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From "Durity, Sean R" <>
Subject RE: Pending-range-calculator during bootstrapping
Date Fri, 22 Sep 2017 11:42:20 GMT
I don't know a specific issue with these versions, but in general you do not want to do ANY
streaming operations (bootstrap or repair) between Cassandra versions. I would get all the
nodes (in all DCs) to the same version and then try the bootstrap.

Sean Durity

From: Peng Xiao []
Sent: Friday, September 22, 2017 3:56 AM
To: user <>
Subject: Pending-range-calculator during bootstrapping

Dear All,

when we are bootstrapping a new node,we are experiencing high cpu load which affect the rt
,and we noticed that it's mainly costing on Pending-range-calculator ,this did not happen
We are using C* 2.1.13 in one DC,2.1.18 in another DC.
Could anyone please advise on this?

Peng Xiao


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