发明名称 |
METHOD FOR AUTOMATED SCALING OF MASSIVE PARALLEL PROCESSING (MPP) DATABASE |
摘要 |
A massively parallel processing (MPP) database can be re-partitioned/re-balanced while remaining on-line through a staged migration procedure. Staged migration may include a first stage and a second stage. During the first stage, entries in an existing partition are reallocated to the new partition, and the catalog is updated to associate the re-allocated entries with both the existing partition and the new partition such that queries for the re-allocated entries are directed toward the existing partition and the new partition. During the second stage, the re-allocated entries are migrated from the existing partition to the new partition, and after the migration is complete, the catalog is re-updated to associate the migrated entries with the new partition such that new queries are directed toward the new partition. |
申请公布号 |
EP2917854(A1) |
申请公布日期 |
2015.09.16 |
申请号 |
EP20130857829 |
申请日期 |
2013.12.02 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
JAGTIANI, KAMINI;SIM-TANG, SIEW;SUN, JASON YANG;VARAKUR, GANGAVARA PRASAD |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
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