impala-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Alex Behm <alex.b...@cloudera.com>
Subject Re: impalad using 400% CPU
Date Wed, 25 Jan 2017 06:59:14 GMT
Thanks for the clarifications.
Any chance you can do a "jstack" on the coordinating impalad when in that
bad state? If it's stuck in the JVM we should be able to see where.

On Tue, Jan 24, 2017 at 10:51 PM, Darren Hoo <darren.hoo@gmail.com> wrote:

> Hi Alex,
>
> The GET_TALBES statement is due to one of our applications using C3P0 for
> jdbc connection pooling.
> It  will test Connections by calling the getTables() method on a
> Connection's associated DatabaseMetaData object.
>
> We only have 26 tables, and we don't use sentry.
>
>
>
> On Wed, Jan 25, 2017 at 2:11 PM, Alex Behm <alex.behm@cloudera.com> wrote:
>
>> Can you elaborate on what your GET_TABLES was doing? Do you have many
>> tables? Are you running Sentry and have many roles/grants?
>>
>> On Tue, Jan 24, 2017 at 9:15 PM, Darren Hoo <darren.hoo@gmail.com> wrote:
>>
>>> forgot to include VERSION info:
>>>
>>> +-----------------------------------------------------------
>>> --------------------------------------+
>>>
>>> | version()
>>>                           |
>>>
>>> +-----------------------------------------------------------
>>> --------------------------------------+
>>>
>>> | impalad version 2.7.0-IMPALA_KUDU-cdh5 RELEASE (build
>>> 10d4ebec3c23961218e972e74e9d342ffc417af1) |
>>>
>>> | Built on Mon Nov 21 23:11:10 PST 2016
>>>                           |
>>>
>>> +-----------------------------------------------------------
>>> --------------------------------------+
>>>
>>>
>>>
>>
>

Mime
View raw message