５。hbase高级部分 - Coprocessor
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?features
1 advantages
?-reduce much data to client to computation
?-converient intersactions to hbase
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2 disvantages
?-just slimilar to common SQL DB,if this CPs are CPU ,MEM or IO intensive,this will slow down the entire cluster performance.so i think if you are run in thise case,let the cluster to in a off-line state is much better.
?-CP is different from Bigtable's one,the former is a plugin in hbase,and the later is a individual process out of server,so this may impact server to run normally.
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