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https://issues.apache.org/jira/browse/HBASE-4120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13072700#comment-13072700
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Liu Jia commented on HBASE-4120:
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@Jeff Thanks Jeff, I think to optimize the customer facing tables and control
the resource of batch processing tables it's a good use case for priority.
In Taobao Company, actually the group is used more often than table priority.
Maybe without test or competition on resource, the table priority works quiet.
But the group has a user portal and friendly with the users who not very
familiar with HBase.
The department which holds a shared HBase cluster called Taobao data platform,
and many other departments may not very familiar with HBase want to use HBase.
Most of them would like to test the performance (mostly is the throughput per
region server) with their data and methods first. So the isolation part is very
useful for them,
I think if HBase wants to be a basic component of data center like Hadoop, a
convenient and flexible way to isolate different projects is important.
Jeff, is the mentioned part of the complicate of HBase significantly related
with the Portal and too many JSP pages? What if add a shell tool to replace
them?
Because the actually implementation of group is just depends on region
assignment and movement.
> isolation and allocation
> ------------------------
>
> Key: HBASE-4120
> URL: https://issues.apache.org/jira/browse/HBASE-4120
> Project: HBase
> Issue Type: New Feature
> Components: master, regionserver
> Affects Versions: 0.90.2
> Reporter: Liu Jia
> Attachments: Design_document_for_HBase_isolation_and_allocation.pdf,
> Design_document_for_HBase_isolation_and_allocation_Revised.pdf,
> HBase_isolation_and_allocation_user_guide.pdf,
> Performance_of_Table_priority.pdf, System Structure.jpg
>
>
> The HBase isolation and allocation tool is designed to help users manage
> cluster resource among different application and tables.
> When we have a large scale of HBase cluster with many applications running on
> it, there will be lots of problems. In Taobao there is a cluster for many
> departments to test their applications performance, these applications are
> based on HBase. With one cluster which has 12 servers, there will be only one
> application running exclusively on this server, and many other applications
> must wait until the previous test finished.
> After we add allocation manage function to the cluster, applications can
> share the cluster and run concurrently. Also if the Test Engineer wants to
> make sure there is no interference, he/she can move out other tables from
> this group.
> In groups we use table priority to allocate resource, when system is busy; we
> can make sure high-priority tables are not affected lower-priority tables
> Different groups can have different region server configurations, some groups
> optimized for reading can have large block cache size, and others optimized
> for writing can have large memstore size.
> Tables and region servers can be moved easily between groups; after changing
> the configuration, a group can be restarted alone instead of restarting the
> whole cluster.
> git entry : https://github.com/ICT-Ope/HBase_allocation .
> We hope our work is helpful.
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