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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: Replication?
Date Wed, 10 Dec 2014 01:00:00 GMT
Hum. Thanks for al those updates.

So are we saying that master/master HBase replication should be avoided
when using Phoenix with latest stable version?

2014-12-09 19:51 GMT-05:00 Andrew Purtell <apurtell@apache.org>:

> You also need to replicate the Phoenix system tables. It's still necessary
> to run DDL operations on both clusters to keep Phoenix schema and HBase
> tables in sync. Use IF EXISTS or IF NOT EXISTS to avoid DDL statement
> failures. Phoenix should do the right thing. If not, it's a bug.
>
> The sequence table is interesting. The Phoenix client caches a range of
> sequence values to use when inserting data that include generated sequence
> values. You'll want to always grab a new cached range of sequence values
> when failing over from one site to another and back to avoid potential
> duplication. It's possible upon site failure that the latest updates to the
> sequence table did not replicate. Or,
> https://issues.apache.org/jira/browse/PHOENIX-1422 would side step this
> issue if implemented.
>
>
> On Mon, Dec 8, 2014 at 10:22 PM, Jeffrey Zhong <jzhong@hortonworks.com>
> wrote:
>
>>
>> You need to enable replication on both data & index table in Hbase level
>> using Phoenix 4.2(previous 4.2 Phoenix version may have issues on local
>> index). There is a test case MutableIndexReplicationIT where you can see
>> some details. Ideally Phoenix should provide a customer replication sink so
>> that a user doesn't have to setup replication on index table.
>>
>> From: Jean-Marc Spaggiari <jean-marc@spaggiari.org>
>> Reply-To: <user@phoenix.apache.org>
>> Date: Monday, December 8, 2014 at 9:29 AM
>> To: user <user@phoenix.apache.org>
>> Subject: Replication?
>>
>> Hi,
>>
>> How do we replicate data between 2 cluster when Phoenix is in the picture?
>>
>> Can we simply replicate the table we want from A to B and on cluster B
>> Phoenix will do the required re-indexing? Or should we also replicate the
>> Phoenix tables too?
>>
>> Thanks,
>>
>> JM
>>
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>
>
>
>
> --
> Best regards,
>
>    - Andy
>
> Problems worthy of attack prove their worth by hitting back. - Piet Hein
> (via Tom White)
>

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