x1a0
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff81193d3b=3E=5D vf=
s=5Fstat+0x1b/0x20
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff81193d64=3E=5D sy=
s=5Fnewstat+0x24/0x50
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff810e5c87=3E=5D=20=
=3F
=3E=3E=3E=3E=3E audit=5Fsyscall=5Fentry+0x1d7/0=
x200
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff810e5a7e=3E=5D=20=
=3F
=3E=3E=3E=3E=3E =5F=5Faudit=5Fsyscall=5Fexit+0x=
25e/0x290
=3E=3E=3E=3E=3E Mar 12 23=3A05=3A16 static1 ker=
nel=3A
=3E=3E=3E=3E=3E =5B=3Cffffffff8100b072=3E=5D
=3E=3E=3E=3E=3E system=5Fcall=5Ffastpath+0x16/0=
x1b
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E I am wondering if my volume setting=
s are
=3E=3E=3E=3E=3E causing this=2E Can anyone with mo=
re
=3E=3E=3E=3E=3E knowledge take a look and let me kn=
ow=3A
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E network=2Eremote-dio=3A on
=3E=3E=3E=3E=3E performance=2Estat-prefetch=3A=
off
=3E=3E=3E=3E=3E performance=2Eio-cache=3A off=
=3E=3E=3E=3E=3E performance=2Eread-ahead=3A off=
=3E=3E=3E=3E=3E performance=2Equick-read=3A off=
=3E=3E=3E=3E=3E nfs=2Eexport-volumes=3A on
=3E=3E=3E=3E=3E network=2Eping-timeout=3A 20
=3E=3E=3E=3E=3E cluster=2Eself-heal-readdir-siz=
e=3A 64KB
=3E=3E=3E=3E=3E cluster=2Equorum-type=3A auto=
=3E=3E=3E=3E=3E cluster=2Edata-self-heal-algori=
thm=3A diff
=3E=3E=3E=3E=3E cluster=2Eself-heal-window-size=
=3A 8
=3E=3E=3E=3E=3E cluster=2Eheal-timeout=3A 500=
=3E=3E=3E=3E=3E cluster=2Eself-heal-daemon=3A o=
n
=3E=3E=3E=3E=3E cluster=2Eentry-self-heal=3A on=
=3E=3E=3E=3E=3E cluster=2Edata-self-heal=3A on=
=3E=3E=3E=3E=3E cluster=2Emetadata-self-heal=3A=
on
=3E=3E=3E=3E=3E cluster=2Ereaddir-optimize=3A o=
n
=3E=3E=3E=3E=3E cluster=2Ebackground-self-heal-=
count=3A 20
=3E=3E=3E=3E=3E cluster=2Erebalance-stats=3A on=
=3E=3E=3E=3E=3E cluster=2Emin-free-disk=3A 5=25=
=3E=3E=3E=3E=3E cluster=2Eeager-lock=3A enable=
=3E=3E=3E=3E=3E storage=2Eowner-uid=3A 36
=3E=3E=3E=3E=3E storage=2Eowner-gid=3A 36
=3E=3E=3E=3E=3E auth=2Eallow=3A*
=3E=3E=3E=3E=3E user=2Ecifs=3A disable
=3E=3E=3E=3E=3E cluster=2Eserver-quorum-ratio=
=3A 51=25
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E Many Thanks=2C Alastair
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E
=3E=3E=3E=3E=3E =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
=3E=3E=3E=3E=3E Users mailing list
=3E=3E=3E=3E=3E Users=40ovirt=2Eorg =3Cmailto=3AUse=
rs=40ovirt=2Eorg=3E
=3E=3E=3E=3E=3E http=3A//lists=2Eovirt=2Eorg/mailma=
n/listinfo/users
=3E=3E=3E=3E
=3E=3E=3E=3E
=3E=3E=3E=3E =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
=3E=3E=3E=3E Users mailing list
=3E=3E=3E=3E Users=40ovirt=2Eorg =3Cmailto=3AUsers=
=40ovirt=2Eorg=3E
=3E=3E=3E=3E http=3A//lists=2Eovirt=2Eorg/mailman/l=
istinfo/users
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=3E=3E
=3E=3E =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F
=3E=3E Users mailing list
=3E=3E Users=40ovirt=2Eorg =3Cmailto=3AUsers=40ovirt=2Eorg=3E
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=3E
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=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
=3E Users mailing list
=3E Users=40ovirt=2Eorg
=3E http=3A//lists=2Eovirt=2Eorg/mailman/listinfo/users
Met vriendelijke groet=2C With kind regards=2C
Jorick Astrego
Netbulae Virtualization Experts=20
----------------
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08198180
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NL821234584B01
----------------
--------------030308050700080206070001
Content-Type: text/html;
charset="windows-1252"
Content-Transfer-Encoding: quoted-printable
=3Chtml=3E
=3Chead=3E
=3Cmeta content=3D=22text/html=3B charset=3Dwindows-1252=22
http-equiv=3D=22Content-Type=22=3E
=3C/head=3E
=3Cbody bgcolor=3D=22=23FFFFFF=22 text=3D=22=23000000=22=3E
=3Cbr=3E
=3Cbr=3E
=3Cdiv class=3D=22moz-cite-prefix=22=3EOn 04/03/2015 10=3A04 PM=2C Alas=
tair Neil
wrote=3A=3Cbr=3E
=3C/div=3E
=3Cblockquote
cite=3D=22mid=3ACA+SarwqNuvVGUDDjhDRbNii-foMGAyaVibxyMGM5AEPzRkDu+w=40mail=
=2Egmail=2Ecom=22
type=3D=22cite=22=3E
=3Cdiv dir=3D=22ltr=22=3EAny follow up on this=3F
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3Cdiv=3E=A0Are there known issues using a replica 3 glsuter datast=
ore
with lvm thin provisioned bricks=3F=3C/div=3E
=3C/div=3E
=3Cdiv class=3D=22gmail=5Fextra=22=3E=3Cbr=3E
=3Cdiv class=3D=22gmail=5Fquote=22=3EOn 20 March 2015 at 15=3A22=2C=
Alastair
Neil =3Cspan dir=3D=22ltr=22=3E=26lt=3B=3Ca moz-do-not-send=3D=22=
true=22
href=3D=22mailto=3Aajneil=2Etech=40gmail=2Ecom=22 target=3D=
=22=5Fblank=22=3Eajneil=2Etech=40gmail=2Ecom=3C/a=3E=26gt=3B=3C/span=3E
wrote=3A=3Cbr=3E
=3Cblockquote class=3D=22gmail=5Fquote=22 style=3D=22margin=3A0 0=
0
=2E8ex=3Bborder-left=3A1px =23ccc solid=3Bpadding-left=3A1ex=22=
=3E
=3Cdiv dir=3D=22ltr=22=3E
=3Cdiv=3ECentOS 6=2E6=3C/div=3E
=3Cspan class=3D=22=22=3E
=3Cdiv=3E=A0=3C/div=3E
=3Cblockquote class=3D=22gmail=5Fquote=22
style=3D=22font-size=3A13px=3Bmargin=3A0px 0px 0px
0=2E8ex=3Bborder-left-width=3A1px=3Bborder-left-color=3Argb=28204=2C204=2C2=
04=29=3Bborder-left-style=3Asolid=3Bpadding-left=3A1ex=22=3E=A0vdsm-4=2E16=
=2E10-8=2Egitc937927=2Eel6=3Cbr=3E
glusterfs-3=2E6=2E2-1=2Eel6=3Cbr=3E
2=2E6=2E32 - 504=2E8=2E1=2Eel6=2Ex86=5F64=3C/blockquote=
=3E
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3C/span=3E
=3Cdiv=3Emoved to 3=2E6 specifically to get the snapshotting=
feature=2C hence my desire to migrate to thinly
provisioned lvm bricks=2E=3C/div=3E
=3C/div=3E
=3C/blockquote=3E
=3C/div=3E
=3C/div=3E
=3C/blockquote=3E
=3Cbr=3E
=3Cbr=3E
Well on the glusterfs mailinglist there have been discussions=3A=3Cbr=
=3E
=3Cbr=3E
=3Cbr=3E
=3Cblockquote type=3D=22cite=22=3E3=2E6=2E2 is a major release and intr=
oduces some
new features in cluster wide concept=2E Additionally it is not
stable yet=2E=3C/blockquote=3E
=3Cbr=3E
=3Cbr=3E
=3Cbr=3E
=3Cbr=3E
=3Cblockquote
cite=3D=22mid=3ACA+SarwqNuvVGUDDjhDRbNii-foMGAyaVibxyMGM5AEPzRkDu+w=40mail=
=2Egmail=2Ecom=22
type=3D=22cite=22=3E
=3Cdiv class=3D=22gmail=5Fextra=22=3E
=3Cdiv class=3D=22gmail=5Fquote=22=3E
=3Cblockquote class=3D=22gmail=5Fquote=22 style=3D=22margin=3A0 0=
0
=2E8ex=3Bborder-left=3A1px =23ccc solid=3Bpadding-left=3A1ex=22=
=3E
=3Cdiv dir=3D=22ltr=22=3E
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3Cdiv class=3D=22gmail=5Fextra=22=3E=3Cbr=3E
=3Cdiv class=3D=22gmail=5Fquote=22=3EOn 20 March 2015 at 14=
=3A57=2C
Darrell Budic =3Cspan dir=3D=22ltr=22=3E=26lt=3B=3Ca
moz-do-not-send=3D=22true=22
href=3D=22mailto=3Abudic=40onholyground=2Ecom=22
target=3D=22=5Fblank=22=3Ebudic=40onholyground=2Ecom=
=3C/a=3E=26gt=3B=3C/span=3E
wrote=3A=3Cbr=3E
=3Cblockquote class=3D=22gmail=5Fquote=22 style=3D=22marg=
in=3A0 0 0
=2E8ex=3Bborder-left=3A1px =23ccc solid=3Bpadding-left=
=3A1ex=22=3E
=3Cdiv style=3D=22word-wrap=3Abreak-word=22=3EWhat vers=
ion of
gluster are you running on these=3F
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3Cdiv=3EI=92ve seen high load during heals bounce my=
hosted engine around due to overall system load=2C=
but never pause anything else=2E Cent 7 combo
storage/host systems=2C gluster 3=2E5=2E2=2E=3C/div=
=3E
=3Cdiv=3E
=3Cdiv=3E
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3Cdiv=3E=3Cbr=3E
=3Cdiv=3E
=3Cblockquote type=3D=22cite=22=3E
=3Cdiv=3EOn Mar 20=2C 2015=2C at 9=3A57 AM=
=2C
Alastair Neil =26lt=3B=3Ca
moz-do-not-send=3D=22true=22
href=3D=22mailto=3Aajneil=2Etech=40gmai=
l=2Ecom=22
target=3D=22=5Fblank=22=3Eajneil=2Etech=
=40gmail=2Ecom=3C/a=3E=26gt=3B
wrote=3A=3C/div=3E
=3Cbr=3E
=3Cdiv=3E
=3Cdiv dir=3D=22ltr=22=3EPranith
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3Cdiv=3EI have run a pretty
straightforward test=2E=A0 I created=
a
two brick 50 G replica volume with
normal lvm bricks=2C and installed
two servers=2C one centos 6=2E6 and=
one centos 7=2E0=2E=A0 I kicked off=
bonnie++ on both to generate some
file system activity and then made
the volume replica 3=2E=A0 I saw no=
issues on the servers=2E =A0=A0=3C/di=
v=3E
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3Cdiv=3ENot clear if this is a
sufficiently rigorous test and the
Volume I have had issues on is a
3TB volume =A0with about 2TB used=2E=
=3C/div=3E
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3Cdiv=3E-Alastair=3C/div=3E
=3Cdiv=3E=3Cbr=3E
=3C/div=3E
=3Cdiv class=3D=22gmail=5Fextra=22=3E=
=3Cbr=3E
=3Cdiv class=3D=22gmail=5Fquote=22=3E=
On 19
March 2015 at 12=3A30=2C Alastair=
Neil =3Cspan dir=3D=22ltr=22=3E=26l=
t=3B=3Ca
moz-do-not-send=3D=22true=22
href=3D=22mailto=3Aajneil=2Etec=
h=40gmail=2Ecom=22
target=3D=22=5Fblank=22=3Eajnei=
l=2Etech=40gmail=2Ecom=3C/a=3E=26gt=3B=3C/span=3E
wrote=3A=3Cbr=3E
=3Cblockquote class=3D=22gmail=5Fqu=
ote=22
style=3D=22margin=3A0 0 0
=2E8ex=3Bborder-left=3A1px =23ccc=
solid=3Bpadding-left=3A1ex=22=3E=
=3Cdiv dir=3D=22ltr=22=3EI don=27=
t think I
have the resources to test
it meaningfully=2E=A0 I have
about 50 vms on my primary
storage domain=2E=A0 I might be=
able to set up a small 50 GB
volume and provision 2 or 3
vms running test loads but
I=27m not sure it would be
comparable=2E=A0 I=27ll give it=
a
try and let you know if I
see similar behaviour=2E=3C/div=
=3E
=3Cdiv=3E
=3Cdiv=3E
=3Cdiv class=3D=22gmail=5Fext=
ra=22=3E=3Cbr=3E
=3Cdiv class=3D=22gmail=5Fq=
uote=22=3EOn
19 March 2015 at
11=3A34=2C Pranith Kumar=
Karampuri =3Cspan
dir=3D=22ltr=22=3E=26lt=
=3B=3Ca
moz-do-not-send=3D=22=
true=22
href=3D=22mailto=3Apkarampu=40redhat=2Ecom=22 target=3D=22=5Fblank=22=3Epka=
rampu=40redhat=2Ecom=3C/a=3E=26gt=3B=3C/span=3E
wrote=3A=3Cbr=3E
=3Cblockquote
class=3D=22gmail=5Fquot=
e=22
style=3D=22margin=3A0 0=
0
=2E8ex=3Bborder-left=3A=
1px
=23ccc
solid=3Bpadding-left=3A=
1ex=22=3E
=3Cdiv text=3D=22=23000=
000=22
bgcolor=3D=22=23FFFFF=
F=22=3E
Without thinly
provisioned lvm=2E=3C=
span=3E=3Cfont
color=3D=22=23888888=22=3E=3Cbr=3E
=3Cbr=3E
Pranith=3C/font=
=3E=3C/span=3E
=3Cdiv=3E
=3Cdiv=3E=3Cbr=3E=
=3Cdiv=3EOn
03/19/2015
08=3A01 PM=2C
Alastair Neil
wrote=3A=3Cbr=3E=
=3C/div=3E
=3Cblockquote
type=3D=22cite=22=
=3E
=3Cdiv dir=3D=22l=
tr=22=3Edo
you mean raw
partitions as
bricks or
simply with
out thin
provisioned
lvm=3F
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3C/div=3E
=3Cdiv
class=3D=22gmail=
=5Fextra=22=3E=3Cbr=3E
=3Cdiv
class=3D=22gmail=
=5Fquote=22=3EOn
19 March 2015
at 00=3A32=2C
Pranith Kumar
Karampuri =3Cspan=
dir=3D=22ltr=22=
=3E=26lt=3B=3Ca
moz-do-not-send=3D=22true=22 href=3D=22mailto=3Apkarampu=40redhat=2Ecom=22=
target=3D=22=5Fblank=22=3Epkarampu=40redhat=2Ecom=3C/a=3E=26gt=3B=3C/span=
=3E
wrote=3A=3Cbr=3E=
=3Cblockquote
class=3D=22gmail=
=5Fquote=22
style=3D=22margin=
=3A0
0 0
=2E8ex=3Bborder-l=
eft=3A1px
=23ccc
solid=3Bpadding-l=
eft=3A1ex=22=3E
=3Cdiv
text=3D=22=230000=
00=22
bgcolor=3D=22=23FFFFFF=22=3E Could you let me know if you see this problem=
without
lvm as well=3F=3C=
span=3E=3Cfont
color=3D=22=23888888=22=3E=3Cbr=3E
=3Cbr=3E
Pranith=3C/font=
=3E=3C/span=3E
=3Cdiv=3E
=3Cdiv=3E=3Cbr=3E=
=3Cdiv=3EOn
03/18/2015
08=3A25 PM=2C
Alastair Neil
wrote=3A=3Cbr=3E=
=3C/div=3E
=3Cblockquote
type=3D=22cite=22=
=3E
=3Cdiv dir=3D=22l=
tr=22=3EI
am in the
process of
replacing the
bricks with
thinly
provisioned
lvs yes=2E
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3C/div=3E
=3Cdiv
class=3D=22gmail=
=5Fextra=22=3E=3Cbr=3E
=3Cdiv
class=3D=22gmail=
=5Fquote=22=3EOn
18 March 2015
at 09=3A35=2C
Pranith Kumar
Karampuri =3Cspan=
dir=3D=22ltr=22=
=3E=26lt=3B=3Ca
moz-do-not-send=3D=22true=22 href=3D=22mailto=3Apkarampu=40redhat=2Ecom=22=
target=3D=22=5Fblank=22=3Epkarampu=40redhat=2Ecom=3C/a=3E=26gt=3B=3C/span=
=3E
wrote=3A=3Cbr=3E=
=3Cblockquote
class=3D=22gmail=
=5Fquote=22
style=3D=22margin=
=3A0
0 0
=2E8ex=3Bborder-l=
eft=3A1px
=23ccc
solid=3Bpadding-l=
eft=3A1ex=22=3E
=3Cdiv
text=3D=22=230000=
00=22
bgcolor=3D=22=23FFFFFF=22=3E hi=2C=3Cbr=3E
=A0=A0=A0=A0=A0 A=
re you
using thin-lvm
based backend
on which the
bricks are
created=3F=3Cbr=
=3E
=3Cbr=3E
Pranith
=3Cdiv=3E
=3Cdiv=3E=3Cbr=3E=
=3Cdiv=3EOn
03/18/2015
02=3A05 AM=2C
Alastair Neil
wrote=3A=3Cbr=3E=
=3C/div=3E
=3C/div=3E
=3C/div=3E
=3Cblockquote
type=3D=22cite=22=
=3E
=3Cdiv=3E
=3Cdiv=3E
=3Cdiv dir=3D=22l=
tr=22=3EI
have a Ovirt
cluster with 6
VM hosts and 4
gluster nodes=2E=
There are two
virtualisation
clusters one
with two
nehelem nodes
and one with
=A0four
=A0sandybridge
nodes=2E My
master storage
domain is a
GlusterFS
backed by a
replica 3
gluster volume
from 3 of the
gluster
nodes=2E=A0 The=
engine is a
hosted engine
3=2E5=2E1 on 3 of=
the
sandybridge
nodes=2C with
storage
broviede by
nfs from a
different
gluster
volume=2E=A0 All=
the hosts are
CentOS 6=2E6=2E=
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3Cblockquote
class=3D=22gmail=
=5Fquote=22
style=3D=22margin=
=3A0px
0px 0px
0=2E8ex=3Bborder-left-width=3A1px=3Bborder-left-color=3Argb=28204=2C204=2C2=
04=29=3Bborder-left-style=3Asolid=3Bpadding-left=3A1ex=22=3E=A0vdsm-4=2E16=
=2E10-8=2Egitc937927=2Eel6=3Cbr=3E
glusterfs-3=2E6=2E2-1=2Eel6=3Cbr=3E
2=2E6=2E32 -
504=2E8=2E1=2Eel6=
=2Ex86=5F64=3C/blockquote=3E
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3Cdiv=3EProblems=
happen when I
try to add a
new brick or
replace a
brick
eventually the
self heal will
kill the VMs=2E=
In the VM=27s
logs I see
kernel hung
task
messages=2E=A0=3C=
/div=3E
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3Cdiv=3E
=3Cblockquote
class=3D=22gmail=
=5Fquote=22
style=3D=22margin=
=3A0px
0px 0px
0=2E8ex=3Bborder-left-width=3A1px=3Bborder-left-color=3Argb=28204=2C204=2C2=
04=29=3Bborder-left-style=3Asolid=3Bpadding-left=3A1ex=22=3E=3Cfont
face=3D=22monospa=
ce=2C
monospace=22=3EMa=
r
12 23=3A05=3A16=
static1
kernel=3A INFO=3A=
task
nginx=3A1736
blocked for
more than 120
seconds=2E=3Cbr=
=3E
=3C/font=3E=3Cfon=
t
face=3D=22monospa=
ce=2C
monospace=22=3EMa=
r
12 23=3A05=3A16=
static1
kernel=3A =A0=20=
=A0
=A0Not tainted
2=2E6=2E32-504=2E=
3=2E3=2Eel6=2Ex86=5F64
=231=3Cbr=3E
=3C/font=3E=3Cfon=
t
face=3D=22monospa=
ce=2C
monospace=22=3EMa=
r
12 23=3A05=3A16=
static1
kernel=3A =22echo=
0 =26gt=3B
/proc/sys/kernel/=
hung=5Ftask=5Ftimeout=5Fsecs=22
disables this
message=2E=3Cbr=
=3E
=3C/font=3E=3Cfon=
t
face=3D=22monospa=
ce=2C
monospace=22=3EMa=
r
12 23=3A05=3A16=
static1
kernel=3A nginx=
=A0 =A0 =A0 =A0 D=
0000000000000001=
=A0 =A0 0 =A01736=
=A0
1735
0x00000080=3Cbr=
=3E
=3C/font=3E=3Cfon=
t
face=3D=22monospa=
ce=2C
monospace=22=3EMa=
r
12 23=3A05=3A16=
static1
kernel=3A
ffff8800778b17a8=
0000000000000082=
0000000000000000=
00000000000126c0=3Cbr=3E
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12 23=3A05=3A16=
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ff810e5c87=26gt=3B=5D
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12 23=3A05=3A16=
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12 23=3A05=3A16=
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=3C/div=3E
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3Cdiv=3E=3Cbr=3E=
=3C/div=3E
=3Cdiv=3EI am
wondering if
my volume
settings are
causing this=2E=
=A0
Can anyone
with more
knowledge take
a look and let
me know=3A=3C/div=
=3E
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=3C/div=3E
=3Cdiv=3E
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class=3D=22gmail=
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style=3D=22margin=
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0px 0px
0=2E8ex=3Bborder-left-width=3A1px=3Bborder-left-color=3Argb=28204=2C204=2C2=
04=29=3Bborder-left-style=3Asolid=3Bpadding-left=3A1ex=22=3E=3Cfont
face=3D=22monospa=
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monospace=22=3Ene=
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on=3Cbr=3E
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rformance=2Estat-prefetch=3A
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face=3D=22monospa=
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face=3D=22monospa=
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monospace=22=3Epe=
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off=3Cbr=3E
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face=3D=22monospa=
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monospace=22=3Ene=
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20=3Cbr=3E
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t
face=3D=22monospa=
ce=2C
monospace=22=3Ecl=
uster=2Eself-heal-readdir-size=3A
64KB=3Cbr=3E
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face=3D=22monospa=
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monospace=22=3Ecl=
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face=3D=22monospa=
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diff=3Cbr=3E
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face=3D=22monospa=
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face=3D=22monospa=
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face=3D=22monospa=
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face=3D=22monospa=
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monospace=22=3Ecl=
uster=2Edata-self-heal=3A
on=3Cbr=3E
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t
face=3D=22monospa=
ce=2C
monospace=22=3Ecl=
uster=2Emetadata-self-heal=3A
on=3Cbr=3E
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face=3D=22monospa=
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monospace=22=3Ecl=
uster=2Ereaddir-optimize=3A
on=3Cbr=3E
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t
face=3D=22monospa=
ce=2C
monospace=22=3Ecl=
uster=2Ebackground-self-heal-count=3A
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face=3D=22monospa=
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face=3D=22monospa=
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face=3D=22monospa=
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face=3D=22monospa=
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