Re: May allow_mult cause DoS?

2013-12-21 Thread Jason Campbell
- Original Message - From: "Russell Brown" To: "Jason Campbell" Cc: "riak-users" , "Viable Nisei" Sent: Saturday, 21 December, 2013 8:25:01 PM Subject: Re: May allow_mult cause DoS? >Hi, >What is a "sibling with no parent object”?

Re: May allow_mult cause DoS?

2013-12-21 Thread Russell Brown
Hi, On 20 Dec 2013, at 23:16, Jason Campbell wrote: > > - Original Message - > From: "Andrew Stone" > To: "Jason Campbell" > Cc: "Sean Cribbs" , "riak-users" > , "Viable Nisei" > Sent: Saturday, 21 December, 2

Re: May allow_mult cause DoS?

2013-12-20 Thread Jason Campbell
- Original Message - From: "Andrew Stone" To: "Jason Campbell" Cc: "Sean Cribbs" , "riak-users" , "Viable Nisei" Sent: Saturday, 21 December, 2013 10:01:29 AM Subject: Re: May allow_mult cause DoS? > Think of an object with thous

Re: May allow_mult cause DoS?

2013-12-20 Thread John Daily
of those 10,000. > > -Andrew > > > On Fri, Dec 20, 2013 at 5:41 PM, Jason Campbell wrote: > > From: "Sean Cribbs" > To: "Jason Campbell" > Sent: Saturday, 21 December, 2013 3:17:57 AM > > Subject: Re: May allow_mult cause DoS? > > > No,

Re: May allow_mult cause DoS?

2013-12-20 Thread Andrew Stone
0,000. -Andrew On Fri, Dec 20, 2013 at 5:41 PM, Jason Campbell wrote: > > -- > *From: *"Sean Cribbs" > *To: *"Jason Campbell" > *Sent: *Saturday, 21 December, 2013 3:17:57 AM > > *Subject: *Re: May allow_mult cause DoS? > >

Re: May allow_mult cause DoS?

2013-12-20 Thread Jason Campbell
- Original Message - From: "Sean Cribbs" To: "Jason Campbell" Sent: Saturday, 21 December, 2013 3:17:57 AM Subject: Re: May allow_mult cause DoS? > No, the behavior in LevelDB is no different than the behavior of any of our > other backends, namel

Re: May allow_mult cause DoS?

2013-12-20 Thread Sean Cribbs
On Thu, Dec 19, 2013 at 11:14 PM, Jason Campbell wrote: > Can anyone familiar with Riak internals describe how siblings are handled > in Level DB? I think part of this issue is a misunderstanding of how that > works and false expectations. > > As far as I understand, siblings are light at write t

Re: May allow_mult cause DoS?

2013-12-19 Thread Jason Campbell
users@lists.basho.comSubject: SV: May allow_mult cause DoS?Save the transaction list inside the customer object keyed by customerid. Index this object with 2i on storeids for each contained tx.If some customer objects grow too big, you can move old txs into archive objects keyed by customerid_seqno. For you

Re: May allow_mult cause DoS?

2013-12-19 Thread Andy Gross
alistic data > sizes/shapes and access patterns. It's fastest if we come onsite for a couple > of days and work with you to set it up, but we can also help you offsite. > > Write me if you're interested, then we can do a call. > > Rune Skou Larsen > Trifork, Denma

Re: May allow_mult cause DoS?

2013-12-18 Thread Viable Nisei
, but we can also help you > offsite. > > Write me if you're interested, then we can do a call. > > Rune Skou Larsen > Trifork, Denmark > > > - Reply message - > Fra: "Viable Nisei" > Til: "riak-users@lists.basho.com" > Emne: M

SV: May allow_mult cause DoS?

2013-12-18 Thread Rune Skou Larsen
s and work with you to set it up, but we can also help you offsite. Write me if you're interested, then we can do a call. Rune Skou Larsen Trifork, Denmark - Reply message - Fra: "Viable Nisei" Til: "riak-users@lists.basho.com" Emne: May allow_mult cause D

Fwd: May allow_mult cause DoS?

2013-12-18 Thread Viable Nisei
-- Forwarded message -- From: Viable Nisei Date: Thu, Dec 19, 2013 at 2:11 AM Subject: Re: May allow_mult cause DoS? To: Russell Brown Hi. Thank you for your descriptive and so informative answer very much. On Wed, Dec 18, 2013 at 3:29 PM, Russell Brown wrote: > Hi, >

Re: May allow_mult cause DoS?

2013-12-18 Thread Russell Brown
hat it's optimized for... > Can you tell us exactly why you need Bitcask rather than LevelDB? 2i would > probably do it. > Otherwise, storing a list of items under each key could be a solution, > depending of course on the number of items per key. (But do perform conflict > re

Re: May allow_mult cause DoS?

2013-12-17 Thread Viable Nisei
items under each key could be a solution, > depending of course on the number of items per key. (But do perform > conflict resolution.) > /Erik > > > > Oprindelig meddelelse > Fra: Viable Nisei > Dato: > Til: riak-users@lists.basho.com > Emne:

RE: May allow_mult cause DoS?

2013-12-17 Thread Erik Søe Sørensen
key could be a solution, depending of course on the number of items per key. (But do perform conflict resolution.) /Erik Oprindelig meddelelse Fra: Viable Nisei Dato: Til: riak-users@lists.basho.com Emne: May allow_mult cause DoS? Hi. Recently we've described tha

Re: May allow_mult cause DoS?

2013-12-17 Thread Brian Roach
On Tue, Dec 17, 2013 at 10:28 AM, Viable Nisei wrote: > Here you can check our code sample (in java) reproducing this behavior: > https://bitbucket.org/vsnisei/riak-allow_mult_wtf > ... > Anyway, looks like that some DoS/DDoS attack approach utilizing this > behavior may be proposed. We should onl

Re: May allow_mult cause DoS?

2013-12-17 Thread Reid Draper
Hey, Are you _resolving_ the siblings that you create? It sounds like you’re purposely creating siblings and not resolving them, as I read things like ‘only 80-100 values per … keys’. Riak is not intended to be used this way. 80 siblings is a lot, and will dramatically decrease performance for tha

May allow_mult cause DoS?

2013-12-17 Thread Viable Nisei
Hi. Recently we've described that something is going unexpectedly. We are using Riak 1.4.2 with some buckets with allow_mult=true. We've tried our app under load then found that... concurrently writes into bucket with allow_mult turning Riak into irresponsible slowpoke and even crash it. Core i3