incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Benjamin Black...@b3k.us>
Subject Re: How reliable is cassandra?
Date Tue, 30 Mar 2010 01:00:26 GMT
That post is nonsense, start to finish.  Disregard everything it says
about both Cassandra and HBase.

On Mon, Mar 29, 2010 at 10:55 AM, Eric Hauser <ewhauser@gmail.com> wrote:
> Does the information is the below link about Cassandra and replication over
> WAN have any merit or is it just FUD?
> http://www.roadtofailure.com/2009/10/29/hbase-vs-cassandra-nosql-battle/
>
>
> On Mon, Mar 29, 2010 at 1:51 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
>>
>> Cassandra is an excellent choice for systems that Can't Lose Data.
>>
>>  - real single-server durability (set CommitLogSync to "batch"), not
>> just "hope it replicates somewhere before you lose power"
>>  - best multi-DC replication anywhere
>>  - immutable data files mean it's very difficult to introduce corruption
>> bugs
>>  - SnapshotBeforeCompaction option allows taking a snapshot of all
>> your data files before replacing them with newer ones, so you can roll
>> back to just before any compaction (as long as you have enough disk
>> space to hold the snapshots of course)
>>
>> -Jonathan
>>
>> On Mon, Mar 29, 2010 at 12:31 PM, Matthew Stump <mrevilgnome@gmail.com>
>> wrote:
>> > Am I crazy to want to switch our server's primary data store from
>> > postgres to cassandra?  This is a system used by banks and governments to
>> > store crypto keys which absolutely can not be lost.
>
>

Mime
View raw message