Data Systems
skew
uneven distribution
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Also defined on Batch Processing.
More terms from this board
- fixed-partition-count / dynamic partitioningpre-split many / split-on-growth
- global (term-partitioned) indexindex split by term (cross-partition writes)
- gossipnodes share the map peer-to-peer
- hot spot / hot keyan overloaded partition / single key
- local (document-partitioned) indexeach partition indexes its own docs (scatter/gather reads)
- MPPmassively parallel processing (analytic queries)
- partition / sharda slice of the data
- range vs hash partitioningsorted intervals vs scramble
- rebalancingredistribute partitions across nodes
- request routingfind the node for a key
- secondary indexlookup by a non-key field
- ZooKeepercoordination service holding the map