Sargun, do you mean I should also pass back the vclock with the GET request?
On Thu, Mar 3, 2016 at 10:05 PM, Qiang Cao <caoqiang...@gmail.com> wrote: > Thanks, Sargun and Alexander! I tried setting pr, pw, and sloppy_quorum. > It looks that these help. I got less stale values. But the issue wasn't > completely resolved. I'm using Riak 2.1.2. > > -Qiang > > > On Thu, Mar 3, 2016 at 9:46 PM, Sargun Dhillon <sar...@sargun.me> wrote: > >> So, if you pass back the vclock while pr=pw=quorum, and sloppy_quorum >> = false you should get RYOW consistency. >> >> On Thu, Mar 3, 2016 at 6:25 PM, Christopher Mancini <cmanc...@basho.com> >> wrote: >> > If you don't need strong consistency for all Riak requests, just certain >> > ones, then explore the use of R and N vals that can be passed along >> with the >> > request or on a bucket-type level. >> > >> > On Thu, Mar 3, 2016 at 9:23 PM Mark Schmidt <mschm...@orcawave.net> >> wrote: >> >> >> >> Hi Qiang, >> >> >> >> >> >> >> >> Other more skilled folks can correct me if I am wrong, but I believe >> you >> >> can enforce strong consistency on your nodes: >> >> http://docs.basho.com/riak/latest/theory/concepts/strong-consistency/ >> >> >> >> >> >> >> >> If I recall, you will take a performance hit as all nodes must receive >> the >> >> data. >> >> >> >> >> >> >> >> Thanks, >> >> >> >> >> >> >> >> - Mark Schmidt >> >> >> >> >> >> >> >> From: riak-users [mailto:riak-users-boun...@lists.basho.com] On >> Behalf Of >> >> Qiang Cao >> >> Sent: Thursday, March 03, 2016 6:13 PM >> >> To: Dave King <djk...@gmail.com> >> >> Cc: riak-users <riak-users@lists.basho.com> >> >> Subject: Re: Continuous HTTP POSTs to Riak >> >> >> >> >> >> >> >> Thanks, Dave! I'm aware of Riak's eventual consistency. I wonder how I >> can >> >> get Riak work in the way as I need. I'm in a situation where I expect >> the >> >> immediate GET reads the value I've just posted. And the GET request >> isn't >> >> sent out until the POST is done. >> >> >> >> >> >> >> >> Thanks, >> >> >> >> -Qiang >> >> >> >> >> >> >> >> On Thu, Mar 3, 2016 at 6:53 PM, Dave King <djk...@gmail.com> wrote: >> >> >> >> You need to google 'Eventual consistency'. >> >> >> >> >> >> >> >> - Peace >> >> >> >> Dave >> >> >> >> >> >> >> >> >> >> >> >> On Thu, Mar 3, 2016 at 4:23 PM, Qiang Cao <caoqiang...@gmail.com> >> wrote: >> >> >> >> Hi All, >> >> >> >> >> >> >> >> I use Riak as a KV store and send http requests to its REST API to >> update >> >> entries. Instead of using curl, I use Apache HttpClient to send >> requests. >> >> >> >> >> >> >> >> One thing bothering me is that sometimes I find the entry isn't >> properly >> >> updated after an HTTP POST/PUT. For example, if I do an HTTP GET on >> the same >> >> key immediately after an HTTP POST, the chance is good that I get a >> stale >> >> value. This happens when I continuously POST to a multi-node Riak, and >> some >> >> of the posts target the same key. >> >> >> >> >> >> >> >> Also, I find I don't have this issue if I use a single-node Riak. So I >> >> think something wasn't correct with my multi-node Riak cluster (I set >> >> "allow_mult" to false). Any thoughts? >> >> >> >> >> >> >> >> Thanks in advance! >> >> >> >> >> >> >> >> Qiang >> >> >> >> >> >> >> >> _______________________________________________ >> >> riak-users mailing list >> >> riak-users@lists.basho.com >> >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> >> >> >> >> >> >> >> >> >> >> >> _______________________________________________ >> >> riak-users mailing list >> >> riak-users@lists.basho.com >> >> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> > >> > -- >> > Sincerely, >> > >> > Christopher Mancini >> > ----------------------------- >> > >> > employee = { >> > purpose: solve problems with code, >> > phone: 7164625591, >> > email: cmanc...@basho.com, >> > github: http://www.github.com/christophermancini >> > } >> > >> > _______________________________________________ >> > riak-users mailing list >> > riak-users@lists.basho.com >> > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >> > >> > >
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