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HBase >> mail # user >> Slow scan request with basic test ?


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Simon Majou 2013-06-14, 14:39
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Jean-Marc Spaggiari 2013-06-14, 15:07
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Simon Majou 2013-06-14, 15:10
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Jean-Marc Spaggiari 2013-06-14, 15:19
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Re: Slow scan request with basic test ?
Yes I have 127.0.0.1       localhost in my /etc/hosts

I run on Windows with cygwin, without any VM.

Nothing special is running on my laptop, CPU & memory are free.

I tracked with tail -f the different log files (master, region, zookeeper)
while doing the scan, and there is no log written ...
Simon
On Fri, Jun 14, 2013 at 5:19 PM, Jean-Marc Spaggiari <
[EMAIL PROTECTED]> wrote:

> That's not a normal behavior.
>
> Have you configured your hosts file? I think you did since it's
> working fine. Are you running into a VM on your laptop? Or directly on
> the laptop? Anything else is running at the same time? Also, can you
> take a look into the logs and see if there is anything displayed?
>
> Thanks,
>
> JM
>
> 2013/6/14 Simon Majou <[EMAIL PROTECTED]>:
> > Hi,
> >
> > I am using the latest stable (0.94.8), I have a i3 laptop with a SSD.
> >
> > I am doing the basic test of the documentation :
> > http://hbase.apache.org/book/quickstart.html#shell_exercises
> >
> > hbase(main):003:0> create 'test', 'cf'
> > 0 row(s) in 1.2200 seconds
> > hbase(main):003:0> list 'test'
> > ..
> > 1 row(s) in 0.0550 seconds
> > hbase(main):004:0> put 'test', 'row1', 'cf:a', 'value1'
> > 0 row(s) in 0.0560 seconds
> > hbase(main):005:0> put 'test', 'row2', 'cf:b', 'value2'
> > 0 row(s) in 0.0370 seconds
> > hbase(main):006:0> put 'test', 'row3', 'cf:c', 'value3'
> > 0 row(s) in 0.0450 seconds
> >
> >
> > Here is what I got :
> >
> > create 'test', 'cf'
> > create 'test', 'cf'
> > 0 row(s) in 9.1360 seconds
> >
> > list 'test'
> > list 'test'
> > TABLE
> > test
> > 1 row(s) in 0.0280 seconds
> >
> > put 'test', 'row1', 'cf:a', 'value1'
> > put 'test', 'row1', 'cf:a', 'value1'
> > 0 row(s) in 4.6200 seconds
> >
> > put 'test', 'row2', 'cf:b', 'value2'
> > put 'test', 'row2', 'cf:b', 'value2'
> > 0 row(s) in 0.0080 seconds
> >
> > put 'test', 'row3', 'cf:c', 'value3'
> > put 'test', 'row3', 'cf:c', 'value3'
> > 0 row(s) in 0.0060 seconds
> >
> > scan 'test'
> > scan 'test'
> > ROW  COLUMN+CELL
> >  row1 column=cf:a, timestamp=1371222264939, value=value1
> >  row2 column=cf:b, timestamp=1371222269032, value=value2
> >  row3 column=cf:c, timestamp=1371222275823, value=value3
> > 3 row(s) in 4.5920 seconds
> >
> >
> > It seems to have some ~4.5s latency, appearing 2x when creating a table,
> > and appearing on the first put and on scans.
> >
> > Simon
> >
> >
> > Simon
> >
> >
> > On Fri, Jun 14, 2013 at 5:07 PM, Jean-Marc Spaggiari <
> > [EMAIL PROTECTED]> wrote:
> >
> >> Hi Simon,
> >>
> >> Can you please provide more details? Which version are you testing
> >> with, what is the test you are doing, on what kind of computer this is
> >> running?
> >>
> >> Thanks,
> >>
> >> JM
> >>
> >> 2013/6/14 Simon Majou <[EMAIL PROTECTED]>:
> >> > Hello,
> >> >
> >> > When doing the basic test after installing, the scan request is really
> >> slow
> >> > (~5sec). There are no errors in the logs. Is it normal ? Why it is so
> ?
> >> >
> >> > Simon
> >>
>
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Jean-Marc Spaggiari 2013-06-14, 15:47