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https://issues.apache.org/jira/browse/HBASE-20105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jean-Marc Spaggiari updated HBASE-20105:
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Release Note:
Introducing hbase.hstore.flush.storagepolicy column family parameter.
public static final String FLUSH_STORAGE_POLICY =
"hbase.hstore.flush.storagepolicy";
This parameters allows the user to target specific storage policy for flushes.
There can be 3 storage policy settings. HBase will use the first configured:
1) Use column family flush policy
2) If none, use column family storage policy
3) If none, use global configured storage policy
The following table creation command will instruct HBase to re-direct all
memstore flushes into SSD drives:
create 't1', {NAME => 'f1', CONFIGURATION => {'hba
se.hstore.flush.storagepolicy' => 'ALL_SSD'}}
was:
Introducing hbase.hstore.flush.storagepolicy column family parameter.
public static final String FLUSH_STORAGE_POLICY =
"hbase.hstore.flush.storagepolicy";
This parameters allows the user to target specific storage policy for flushes.
There can be 3 storage policy settings. HBase will use the first configured.
1)
The following table creation command will instruct HBase to re-direct all
memstore flushes into SSD drives:
create 't1', {NAME => 'f1', CONFIGURATION => {'hba
se.hstore.flush.storagepolicy' => 'ALL_SSD'}}
> Allow flushes to target SSD storage
> -----------------------------------
>
> Key: HBASE-20105
> URL: https://issues.apache.org/jira/browse/HBASE-20105
> Project: HBase
> Issue Type: New Feature
> Components: Performance, regionserver
> Affects Versions: hbase-2.0.0-alpha-4
> Reporter: Jean-Marc Spaggiari
> Assignee: Jean-Marc Spaggiari
> Priority: Major
> Fix For: 2.0.0
>
> Attachments: HBASE-20105-v0.patch, HBASE-20105-v1.patch,
> HBASE-20105-v2.patch, HBASE-20105-v3.patch, HBASE-20105-v4.patch,
> HBASE-20105-v5.patch, HBASE-20105-v6.patch
>
>
> On heavy writes usecases, flushes are compactes together pretty quickly.
> Allowing flushes to go on SSD allows faster flush and faster first
> compactions. Subsequent compactions going on regular storage.
>
> I will be interesting to have an option to target SSD for flushes.
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