Hi Zhen - (Please use [email protected] for your technical questions, see https://mail-archives.apache.org/mod_mbox/incubator-impala-dev/).
Yes, the metrics have lots of locks. We thought about moving them to atomic operations (https://issues.cloudera.org/browse/IMPALA-2397), but for now they don't show up in our profiles as a significant consumer of CPU cycles (the locks are rarely contended). Henry On 28 March 2016 at 00:42, zhen <[email protected]> wrote: > impala metric have lots of lock ， I think some info only trace query use > > > -- > You received this message because you are subscribed to the Google Groups > "Impala Dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. >
