Frequent java.lang.OutOfMemoryError: Java heap space error

[Ravi Roy]

Hello all,

I am running my product build with cruisecontrol using ant 1.7.0. I have set
ANT_OPTS=-Xms=1536m -Xmx1536m, but still I am getting below mentioned error,
I have searched mail archive, but I see ANT_OPTS settings, which I have
already set, I get the following error :

    [javac] The system is out of resources.
    [javac] java.lang.OutOfMemoryError: Java heap space

Am I doing right to set ANT_OPTS variable to increase the heap size ? I am
running my build machine using Windows XP with 2.0 Gigabyte of physical RAM.

Does somebody know how to handle this ? It is more frequent now.

Thanks in adavnace for thoughts.

Regards,
Ravi


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[kermitt]

have you tried to fork and specify the memoryInitialSize and memoryMaximumSize?

you should try with another compiler if you were using Sun Javac, try jikes or even better eclipse compiler (org.eclipse.jdt.core.JDTCompilerAdapter)

my 2cts...



-----Original Message-----
From: Ravi Roy [mailto:ravi.aroy@...]
Sent: Monday, December 10, 2007 4:37 PM
To: user@...
Subject: Frequent java.lang.OutOfMemoryError: Java heap space error

Hello all,

I am running my product build with cruisecontrol using ant 1.7.0. I have set
ANT_OPTS=-Xms=1536m -Xmx1536m, but still I am getting below mentioned error,
I have searched mail archive, but I see ANT_OPTS settings, which I have
already set, I get the following error :

    [javac] The system is out of resources.
    [javac] java.lang.OutOfMemoryError: Java heap space

Am I doing right to set ANT_OPTS variable to increase the heap size ? I am
running my build machine using Windows XP with 2.0 Gigabyte of physical RAM.

Does somebody know how to handle this ? It is more frequent now.

Thanks in adavnace for thoughts.

Regards,
Ravi


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[Steve Loughran]

Ravi Roy wrote:

> Hello all,
>
> I am running my product build with cruisecontrol using ant 1.7.0. I have set
> ANT_OPTS=-Xms=1536m -Xmx1536m, but still I am getting below mentioned error,
> I have searched mail archive, but I see ANT_OPTS settings, which I have
> already set, I get the following error :
>
>     [javac] The system is out of resources.
>     [javac] java.lang.OutOfMemoryError: Java heap space
>
> Am I doing right to set ANT_OPTS variable to increase the heap size ? I am
> running my build machine using Windows XP with 2.0 Gigabyte of physical RAM.
>
> Does somebody know how to handle this ? It is more frequent now.

1. run jconsole against the running java processes to identify the
memory hogs
2. it may be that its cruise control running ant in process that is
consuming the memory, and that different env variables need setting
3. fork junit, javac and other process (separate JVM that gets cleaned up)
4. Are you using Ivy or other third-party ant tasks?

I'd be pretty surprised that you are running out at 1.5GB; that will
result in a footprint over the 2GB mark

-steve

PS: (top proceses on my machine right now:

vm        physical  shared
2319m 1.1g  15m S   94 18.9 248:35.14 java
2051m 475m  19m S   30  7.9  71:55.36 java
769m 569m 553m S   22  9.5  40:26.57 vmware-v

IDEA at the top, then netbeans, finally XP in a VMware image.

I'm playing with Netbeans as IDEA is getting too sluggish.

--
Steve Loughran                  http://www.1060.org/blogxter/publish/5
Author: Ant in Action           http://antbook.org/

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[mgainty]

Hi Ravi

This is what I configure to enable increased min/max heap
(Note the collection of unused PermGen parameters)
-Xmx512m -XX:MaxPermSize=512m -XX:+PrintGCDetails -XX:+UseConcMarkSweepGC -X
X:+CMSPermGenSweepingEnabled -XX:+CMSClassUnloadingEnabled

HTH
M-
----- Original Message -----
From: "Ravi Roy" <ravi.aroy@...>
To: <user@...>
Sent: Monday, December 10, 2007 10:37 AM
Subject: Frequent java.lang.OutOfMemoryError: Java heap space error


Hello all,

I am running my product build with cruisecontrol using ant 1.7.0. I have set
ANT_OPTS=-Xms=1536m -Xmx1536m, but still I am getting below mentioned error,
I have searched mail archive, but I see ANT_OPTS settings, which I have
already set, I get the following error :

    [javac] The system is out of resources.
    [javac] java.lang.OutOfMemoryError: Java heap space

Am I doing right to set ANT_OPTS variable to increase the heap size ? I am
running my build machine using Windows XP with 2.0 Gigabyte of physical RAM.

Does somebody know how to handle this ? It is more frequent now.

Thanks in adavnace for thoughts.

Regards,
Ravi


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[Ravi Roy]

Thanks Steve,

I am using Ant-contrib-b03 for some repeated operations and Emma ant task
for getting code coverage, no other third party libs.
Junit is always forked while I run my junit tests.

I would run jconsole and let you know the results.

Thanks
Ravi.

-----Original Message-----
From: Steve Loughran [mailto:stevel@...]
Sent: Monday, December 10, 2007 9:15 PM
To: Ant Users List
Subject: Re: Frequent java.lang.OutOfMemoryError: Java heap space error


Ravi Roy wrote:

> Hello all,
>
> I am running my product build with cruisecontrol using ant 1.7.0. I
> have set ANT_OPTS=-Xms=1536m -Xmx1536m, but still I am getting below
> mentioned error, I have searched mail archive, but I see ANT_OPTS
> settings, which I have already set, I get the following error :
>
>     [javac] The system is out of resources.
>     [javac] java.lang.OutOfMemoryError: Java heap space
>
> Am I doing right to set ANT_OPTS variable to increase the heap size ?
> I am running my build machine using Windows XP with 2.0 Gigabyte of
> physical RAM.
>
> Does somebody know how to handle this ? It is more frequent now.

1. run jconsole against the running java processes to identify the
memory hogs
2. it may be that its cruise control running ant in process that is
consuming the memory, and that different env variables need setting 3. fork
junit, javac and other process (separate JVM that gets cleaned up) 4. Are
you using Ivy or other third-party ant tasks?

I'd be pretty surprised that you are running out at 1.5GB; that will
result in a footprint over the 2GB mark

-steve

PS: (top proceses on my machine right now:

vm        physical  shared
2319m 1.1g  15m S   94 18.9 248:35.14 java
2051m 475m  19m S   30  7.9  71:55.36 java
769m 569m 553m S   22  9.5  40:26.57 vmware-v

IDEA at the top, then netbeans, finally XP in a VMware image.

I'm playing with Netbeans as IDEA is getting too sluggish.

--
Steve Loughran                  http://www.1060.org/blogxter/publish/5
Author: Ant in Action           http://antbook.org/

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[Steve Loughran]

Martin Gainty wrote:
> Hi Ravi
>
> This is what I configure to enable increased min/max heap
> (Note the collection of unused PermGen parameters)
> -Xmx512m -XX:MaxPermSize=512m -XX:+PrintGCDetails -XX:+UseConcMarkSweepGC -X
> X:+CMSPermGenSweepingEnabled -XX:+CMSClassUnloadingEnabled

that permgen thing is a pain; OutOfPermGenSpace is a real annoyance.
JRockit does not have this split; you get one heap for everything. I
find it eliminates a lot of error messages I would otherwise see.

-steve

--
Steve Loughran                  http://www.1060.org/blogxter/publish/5
Author: Ant in Action           http://antbook.org/

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[Ravi Roy]

Hi Steve,

Build was started and I run Jconsole and at the time when Heap space problem
occurred following is the jconsole output :

Regards,
Ravi


VM Summary
Monday, December 10, 2007 5:44:00 PM CET
------------------------------------------
Connection name: 
pid: 860 sun.tools.jconsole.JConsole
Virtual Machine: 
Java HotSpot(TM) Client VM version 1.6.0_03-b05
Vendor: 
Sun Microsystems Inc.
Name: 
860@buildserver
Uptime: 
2 minutes
Process CPU time: 
8.515 seconds
JIT compiler: 
HotSpot Client Compiler
Total compile time: 
1.239 seconds
 Live threads: 
 30
Peak: 
 34
--------------------------------
Daemon threads: 
 18
Total threads started: 
183
Current classes loaded: 
3,121
Total classes loaded: 
3,165
Total classes unloaded: 
   44
Current heap size: 
 5,740 kbytes
Maximum heap size: 
65,088 kbytes
Committed memory: 
9,892 kbytes
Pending finalization: 
0 objects
Garbage collector: 
Name = 'Copy', Collections = 162, Total time spent = 0.319 seconds
Garbage collector: 
Name = 'MarkSweepCompact', Collections = 6, Total time spent = 0.485 seconds
----------------------------------------------------------------------------
--------
Operating System: 
Windows XP 5.1
Architecture: 
x86
Number of processors: 
2
Committed virtual memory: 
37,312 kbytes
Total physical memory: 
2,087,340 kbytes
Free physical memory: 
1,240,508 kbytes
Total swap space: 
3,978,432 kbytes
Free swap space: 
2,810,136 kbyte
-------------------------------------------------------------------

-----Original Message-----
From: Ravi Roy [mailto:ravi.aroy@...]
Sent: Monday, December 10, 2007 9:43 PM
To: 'Ant Users List'
Subject: RE: Frequent java.lang.OutOfMemoryError: Java heap space error


Thanks Steve,

I am using Ant-contrib-b03 for some repeated operations and Emma ant task
for getting code coverage, no other third party libs. Junit is always forked
while I run my junit tests.

I would run jconsole and let you know the results.

Thanks
Ravi.

-----Original Message-----
From: Steve Loughran [mailto:stevel@...]
Sent: Monday, December 10, 2007 9:15 PM
To: Ant Users List
Subject: Re: Frequent java.lang.OutOfMemoryError: Java heap space error


Ravi Roy wrote:

> Hello all,
>
> I am running my product build with cruisecontrol using ant 1.7.0. I
> have set ANT_OPTS=-Xms=1536m -Xmx1536m, but still I am getting below
> mentioned error, I have searched mail archive, but I see ANT_OPTS
> settings, which I have already set, I get the following error :
>
>     [javac] The system is out of resources.
>     [javac] java.lang.OutOfMemoryError: Java heap space
>
> Am I doing right to set ANT_OPTS variable to increase the heap size ?
> I am running my build machine using Windows XP with 2.0 Gigabyte of
> physical RAM.
>
> Does somebody know how to handle this ? It is more frequent now.

1. run jconsole against the running java processes to identify the
memory hogs
2. it may be that its cruise control running ant in process that is
consuming the memory, and that different env variables need setting 3. fork
junit, javac and other process (separate JVM that gets cleaned up) 4. Are
you using Ivy or other third-party ant tasks?

I'd be pretty surprised that you are running out at 1.5GB; that will
result in a footprint over the 2GB mark

-steve

PS: (top proceses on my machine right now:

vm        physical  shared
2319m 1.1g  15m S   94 18.9 248:35.14 java
2051m 475m  19m S   30  7.9  71:55.36 java
769m 569m 553m S   22  9.5  40:26.57 vmware-v

IDEA at the top, then netbeans, finally XP in a VMware image.

I'm playing with Netbeans as IDEA is getting too sluggish.

--
Steve Loughran                  http://www.1060.org/blogxter/publish/5
Author: Ant in Action           http://antbook.org/

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[Steve Loughran]

Ravi Roy wrote:

> Hi Steve,
>
> Build was started and I run Jconsole and at the time when Heap space problem
> occurred following is the jconsole output :
>
> Regards,
> Ravi
>
>
> VM Summary
> Monday, December 10, 2007 5:44:00 PM CET
> ------------------------------------------
> Connection name:
> pid: 860 sun.tools.jconsole.JConsole
> Virtual Machine:
> Java HotSpot(TM) Client VM version 1.6.0_03-b05
> Vendor:
> Sun Microsystems Inc.
> Name:
> 860@buildserver
> Uptime:
> 2 minutes
> Process CPU time:
> 8.515 seconds
> JIT compiler:
> HotSpot Client Compiler
> Total compile time:
> 1.239 seconds
>  Live threads:
>  30
> Peak:
>  34
> --------------------------------
> Daemon threads:
>  18
> Total threads started:
> 183
> Current classes loaded:
> 3,121
> Total classes loaded:
> 3,165
> Total classes unloaded:
>    44
> Current heap size:
>  5,740 kbytes
> Maximum heap size:
> 65,088 kbytes
> Committed memory:
> 9,892 kbytes
> Pending finalization:
> 0 objects
> Garbage collector:
> Name = 'Copy', Collections = 162, Total time spent = 0.319 seconds
> Garbage collector:
> Name = 'MarkSweepCompact', Collections = 6, Total time spent = 0.485 seconds

Looks like it is cruise that is out of memory; its heap is still stuck
at 64MB. I dont know how you increment its memory count, but assume it
is documented somewhere. If it is not an environment variable, edit the
.bat file that starts it up

-steve

--
Steve Loughran                  http://www.1060.org/blogxter/publish/5
Author: Ant in Action           http://antbook.org/

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[Stepan Mishura]

On 12/10/07, Ravi Roy <ravi.aroy@...> wrote:
> Hello all,
>
> I am running my product build with cruisecontrol using ant 1.7.0.

Our testing infra hit the same problem with ANT 1.6.5.
As workaround the infra forks ANT build in a separate process.

Thanks,
Stepan.

I have set

> ANT_OPTS=-Xms=1536m -Xmx1536m, but still I am getting below mentioned error,
> I have searched mail archive, but I see ANT_OPTS settings, which I have
> already set, I get the following error :
>
>    [javac] The system is out of resources.
>    [javac] java.lang.OutOfMemoryError: Java heap space
>
> Am I doing right to set ANT_OPTS variable to increase the heap size ? I am
> running my build machine using Windows XP with 2.0 Gigabyte of physical RAM.
>
> Does somebody know how to handle this ? It is more frequent now.
>
> Thanks in adavnace for thoughts.
>
> Regards,
> Ravi
>
>
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> To unsubscribe, e-mail: user-unsubscribe@...
> For additional commands, e-mail: user-help@...

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[Prashant Pharate]

Hi,

If you are getting an exception "Outof memory in eclipse" try following

Right click on build.xml---->Run as--->External tool conf--->In environment variable add ANT_OPTS variable with value -Xmx512M -XX:PermSize=1024m. Then in JRE tab add virtual memory argument ....select from variable list ----> select ANT_OPTS-------->Apply run.........It will work.
All the best.

Stepan Mishura wrote:

On 12/10/07, Ravi Roy <[e-mail]> wrote:
> Hello all,
>
> I am running my product build with cruisecontrol using ant 1.7.0.

Our testing infra hit the same problem with ANT 1.6.5.
As workaround the infra forks ANT build in a separate process.

Thanks,
Stepan.

I have set
> ANT_OPTS=-Xms=1536m -Xmx1536m, but still I am getting below mentioned error,
> I have searched mail archive, but I see ANT_OPTS settings, which I have
> already set, I get the following error :
>
>    [javac] The system is out of resources.
>    [javac] java.lang.OutOfMemoryError: Java heap space
>
> Am I doing right to set ANT_OPTS variable to increase the heap size ? I am
> running my build machine using Windows XP with 2.0 Gigabyte of physical RAM.
>
> Does somebody know how to handle this ? It is more frequent now.
>
> Thanks in adavnace for thoughts.
>
> Regards,
> Ravi
>
>
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