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Impact of growing a Datanode Volume

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Rising Star

I think I am asking a slightly different question than is here

https://community.hortonworks.com/questions/6796/how-to-increase-datanode-filesystem-size.html

but a solution should help both.

SAN issues aside!

Is there a method to expand the volume under a datanode directory and have HDFS recognize the new allocated space? For instance if we were to mount a virtual file system, say netapp, in Centos and then expand that filesystem: How would one make the change known to HDFS?

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Master Mentor

@wsalazar

You can increase the size and on the safe side run rebalance https://wiki.apache.org/hadoop/FAQ

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