Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network monitoring
Reexamination Certificate
2007-04-17
2007-04-17
Pwu, Jeffrey (Department: 2143)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network monitoring
C709S214000, C709S220000, C709S226000
Reexamination Certificate
active
10252232
ABSTRACT:
Data stored within a cluster may be distributed among nodes each storing a portion of the data. The data may be replicated wherein different nodes store copies of the same portion of the data. In response to detecting the failure of a node, the cluster may initiate a timeout period. If the node remains failed throughout the timeout period, the cluster may copy the portion of the data stored on the failed node onto one or more other nodes of the cluster. If the node returns to the cluster during the timeout period, the cluster may maintain the copy of the data on the previously failed node without copying the portion of the data stored on the failed node onto any other nodes. By delaying self-healing of the cluster for the timeout period, an unbalanced data distribution may be avoided in cases where a failed node quickly rejoins the cluster.
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Dinker Darpan
Gopinath Pramod
Kannan Mahesh
Kowert Robert C.
Meyertons, Hood, Kivlin, Kowert & Goetzel P.c.
Nguyen Phuoc H
Pwu Jeffrey
Sun Microsystems Inc.
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