* memory consumption of multipathd after Upgrade SLES 10 SP2 -> SLES 11
@ 2009-10-16 15:20 Sebastian Reitenbach
2009-10-19 6:16 ` Hannes Reinecke
0 siblings, 1 reply; 4+ messages in thread
From: Sebastian Reitenbach @ 2009-10-16 15:20 UTC (permalink / raw)
To: dm-devel
Hi,
I use multipath tools to manage the multiple ways through the SAN connected
via FC. The server sees two paths per LUN. There are 15 LUNs presented to the
server.
I upgraded two server to SLES 11, installed latest patches, running kernel:
Linux server1 2.6.27.29-0.1-xen #1 SMP 2009-08-15 17:53:59 +0200 x86_64 x86_64
x86_64 GNU/Linux
multipath-tools-0.4.8-40.4.1
There I recognized a fairly large amount of memory used by multipathd:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5367 root RT 0 238m 140m 2804 S 0 28.1 0:34.70 multipathd
I see the huge memory consumption on both of the servers.
On a different server, not yet upgraded, running SLES 10 SP2, with different
SAN storages applied, there I run kernel:
Linux server2 2.6.16.60-0.34-xen #1 SMP Fri Jan 16 14:59:01 UTC 2009 x86_64
x86_64 x86_64 GNU/Linux
with multipath tools:
multipath-tools-0.4.7-34.40
There I have 20 LUNs presented, and the server sees 4 paths per LUN, I in top
a much fewer memory consumption:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4796 root RT 0 11928 4808 2220 S 0 1.6 0:01.37 multipathd
However, both of the servers running SLES 11 work fine so far, no "errors"
recognized. I still wonder whether the large memory consumption is correct, as
I expected sth. similar as on the SLES10 SP2 hosts.
Below the configuration file I use on the SLES 11 servers.
If I need to provide more information, please let me know.
cheers
Sebastian
/etc/init.d/multipath.conf file on the SLES 11 servers.
defaults {
udev_dir /dev
verbosity 2
polling_interval 10
selector "round-robin 0"
path_grouping_policy group_by_serial
getuid_callout "/lib/udev/scsi_id -g -u -d /dev/%n"
path_checker tur
rr_min_io 100
max_fds 8192
rr_weight priorities
failback immediate
no_path_retry fail
user_friendly_names yes
}
blacklist {
devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*|sda"
devnode "^hd[a-z][[0-9]*]"
devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
}
blacklist_exceptions {
devnode "^sda[a-z]+"
}
multipaths {
multipath {
wwid 3600508b4001074ab0000c000014e0000
alias ONE
}
multipath {
wwid 3600508b4001074ab0000c000014b0000
alias TWO
}
multipath {
wwid 3600508b4001074ab0000c00001960000
alias THREE
}
multipath {
wwid 3600508b4001074ab0000c00001be0000
alias FOUR
}
multipath {
wwid 3600a0b800048b31000000fdc4a0809ff
alias FIVE
}
multipath {
wwid 3600a0b800048b31000000fb949f9627c
alias SIX
}
multipath {
wwid 3600a0b800048b31000000fc249f96349
alias SEVEN
}
multipath {
wwid 3600a0b800048b31000000fbc49f962b0
alias EIGHT
}
multipath {
wwid 3600a0b800048b31000000fc049f96308
alias NINE
}
multipath {
wwid 3600508b4001074ab0000c00000a70000
alias TEN
}
multipath {
wwid 3600a0b800048b310000017c64a48ee34
alias ELEVEN
}
multipath {
wwid 3600a0b800048b310000017c44a48ec5a
alias TWELVE
}
multipath {
wwid 3600a0b800048b310000017a04a4058d0
alias THIRTEEN
}
multipath {
wwid 3600a0b800048b3100000179d4a40589e
alias FOURTEEN
}
multipath {
wwid 3600a0b800048b310000017c94a48ee57
alias FIVETEEN
}
}
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: memory consumption of multipathd after Upgrade SLES 10 SP2 -> SLES 11
2009-10-16 15:20 memory consumption of multipathd after Upgrade SLES 10 SP2 -> SLES 11 Sebastian Reitenbach
@ 2009-10-19 6:16 ` Hannes Reinecke
2009-10-19 7:04 ` Sebastian Reitenbach
0 siblings, 1 reply; 4+ messages in thread
From: Hannes Reinecke @ 2009-10-19 6:16 UTC (permalink / raw)
To: device-mapper development
Sebastian Reitenbach wrote:
> Hi,
>
> I use multipath tools to manage the multiple ways through the SAN connected
> via FC. The server sees two paths per LUN. There are 15 LUNs presented to the
> server.
>
> I upgraded two server to SLES 11, installed latest patches, running kernel:
> Linux server1 2.6.27.29-0.1-xen #1 SMP 2009-08-15 17:53:59 +0200 x86_64 x86_64
> x86_64 GNU/Linux
>
> multipath-tools-0.4.8-40.4.1
>
> There I recognized a fairly large amount of memory used by multipathd:
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 5367 root RT 0 238m 140m 2804 S 0 28.1 0:34.70 multipathd
>
> I see the huge memory consumption on both of the servers.
>
>
> On a different server, not yet upgraded, running SLES 10 SP2, with different
> SAN storages applied, there I run kernel:
> Linux server2 2.6.16.60-0.34-xen #1 SMP Fri Jan 16 14:59:01 UTC 2009 x86_64
> x86_64 x86_64 GNU/Linux
> with multipath tools:
> multipath-tools-0.4.7-34.40
> There I have 20 LUNs presented, and the server sees 4 paths per LUN, I in top
> a much fewer memory consumption:
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 4796 root RT 0 11928 4808 2220 S 0 1.6 0:01.37 multipathd
>
>
> However, both of the servers running SLES 11 work fine so far, no "errors"
> recognized. I still wonder whether the large memory consumption is correct, as
> I expected sth. similar as on the SLES10 SP2 hosts.
> Below the configuration file I use on the SLES 11 servers.
>
This is a known regression with SLES11. Please update to the latest
maintenance release.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: memory consumption of multipathd after Upgrade SLES 10 SP2 -> SLES 11
2009-10-19 6:16 ` Hannes Reinecke
@ 2009-10-19 7:04 ` Sebastian Reitenbach
2009-10-19 11:14 ` Sebastian Reitenbach
0 siblings, 1 reply; 4+ messages in thread
From: Sebastian Reitenbach @ 2009-10-19 7:04 UTC (permalink / raw)
To: device-mapper development
Hi,
On Monday 19 October 2009 08:16:51 am Hannes Reinecke wrote:
> Sebastian Reitenbach wrote:
> > Hi,
> >
> > I use multipath tools to manage the multiple ways through the SAN
> > connected via FC. The server sees two paths per LUN. There are 15 LUNs
> > presented to the server.
> >
> > I upgraded two server to SLES 11, installed latest patches, running
> > kernel: Linux server1 2.6.27.29-0.1-xen #1 SMP 2009-08-15 17:53:59 +0200
> > x86_64 x86_64 x86_64 GNU/Linux
> >
> > multipath-tools-0.4.8-40.4.1
> >
> > There I recognized a fairly large amount of memory used by multipathd:
> > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> > 5367 root RT 0 238m 140m 2804 S 0 28.1 0:34.70 multipathd
> >
> > I see the huge memory consumption on both of the servers.
> >
> >
> > On a different server, not yet upgraded, running SLES 10 SP2, with
> > different SAN storages applied, there I run kernel:
> > Linux server2 2.6.16.60-0.34-xen #1 SMP Fri Jan 16 14:59:01 UTC 2009
> > x86_64 x86_64 x86_64 GNU/Linux
> > with multipath tools:
> > multipath-tools-0.4.7-34.40
> > There I have 20 LUNs presented, and the server sees 4 paths per LUN, I in
> > top a much fewer memory consumption:
> > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> > 4796 root RT 0 11928 4808 2220 S 0 1.6 0:01.37 multipathd
> >
> >
> > However, both of the servers running SLES 11 work fine so far, no
> > "errors" recognized. I still wonder whether the large memory consumption
> > is correct, as I expected sth. similar as on the SLES10 SP2 hosts.
> > Below the configuration file I use on the SLES 11 servers.
>
> This is a known regression with SLES11. Please update to the latest
> maintenance release.
I thought I have all available updates installed, need to check, refresh my
update sources, and see again whether updates are available.
thanks for pointing out
Sebastian
>
> Cheers,
>
> Hannes
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: memory consumption of multipathd after Upgrade SLES 10 SP2 -> SLES 11
2009-10-19 7:04 ` Sebastian Reitenbach
@ 2009-10-19 11:14 ` Sebastian Reitenbach
0 siblings, 0 replies; 4+ messages in thread
From: Sebastian Reitenbach @ 2009-10-19 11:14 UTC (permalink / raw)
To: dm-devel
Hi,
On Monday 19 October 2009 09:04:11 am Sebastian Reitenbach wrote:
> Hi,
>
> On Monday 19 October 2009 08:16:51 am Hannes Reinecke wrote:
> > Sebastian Reitenbach wrote:
> > > Hi,
> > >
> > > I use multipath tools to manage the multiple ways through the SAN
> > > connected via FC. The server sees two paths per LUN. There are 15 LUNs
> > > presented to the server.
> > >
> > > I upgraded two server to SLES 11, installed latest patches, running
> > > kernel: Linux server1 2.6.27.29-0.1-xen #1 SMP 2009-08-15 17:53:59
> > > +0200 x86_64 x86_64 x86_64 GNU/Linux
> > >
> > > multipath-tools-0.4.8-40.4.1
> > >
> > > There I recognized a fairly large amount of memory used by multipathd:
> > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> > > 5367 root RT 0 238m 140m 2804 S 0 28.1 0:34.70 multipathd
> > >
> > > I see the huge memory consumption on both of the servers.
> > >
> > >
> > > On a different server, not yet upgraded, running SLES 10 SP2, with
> > > different SAN storages applied, there I run kernel:
> > > Linux server2 2.6.16.60-0.34-xen #1 SMP Fri Jan 16 14:59:01 UTC 2009
> > > x86_64 x86_64 x86_64 GNU/Linux
> > > with multipath tools:
> > > multipath-tools-0.4.7-34.40
> > > There I have 20 LUNs presented, and the server sees 4 paths per LUN, I
> > > in top a much fewer memory consumption:
> > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> > > 4796 root RT 0 11928 4808 2220 S 0 1.6 0:01.37 multipathd
> > >
> > >
> > > However, both of the servers running SLES 11 work fine so far, no
> > > "errors" recognized. I still wonder whether the large memory
> > > consumption is correct, as I expected sth. similar as on the SLES10 SP2
> > > hosts. Below the configuration file I use on the SLES 11 servers.
> >
> > This is a known regression with SLES11. Please update to the latest
> > maintenance release.
>
> I thought I have all available updates installed, need to check, refresh my
> update sources, and see again whether updates are available.
Not perfectly sure what you mean with latest maintenance release. However, I
just synched again the SLES 11 updates from:
https://nu.novell.com/repo/\$RCE/SLES11-Updates/sle-11-x86_64/
however, no new multipath-tools or kernel update is available.
Do you know which version is supposed to work?
regards
Sebastian
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2009-10-19 11:14 UTC | newest]
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2009-10-16 15:20 memory consumption of multipathd after Upgrade SLES 10 SP2 -> SLES 11 Sebastian Reitenbach
2009-10-19 6:16 ` Hannes Reinecke
2009-10-19 7:04 ` Sebastian Reitenbach
2009-10-19 11:14 ` Sebastian Reitenbach
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