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From Wei-Chiu Chuang <weic...@cloudera.com.INVALID>
Subject Re: HBase top activity
Date Wed, 09 Jan 2019 12:38:37 GMT
FWIW, Andrew proposed a htop utility:
https://issues.apache.org/jira/browse/HBASE-11062

On Wed, Jan 9, 2019 at 4:36 AM Wellington Chevreuil <
wellington.chevreuil@gmail.com> wrote:

> I don't think it is possible to track individual scans resources usage,
> current available JMX metrics are an aggregation of all request types
> (scanNext, append, get, delete) per regions level at individual RSes, and
> these are basically counts on the number of those requests. Resources usage
> are measured at RS process level, so that also adds a challenge to account
> those for individual scans. Sure, you could break those down by looking at
> each thread usage with some monitoring tool such as VisualVM, but then you
> would still need to map each RPC handler to an specific scan, and depending
> on how large the result, a single scan would be addressed by different
> handlers every time it calls "next" fetch another batch of results it's
> iterating through.
>
> Em seg, 7 de jan de 2019 às 14:27, shicheng31604@gmail.com <
> shicheng31604@gmail.com> escreveu:
>
> > Maybe  coprocessor can  help you in some way.
> >
> >
> >
> > shicheng31604@gmail.com
> >
> > From: Meirav Malka
> > Date: 2019-01-07 19:22
> > To: Hbase User Group; dev
> > Subject: HBase top activity
> > Hi,
> >
> > Does anyone know i there's a way to get the current operations running
> in a
> > HBase cluster?
> > We want to be able to detect the running scans, their execution time,
> > number of executions,cpu, memory and io.(as can be found in Oracle
> > database)
> > Is there any tracking of this data in HBase?
> >
> > Thanks
> >
>

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