Hi Ian,
Did you retry the request with R=3 immediately after the failed read. What
most likely happened was read-repair kicked in after the unsuccessful read and
fixed all 3 replicas of the object. Generally it is a good idea to retry all
r_val_unsatisfied requests as read-repair should fix t
Greetings!
Today we have released the latest version of the Java client for Riak, v1.1.0
This is available immediately from Maven Central by adding the
following to your project's pom.xml:
com.basho.riak
riak-client
1.1.0
pom
For those not using maven we provide a single .jar
https://github.com/unisontech/uriak_pool
Main features
Graceful handling of riak nodes starts and shutdowns
simultaneous work with different riak clusters
parse_transform generation for interfaces from the client code
simple configuring using erlang configuration files
reconfiguration in runtime
te
Hi Chad,
I've started sketching out contribution instructions and guidelines here:
https://github.com/basho/riak_control/wiki/Contributing-to-Riak-Control
I'd appreciate any feedback on how this could be clearer, or more helpful.
- Chris
--
Christopher Meiklejohn
Software Engineer
Basho
Daniel -
Yes, sorry about that. This has been corrected in the current master
on github and version 1.1.0 of the client will be released today.
https://github.com/basho/riak-java-client/pull/212
Thanks!
Brian Roach
On Thu, Feb 14, 2013 at 9:31 AM, Daniel Iwan wrote:
> I see 100% CPU very regula
I see 100% CPU very regularly on one of the Riak client (v1.0.7) threads.
I think the place where it spins is connection reaper in RiakConnectionPool
I looked at it briefly and it seems that when it finds first connection
using peek but that does not expired it can spin in tight while loop.
I gues
Thanks for the insight into this.
---
Jeremiah Peschka - Founder, Brent Ozar Unlimited
MCITP: SQL Server 2008, MVP
Cloudera Certified Developer for Apache Hadoop
On Thu, Feb 14, 2013 at 4:40 AM, Christian Dahlqvist wrote:
> Hi OJ,
>
> The do_prereduce parameter makes it possible to have the fir
Hallo!
We have two Riak meet-ups in Germany next week:
* Monday 18th Feb in Munich:
http://www.meetup.com/Riak-Munchen/events/100799492/
* Wednesday 20th Feb in Hamburg:
http://www.meetup.com/Riak-Hamburg/events/102504802/
Both events are also on Xing:
* Munich: https://www.xing.com/e
Hi OJ,
The do_prereduce parameter makes it possible to have the first iteration of the
reduce phase execute where the preceding map phase generated output. This can,
as in the example I provided, be used to reduce the amount of data that needs
to be sent across the network. This is described in
Chris,
I've never heard of do_prereduce before. What kind of effect does this
have? That is, if someone were to use it all the time, regardless of the
amount of data being returned, would this be a bad thing?
Thanks.
OJ
On Thu, Feb 14, 2013 at 6:19 PM, Christian Dahlqvist wrote:
> Hi,
>
> For b
On 02/14/2013 12:19 PM, Erik Søe Sørensen wrote:
Those 18.4MB/s is utilized bandwidth, I presume?
Yes. What I find odd is that riak is writing max 6-700KB/sec on disk.
And how about the net between client and Riak?
They're on the same machine: the Java client and the riak process (one
node).
Those 18.4MB/s is utilized bandwidth, I presume?
And how about the net between client and Riak?
Further questions:
- Which backend are you using - LevelDB?
(If LevelDB: how does it look over time - is it faster at first, but
slowing down?)
- And how many writes do you do in parallel?
If you
What I have is:
Network bandwidth between nodes: 18.4 MB/sec
Network cards: 1.000Mbps full duplex
Riak process: IO: avg 600 K/s for disk write, 7% RAM used, 17% CPU used
Doesn't seem notwork bottleneck.
ing. Bogdan Flueras
On Thu, Feb 14, 2013 at 11:21 AM, Bogdan Flueras
wrote:
> What I have
Hi,
For buckets with a significant number of records, it makes a lot of sense to
run the example I provided with 'do_prereduce' enabled as it will result in
considerably less data being sent between the nodes. This can be enabled as
follows:
curl -XPOST http://localhost:8098/mapred
-H 'Cont
Just to rule something out: what is the capacity of the network between the
cluster and the client - and among the cluster nodes?
Oprindelig meddelelse
Fra: Shuhao
Dato:
Til: riak-users@lists.basho.com
Emne: Re: Tune Riak for fast inserts - populate DB
Hi,
I've had similar
Hi Jeremiah,
It does indeed not seem to be documented on the main docs site, and I will try
to correct this. The only place I have found it described is on the wiki for
the Ruby client
(https://github.com/basho/riak-ruby-client/wiki/Secondary-Indexes).
Below is also an example of a simple map
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