Changes between Initial Version and Version 1 of Ticket #2123


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Timestamp:
2013-11-30T20:35:16Z (10 years ago)
Author:
amontero
Comment:

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  • Ticket #2123 – Description

    initial v1  
    2323Share placement as of it is today, cannot guarantee that no share is wrongly placed in a node where there is already one. With a k=1/N=2, if a cron triggered repair is run when node is isolated, we would be wasting space, since the local node already holds shares enough to retrieve the whole file.
    2424
    25 Worse still: one single node holding both of N shares would prevent arriving nodes to get their replicas (their own local share), since repairer would be satisfied with both shares being present in the grid, even in the same node.
     25Worse still: one single node holding both of N shares would prevent arriving nodes to get their replicas (their own local share), since repairer would be satisfied with both shares being present in the grid, even in the same node. This could lead to shares never achieving any replication outside of the creator node, creating a SPOF for data.
    2626
    2727=== Proposed solution ===