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From 吴朱华 <ikew...@gmail.com>
Subject Re: Need to upgrade my one year old build for potential join perf improvement?
Date Tue, 11 Apr 2017 03:22:42 GMT
@Antoni Ivanov
The cluster is new one, its size is small^_^

2017-04-11 0:02 GMT+08:00 Silvius Rus <srus@cloudera.com>:

> On Sun, Apr 9, 2017 at 10:46 PM, Antoni Ivanov <aivanov@vmware.com> wrote:
>
>> @Silvus How would this issue explain High cpu usage. It states the
>> threads are in state “waiting” in the bug.
>>
>
> The message I responded to stated 100% to 200% Catalog CPU usage, which
> means 1 to 2 cores fully used, which translates to 1 to 2 threads actually
> loading (and the other 15 or 14 possibly waiting on the same tables).
> That's behavior consistent with IMPALA-4765.
>
> There could be other reasons for this behavior.  I'm not saying
> IMPALA-4765 is the root cause in this case, just that the described
> behavior matches the known issue.
>

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