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From Jason Wee <>
Subject upgrade from 1.0.12 to 1.1.12
Date Tue, 24 Mar 2015 10:13:42 GMT

Reading this documentation

If you are upgrading to Cassandra 1.1.9 from a version earlier than
1.1.7, all nodes must be upgraded before any streaming can take place.
Until you upgrade all nodes, you cannot add version 1.1.7 nodes or
later to a 1.1.7 or earlier cluster.

Does this apply for upgrade to cassandra 1.1.12 ?

What is cassandra streaming ? Is repair (nodetool or background),
hinted handoff, antientropy consider streaming? if yes, how do we
prevent streaming after a node is upgraded to 1.1.12 in a 1.0.12
cluster environment?



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