Re: [RadosGW] Performance for Concurrency Connections

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Hi Yehuda

I run a similar setup like Hugo

Radosgw is on a dedicated host, no OSD's on the gw. There is no socket on my radosgw either apart from 
unix  2      [ ACC ]     STREAM     LISTENING     10029    /tmp/radosgw.sock

I changed PG's of .rgw, .rgw.bucket to 1000
Added rgw cache enabled = false to client.radosgw01.hostname in ceph.conf

No change in terms of performance

> -----Original Message-----
> From: Yehuda Sadeh [mailto:yehuda@xxxxxxxxxxx]
> Sent: Donnerstag, 12. September 2013 06:38
> To: Kuo Hugo
> Cc: Fuchs, Andreas (SwissTXT); ceph-users@xxxxxxxxxxxxxx
> Subject: Re:  [RadosGW] Performance for Concurrency
> Connections
> 
> On Wed, Sep 11, 2013 at 9:34 PM, Kuo Hugo <tonytkdk@xxxxxxxxx> wrote:
> > Hi Yehuda,
> >
> > Here's my ceph.conf
> >
> > root@p01:/tmp# cat /etc/ceph/ceph.conf [global] fsid =
> > 6e05675c-f545-4d88-9784-ea56ceda750e
> > mon_initial_members = s01, s02, s03
> > mon_host = 192.168.2.61,192.168.2.62,192.168.2.63
> > auth_supported = cephx
> > osd_journal_size = 1024
> > filestore_xattr_use_omap = true
> >
> > [client.radosgw.gateway]
> > host = p01
> > keyring = /etc/ceph/keyring.radosgw.gateway rgw_socket_path =
> > /tmp/radosgw.sock log_file = /var/log/ceph/radosgw.log
> > rgw_thread_pool_size = 200
> >
> > Depends on my conf, the /tmp/radosgw.sock was created while starting
> > radosgw service.
> > So that I tried to show up config by :
> >
> > root@p01:/tmp# ceph --admin-daemon /tmp/radosgw.sock config show
> read
> > only got 0 bytes of 4 expected for response length; invalid command?
> >
> > Is it a bug or operation mistake ?
> 
> You're connecting to the wrong socket. You need to connect to the admin
> socket, not to the socket that used for web server <-> gateway
> communication. That socket by default should reside in /var/run/ceph.
> 
> 
> >
> > root@p01:/tmp# radosgw-admin -v
> > ceph version 0.61.8 (a6fdcca3bddbc9f177e4e2bf0d9cdd85006b028b)
> >
> >
> > Appreciate ~
> >
> >
> > +Hugo Kuo+
> > (+886) 935004793
> >
> >
> > 2013/9/11 Yehuda Sadeh <yehuda@xxxxxxxxxxx>
> >>
> >> On Wed, Sep 11, 2013 at 7:57 AM, Kuo Hugo <tonytkdk@xxxxxxxxx>
> wrote:
> >> >
> >> > Hi Yehuda,
> >> >
> >> > I tried ... a question for modifying param.
> >> > How to make it effect to the RadosGW ?   is it by restarting radosgw ?
> >> > The value was set to 200. I'm not sure if it's applied to RadosGW
> >> > or not.
> >> >
> >> > Is there a way to check the runtime value of "rgw thread pool size" ?
> >> >
> >>
> >> You can do it through the admin socket interface.
> >> Try running something like:
> >> $ ceph --admin-daemon /var/run/ceph/radosgw.asok config show
> >>
> >> $ ceph --admin-daemon /var/run/ceph/radosgw.asok config set
> >> rgw_thread_pool_size 200
> >>
> >>
> >> The path to the admin socket may be different, and in any case can be
> >> set through the 'admin socket' variable in ceph.conf.
> >>
> >> Yehuda
> >>
> >>
> >> >
> >> >
> >> > 2013/9/11 Yehuda Sadeh <yehuda@xxxxxxxxxxx>
> >> >>
> >> >> Try modifing the 'rgw thread pool size' param in your ceph.conf.
> >> >> By default it's 100, so try increasing it and see if it affects anything.
> >> >>
> >> >> Yehuda
> >> >>
> >> >>
> >> >> On Wed, Sep 11, 2013 at 3:14 AM, Kuo Hugo <tonytkdk@xxxxxxxxx>
> wrote:
> >> >>>
> >> >>> For ref :
> >> >>>
> >> >>> Benchmark result
> >> >>>
> >> >>> Could someone help me to improve the performance of high
> >> >>> concurrency use case ?
> >> >>>
> >> >>> Any suggestion would be excellent.!
> >> >>>
> >> >>> +Hugo Kuo+
> >> >>> (+886) 935004793
> >> >>>
> >
> >
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