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https://issues.apache.org/jira/browse/HBASE-12332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14348218#comment-14348218
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Jingcheng Du commented on HBASE-12332:
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Hi [~jmhsieh], I checked the comments in this JIRA, it seems V4(fileLink one)
had a performance issue, I am sure V5 has a better performance.
Having V5 will also improve the performance when reading cells from the file
links after restoring snapshots than the current code in hbase-11339. Do we
have a plan to review and commit this patch to the branch? Please advise.
Thanks.
> [mob] use filelink instead of retry when resolving mobfiles
> -----------------------------------------------------------
>
> Key: HBASE-12332
> URL: https://issues.apache.org/jira/browse/HBASE-12332
> Project: HBase
> Issue Type: Sub-task
> Components: mob
> Affects Versions: hbase-11339
> Reporter: Jonathan Hsieh
> Assignee: Jiajia Li
> Fix For: hbase-11339
>
> Attachments: HBASE-12332-V1.diff, HBASE-12332-V2.patch,
> HBASE-12332-V3.patch, HBASE-12332-V5.patch, hbase-12332.link.v4.patch,
> hbase-12332.patch
>
>
> in the snapshot code, hmobstore was modified to traverse an hfile link to a
> mob. Ideally this should use the transparent filelink code to read the data.
> Also there will likely be some issues with the mob file cache with these
> links.
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