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
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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