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https://issues.apache.org/jira/browse/HBASE-18448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16103448#comment-16103448
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Ajay Jadhav commented on HBASE-18448:
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Yes, that is possible but in our case, since we are using S3 as the data store
for HBase, list call for S3 objects could be quite expensive in case of a large
number of objects. Considering this, we decided not to have a background thread
to do the periodic refresh. We are looking into ways to resolve this but for
now, the only way is to do a manual refresh on the replica.
> Added support for refreshing HFiles through API and shell
> ---------------------------------------------------------
>
> Key: HBASE-18448
> URL: https://issues.apache.org/jira/browse/HBASE-18448
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0, 1.3.1
> Reporter: Ajay Jadhav
> Assignee: Ajay Jadhav
> Priority: Minor
> Fix For: 1.4.0
>
> Attachments: HBASE-18448.branch-1.001.patch,
> HBASE-18448.branch-1.002.patch
>
>
> In the case where multiple HBase clusters are sharing a common rootDir, even
> after flushing the data from
> one cluster doesn't mean that other clusters (replicas) will automatically
> pick the new HFile. Through this patch,
> we are exposing the refresh HFiles API which when issued from a replica will
> update the in-memory file handle list
> with the newly added file.
> This allows replicas to be consistent with the data written through the
> primary cluster.
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