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https://issues.apache.org/jira/browse/HBASE-14643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Heng Chen updated HBASE-14643:
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Attachment: HBASE-14643_v5.patch
{quote}
public Comparator getCellComparator() {
Method name can be getComparator().
{quote}
Update patch as suggestion.
> Avoid Splits from once again opening a closed reader for fetching the first
> and last key
> ----------------------------------------------------------------------------------------
>
> Key: HBASE-14643
> URL: https://issues.apache.org/jira/browse/HBASE-14643
> Project: HBase
> Issue Type: Improvement
> Components: regionserver
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: Heng Chen
> Attachments: HBASE-14643.patch, HBASE-14643_v1.patch,
> HBASE-14643_v2.patch, HBASE-14643_v3.patch, HBASE-14643_v4.patch,
> HBASE-14643_v5.patch
>
>
> Currently split flow is such that we close the parent region and all its
> store file readers are also closed. After that inorder to split the
> reference files we need the first and last keys for which once again open the
> readers on those store files. This could be costlier operation considering
> the fact that it has to contact the HDFS for this close and open operation.
> This JIRA is to see if we can improve this.
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