impala-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Henry Robinson <he...@apache.org>
Subject Re: impala metric should support manual opening and closing function, not always running
Date Mon, 28 Mar 2016 23:49:33 GMT
Hi Zhen -

(Please use dev@impala.incubator.apache.org 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 <yyzzjj0515@gmail.com> 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 impala-dev+unsubscribe@cloudera.org.
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message