Abhishek 2012-07-27, 16:40
Bejoy Ks 2012-07-27, 19:02
-Re: Fwd: High availability with hive
Edward Capriolo 2012-07-27, 19:15
Datastax backends the hive metastore into Cassandra making it highly
available, an open sourced Brisk did this originally but the
technology was not actively maintained.
On Fri, Jul 27, 2012 at 3:02 PM, Bejoy Ks <[EMAIL PROTECTED]> wrote:
> Hi Abshiek
> Hadoop 2.0/CDH4 has HA on hdfs level so this HA would be available to all
> clients of hdfs like hive. AFAIK clients don't need any particular
> configuration for this.
> However if your question is does hive have HA, with hadoop HA hive also has
> HA in terms of data. However in hive the metadata is stored in metastore db
> and the only possibility that hinders HA in hive is this db. Normally in
> production clusters the metastore db (mysql db) is backed up frequently, but
> that is just for a back up and recovery mechanism.
> I don't have much knowledge of HA in mysql dbs, but If you can employ HA in
> metastore db then you can claim full HA in hive.
> Bejoy KS
> From: Abhishek <[EMAIL PROTECTED]>
> To: Hive <[EMAIL PROTECTED]>
> Sent: Friday, July 27, 2012 10:10 PM
> Subject: Fwd: High availability with hive
>> Hi all,
>> I am trying to install CDH4, I have a doubt can hive manage HIGH