how does write request send to new node when rebalancing before affinity changed?

[bluehu <hu...@gmail.com>]

hi,
when adding a new node to a cluster, the new node will demand some
partitions from other nodes.
if a write request comes when rebalancing, how does it send to the new node
according to old affinity?



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Re: how does write request send to new node when rebalancing before affinity changed?

[dkarachentsev <dk...@gridgain.com>]

Hi,

Cache requests will continue going to old nodes unless re-balancing
finished. After re-balancing new affinity mappings applied and discarded the
old ones, so you request only actual data. In details, before sending
request to node, requester checks a last valid topology version, and gets
affinity mapping from history by this version.

Thanks!
-Dmitry.



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