My benchmarks with Riak against Redis showed Riak is fast, but it's
never going to be as fast for caching as an in-memory only store that
doesn't have to do coordination. That said if your data set is larger
than RAM, Riak will likely be faster as it will scale to handle that
better.
-J
On Wed,
Are there any plans to make expiry setable via an HTTP header?
-J
On Wed, Mar 2, 2011 at 9:57 AM, Sean Cribbs wrote:
> Innostore does not have an expiration option. In general, you'll want to
> use bitcask unless your operational requirements specifically call for
> innostore.
> Sean Cribbs
>
Hello,
When running map/reduce in streaming mode, since the results are from
the last phase (reduce) what is the significance of the phase key?
(e.g. {"phase":1,"data":[3]} )
-J
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Hello,
I've been playing with implementing streaming support in the txRiak
library. However, I've noticed that when a map reduce error occurs
during a streaming map/reduce, Riak doesn't wrap the error in the
boundary specified in the Content-Type header:
https://gist.github.com/852270
That makes
11 at 8:25 PM, Sean Cribbs wrote:
> If your query has "keep":true on multiple phases, that phase key lets you
> disambiguate results.
>
> Sean Cribbs
>
> On Mar 2, 2011, at 9:28 PM, "Jason J. W. Williams"
> wrote:
>
>> Hello,
>>
>> Wh
Hi,
I'm experimenting using key filters to implement indexes. My approach
is for each data key in bucket A, to create a new empty key in a
dedicated index bucket where the original key name and value of the
indexed field is encoded in the key name for a new index key.
Data key looks like this:
B
passed in? Thought playing with streaming would
>> help that, but looks like not. Thank you in advance.
>>
>> -J
>>
>> On Wed, Mar 2, 2011 at 8:25 PM, Sean Cribbs wrote:
>>> If your query has "keep":true on multiple phases, that phase key lets yo
't intuitive and are looking into
> solutions.
>
> Sean Cribbs
> Developer Advocate
> Basho Technologies, Inc.
> http://basho.com/
>
> On Mar 3, 2011, at 9:44 AM, Jason J. W. Williams wrote:
>
>> Hi Sean,
>>
>> That's weird, because I'm se
If someone could help me understand just this error, that would help a
lot: https://gist.github.com/852450
Thank you in advance.
-J
On Wed, Mar 2, 2011 at 11:55 PM, Jason J. W. Williams
wrote:
> Hi,
>
> I'm experimenting using key filters to implement indexes. My approach
>
Through trial and error I think I've found the cause of my error...the
tokenize function. Is it possible to log the output of tokenize in a
job to compare what I think it should be outputting to what it
actually is?
-J
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nth(2, ["helloworld"]).
> ** exception error: no function clause matching lists:nth(1,[])
> It seems Riak should catch errors during the filtering process and discard
> keys that cause errors. I will file a bug.
> Thanks,
> Dan
> Daniel Reverri
> Developer Advo
g the filtering process and discard
>> keys that cause errors. I will file a bug.
>> Thanks,
>> Dan
>> Daniel Reverri
>> Developer Advocate
>> Basho Technologies, Inc.
>> d...@basho.com
>>
>>
>> On Thu, Mar 3, 2011 at 10:28 AM, Jason J. W. W
o Technologies, Inc.
> d...@basho.com
>
>
> On Thu, Mar 3, 2011 at 12:32 PM, Jason J. W. Williams
> wrote:
>>
>> ...btw I've found with the key filter, I have to supply a JavaScript
>> map function if I want to use a JS reduce function. If I use just a JS
>>
Hi Guys,
I've put together a library for my company's needs to implement
secondary indexes in Riak transparently. It's built on top of Ray
Cote's great txRIak library, and should drop in transparently anywhere
txRiak is used. We've open sourced it in case it's useful for anyone
else:
https://gith
Is it possible to add a link phase when using key filters? Currently,
just using key filters combined with a reduce phase (built-in reduce
identity). Would like to add a link phase to pull all the linked keys
and pass them to the identity reduce as well. Thank you in advance.
-J
_
is greatly appreciated.
-J
On Mon, Mar 14, 2011 at 12:34 PM, Dan Reverri wrote:
> Hi Jason,
>
> Yes, a link phase can be used after a key filter.
>
> Thanks,
> Dan
>
> Daniel Reverri
> Developer Advocate
> Basho Technologies, Inc.
> d...@basho.com
>
&g
; Developer Advocate
> Basho Technologies, Inc.
> d...@basho.com
>
>
> On Mon, Mar 14, 2011 at 11:54 AM, Jason J. W. Williams <
> jasonjwwilli...@gmail.com> wrote:
>
>> The reason I ask, is when I add a link walk phase (with bucket set to the
>> data bucket), my
On Mon, Mar 14, 2011 at 2:01 PM, Dan Reverri wrote:
> Hi Jason,
>
> The reduce_identity function expects a two element tuple or a two element
> list; you can see this by looking at the pattern matching in the function:
> https://github.com/basho/riak_kv/blob/master/src/riak_kv_mapreduce.erl#L141
>
> Anyone else care to share their setup? Or have any questions about
> what your dev setup should look like?
>
We use 4GB RAM, 1x 2.0GHz core Cloudlayer instances at Softlayer for
testing. Usually spin up 4-5 nodes.
-J
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Hi David,
If you want both good performance and reliability you might look at somebody
like SoftLayer who will let you mix and match cloud and dedicated servers to
meet your needs. Both they and Voxel have cloud servers that beat the pants off
EC2.
-J
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On Fri, Apr 1, 2011 at 11:00 AM, Mark Steele wrote:
> I've done some rather disappointing tests with Riak using Rackspace cloud
> servers. Much better off on dedicated hardware if you can find it.
I haven't found anything except small web sites that RS Cloud has
enough performance for.
-J
_
Any word on R14B02 support in Riak? Anxious to get it running again in Homebrew.
-J
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Looks like it hasn't made it into Homebrew yet then:
https://gist.github.com/902267
-J
On Mon, Apr 4, 2011 at 1:36 PM, Andrew Thompson wrote:
> On Mon, Apr 04, 2011 at 12:54:05PM -0600, Jason J. W. Williams wrote:
>> Any word on R14B02 support in Riak? Anxious to get it ru
ine.
>
> Sean Cribbs
> Developer Advocate
> Basho Technologies, Inc.
> http://basho.com/
>
> On Apr 4, 2011, at 3:36 PM, Andrew Thompson wrote:
>
>> On Mon, Apr 04, 2011 at 12:54:05PM -0600, Jason J. W. Williams wrote:
>>> Any word on R14B02 support in Riak? A
We implemented a scheme for maintaining secondary indexes using
MapReduce and KeyFilters. It's written in Python but there's a
description of how the design works and a test script for validating
other implementations:
https://github.com/williamsjj/txriakidx
Nor sure if that will help...it's reas
On Thu, May 5, 2011 at 4:49 PM, Andrew Berman wrote:
> Ah, that makes sense. So is it the case that using the link implementation
> will always be faster? Or are there cases where it makes more sense to use
> a key filter?
There's a practical limit to how many links you can walk before
performa
Have you tried with Erlang R14B02?
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On Jun 4, 2011, at 5:25, Alvaro Videla wrote:
> Hi,
>
> I'm trying to build riak using the latest Erlang release built with these
> options:
>
> ./configure --enable-smp-support --enable-darwin-64bit --enable-kernel-
e only compiles with latest Erlang.
>
> On Jun 4, 2011, at 10:48 PM, Jason J. W. Williams wrote:
>
>> Have you tried with Erlang R14B02?
>>
>> Sent via iPhone
>>
>> Is your email Premiere?
>>
>> On Jun 4, 2011, at 5:25, Alvaro Videla wrote:
>
>
> However, make sure you do the reading on the SSDs you're going to purchase
> because not all SSDs are created equal. I had a client buy some smaller
> OCZ-Vertex 3s recently which have a wear leveling issue (the 120GB drives
> have fewer chips than the 240GB drives) that causes performance to f
How does Riak Control differ from the management tools included in the
enterprise version?
-J
On Tue, Jan 10, 2012 at 12:56 PM, Andrew Thompson wrote:
> Riak control will be part of the 1.1 series, it is not present in 1.0.2
> or any of the 1.0 releases.
>
> Andrew
>
> __
That's terrific. Thank you.
-J
On Tue, Jan 10, 2012 at 1:08 PM, David Smith wrote:
> On Tue, Jan 10, 2012 at 12:58 PM, Jason J. W. Williams
> wrote:
> > How does Riak Control differ from the management tools included in the
> > enterprise version?
>
> Riak C
On Thu, Apr 19, 2012 at 11:37 AM, Zabrane Mickael wrote:
> +1 for a solid book on advanced Riak usage.
Better marketing of Mathias' excellent Riak Handbook would definitely
help...would be great if it showed up on Amazon at least if not
bn.com.
Someday replication making it into the community ve
Hello,
Given replication is a built-in feature only in the EnterpriseDS
product, how are folks using only the open source version of Riak
handling replication? Writing to two clusters simultaneously or
something else perhaps?
Thank you in advance.
-J
Hi,
We have a couple of projects we want to start small and to this point
we've been considering MongoDB or Cassandra. Mongo's main drawback for
us is it's extensive use of mmap, which can make it a bad neighbor
vis-a-vis RAM usage if it has to co-exist with other parts of our
stack. Cassandra's h
are some flags to the Erlang VM that can be tweaked.
>
> Sean Cribbs
> Developer Advocate
> Basho Technologies, Inc.
> http://basho.com/
>
> On May 26, 2010, at 6:23 PM, Jason J. W. Williams wrote:
>
>> Hi,
>>
>> We have a couple of projects we want
t; http://basho.com/
>
> On May 26, 2010, at 6:17 PM, Jason J. W. Williams wrote:
>
>> Hello,
>>
>> Given replication is a built-in feature only in the EnterpriseDS
>> product, how are folks using only the open source version of Riak
>> handling replication?
s wrote:
>>
>> Yes, you can use low-level commands to recover lost data from the binlogs.
>> It's embedded InnoDB, not MySQL's driver, so not everything is exactly the
>> same, but the technique is similar.
>>
>> Sean Cribbs
>> Developer Advocate
Interesting. Makes sense.
-J
On Thu, May 27, 2010 at 5:43 AM, Sean Cribbs wrote:
> Correct, the vector clocks would not necessarily be the same.
>
> Sean Cribbs
> Developer Advocate
> Basho Technologies, Inc.
> http://basho.com/
>
> On May 26, 2010, at 11:47 PM, Ja
Hello,
I was reading the "So what does N=3 really mean?" section of
https://wiki.basho.com/display/RIAK/Replication#Replication-ReadRepair
...
The part where it states that 3 replicas will not necessarily go to 3
physically separate nodes very much surprised me. Is there any
guarantee at least tw
Does the bitcask back end handle crash recovery as well as the
InnoStore backend?
-J
On Wed, Jun 9, 2010 at 1:55 PM, Jon Meredith wrote:
> Hello, Riak users. We are excited to announce the release of Riak version
> 0.11.
>
> Pre-built installations and source tarballs are available at:
> http:/
r than innostore, simply because we don't have enough data to
> support it...yet. :)
> I will say, however, that the append-only nature of bitcask minimizes the
> opportunity to lose and/or corrupt data, not to mention obviating the need
> for log files ala InnoDB.
> D.
>
>
Is it smart enough to coordinate with the other partitions to ensure
not more than 25% (just a plug number) of the partitions are
compacting at the same time? It would seem to me there's the
possibility for a performance drop if you had the perfect storm of too
many shards compacting at the same ti
d. Also, a single node only compacts a single
> partition at a time.
> FWIW, in my own testing, with a 50/50 read/write mix, compaction (based on
> fragmentation %) typically doesn't happen that often, particularly when you
> have a cluster of machines.
> Hope that helps.
> D
cally possible refers to having at least N physical nodes
> available. Meaning you can't place 3 replicas on distinct nodes if you only
> have 2 nodes.
> Thanks,
> Dan
> Daniel Reverri
> Developer Advocate
> Basho Technologies, Inc.
> d...@basho.com
>
>
> On Wed, J
Hey Justin,
Since Riak is lockless, what is the best approach to pulling a
distributed FS snapshot of the bitcask files across nodes? I assume if
they're not close to each other, you'll have an issue if you have to
restore a cluster.
-J
On Sun, Jul 11, 2010 at 8:14 PM, Justin Sheehy wrote:
> H
Hmm...just created a new account to track this in the Basho
bugzilla...seems not to recognize new accounts...
-J
On Wed, Jul 21, 2010 at 7:31 AM, Justin Sheehy wrote:
> I think that we are all (myself included) getting two different issues
> a bit mixed up in this discussion:
>
> 1: storing an i
Honestly the holding back of replication from Riak OS is the only real downside
to the product. Reminds me of the old adage there's those that will never pay
for OS software...and those that can't afford not to (because of things like
Sox).
-J
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On Jul
Joyent makes a great service, but they are WAY overly priced. I'd
recommend a 512 SliceHost/Linode. Or a 1GB @ Voxel/SoftLayer.
-J
On Thu, Aug 12, 2010 at 10:40 AM, Alexander Sicular wrote:
> - You can not tell riak where to place buckets.
> - You could set the N val on a bucket to one, and you
Hello,
Has anyone done any testing on the maximum latency that can exist
between Riak nodes before you start seeing issues?
In the same vein how are folks using the open source product
approaching replication between DCs?
-J
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Maybe the community can come up with a solution for those of us that can't
afford or yet justify EnterpriseDS.
-J
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On Oct 5, 2010, at 9:40, Dean Cookson wrote:
> Andrew,
> The best way to do what you describe is to have a cluster in each datacenter
>
e to afford EnterpriseDS. Or is it prohibitively
> expensive?
>
> I have no idea. But afaics that's Basho's revenue model.
>
> Francisco
>
>
> 2010/10/5 Jason J. W. Williams :
>> Maybe the community can come up with a solution for those of us that can&
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