Re: Migration from memcachedb to riak

( first post here, hi everybody... ) If you don't need MR, 2i, etc, then BitCask will be faster. You just need to make sure all your keys fit in memory, which should not be a problem. How many keys do you have and what's their average length ? About the values,you can save a lot of space by choos

Re: Migration from memcachedb to riak

On 10 July 2013 11:03, Edgar Veiga wrote: > Hi Guido. > > Thanks for your answer! > > Bitcask it's not an option due to the amount of ram needed.. We would need > a lot more of physical nodes so more money spent... > Why is it not an option? If you use Bitcask, then each node needs to store its

Re: Migration from memcachedb to riak

xxx___0x_00_000_000xx > > We are using the php serialize native function! > > Best regards > > > > On 10 July 2013 11:43, damien krotkine wrote: > >> >> >> >> On 10 July 2013 11:03, Edgar Ve

design a read-only data storage cluster

Hi, I'm trying to use Riak for - basically - a short-lived data storage system. Here are my prerequisites: - keys will contain a timestamp and some properties. I can work on making them short - values will be binary blobs. From few bytes to few MB - values are read-only : once written they are ne

Re: design a read-only data storage cluster

On Sat, Dec 21, 2013, at 06:51 AM, Matthew Von-Maszewski wrote: On Dec 21, 2013, at 4:12 AM, Damien Krotkine <[1]dkrotk...@gmail.com> wrote: First option is to use leveldb as storage backend. And use an external script to expire (delete) keys that are too old (one of the sec

PUT / GET priority

Hi, I'm stress testing Riak on a reasonable cluster size (10 nodes), where 1 process constantly adds data, and various other processes read it, but never update it (nor delete it). I can see that when I add more processes to read the data, the processing PUTing the data is affected, and its perfo

Still merge errors in patched riak_kv_bitcask_backend

rge/4-fun-0-',7,[{file,"src/bitcask.erl"},{line,1912}]},{bitcask_fileops,fold_hintfile_loop,5,[{file,"src/bitcask_fileops.erl"},{line,660}]},{bitcask_fileops,fold_file_loop,8,[{file,"src/bitcask_fileops.erl"},{line,720}]},{bitcask_fileops,fold_hintfile,3,[{file,"

Broken beam for bitcask patch on basho website

Hi, On the official website, http://docs.basho.com/riak/latest/downloads/ mentions that bitcask users should use this patch : http://s3.amazonaws.com/downloads.basho.com/patches/bitcask-2.0-merge-crash/riak_kv_bitcask_backend.beam However, the link will let you download a beam file that actual

measuring gossip bandwidth

Hi, I'd like to (at least approximately know) how much gossiping (and other things that are non strictly data-copying related) uses of the network bandwidth. Is there any information I can lookup in logs or via the console, or even any experiment that I can do to measure it? I am operating

Riak CS expiration

Hi, As far as I understand, Riak CS uses bitcask for data storage and leveldb for metadata. Trying to implement expiration of data in riak cs, bitcask expiration works fine, but of course metadata are still in the leveldb backend. Is there any way to expire metadata from riak cs automatically ?

upgrading a node in a 27 nodes cluster

Hi, In a cluster with 27 nodes, running 2.0.0, I upgraded one node to 2.1.1 (riak-2.1.1-1.el6.x86_64.rpm). Since them, this node is producing these kind of logs, every couple of minutes: 2015-05-27 14:56:31.978 [info] <0.94.0>@riak_core_sysmon_handler:handle_event:92 monitor long_schedule <0.1201

Upgrading 1 node in a 27 nodes cluster

Hi, In a cluster with 27 nodes, running 2.0.0, I upgraded one node to 2.1.1 (riak-2.1.1-1.el6.x86_64.rpm). Since them, this node is producing these kind of logs, every couple of minutes: 2015-05-27 14:56:31.978 [info] <0.94.0>@riak_core_sysmon_handler:handle_event:92 monitor long_schedule <0.12

Re: upgrading a node in a 27 nodes cluster

, Matt > > > -- > Matt Brender | Developer Advocacy Lead > [t]@mjbrender[1] > > On Wednesday, May 27, 2015 at 11:26 AM, Damien Krotkine > , wrote: >> Hi, >> >> >> >> In a cluster with 27 nodes, running 2.0.0, I upgraded one node >> to 2.1.1 &g

Bitcask expiration issue

Hi, I'm seeing strange things with bitcask expiration: When a new node joins a Ring, it gets data from the other nodes to rebalance. It seems that the starting date to count expiration of this data is the time when they were copied to the new node, *not* the date they were originally created

Bitcask expiration issue

Hi, [ this is a possible duplicate, but it seems that messages sent by my other email account (damien.krotk...@booking.com don't reach list recipients - if I'm wrong, let me know - so I'm sending it again with this address ] I'm seeing strange things with bitcask expiration: When a new node joins

Ring resizing space requirement

Hi, I need to do a ring-resizing on a live cluster. The documentation ( http://docs.basho.com/riak/latest/ops/advanced/ring-resizing/ ) is not very detailed, and I'm missing one important information: how much free space do I need on the nodes to perform the ring resizing properly ? Having enough

spurious secondary index writes

ke sure my cluster is not creating secondary indexes :) Thanks, Damien Krotkine ___ riak-users mailing list riak-users@lists.basho.com http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com

Re: Stalled handoffs

Have you checked riak-admin transfer-limit ? if it's at zero handoffs will be blocked. > Le 21 sept. 2015 à 15:41, Nico Revin a écrit : > > Hi! > > I have the following issue: > # riak-admin ringready > TRUE All nodes agree on the ring ['riak@1', > 'riak@2'

Re: SOLR - indexing JSON

Hi Joe, I have a similar setup, and in my case, "indexed_s" is properly indexed. Are you sure that your data is really what you think it is ( i.e. real JSON, with the right mimetype, etc) ? dams. Joe Olson wrote: Using the default YZ index schema, I know I can index: dataset={ indexed_

Re: limit of bucket/solr indexes

Alexander Popov wrote: 1. does Riak have restrictions on bucket numbers? In practical life no, as long as you use bucket-types properly. 2. same for SOLR indexes? I assume you'll want one index per bucket. SOLR indexes are mostly limited by the RAM and disk space that you can throw at them

Re: Sorting of data using 2i pagination

AFAIK secondary index pagination sorting doesn't support descending order. Maybe you can simple have an additional 2i whith your value inverted ? Grigory Fateyev wrote: Hello! We use 2i pagination and it is very good. The only thing that bothering me is sorting. Now data returns in ascending

Re: LucidWorks Banana Integration

Hi Mark, I have successfully integrated Banana with Riak 2.0 Solr implementation. I simply configured a nginx to act as proxy between Riak Search / Solr / What banana expects. So basically: - Install Riak 2, java, and enable Riak Search (follow basho doc) - Install banana - install nginx and u

Solr requests and Riak Search (was: Re: LucidWorks Banana Integration)

100% valid, but at least you get the idea of what we can do : I'm using the solr stats features *with* facets at the same time. In this case I4m only interested by the stats (min/max/sum_of_squares/average) and not the actual results, so I set row=0. So basically all the solr

Re: Two quick questions about X-RIak-Meta-* headers....

Hi Joe, First of all, what Dmitri says makes a lot of sense. From what I understand, you are trying to avoid wasting network bandwidth by transferring data where you only need the metadata of your keys. As Dmitri pointed out, if your replication factor is 3 (default), then Riak will internall

Re: epmd listener port

There is an easier way to do it, by using the advanced config file (usually /etc/riak/advanced.config ) Here is an example, where I use advanced.config to add a vm_args configuration fields. So I suppose you could use the same syntax to add your -env option: [ {vm_args, [ {'-s my_app', ""},

Re: Massive json schema update

Hi Guillaume, If I understand correctly you need to change all the values of your JSON data. How many keys are we talking about, how big are the data, and in how many buckets are the keys? Also, is your cluster in production yet? > Le 7 juin 2016 à 18:43, Guillaume Boddaert > a écrit : >

Re: Massive json schema update

know. Guillaume On 08/06/2016 08:49, Damien Krotkine wrote: Hi Guillaume, If I understand correctly you need to change all the values of your JSON data. How many keys are we talking about, how big are the data, and in how many buckets are the keys? Also, is your cluster in production yet?

Re: RiakTS and Multi-Backend

-10-12 10:02:41.372 [error] <0.1410.0> gen_fsm <0.1410.0> in state >>>> active terminated with reason: call to undefined function >>>> riak_kv_multi_backend:range_scan/4 from riak_kv_vnode:list/7 line 1875 >>>> >>>> And then in the client cod

Re: anti_entropy and solr taking up suspiciously large amounts of space

On Mon, Apr 3, 2017, at 22:20, Matthew Von-Maszewski wrote: > Rohit, > > My apologies for the delayed reply. Too many conflicting demands on > my time the past two weeks. > > I reviewed the riak-debug package you shared. I also discussed its > contents with other Riak developers. >

Re: Riak and the demise of Basho

+1 for Apache2 On Thu, Sep 7, 2017, at 19:05, Neeraj Sharma wrote: > +1 for Apache 2. Thanks for making it open source. > > On Thu, Sep 7, 2017 at 3:36 AM, Bill Barnhill > wrote: > > +1 for Apache 2. Thank you so much for saving all the important technology > > developed by the great developers

Re: Riak-2.2.5 progress update

Hi, I'm probably coming late to the party, but we have a big number of riak boxes running at work, in meta-clusters, so some rings are redundantly storing data. I could move one of them to the RC and compare its performance/errors/whatever with the non upgraded rings, if you people think it's u

Re: Riak-2.2.5 progress update

sell Brown > Sent: 10 April 2018 18:53 > To: Bryan Hunt > Cc: Damien Krotkine ; riak-users us...@lists.basho.com> > Subject: Re: Riak-2.2.5 progress update > > More update. > > There were some minor changes that missed the rc1, so we added them > > * yokoz