Liu Shaohui created KYLIN-4175:
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Summary: Support secondary hbase storage config for hbase cluster
migration
Key: KYLIN-4175
URL: https://issues.apache.org/jira/browse/KYLIN-4175
Project: Kylin
Issue Type: Improvement
Reporter: Liu Shaohui
Assignee: Liu Shaohui
Currently when migrating a kylin cluster from on data center to the other or
the hbase cluster the kylin depends on will be changed from one cluster to the
other, there will be a long down time to migrating the history data from one
cluster to the other or we must rebuild all the history data of cube in the
other cluster.
In xiaomi, we added the support of secondary hbase storage and made the kylin
cluster can query cube data from the old hbase cluster during the migration.
As a result, the migration is very smooth with minimum down time.
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