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https://issues.apache.org/jira/browse/HBASE-14511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Rodionov updated HBASE-14511:
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Description:
During my work on a new compaction policies (HBASE-14468, HBASE-14477) I had to
modify the existing code of a StoreFile.Writer to add additional meta-info
required by these new policies. I think that it should be done by means of a
new Plugin framework, because this seems to be a general capability/feature.
As a future enhancement this can become a part of a more general
StoreFileWriter/Reader plugin architecture. But I need only Meta section of a
store file.
This could be used, for example, to collect rowkeys distribution information
during hfile creation. This info can be used later to find the optimal region
split key or to create optimal set of sub-regions for M/R jobs or other jobs
which can operate on a sub-region level.
was:
During my work on a new compaction policies (HBASE-14468, HBASE-14477) I had to
modify the existing code of a StoreFile.Writer to add additional meta-info
required by these new policies. I think that it should be done by means of a
new Plugin framework, because this seems to be a general capability/feature.
As a future enhancement this can become a part of a more general
StoreFileWriter/Reader plugin architecture. But I need only Meta section of a
store file.
> StoreFile.Writer Meta Plugin
> ----------------------------
>
> Key: HBASE-14511
> URL: https://issues.apache.org/jira/browse/HBASE-14511
> Project: HBase
> Issue Type: New Feature
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Attachments: HBASE-14511.v1.patch
>
>
> During my work on a new compaction policies (HBASE-14468, HBASE-14477) I had
> to modify the existing code of a StoreFile.Writer to add additional meta-info
> required by these new policies. I think that it should be done by means of a
> new Plugin framework, because this seems to be a general capability/feature.
> As a future enhancement this can become a part of a more general
> StoreFileWriter/Reader plugin architecture. But I need only Meta section of a
> store file.
> This could be used, for example, to collect rowkeys distribution information
> during hfile creation. This info can be used later to find the optimal region
> split key or to create optimal set of sub-regions for M/R jobs or other jobs
> which can operate on a sub-region level.
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