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From "Steven Noels (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-3247) Changes API: API for pulling edits from HBase
Date Wed, 24 Nov 2010 22:42:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12935552#action_12935552
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Steven Noels commented on HBASE-3247:
-------------------------------------

Well, we're doing mapreduce for initial SOLR population, which might be a bit too involved
compared with soemthing like a Changes API. I reckon our Indexer could be made configurable
to connect to ES as well. i'll have Evert look into this issue, and comment to it, he just
did a writeup on the Rowlog on our blog today: http://outerthought.org/blog/449-ot.html

The thing I would object to if I were a non-Lily person, would be that we need tracking/status
data in user-visible columns.

> Changes API: API for pulling edits from HBase
> ---------------------------------------------
>
>                 Key: HBASE-3247
>                 URL: https://issues.apache.org/jira/browse/HBASE-3247
>             Project: HBase
>          Issue Type: Task
>            Reporter: stack
>
> Talking to Shay from Elastic Search, he was asking where the Changes API is in HBase.
 Talking more -- there was a bit of beer involved so apologize up front -- he wants to be
able to bootstrap an index and thereafter ask HBase for changes since time t.  We thought
he could tie into the replication stream, but rather he wants to be able to pull rather than
have it pushed to him (in case he crashes, etc. so on recovery he can start pulling again
from last good edit received).  He could do the bootstrap with a Scan.  Thereafter, requests
to pull from hbase would pass a marker of some  sort.  HBase would then give out edits that
came in after this marker, in batches, along with an updated marker.

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