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https://issues.apache.org/jira/browse/HBASE-3005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12910057#action_12910057
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HBase Review Board commented on HBASE-3005:
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Message from: "Pranav Khaitan" <[email protected]>
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This is an automatically generated e-mail. To reply, visit:
http://review.cloudera.org/r/859/
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Review request for hbase and Kannan Muthukkaruppan.
Summary
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Skip between timestamps to avoid the unnecessary read for all the blocks which
come in between.
For example:
If we have timestamps from 1 to 1000 for a particular row, family, qualifier
and we want to read only timestamps 990 and 10, then we should be able to read
990 and then jump to 10 instead of doing a sequential read including everything
in between.
This addresses bug HBASE-3005.
http://issues.apache.org/jira/browse/HBASE-3005
Diffs
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trunk/src/main/java/org/apache/hadoop/hbase/KeyValue.java 997639
trunk/src/main/java/org/apache/hadoop/hbase/filter/TimestampsFilter.java
997639
Diff: http://review.cloudera.org/r/859/diff
Testing
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All tests using TimestampFilter passing
Reviewed by Kannan
Thanks,
Pranav
> Add reseek optimization for fetching multiple versions via TimestampsFilter
> ---------------------------------------------------------------------------
>
> Key: HBASE-3005
> URL: https://issues.apache.org/jira/browse/HBASE-3005
> Project: HBase
> Issue Type: Improvement
> Components: filters
> Reporter: Pranav Khaitan
> Assignee: Pranav Khaitan
> Attachments: HBASE-PUBLIC-3005-V1.patch
>
>
> Skip between timestamps to avoid the unnecessary read for all the blocks
> which come in between.
> For example:
> If we have timestamps from 1 to 1000 for a particular row, family, qualifier
> and we want to read only timestamps 990 and 10, then we should be able to
> read 990 and then jump to 10 instead of doing a sequential read including
> everything in between.
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