Hi,
I am searching for a big data storage solution for the Imixs-Workflow
project. I started with Hadoop until I became aware of the
'small-file-problem'. So I am considering using Cassandra now.
But Hadoop has one important feature for me. The replicator continuously
examines whether data b
There's a tool in the early stages of development here:
https://github.com/mifosio/cassandra/tree/develop/src/main/java/io/mifos/core/cassandra/core
That is part of a mass of code which is currently under (slow) discussion to be
added to the Apache Fineract project. ALV2 license.
I wouldn't be
Cassandra doesn't do that automatically - it can guarantee consistency on read
or write via ConsistencyLevel on each query, and it can run active
(AntiEntropy) repairs. But active repairs must be scheduled (by human or cron
or by third party script like http://cassandra-reaper.io/), and to be pe
Using SERIAL is of course much more expensive, but then the trade-off is
that you are guaranteed to have linearizability cross data-centers.
Please note that when using Lightweight Transactions, there 2 two distinct
consistency levels to be set:
1) The Paxos phase consistency level: SERIAL or LOC
Jeff,
With default compression enabled on each table, isn't there CRC files
created along side with SSTables that can help detecting bit-rot ?
On Sat, Sep 9, 2017 at 7:50 PM, Jeff Jirsa wrote:
> Cassandra doesn't do that automatically - it can guarantee consistency on
> read or write via Cons
There is, but they aren't consulted on the streaming paths (only on normal
reads)
--
Jeff Jirsa
> On Sep 9, 2017, at 12:02 PM, DuyHai Doan wrote:
>
> Jeff,
>
> With default compression enabled on each table, isn't there CRC files
> created along side with SSTables that can help detecting
(Which isn't to say that someone shouldn't implement this; they should, and
there's probably a JIRA to do so already written, but it's a project of
volunteers, and nobody has volunteered to do the work yet)
--
Jeff Jirsa
> On Sep 9, 2017, at 12:59 PM, Jeff Jirsa wrote:
>
> There is, but the
Yes it will "slow down" as more nodes need to be involved. Yes you will
need to use SERIAL for both reads and writes.
On 9 Sep. 2017 08:49, "Charulata Sharma (charshar)"
wrote:
> Thanks for your reply. I understand that LOCAL_SERIAL is for within a DC ,
> will setting up SERIAL not slow down the
