Hi all,
I just added another node to my cluster (moving from 1 to 2) and was
surprised by some behavior.
As I understand replication, with an n_val of 3 (default), all nodes will
have all data until I add my 4th node. First, is this right?
Second, I watched my disk usage on node 1 go from 1GB t
Hi,
It has been while Basho announced about Riak Search (I guess it is
almost an year back, if I remember correctly), do you have any time frame of
release? Or will it be available only to the Enterprise DS customer? I am
one of the persons looking for Riak Search after moving from Couchdb to
On Thu, May 13, 2010 at 11:02 AM, Senthilkumar Peelikkampatti <
senthilkumar.peelikkampa...@gmail.com> wrote:
> Hi,
> It has been while Basho announced about Riak Search (I guess it is
> almost an year back, if I remember correctly), do you have any time frame of
> release? Or will it be ava
Hi, Jimmy.
With an n_val of 3, there will be 3 copies of each data item in the
cluster even when there are less than 3 hosts. With 2 nodes in that
situation, each node will have either 1 or 2 copies of each item.
Does that help with your understanding?
-Justin
_
Ah, yes. So with 1 node, I had a guaranteed 3 copies of the data, and when
I added another node, some of those got reduced to 1 or 2 on that node. I
understand now, thanks.
Jimmy
On Thu, May 13, 2010 at 11:34 AM, Justin Sheehy wrote:
> Hi, Jimmy.
>
> With an n_val of 3, there will be 3 copies
For future reference, the problem was the GNU Coreutils version. My
version was relatively old (6.5) and did not have -n as an option. I
updated GNU Coreutils to 8.5 via this source:
http://ftp.gnu.org/gnu/coreutils/
I no longer get the invalid option error. But I now get the following
error wh
Running "make dev" first will create the "dev/riak" directory.
The "make devrel" command will copy the generated "dev/riak" directory into
three additional release directories "dev/dev1", "dev/dev2", "dev/dev3". The
name, web_port, pb_port, and handoff_port settings are then updated in the
three r
I'm keen on hearing more about this as well. I'm at the National Snow
and Ice Data Center and we're looking at an Enterprise Database that
will need to support terabytes (and getting close to a petabyte) of
research data. Thinking of storing all this in a RDBMSwait...just
shoot me!
I'm trying
Senthilkumar, Eric, others -
Thanks for your detailed and thoughtful questions about Riak Search.
We are well aware that many of you are building and prototyping
applications on Riak and that you are expecting to use Riak Search
heavily once it is available. This is great. MapReduce is a great
fe
Hi Ryan,
I have the same issue under FreeBSD.
And your Makefile.test gives this result:
CURDIR = ""
If change $(CURDIR) to $(.CURDIR) I get
CURDIR = "/usr/home/vitalka"
I had a little progress with building Riak, but stopped on building
erlang_js, can't find a way to build it.
I am thinking about how to possibly replace an existing system that has heavy
I/O load, low CPU usage, with riak. Its a file storage system, with smallish
files, a few K normally, but billions of them.
The architecture, I think, would be one riak node per disk on the hardware,
and probably run ab
Hi, Jeremy.
It sounds like an interesting project. At this time, there is no way
to indicate in Riak that two nodes are actually on the same host (and
therefore should not overlap in replica sets). It could certainly be
done, but to do so today would require modification to the ring
partition cl
Hi Jeremy,
If it were me I would start off with the simplest set up possible - one
riak node per physical machine. It'll be easier to see what is going on
and reason about performance if there are less moving parts.
For the storage configuration - if you are using innostore then keep one
for
Thanks Justin,
Good to know. I'll throw it out there as a feature request :-). Or at least
something to think about.
I believe it is HDFS that has something along these lines, where you can say
which nodes are in which racks and which data centers. This is so it knows who
its nearby neighbors
I've been playing with using postcommit hooks in some code. I
couldn't find an example, so looking at the source, I think the right
way to set one up is something like:
PHook = {struct, [ {<<"mod">>, <>}, {<<"fun">>,
<<"notify_change">>}]},
RiakClient:set_bucket(<>, [{postcommit, [PHook]}]),
Is
Thanks Jon,
I was thinking in terms of what we have right now, which is many processes per
physical machine, each one of them managing a dedicated disk to optimize I/O
throughput.
If I get a chance to do some prototyping on this, I'll try out the RAID0 option.
Although I'm a bit suspect at the mo
Hi Bruce,
Thanks for the patch - it's definitely worthwhile and we'll likely commit it
to tip soon.
- Andy
--
Andy Gross
VP, Engineering
Basho Technologies, Inc.
On Thu, May 13, 2010 at 6:16 PM, Bruce Lowekamp wrote:
> I've been playing with using postcommit hooks in some code. I
> couldn't
hey guys,
given that i have an array of keys and want to return the related documents.
what would be the best way to do this?
so far i can think of two ways
1. open a socket and call RpbGetReq asynchronously for each key
2. run a map reduce through the rest interface and deserialise the results
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