Hello everyone,
I was following the Riak Fast Track and setting up a dev environment and ran
into a problem I am having trouble solving so far. When I try to run ./riak
start I'm getting a generic error saying there was an "Error" reading the
app.config file. I've navigated there via an Erla
Hi Alexander,
Ok, I'll change the dw settings and see what the throughput is like. Obviously
setting the 'sync' option will also kill performance after that..
I'm hoping to get back to Riak Monday or Tuesday.
thanks again,
Pat.
Subject: Re: missing keys?
From: sicul...@gmail.com
Date: Fri,
"Lazy writing of the data is not really an option for what we need."
Then I would say dw should equal n (dw=3 in your case) which would ensure that
all data is on disk. Try rerunning your tests with that configuration. This
should negatively affect performance though.
-Alexander Sicular
@sicul
Hey Alexander,
thanks for the response. Yup - I'm a Riak newbie for sure :). I have
replication set to 3 on the cluster. So, if dw=2, is it durable or not? even
if it's durable across vnodes. If it is durable across vnodes, then it should
be queryable?
One of the big considerations I have
Hi Pat,
"thanks for that. Is the default on dw not also quorum though?? so, in my
case it should be 2 (since I have 2 nodes)??"
Consider the difference in the usage of the word "node." There is actually a
large difference between two definitions of the commonly used word, "node."
1. node: vi
Thanks for the tip Russell. I managed to get this done.
I have one more question and a suggestion.
- Is the name keyData a misnomer in the mapping function -> function(
value, keyData, arg) ? keyData is a String that carries the bucket
name. The value object carries more information.
Hi,
thanks for that. Is the default on dw not also quorum though?? so, in my case
it should be 2 (since I have 2 nodes)??
thanks,
Pat.
Date: Fri, 14 Sep 2012 12:11:25 -0400
Subject: Re: missing keys?
From: rzeze...@basho.com
To: plynch1...@hotmail.com
CC: s...@basho.com; riak-users@lists.basho
Pat,
On Fri, Sep 14, 2012 at 11:08 AM, Pat Lynch wrote:
>
>
> So, if I write a key to a cluster and then try to query that key, it may
> not find it unless I retry? Even if r=2 & w=2 ? I thought that at least 2
> systems had to have that key (either in memory or disk) for the write to
> have su
Hi Reid,
thanks for that - I'll read up on those links.
thanks again,
Pat.
Subject: Re: missing keys?
From: reiddra...@gmail.com
Date: Fri, 14 Sep 2012 11:09:01 -0400
CC: plynch1...@hotmail.com; riak-users@lists.basho.com
To: s...@basho.com
Pat,
Adding to what Sean said, Riak also offers some mo
Pat,
Adding to what Sean said, Riak also offers some more fine-grained controls
around when
replicas return 'notfound'. In your case, using `{notfound_ok, false}` and
`{basic_quorum, false}`
might help as well. You can see them documented more here [1]. Unfortunately
the Python
client doesn't s
Hi Sean,
thanks for the very quick response :) - much appreciated. No, I didn't put any
retries in the code at all.
So, if I write a key to a cluster and then try to query that key, it may not
find it unless I retry? Even if r=2 & w=2 ? I thought that at least 2 systems
had to have that key
Pat,
Does your test use retries when it gets "not found" responses? You
might not encounter that small % of missing keys if you retry at least
once when they are missing. Because of the eventually consistent
design of Riak, writes you make might not be readable immediately.
On Fri, Sep 14, 2012 a
Hi all,
I was just wondering if you could give me some feedback on my usage of RIAK.
I'm currently testing a number of datastores and am trying to come up with
pros/ cons of each.
I have a variety of tests (write speed 1 client, write speed 10 clients, read
speed 1 client, read speed 10 clien
Ian,
I use the prebuilt package of Riak 1.2.0 for Ubuntu Precise.
I think I've got some more information now. The problem seems to show up
when using the ejsLog() function from a MapReduce JS phase function. It has
already been reported once here: https://github.com/basho/riak/issues/209
I have
On 14 Sep 2012, at 14:24, Deepak Balasubramanyam wrote:
> Hi,
>
> I've written a map reduce query on the riak java client like so...
>
> client.mapReduce(BUCKET).addKeyFilter(keyFilter)
> .addLinkPhase(BUCKET, "_", false)
> .addMapPhase(new NamedJSFunctio
Staffan,
Are you using a Basho provided package or did you build from source?
-ian
On Thursday, 13 September 2012 at 15:42, Staffan Einarsson wrote:
> Ian:
>
> Actually, yes there is: http://pastebin.com/N3zh9fc7
>
> It seems at the end that something fails in the JavaScript driver. Tha
Hi,
I've written a map reduce query on the riak java client like so...
client.mapReduce(BUCKET).addKeyFilter(keyFilter)
.addLinkPhase(BUCKET, "_", false)
.addMapPhase(new NamedJSFunction("Riak.mapValuesJson"),
false)
.addReducePhase(phas
17 matches
Mail list logo
