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https://issues.apache.org/jira/browse/HBASE-9606?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13774705#comment-13774705
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Jean-Marc Spaggiari commented on HBASE-9606:
--------------------------------------------
One quick question here.
{code}
+ int scannerCaching =
configuration.getInt(HConstants.HBASE_META_SCANNER_CACHING,
+ HConstants.DEFAULT_HBASE_META_SCANNER_CACHING);
+ if (rowUpperLimit <= scannerCaching) {
+ scan.setSmall(true);
+ }
+ int rows = Math.min(rowLimit, scannerCaching)
{code}
Should we not set the setSmall flag on the rows value and not just only the
rowUpperLimit?
Like:
+ int scannerCaching =
configuration.getInt(HConstants.HBASE_META_SCANNER_CACHING,
+ HConstants.DEFAULT_HBASE_META_SCANNER_CACHING);
+ int rows = Math.min(rowLimit, scannerCaching);
+ if (rowUpperLimit <= rows) {
+ scan.setSmall(true);
+ }
{code}
Or something similar?
> Apply small scan to meta scan where rowLimit is low
> ---------------------------------------------------
>
> Key: HBASE-9606
> URL: https://issues.apache.org/jira/browse/HBASE-9606
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: Ted Yu
> Fix For: 0.98.0
>
> Attachments: 9606-v2.txt, small-v3.txt
>
>
> HBASE-9488 added the feature for small scan where RPC calls are reduced.
> We can apply small scan to MetaScanner#metaScan() where rowLimit is low.
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