Hi Andrea,
After installing three versions of the JDK (apparently it needs to be the
exact same as the JRE or you get lots of errors), I've got the following:
Heap Configuration:
MinHeapFreeRatio = 40
MaxHeapFreeRatio = 70
MaxHeapSize = 1073741824 (1024.0MB)
NewSize = 21757952 (20.75MB)
MaxNewSize = 87228416 (83.1875MB)
OldSize = 65404928 (62.375MB)
NewRatio = 7
SurvivorRatio = 8
PermSize = 134217728 (128.0MB)
MaxPermSize = 536870912 (512.0MB)
Heap Usage:
New Generation (Eden + 1 Survivor Space):
capacity = 78512128 (74.875MB)
used = 73110712 (69.72380828857422MB)
free = 5401416 (5.151191711425781MB)
93.12027818173519% used
Eden Space:
capacity = 69795840 (66.5625MB)
used = 66148256 (63.083892822265625MB)
free = 3647584 (3.478607177734375MB)
94.77392348884976% used
>From Space:
capacity = 8716288 (8.3125MB)
used = 6962456 (6.639915466308594MB)
free = 1753832 (1.6725845336914062MB)
79.87868230145676% used
To Space:
capacity = 8716288 (8.3125MB)
used = 0 (0.0MB)
free = 8716288 (8.3125MB)
0.0% used
concurrent mark-sweep generation:
capacity = 986513408 (940.8125MB)
used = 830111392 (791.6559143066406MB)
free = 156402016 (149.15658569335938MB)
84.14598172395037% used
Perm Generation:
capacity = 185602048 (177.00390625MB)
used = 110888984 (105.7519760131836MB)
free = 74713064 (71.2519302368164MB)
59.745560566228235% used
------------------------
The second instance:
Heap Usage:
New Generation (Eden + 1 Survivor Space):
capacity = 78512128 (74.875MB)
used = 56468240 (53.85231018066406MB)
free = 22043888 (21.022689819335938MB)
71.92295182726419% used
Eden Space:
capacity = 69795840 (66.5625MB)
used = 56468240 (53.85231018066406MB)
free = 13327600 (12.710189819335938MB)
80.90487914465963% used
>From Space:
capacity = 8716288 (8.3125MB)
used = 0 (0.0MB)
free = 8716288 (8.3125MB)
0.0% used
To Space:
capacity = 8716288 (8.3125MB)
used = 0 (0.0MB)
free = 8716288 (8.3125MB)
0.0% used
concurrent mark-sweep generation:
capacity = 986513408 (940.8125MB)
used = 982866344 (937.3343887329102MB)
free = 3647064 (3.4781112670898438MB)
99.63030771093179% used
Perm Generation:
capacity = 180719616 (172.34765625MB)
used = 108201840 (103.18931579589844MB)
free = 72517776 (69.15834045410156MB)
59.87276998198137% used
----------------
Third instance:
Heap Usage:
New Generation (Eden + 1 Survivor Space):
capacity = 78512128 (74.875MB)
used = 65007392 (61.995880126953125MB)
free = 13504736 (12.879119873046875MB)
82.79917212280886% used
Eden Space:
capacity = 69795840 (66.5625MB)
used = 65007392 (61.995880126953125MB)
free = 4788448 (4.566619873046875MB)
93.13935042546949% used
>From Space:
capacity = 8716288 (8.3125MB)
used = 0 (0.0MB)
free = 8716288 (8.3125MB)
0.0% used
To Space:
capacity = 8716288 (8.3125MB)
used = 0 (0.0MB)
free = 8716288 (8.3125MB)
0.0% used
concurrent mark-sweep generation:
capacity = 986513408 (940.8125MB)
used = 974120624 (928.9938201904297MB)
free = 12392784 (11.818679809570312MB)
98.7437794661986% used
Perm Generation:
capacity = 186138624 (177.515625MB)
used = 111186864 (106.03605651855469MB)
free = 74951760 (71.47956848144531MB)
59.73336517196989% used
I'm not clear what any of that says though. The sections have different
names to the ones on the manual page.
The -histo command one doesn't work though:
"10736: Insufficient memory or insufficient privileges to attach
The -F option can be used when the target process is not responding"
(running it as admin so shouldn't be any privilege issues).
10x more memory usage is fine - but how do I give GeoServer more access to
memory? It's not using much of the 5G I'm trying to give it currently.
Cheers,
Jonathan
On 29 January 2014 15:14, Andrea Aime <andrea.a...@geo-solutions.it> wrote:
> On Wed, Jan 29, 2014 at 3:54 PM, Jonathan Moules <
> jonathanmou...@warwickshire.gov.uk> wrote:
>
>> Hi List,
>> I've been getting a lot of OutOfMemoryError errors in my logs over the
>> past few days, to the extent that all three instances of my live service
>> died yesterday afternoon!
>>
>> GeoServer 2.4.3
>> Windows Server 2008 R2 -64bit. - The machine has ~30GB RAM, but each
>> tomcat instance never uses more than 1.5GB.
>> Tomcat 6
>>
>> Environmental variables for each instance:
>>
>>> set JAVA_OPTS= -Xmx5G -Xms2G -XX:MaxPermSize=256m
>>> set JAVA_OPTS=%JAVA_OPTS% -XX:+UseConcMarkSweepGC -XX:+UseParNewGC
>>> -XX:ParallelGCThreads=4
>>
>>
>>
>> Example of the error:
>>
>> 2014-01-29 12:12:34,082 ERROR [geotools.rendering] - Java heap space
>>> java.lang.OutOfMemoryError: Java heap space
>>> at java.awt.image.DataBufferByte.<init>(Unknown Source)
>>> at java.awt.image.ComponentSampleModel.createDataBuffer(Unknown Source)
>>> at sun.awt.image.ByteInterleavedRaster.<init>(Unknown Source)
>>> at
>>> sun.awt.image.ByteInterleavedRaster.createCompatibleWritableRaster(Unknown
>>> Source)
>>> at
>>> sun.awt.image.BufferedImageGraphicsConfig.createCompatibleImage(Unknown
>>> Source)
>>> at java.awt.GraphicsConfiguration.createCompatibleImage(Unknown Source)
>>> at
>>> org.geotools.renderer.lite.DelayedBackbufferGraphic.init(DelayedBackbufferGraphic.java:71)
>>> at
>>> org.geotools.renderer.lite.StreamingRenderer$PaintShapeRequest.execute(StreamingRenderer.java:3445)
>>> at
>>> org.geotools.renderer.lite.StreamingRenderer$PainterThread.run(StreamingRenderer.java:3657)
>>> at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
>>> at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
>>> at java.util.concurrent.FutureTask.run(Unknown Source)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
>>> Source)
>>> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>>> at java.lang.Thread.run(Unknown Source)
>>> 2014-01-29 12:12:34,082 ERROR [geoserver.ows] -
>>> org.geoserver.platform.ServiceException: Rendering process failed
>>> at
>>> org.geoserver.wms.map.RenderedImageMapOutputFormat.produceMap(RenderedImageMapOutputFormat.java:507)
>>> at
>>> org.geoserver.wms.map.RenderedImageMapOutputFormat.produceMap(RenderedImageMapOutputFormat.java:251)
>>> at
>>> org.geoserver.wms.map.RenderedImageMapOutputFormat.produceMap(RenderedImageMapOutputFormat.java:123)
>>
>>
>>
>> This hasn't happened before. The only change I've made to the systems
>> recently was:
>> - Increase all Oracle stores "Fetch size" from 1000 to 10,000
>>
>
> This parameter increases 10 times the memory used to keep the records
> retrieved from the database
> (but reduces by the same factor the number of round trips).
>
> If your instances were already close to being OOM, this might as well have
> been the drop that made the
> bucket overflow.
>
> See also
> http://docs.geoserver.org/latest/en/user/production/troubleshooting.html#jmap
> for tools to analyze OOM situations
>
> Cheers
> Andrea
>
>
> --
> == Our support, Your Success! Visit http://opensdi.geo-solutions.it for
> more information ==
>
> Ing. Andrea Aime
> @geowolf
> Technical Lead
>
> GeoSolutions S.A.S.
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
> phone: +39 0584 962313
> fax: +39 0584 1660272
> mob: +39 339 8844549
>
> http://www.geo-solutions.it
> http://twitter.com/geosolutions_it
>
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