Actually, hive.support.concurrency <https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.support.concurrency> is false by default so you should set it to true for locking.
-- Lefty On Fri, Apr 3, 2015 at 4:52 PM, Lefty Leverenz <leftylever...@gmail.com> wrote: > I'm no expert, but I don't think SELECTs are broken by an INSERT. See > Locking <https://cwiki.apache.org/confluence/display/Hive/Locking> for > details. > > As I understand it, the INSERT needs an exclusive lock on the partition > which it cannot get while the partition has a shared lock on it. > > Can someone confirm or correct this? > > -- Lefty > > On Fri, Apr 3, 2015 at 4:33 PM, Thomas Kwan <thomas.k...@manage.com> > wrote: > >> Hi there, >> >> If we have multiple SELECTs going on for a table, will doing a "INSERT >> OVERWRITE" to replace a partition break those SELECTs? >> >> thanks in advance >> >> >
