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From Siddharth Seth <ss...@apache.org>
Subject Re: Hive on Tez Counters
Date Mon, 25 Aug 2014 18:26:13 GMT
0.5 is almost out, the vote should be closed within a day. You'' have to
use a build of Hive from the Tez branch though.

TEZ-1118 is the patch you'll need to pick up to fix the CPU counters. This
should apply directly on the 0.4 branch, if that's the approach you want to
take.


On Mon, Aug 25, 2014 at 5:38 AM, Suma Shivaprasad <
sumasai.shivaprasad@gmail.com> wrote:

> Hi Siddharth/Gunther,
>
> Thanks for replying to my queries. I was particularly interested in
> the CPU counter
> since I was doing some benchmarking on queries. Can you please clarify if I
> just blindly take a mod(CPU counter) for all tasks and add them up..would
> they be fine..or should I take a patch from the fix and apply it on Tez 0.4
>  to get it working until 0.5 is released?
>
> Thanks
> Suma
>
>
> On Fri, Aug 22, 2014 at 2:55 AM, Gunther Hagleitner <
> ghagleitner@hortonworks.com> wrote:
>
> > Hive logs the same counters regardless of whether you run with Tez or MR.
> > We've removed some counters in hive 0.13 (HIVE-4518) - the specific one
> > you're looking for might be in that list.
> >
> > Thanks,
> > Gunther.
> >
> >
> > On Thu, Aug 21, 2014 at 11:13 AM, Siddharth Seth <sseth@apache.org>
> wrote:
> >
> > > I'll let Hive folks answer the questions about the Hive counters.
> > >
> > > In terms of the CPU counter - that was a bug in Tez-0.4.0, which has
> been
> > > fixed in 0.5.0.
> > >
> > > COMMITTED_HEAP_BYTES just represents the memory available to the JVM
> > > (Runtime.getRuntime().totalMemory()). This will only vary if the VM is
> > > started with a different Xms and Xmx option.
> > >
> > > In terms of Tez, the application logs are currently the best place.
> Hive
> > > may expose these in a more accessible manner though.
> > >
> > >
> > > On Wed, Aug 20, 2014 at 11:16 PM, Suma Shivaprasad <
> > > sumasai.shivaprasad@gmail.com> wrote:
> > >
> > > > Hi,
> > > >
> > > > Needed info on where I can get detailed job counters for Hive on Tez.
> > Am
> > > > running this on a HDP cluster with Hive 0.13 and see only the
> following
> > > job
> > > > counters through Hive Tez in Yarn application logs which I got
> through(
> > > > yarn logs -applicationId ...) .
> > > >
> > > > a. Cannot see any ReduceOperator counters and also only
> > > DESERIALIZE_ERRORS
> > > > is the only counter present in MapOperator
> > > > b. The CPU_MILLISECONDS in some cases in -ve. Is CPU_MILLISECONDS
> > > accurate
> > > > c. What does COMMITTED_HEAP_BYTES indicate?
> > > > d. Is there any other place I should be checking the counters?
> > > >
> > > > [[File System Counters
> > > > FILE: BYTES_READ=512,
> > > > FILE: BYTES_WRITTEN=3079881,
> > > > FILE: READ_OPS=0, FILE: LARGE_READ_OPS=0, FILE: WRITE_OPS=0, HDFS:
> > > > BYTES_READ=8215153, HDFS: BYTES_WRITTEN=0, HDFS: READ_OPS=3, HDFS:
> > > > LARGE_READ_OPS=0, HDFS: WRITE_OPS=0]
> > > >
> > > > [org.apache.tez.common.counters.TaskCounter SPILLED_RECORDS=222543,
> > > > GC_TIME_MILLIS=172, *CPU_MILLISECONDS=-19700*,
> > > > PHYSICAL_MEMORY_BYTES=667566080, VIRTUAL_MEMORY_BYTES=1887797248,
> > > > COMMITTED_HEAP_BYTES=1011023872, INPUT_RECORDS_PROCESSED=222543,
> > > > OUTPUT_RECORDS=222543,
> > > > OUTPUT_BYTES=23543896,
> > > > OUTPUT_BYTES_WITH_OVERHEAD=23989024, OUTPUT_BYTES_PHYSICAL=3079369,
> > > > ADDITIONAL_SPILLS_BYTES_WRITTEN=0, ADDITIONAL_SPILLS_BYTES_READ=0,
> > > > ADDITIONAL_SPILL_COUNT=0]
> > > >
> > > >
> > > > [*org.apache.hadoop.hive.ql.exec.MapOperator*$Counter
> > > > DESERIALIZE_ERRORS=0]]
> > > >
> > > > Thanks
> > > > Suma
> > > >
> > >
> >
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