Hi Vinod,
Thanks for the link, I went through it and it looks like the OOM killer
picks a process that has the highest oom_score. I have tried to capture
oom_score for all the YARN daemon processes after each run of my
application.The first time I have captured these details, I see that the
name node is killed where as the Node Manager has the highest score. So, I
don't if it is really the OOM killer that has killed it!
Please see the output of my run attached, which also has the output of
free command after each run. The output of free command doesn't either show
any exhaustion of system memory.
Also, one more thing I have done today is, I have added audit rules for
each of the daemons to capture all the system calls. And, in the audit log,
I see futex() system call occurring in the killed daemon processes. I don't
know if it causes the daemon to die? and why does that call happen...
Thanks,
Kishore
On Wed, Dec 18, 2013 at 12:31 AM, Vinod Kumar Vavilapalli <
vino...@hortonworks.com> wrote:
> That's good info. It is more than likely that it is the OOM killer. See
> http://stackoverflow.com/questions/726690/who-killed-my-process-and-whyfor
> example.
>
> Thanks,
> +Vinod
>
> On Dec 17, 2013, at 1:26 AM, Krishna Kishore Bonagiri <
> write2kish...@gmail.com> wrote:
>
> Hi Jeff,
>
> I have run the resource manager in the foreground without nohup and here
> are the messages when it was killed, it says it is "Killed" but doesn't say
> why!
>
> 13/12/17 03:14:54 INFO capacity.CapacityScheduler: Application
> appattempt_1387266015651_0258_000001 released container
> container_1387266015651_0258_01_000003 on node: host: isredeng:36576
> #containers=2 available=7936 used=256 with event: FINISHED
> 13/12/17 03:14:54 INFO rmcontainer.RMContainerImpl:
> container_1387266015651_0258_01_000005 Container Transitioned from ACQUIRED
> to RUNNING
> Killed
>
>
> Thanks,
> Kishore
>
>
> On Mon, Dec 16, 2013 at 11:10 PM, Jeff Stuckman <stuck...@umd.edu> wrote:
>
>> What if you open the daemons in a "screen" session rather than running
>> them in the background -- for example, run "yarn resourcemanager". Then you
>> can see exactly when they terminate, and hopefully why.
>>
>> *From: *Krishna Kishore Bonagiri
>> *Sent: *Monday, December 16, 2013 6:20 AM
>> *To: *user@hadoop.apache.org
>> *Reply To: *user@hadoop.apache.org
>> *Subject: *Re: Yarn -- one of the daemons getting killed
>>
>> Hi Vinod,
>>
>> Yes, I am running on Linux.
>>
>> I was actually searching for a corresponding message in
>> /var/log/messages to confirm that OOM killed my daemons, but could not find
>> any corresponding messages there! According to the following link, it looks
>> like if it is a memory issue, I should see a messages even if OOM is
>> disabled, but I don't see it.
>>
>> http://www.redhat.com/archives/taroon-list/2007-August/msg00006.html
>>
>> And, is memory consumption more in case of two node cluster than a
>> single node one? Also, I see this problem only when I give "*" as the node
>> name.
>>
>> One other thing I suspected was the allowed number of user processes,
>> I increased that to 31000 from 1024 but that also didn't help.
>>
>> Thanks,
>> Kishore
>>
>>
>> On Fri, Dec 13, 2013 at 11:51 PM, Vinod Kumar Vavilapalli <
>> vino...@hortonworks.com> wrote:
>>
>>> Yes, that is what I suspect. That is why I asked if everything is on a
>>> single node. If you are running linux, linux OOM killer may be shooting
>>> things down. When it happens, you will see something like "'killed process"
>>> in system's syslog.
>>>
>>> Thanks,
>>> +Vinod
>>>
>>> On Dec 13, 2013, at 4:52 AM, Krishna Kishore Bonagiri <
>>> write2kish...@gmail.com> wrote:
>>>
>>> Vinod,
>>>
>>> One more thing I observed is that, my Client which submits Application
>>> Master one after another continuously also gets killed sometimes. So, it is
>>> always any of the Java Processes that is getting killed. Does it indicate
>>> some excessive memory usage by them or something like that, that is causing
>>> them die? If so, how can we resolve this kind of issue?
>>>
>>> Thanks,
>>> Kishore
>>>
>>>
>>> On Fri, Dec 13, 2013 at 10:16 AM, Krishna Kishore Bonagiri <
>>> write2kish...@gmail.com> wrote:
>>>
>>>> No, I am running on 2 node cluster.
>>>>
>>>>
>>>> On Fri, Dec 13, 2013 at 1:52 AM, Vinod Kumar Vavilapalli <
>>>> vino...@hortonworks.com> wrote:
>>>>
>>>>> Is all of this on a single node?
>>>>>
>>>>> Thanks,
>>>>> +Vinod
>>>>>
>>>>> On Dec 12, 2013, at 3:26 AM, Krishna Kishore Bonagiri <
>>>>> write2kish...@gmail.com> wrote:
>>>>>
>>>>> Hi,
>>>>> I am running a small application on YARN (2.2.0) in a loop of 500
>>>>> times, and while doing so one of the daemons, node manager, resource
>>>>> manager, or data node is getting killed (I mean disappearing) at a random
>>>>> point. I see no information in the corresponding log files. How can I know
>>>>> why is it happening so?
>>>>>
>>>>> And, one more observation is that, this is happening only when I am
>>>>> using "*" for node name in the container requests, otherwise when I used a
>>>>> specific node name, everything is fine.
>>>>>
>>>>> Thanks,
>>>>> Kishore
>>>>>
>>>>>
>>>>>
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>>>>
>>>>
>>>>
>>>
>>>
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>
>
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> NOTICE: This message is intended for the use of the individual or entity
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>
Pid of name node is 9813
Pid of data node is 9927
Pid of secondary name node is 10121
Pid of resourcemanager is 10270
Pid of nodemanager is 10385
Pid of YarnClient is 12312
Run 1
total used free shared buffers cached
Mem: 6126376 3318456 2807920 0 472732 1026524
-/+ buffers/cache: 1819200 4307176
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 2
total used free shared buffers cached
Mem: 6126376 3239696 2886680 0 472740 1026476
-/+ buffers/cache: 1740480 4385896
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 3
total used free shared buffers cached
Mem: 6126376 3243988 2882388 0 472748 1026548
-/+ buffers/cache: 1744692 4381684
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 4
total used free shared buffers cached
Mem: 6126376 3332568 2793808 0 472756 1026792
-/+ buffers/cache: 1833020 4293356
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 5
total used free shared buffers cached
Mem: 6126376 3335824 2790552 0 472768 1026900
-/+ buffers/cache: 1836156 4290220
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 6
total used free shared buffers cached
Mem: 6126376 3336588 2789788 0 472776 1027036
-/+ buffers/cache: 1836776 4289600
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 7
total used free shared buffers cached
Mem: 6126376 3265408 2860968 0 472784 1027020
-/+ buffers/cache: 1765604 4360772
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 8
total used free shared buffers cached
Mem: 6126376 3362320 2764056 0 472824 1027332
-/+ buffers/cache: 1862164 4264212
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 9
total used free shared buffers cached
Mem: 6126376 3282480 2843896 0 472828 1027284
-/+ buffers/cache: 1782368 4344008
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 10
total used free shared buffers cached
Mem: 6126376 3293224 2833152 0 472828 1027372
-/+ buffers/cache: 1793024 4333352
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 11
total used free shared buffers cached
Mem: 6126376 3378036 2748340 0 472840 1027628
-/+ buffers/cache: 1877568 4248808
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 12
total used free shared buffers cached
Mem: 6126376 3294520 2831856 0 472840 1027552
-/+ buffers/cache: 1794128 4332248
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 13
total used free shared buffers cached
Mem: 6126376 3379516 2746860 0 472844 1027788
-/+ buffers/cache: 1878884 4247492
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 14
total used free shared buffers cached
Mem: 6126376 3382160 2744216 0 472844 1027948
-/+ buffers/cache: 1881368 4245008
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 15
total used free shared buffers cached
Mem: 6126376 3381820 2744556 0 472848 1028028
-/+ buffers/cache: 1880944 4245432
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
587731
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 16
total used free shared buffers cached
Mem: 6126376 3298772 2827604 0 472852 1027984
-/+ buffers/cache: 1797936 4328440
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 17
total used free shared buffers cached
Mem: 6126376 3298608 2827768 0 472852 1028052
-/+ buffers/cache: 1797704 4328672
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 18
total used free shared buffers cached
Mem: 6126376 3382572 2743804 0 472852 1028284
-/+ buffers/cache: 1881436 4244940
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 19
total used free shared buffers cached
Mem: 6126376 3300952 2825424 0 472856 1028220
-/+ buffers/cache: 1799876 4326500
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 20
total used free shared buffers cached
Mem: 6126376 3383520 2742856 0 472860 1028464
-/+ buffers/cache: 1882196 4244180
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 21
total used free shared buffers cached
Mem: 6126376 3301672 2824704 0 472864 1028420
-/+ buffers/cache: 1800388 4325988
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 22
total used free shared buffers cached
Mem: 6126376 3386056 2740320 0 472872 1028656
-/+ buffers/cache: 1884528 4241848
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 23
total used free shared buffers cached
Mem: 6126376 3303488 2822888 0 472872 1028604
-/+ buffers/cache: 1802012 4324364
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
316132
Secondary Name Node's
312514
Yarn Client's:
581112
Run 24
total used free shared buffers cached
Mem: 6126376 3119852 3006524 0 472876 1028680
-/+ buffers/cache: 1618296 4508080
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315495
NameNode's:
cat: /proc/9813/oom_score: No such file or directory
Secondary Name Node's
312514
Yarn Client's:
581112
Run 25
total used free shared buffers cached
Mem: 6126376 3116444 3009932 0 472980 1028968
-/+ buffers/cache: 1614496 4511880
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
586795
NodeManager's:
294077
DataNode's:
315533
NameNode's:
cat: /proc/9813/oom_score: No such file or directory
Secondary Name Node's
312514
Yarn Client's:
581112
Run 26
total used free shared buffers cached
Mem: 6126376 3128948 2997428 0 473076 1029272
-/+ buffers/cache: 1626600 4499776
Swap: 2064376 0 2064376
oom_scores are
ResourceManager's:
293397
NodeManager's:
294077
DataNode's:
315533
NameNode's:
cat: /proc/9813/oom_score: No such file or directory
Secondary Name Node's
312514
Yarn Client's:
581112
Run 27
