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From Shahab Yunus <shahab.yu...@gmail.com>
Subject Re:
Date Sat, 01 Jun 2013 16:35:02 GMT
HI Harsh,

Quick question though: why do you think it only happens if the OP 'uses
security' as he mentioned?

Regards,
Shahab


On Sat, Jun 1, 2013 at 11:49 AM, Harsh J <harsh@cloudera.com> wrote:

> Does smell like a bug as that number you get is simply Long.MAX_VALUE,
> or 8 exbibytes.
>
> Looking at the sources, this turns out to be a rather funny Java issue
> (there's a divide by zero happening and [1] suggests Long.MAX_VALUE
> return in such a case). I've logged a bug report for this at
> https://issues.apache.org/jira/browse/MAPREDUCE-5288 with a
> reproducible case.
>
> Does this happen consistently for you?
>
> [1]
> http://docs.oracle.com/javase/6/docs/api/java/lang/Math.html#round(double)
>
> On Sat, Jun 1, 2013 at 7:27 PM, Lanati, Matteo <Matteo.Lanati@lrz.de>
> wrote:
> > Hi all,
> >
> > I stumbled upon this problem as well while trying to run the default
> wordcount shipped with Hadoop 1.2.0. My testbed is made up of 2 virtual
> machines: Debian 7, Oracle Java 7, 2 GB RAM, 25 GB hard disk. One node is
> used as JT+NN, the other as TT+DN. Security is enabled. The input file is
> about 600 kB and the error is
> >
> > 2013-06-01 12:22:51,999 WARN org.apache.hadoop.mapred.JobInProgress: No
> room for map task. Node 10.156.120.49 has 22854692864 bytes free; but we
> expect map to take 9223372036854775807
> >
> > The logfile is attached, together with the configuration files. The
> version I'm using is
> >
> > Hadoop 1.2.0
> > Subversion
> https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2 -r
> 1479473
> > Compiled by hortonfo on Mon May  6 06:59:37 UTC 2013
> > From source with checksum 2e0dac51ede113c1f2ca8e7d82fb3405
> > This command was run using
> /home/lu95jib/hadoop-exmpl/hadoop-1.2.0/hadoop-core-1.2.0.jar
> >
> > If I run the default configuration (i.e. no securty), then the job
> succeeds.
> >
> > Is there something missing in how I set up my nodes? How is it possible
> that the envisaged value for the needed space is so big?
> >
> > Thanks in advance.
> >
> > Matteo
> >
> >
> >
> >>Which version of Hadoop are you using. A quick search shows me a bug
> >>https://issues.apache.org/jira/browse/HADOOP-5241 that seems to show
> >>similar symptoms. However, that was fixed a long while ago.
> >>
> >>
> >>On Sat, Mar 23, 2013 at 4:40 PM, Redwane belmaati cherkaoui <
> >>reduno1985@googlemail.com> wrote:
> >>
> >>> This the content of the jobtracker log file :
> >>> 2013-03-23 12:06:48,912 INFO org.apache.hadoop.mapred.JobInProgress:
> Input
> >>> size for job job_201303231139_0001 = 6950001. Number of splits = 7
> >>> 2013-03-23 12:06:48,925 INFO org.apache.hadoop.mapred.JobInProgress:
> >>> tip:task_201303231139_0001_m_000000 has split on
> >>> node:/default-rack/hadoop0.novalocal
> >>> 2013-03-23 12:06:48,927 INFO org.apache.hadoop.mapred.JobInProgress:
> >>> tip:task_201303231139_0001_m_000001 has split on
> >>> node:/default-rack/hadoop0.novalocal
> >>> 2013-03-23 12:06:48,930 INFO org.apache.hadoop.mapred.JobInProgress:
> >>> tip:task_201303231139_0001_m_000002 has split on
> >>> node:/default-rack/hadoop0.novalocal
> >>> 2013-03-23 12:06:48,931 INFO org.apache.hadoop.mapred.JobInProgress:
> >>> tip:task_201303231139_0001_m_000003 has split on
> >>> node:/default-rack/hadoop0.novalocal
> >>> 2013-03-23 12:06:48,933 INFO org.apache.hadoop.mapred.JobInProgress:
> >>> tip:task_201303231139_0001_m_000004 has split on
> >>> node:/default-rack/hadoop0.novalocal
> >>> 2013-03-23 12:06:48,934 INFO org.apache.hadoop.mapred.JobInProgress:
> >>> tip:task_201303231139_0001_m_000005 has split on
> >>> node:/default-rack/hadoop0.novalocal
> >>> 2013-03-23 12:06:48,939 INFO org.apache.hadoop.mapred.JobInProgress:
> >>> tip:task_201303231139_0001_m_000006 has split on
> >>> node:/default-rack/hadoop0.novalocal
> >>> 2013-03-23 12:06:48,950 INFO org.apache.hadoop.mapred.JobInProgress:
> >>> job_201303231139_0001 LOCALITY_WAIT_FACTOR=0.5
> >>> 2013-03-23 12:06:48,978 INFO org.apache.hadoop.mapred.JobInProgress:
> Job
> >>> job_201303231139_0001 initialized successfully with 7 map tasks and 1
> >>> reduce tasks.
> >>> 2013-03-23 12:06:50,855 INFO org.apache.hadoop.mapred.JobTracker:
> Adding
> >>> task (JOB_SETUP) 'attempt_201303231139_0001_m_000008_0' to tip
> >>> task_201303231139_0001_m_000008, for tracker
> >>> 'tracker_hadoop0.novalocal:hadoop0.novalocal/127.0.0.1:44879'
> >>> 2013-03-23 12:08:00,340 INFO org.apache.hadoop.mapred.JobInProgress:
> Task
> >>> 'attempt_201303231139_0001_m_000008_0' has completed
> >>> task_201303231139_0001_m_000008 successfully.
> >>> 2013-03-23 12:08:00,538 WARN org.apache.hadoop.mapred.JobInProgress: No
> >>> room for map task. Node hadoop0.novalocal has 8791543808 bytes free;
> but we
> >>> expect map to take 1317624576693539401
> >>> 2013-03-23 12:08:00,543 WARN org.apache.hadoop.mapred.JobInProgress: No
> >>> room for map task. Node hadoop0.novalocal has 8791543808 bytes free;
> but we
> >>> expect map to take 1317624576693539401
> >>> 2013-03-23 12:08:00,544 WARN org.apache.hadoop.mapred.JobInProgress: No
> >>> room for map task. Node hadoop0.novalocal has 8791543808 bytes free;
> but we
> >>> expect map to take 1317624576693539401
> >>> 2013-03-23 12:08:00,544 WARN org.apache.hadoop.mapred.JobInProgress: No
> >>> room for map task. Node hadoop0.novalocal has 8791543808 bytes free;
> but we
> >>> expect map to take 1317624576693539401
> >>> 2013-03-23 12:08:01,264 WARN org.apache.hadoop.mapred.JobInProgress: No
> >>> room for map task. Node hadoop1.novalocal has 8807518208 bytes free;
> but we
> >>> expect map to take 1317624576693539401
> >>>
> >>>
> >>> The value in we excpect map to take is too huge   1317624576693539401
> >>> bytes  !!!!!!!
> >>>
> >>> On Sat, Mar 23, 2013 at 11:37 AM, Redwane belmaati cherkaoui <
> >>> reduno1985@googlemail.com> wrote:
> >>>
> >>>> The estimated value that the hadoop compute is too huge for the simple
> >>>> example that i am running .
> >>>>
> >>>> ---------- Forwarded message ----------
> >>>> From: Redwane belmaati cherkaoui <reduno1985@googlemail.com>
> >>>>  Date: Sat, Mar 23, 2013 at 11:32 AM
> >>>> Subject: Re: About running a simple wordcount mapreduce
> >>>> To: Abdelrahman Shettia <ashettia@hortonworks.com>
> >>>> Cc: user@hadoop.apache.org, reduno1985 <reduno1985@gmail.com>
> >>>>
> >>>>
> >>>> This the output that I get I am running two machines  as you can see
>  do
> >>>> u see anything suspicious ?
> >>>> Configured Capacity: 21145698304 (19.69 GB)
> >>>> Present Capacity: 17615499264 (16.41 GB)
> >>>> DFS Remaining: 17615441920 (16.41 GB)
> >>>> DFS Used: 57344 (56 KB)
> >>>> DFS Used%: 0%
> >>>> Under replicated blocks: 0
> >>>> Blocks with corrupt replicas: 0
> >>>> Missing blocks: 0
> >>>>
> >>>> -------------------------------------------------
> >>>> Datanodes available: 2 (2 total, 0 dead)
> >>>>
> >>>> Name: 11.1.0.6:50010
> >>>> Decommission Status : Normal
> >>>> Configured Capacity: 10572849152 (9.85 GB)
> >>>> DFS Used: 28672 (28 KB)
> >>>> Non DFS Used: 1765019648 (1.64 GB)
> >>>> DFS Remaining: 8807800832(8.2 GB)
> >>>> DFS Used%: 0%
> >>>> DFS Remaining%: 83.31%
> >>>> Last contact: Sat Mar 23 11:30:10 CET 2013
> >>>>
> >>>>
> >>>> Name: 11.1.0.3:50010
> >>>> Decommission Status : Normal
> >>>> Configured Capacity: 10572849152 (9.85 GB)
> >>>> DFS Used: 28672 (28 KB)
> >>>> Non DFS Used: 1765179392 (1.64 GB)
> >>>> DFS Remaining: 8807641088(8.2 GB)
> >>>> DFS Used%: 0%
> >>>> DFS Remaining%: 83.3%
> >>>> Last contact: Sat Mar 23 11:30:08 CET 2013
> >>>>
> >>>>
> >>>> On Fri, Mar 22, 2013 at 10:19 PM, Abdelrahman Shettia <
> >>>> ashettia@hortonworks.com> wrote:
> >>>>
> >>>>> Hi Redwane,
> >>>>>
> >>>>> Please run the following command as hdfs user on any datanode. The
> >>>>> output will be something like this. Hope this helps
> >>>>>
> >>>>> hadoop dfsadmin -report
> >>>>> Configured Capacity: 81075068925 (75.51 GB)
> >>>>> Present Capacity: 70375292928 (65.54 GB)
> >>>>> DFS Remaining: 69895163904 (65.09 GB)
> >>>>> DFS Used: 480129024 (457.89 MB)
> >>>>> DFS Used%: 0.68%
> >>>>> Under replicated blocks: 0
> >>>>> Blocks with corrupt replicas: 0
> >>>>> Missing blocks: 0
> >>>>>
> >>>>> Thanks
> >>>>> -Abdelrahman
> >>>>>
> >>>>>
> >>>>> On Fri, Mar 22, 2013 at 12:35 PM, reduno1985 <
> reduno1985@googlemail.com>wrote:
> >>>>>
> >>>>>>
> >>>>>> I have my hosts running on openstack virtual machine instances
each
> >>>>>> instance has 10gb hard disc . Is there a way too see how much
space
> is in
> >>>>>> the hdfs without web ui .
> >>>>>>
> >>>>>>
> >>>>>> Sent from Samsung Mobile
> >>>>>>
> >>>>>> Serge Blazhievsky <hadoop.ca@gmail.com> wrote:
> >>>>>> Check web ui how much space you have on hdfs???
> >>>>>>
> >>>>>> Sent from my iPhone
> >>>>>>
> >>>>>> On Mar 22, 2013, at 11:41 AM, Abdelrahman Shettia <
> >>>>>> ashettia@hortonworks.com> wrote:
> >>>>>>
> >>>>>> Hi Redwane ,
> >>>>>>
> >>>>>> It is possible that the hosts which are running tasks are do
not
> have
> >>>>>> enough space. Those dirs are confiugred in mapred-site.xml
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> On Fri, Mar 22, 2013 at 8:42 AM, Redwane belmaati cherkaoui
<
> >>>>>> reduno1985@googlemail.com> wrote:
> >>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> ---------- Forwarded message ----------
> >>>>>>> From: Redwane belmaati cherkaoui <reduno1985@googlemail.com>
> >>>>>>> Date: Fri, Mar 22, 2013 at 4:39 PM
> >>>>>>> Subject: About running a simple wordcount mapreduce
> >>>>>>> To: mapreduce-issues@hadoop.apache.org
> >>>>>>>
> >>>>>>>
> >>>>>>> Hi
> >>>>>>> I am trying to run  a wordcount mapreduce job on several
files (<20
> >>>>>>> mb) using two machines . I get stuck on 0% map 0% reduce.
> >>>>>>> The jobtracker log file shows the following warning:
> >>>>>>>  WARN org.apache.hadoop.mapred.JobInProgress: No room for
map task.
> >>>>>>> Node hadoop0.novalocal has 8791384064 bytes free; but we
expect
> map to
> >>take
> >>>>>>> 1317624576693539401
> >>>>>>>
> >>>>>>> Please help me ,
> >>>>>>> Best Regards,
> >>>>>>>
> >>>>>>>
> >>>>>>
> >>>>>
> >>>>
> >>>>
> >>>
> >
> >
> > Matteo Lanati
> > Distributed Resources Group
> > Leibniz-Rechenzentrum (LRZ)
> > Boltzmannstrasse 1
> > 85748 Garching b. M√ľnchen (Germany)
> > Phone: +49 89 35831 8724
>
>
>
> --
> Harsh J
>

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