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Posted to users@jena.apache.org by Mohammad Noorani Bakerally <no...@gmail.com> on 2017/11/19 09:41:44 UTC
Core dump
I am getting a core dump. It is not always occurring. I am doing a
performance test on a java application. A python script is executing the
jar several times and the dump start to occur after the 5th occurence. I
cannot say for sure if its because of Jena but this is what appears in the
compilation events:
Compilation events (10 events):
Event: 11,376 Thread 0x00007f2290209000 nmethod 4045 0x00007f2281eb3390
code [0x00007f2281eb3500, 0x00007f2281eb3718]
Event: 11,450 Thread 0x00007f229020c000 4046 4
org.apache.jena.sparql.algebra.AlgebraGenerator::<init> (20 bytes)
Event: 11,454 Thread 0x00007f229020c000 nmethod 4046 0x00007f2281eb2d50
code [0x00007f2281eb2ee0, 0x00007f2281eb3188]
Event: 11,484 Thread 0x00007f229020d800 4047 4
org.apache.jena.sparql.engine.QueryExecutionBase::startQueryIterator (191
bytes)
Event: 11,494 Thread 0x00007f2290209000 4048 4
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync::<init> (5
bytes)
Event: 11,494 Thread 0x00007f229020c000 4049 4
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock::<init> (13
bytes)
Event: 11,494 Thread 0x00007f229020c000 nmethod 4049 0x00007f2281eb5890
code [0x00007f2281eb59e0, 0x00007f2281eb5a78]
Event: 11,494 Thread 0x00007f229020c000 4050 4
java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock::<init> (13
bytes)
Event: 11,495 Thread 0x00007f229020c000 nmethod 4050 0x00007f2281ec3850
code [0x00007f2281ec39a0, 0x00007f2281ec3a38]
Event: 11,496 Thread 0x00007f2290209000 nmethod 4048 0x00007f2281ec3490
code [0x00007f2281ec35e0, 0x00007f2281ec3718]
The entire log can be found in the attached file. Any reason why this is
occuring ?
thanks
Noor
Re: Core dump
Posted by Mohammad Noorani Bakerally <no...@gmail.com>.
Ok, thanks for the insights,
On Sun, Nov 19, 2017 at 2:38 PM, Andy Seaborne <an...@apache.org> wrote:
> Hi there,
>
> If you get a core dump, the JVM has crashed and it's a platform issue.
> There isn't anything in Jena that can cause this - it's pure java. All the
> event log seems to say is that some parts of Jena were JIT'ed just prior to
> the crash.
>
> Andy
>
>
> On 19/11/17 09:41, Mohammad Noorani Bakerally wrote:
>
>> I am getting a core dump. It is not always occurring. I am doing a
>> performance test on a java application. A python script is executing the
>> jar several times and the dump start to occur after the 5th occurence. I
>> cannot say for sure if its because of Jena but this is what appears in the
>> compilation events:
>>
>>
>> Compilation events (10 events):
>> Event: 11,376 Thread 0x00007f2290209000 nmethod 4045 0x00007f2281eb3390
>> code [0x00007f2281eb3500, 0x00007f2281eb3718]
>> Event: 11,450 Thread 0x00007f229020c000 4046 4
>> org.apache.jena.sparql.algebra.AlgebraGenerator::<init> (20 bytes)
>> Event: 11,454 Thread 0x00007f229020c000 nmethod 4046 0x00007f2281eb2d50
>> code [0x00007f2281eb2ee0, 0x00007f2281eb3188]
>> Event: 11,484 Thread 0x00007f229020d800 4047 4
>> org.apache.jena.sparql.engine.QueryExecutionBase::startQueryIterator
>> (191 bytes)
>> Event: 11,494 Thread 0x00007f2290209000 4048 4
>> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync::<init> (5
>> bytes)
>> Event: 11,494 Thread 0x00007f229020c000 4049 4
>> java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock::<init> (13
>> bytes)
>> Event: 11,494 Thread 0x00007f229020c000 nmethod 4049 0x00007f2281eb5890
>> code [0x00007f2281eb59e0, 0x00007f2281eb5a78]
>> Event: 11,494 Thread 0x00007f229020c000 4050 4
>> java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock::<init> (13
>> bytes)
>> Event: 11,495 Thread 0x00007f229020c000 nmethod 4050 0x00007f2281ec3850
>> code [0x00007f2281ec39a0, 0x00007f2281ec3a38]
>> Event: 11,496 Thread 0x00007f2290209000 nmethod 4048 0x00007f2281ec3490
>> code [0x00007f2281ec35e0, 0x00007f2281ec3718]
>>
>> The entire log can be found in the attached file. Any reason why this is
>> occuring ?
>>
>> thanks
>> Noor
>>
>>
>
Re: Core dump
Posted by Andy Seaborne <an...@apache.org>.
Hi there,
If you get a core dump, the JVM has crashed and it's a platform issue.
There isn't anything in Jena that can cause this - it's pure java. All
the event log seems to say is that some parts of Jena were JIT'ed just
prior to the crash.
Andy
On 19/11/17 09:41, Mohammad Noorani Bakerally wrote:
> I am getting a core dump. It is not always occurring. I am doing a
> performance test on a java application. A python script is executing the
> jar several times and the dump start to occur after the 5th occurence. I
> cannot say for sure if its because of Jena but this is what appears in
> the compilation events:
>
>
> Compilation events (10 events):
> Event: 11,376 Thread 0x00007f2290209000 nmethod 4045 0x00007f2281eb3390
> code [0x00007f2281eb3500, 0x00007f2281eb3718]
> Event: 11,450 Thread 0x00007f229020c000 4046 4
> org.apache.jena.sparql.algebra.AlgebraGenerator::<init> (20 bytes)
> Event: 11,454 Thread 0x00007f229020c000 nmethod 4046 0x00007f2281eb2d50
> code [0x00007f2281eb2ee0, 0x00007f2281eb3188]
> Event: 11,484 Thread 0x00007f229020d800 4047 4
> org.apache.jena.sparql.engine.QueryExecutionBase::startQueryIterator
> (191 bytes)
> Event: 11,494 Thread 0x00007f2290209000 4048 4
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync::<init> (5
> bytes)
> Event: 11,494 Thread 0x00007f229020c000 4049 4
> java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock::<init> (13
> bytes)
> Event: 11,494 Thread 0x00007f229020c000 nmethod 4049 0x00007f2281eb5890
> code [0x00007f2281eb59e0, 0x00007f2281eb5a78]
> Event: 11,494 Thread 0x00007f229020c000 4050 4
> java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock::<init> (13
> bytes)
> Event: 11,495 Thread 0x00007f229020c000 nmethod 4050 0x00007f2281ec3850
> code [0x00007f2281ec39a0, 0x00007f2281ec3a38]
> Event: 11,496 Thread 0x00007f2290209000 nmethod 4048 0x00007f2281ec3490
> code [0x00007f2281ec35e0, 0x00007f2281ec3718]
>
> The entire log can be found in the attached file. Any reason why this is
> occuring ?
>
> thanks
> Noor
>