Github user hustfxj commented on the pull request:
https://github.com/apache/storm/pull/1238#issuecomment-199075001
@abhishekagarwal87 thank you. It have better use AtomicReference<T> to
replace the Map, then we can avoid to use the "synchronized". And do
HashBasedTable.create() generate the struct "HashMap<R, HashMap<C, V>>", but
not "Multimap<R, HashMap<C, V>>" ?
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