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qinhao <hao.qin@hp.com>
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on 04 Mar 15
OSIM (Optimizer Simulator) redesign 1.
Simulate query plan generation of production cluster on dev workstation,
by collecting information fr… Show more
OSIM (Optimizer Simulator) redesign 1.

Simulate query plan generation of production cluster on dev workstation,

by collecting information from production cluster, and restore it on dev worksation.

--runnig on production clusters, collect table DDLs, statistics, CQD, to osim-directory,

--the directory path can either full(absolute) or relative.

osim capture location '<osim-directory>'[, force];

--runing queries on cluster

osim capture stop;

--restore DDLs, CQDs, statistics and cluster information.

osim load from '<osim-directory>';

--setup runtime information, like cpu number, node number.

osim simulate start|continue '<osim-directory>';

Change-Id: I30882e87a6ea0f08c9aa64685705eebebcbb3bf0

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