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Block distribution during decommissioning

Expert Contributor

Hi,

 

I have a cluster with datanodes across two racks, i'm removing one complete rack for OS upgrade. When i tried to decommission one complete rack, the process was stuck. However when i decommissioned all but one datanode in that rack(for testing), the process started. How will the data be replicated to the only existing rack if we take out the complete rack? 

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