Reading and writing during cluster growth phase
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United States of America Patent
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May 21, 2013
Grant Date -
Jun 28, 2012
app pub date -
Mar 6, 2012
filing date -
Apr 19, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A client device configured to write to both a growth server and a live server replica that the growth server is replacing during a growth phase is described herein. The client device first determines the growth server designated to replace a corresponding live server replica of a set of server replicas associated with a storage index. The client device then transmits a write request associated with the storage index to the set of server replicas and to the growth server. The client device may perform the determining based on storage assignment mappings. The storage assignment mappings are provided to the client device by a metadata server while the growth server retrieves data associated with the storage index from the live server replica.
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