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https://issues.apache.org/jira/browse/HBASE-17825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16379382#comment-16379382
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Josh Elser commented on HBASE-17825:
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{code:java}
+ List<TableName> list = new ArrayList<TableName>();{code}
Could set the size on the ArrayList.
Seems fine otherwise.
> Backup: further optimizations
> -----------------------------
>
> Key: HBASE-17825
> URL: https://issues.apache.org/jira/browse/HBASE-17825
> Project: HBase
> Issue Type: Improvement
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Priority: Critical
> Labels: backup
> Fix For: 3.0.0
>
> Attachments: HBASE-17825-v1.patch, HBASE-17825-v2.patch,
> HBASE-17825-v3.patch, HBASE-17825-v4.patch, HBASE-17825-v5.patch
>
>
> Some phases of backup and restore can be optimized:
> # WALPlayer support for multiple tables
> # Run DistCp once per all tables during backup/restore
> The eventual goal:
> # 2 M/R jobs per backup/restore
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