[#KATTA-92] Enable query the hadoop version for the katta cluster

Katta

Enable query the hadoop version for the katta cluster

Created: 22/Oct/09 05:29 PM Updated: 22/Oct/09 05:40 PM

Component/s:

cluster

Affects Version/s:

0.5.1

Fix Version/s:

None

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Having a mixture of Hadoop versions in the client / nodes yield errors. It will be a nice to have feature to be able and find the hadoop version of a cluster

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Ted Dunning added a comment - 22/Oct/09 05:40 PM

This could be added to KATTA-68 work by having nodes and clients report their hadoop version info into ZK and then having fsck check for compatibility.

Clients are obviously not always connected, but each time they do connect they could inspect a cluster global ZK file and enter their version info it is isn't already there. Obviously atomic update practice should be followed.