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From: Adam Nielsen <a.nielsen@shikadi.net>
To: ceph-devel@vger.kernel.org
Subject: Re: Newbie questions
Date: Sun, 07 Oct 2012 10:08:17 +1000	[thread overview]
Message-ID: <k4qh5i$l2a$1@ger.gmane.org> (raw)
In-Reply-To: <itxvbcnv59ub7io20vp9jwxp.1349537492870@email.android.com>

> The problem you are describing is called split-brain.  Ceph has an odd
> number of monitors and quorum is required before objects can be served.
> The partition with the smaller number of monitors will wait harmlessly
> until connectivity is reestablished .

Ah right, that makes sense.  Is this set in stone or can it be configured? 
I'm just thinking that in this scenario it could be beneficial to allow 
read-only access from the partition with the smaller number of monitors, if 
there are also clients that can only see those hosts.  (For example, a 
business with two sites, and the link between them goes down, so client PCs 
can only see their site-local servers.)

Thanks,
Adam.


  reply	other threads:[~2012-10-07  0:08 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-06 15:31 Newbie questions Mark Kampe
2012-10-07  0:08 ` Adam Nielsen [this message]
2012-10-07  0:34   ` Mark Kampe
  -- strict thread matches above, loose matches on Subject: below --
2021-06-18 16:31 Ethy H. Brito
2021-06-18 17:40 ` Jesper Dangaard Brouer
2021-06-18 20:37   ` Ethy H. Brito
2021-06-22  1:28     ` Ethy H. Brito
2021-06-22  9:18       ` Jesper Dangaard Brouer
2015-08-31  0:30 newbie questions Pierre-Louis Bossart
2015-08-31  7:43 ` Johannes Berg
2015-08-31 12:50   ` Pierre-Louis Bossart
2015-08-31 12:54     ` Johannes Berg
2015-08-31 13:21       ` Pierre-Louis Bossart
2015-08-31 13:33         ` Johannes Berg
2015-08-31 14:26           ` Pierre-Louis Bossart
2015-08-31 14:38             ` Johannes Berg
2012-10-01 12:30 Newbie questions Adam Nielsen
2012-10-01 13:20 ` Joao Eduardo Luis
2012-10-01 16:13 ` Sage Weil
2012-10-06 15:05   ` Adam Nielsen
2005-11-01 17:33 Larry Alkoff
2005-11-02  5:41 ` Justin Zygmont
2005-11-03  0:55 ` Ralph Alvy
2005-11-03  4:12   ` Larry Alkoff
2005-11-03  6:17     ` Ralph Alvy
2005-11-03  7:32     ` John R. Sowden
2005-11-03 19:02       ` Larry Alkoff
2005-11-03 21:26         ` John R. Sowden
2005-11-04  3:45           ` Justin Zygmont
2005-11-05 17:06         ` Ralph Alvy
2005-11-05 19:25           ` Larry Alkoff
2005-11-06  0:42             ` Ralph Alvy
     [not found]           ` <436F5554.2030304@pobox.com>
     [not found]             ` <200511070723.31259.ralvy@warpmail.net>
2005-11-07 16:36               ` Alain
2005-11-09  7:46                 ` Ralph Alvy
2005-10-06 18:17 Gaurav Poothia
2005-10-06 21:04 ` Ivan Gyurdiev
2005-10-06 22:05   ` Luke Kenneth Casson Leighton
2005-10-06 18:12 Gaurav Poothia
2005-01-19 15:07 Scott Miller
2005-01-19 15:10 ` Geert Uytterhoeven
2005-01-19 20:53   ` Scott Miller
2004-12-15 19:49 Newbie Questions Joseph Swaminathan
2004-12-15 20:23 ` Marco Gerards
2004-12-15 20:51   ` Joseph Swaminathan
2004-12-15 20:56     ` Marco Gerards
2004-03-25 21:32 Newbie questions Jan Rychter
2004-03-26  2:26 ` Steven Hand
2004-04-07 21:08   ` Jan Rychter
2004-03-26  2:35 ` Ian Pratt
2002-08-03  4:10 Gustavo Sverzut Barbieri
     [not found] ` <20020803041040.10310.qmail-L8+/D2FWflyA/QwVtaZbd3CJp6faPEW9@public.gmane.org>
2002-08-03 12:49   ` Axel Siebenwirth
     [not found] <200204070157.g371vDs24544@superglide.netfx-2000.net>
2002-04-25  8:10 ` Newbie Questions Daniel
2002-04-09 21:39 Gyzmobro
2002-04-09 22:14 ` Glynn Clements
2001-12-11 23:44 Slightly confuzed Charles Steinkuehler
2001-12-12 14:59 ` Newbie questions Charles Steinkuehler

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