Stado

Qestion about gs-execdb.sh

Asked by Xiaobo Gu

# gs-execdb.sh

# Executes a command against all underlying database instances

Is the metadata database included?

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Alvin Peng
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Alvin Peng (pengalvin) said : 		#1

No. "Underlying database instances" means only the data nodes.

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Xiaobo Gu (guxiaobo1982) said : 		#2

Thank you Alvin, is the PostgreSQL instance which the coordinator connects to a data node?

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Best Alvin Peng (pengalvin) said : 		#3

Yes.

"To execute some complex queries coordinator needs to store intermediate temporary data to a database. One of the node databases is used for that." (https://answers.launchpad.net/stado/+question/201082)

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Xiaobo Gu (guxiaobo1982) said : 		#4

Thanks Alvin Peng, that solved my question.