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https://issues.apache.org/jira/browse/HBASE-15372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Rodionov resolved HBASE-15372.
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Resolution: Invalid
> HBase Backup/Restore Phase 2: Keep WAL files in a centralized place to avoid
> duplication
> ----------------------------------------------------------------------------------------
>
> Key: HBASE-15372
> URL: https://issues.apache.org/jira/browse/HBASE-15372
> Project: HBase
> Issue Type: Improvement
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
>
> Currently, we keep WAL file per table in backup site, this creates
> significant data duplication in case of many tables in a backup set. We have
> to keep all WAL files in a single place and keep track of WAL files involved
> per table/backup id as links (references)
> This is not only the data duplication issue, but a performance issue as well
> (we copy the same file over and over again for every table in a backup set).
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