Hi all,
I have a C* cluster with five nodes and my cassandra version is 2.1.1 and
we also enable "Hinted Handoff" . Everything is fine while we use C* cluster to
store up to 10 billion rows of data. But now we have a problem. During our
test, after we import up to 40 billion rows of data into C* cluster, we
manually remove the network cable of one node(eg: there are 5 nodes, and we
remove just one network cable of node to simulate minor network problem with C*
cluster), then we create another table and import 30 million into this table.
Before we reconnect the network cable of that node, we export the data of the
new table, we can export all 30 million rows many times. But after we reconnect
the network cable, we export the data immediately and we cannot all the 30
million rows of data. Maybe a fewer minutes later, after the C* cluster balance
all the datas( my guess) , then we do the exporting , we could export all the
30 million rows of data.
Is there something wrong with "Hinted Handoff"? Whille coping data from
coordinator node to the newer incoming node, is the newer node can response the
client`s request? Thanks in advances!
jerry
