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Posted to users@tomcat.apache.org by su...@wipro.com on 2011/05/30 14:57:47 UTC
Exception in thread ""http-bio-8080"-exec-9" java.lang.OutOfMemoryError: Java heap space
Hi,
I am getting an error as follows
"Exception in thread ""http-bio-8080"-exec-9"
java.lang.OutOfMemoryError: Java heap space".
I am running my jsp application on a windows machine with Tomcat 7.0.8
Any pointers?
Thanks in advance,
Sunil.
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Re: Exception in thread ""http-bio-8080"-exec-9" java.lang.OutOfMemoryError:
Java heap space
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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André,
On 5/30/2011 12:24 PM, André Warnier wrote:
> Note also that running out of Heap space does not necessarily mean that
> your classes have leaks. It can also mean that they are just using
> memory to a point where your allocated Heap space is simply not sufficient.
+1
> Looking at the stack trace below, I find it unlikely that the code
> itself in
> org.apache.tomcat.util.http.FastHttpDateFormat.getCurrentDate
> , by itself, would use up the Heap. However, if by the time it is
> called, the Heap is already 99% full, it just might.
+1
OOMEs can occur at any time. It's almost never a problem in the code
shown in the stack trace. Most OOMEs I have seen do not even contain
stack traces.
- -chris
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Re: Exception in thread ""http-bio-8080"-exec-9" java.lang.OutOfMemoryError:
Java heap space
Posted by André Warnier <aw...@ice-sa.com>.
By the way, in addition to the details below, you may want to also indicate with what Heap
size you are running Tomcat. I suppose that the IBM Heap analyser you are using would
tell you that. Otherwise, if you are running Tomcat as a Windows Service, use the GUI
application (tomcat7w.exe) to examine the Java JVM options tab.
Note also that running out of Heap space does not necessarily mean that your classes have
leaks. It can also mean that they are just using memory to a point where your allocated
Heap space is simply not sufficient.
Starting Tomcat with a Heap of 64M and starting 1000 request threads simultaneously would
do it nicely also.
Looking at the stack trace below, I find it unlikely that the code itself in
org.apache.tomcat.util.http.FastHttpDateFormat.getCurrentDate
, by itself, would use up the Heap. However, if by the time it is called, the Heap is
already 99% full, it just might.
André Warnier wrote:
> Well maybe then you should have posted that stack trace and the comments
> below to the list, and maybe someone would then have taken a closer look.
>
> I apologise (a little bit) for my original answer, but you must admit
> that with the information you posted before, it was hard to make the
> difference between that, and someone posting : "Tomcat doesn't work. Can
> you help ?"
>
>
> sunil.shevante@wipro.com wrote:
>> Hi Andre,
>>
>> I am not kidding.
>>
>> My application has only 8 to 10 classes. I checked the heap using IBM
>> heap analyser and my objects are not leaking memory.
>>
>> I am guessing that this is a bug in tomcat 7. Let me know in case you
>> can make any sense out of the trace.
>>
>> =======================================================================================
>>
>> Exception in thread ""http-bio-8080"-exec-12"
>> java.lang.OutOfMemoryError: Java heap space
>> at java.util.LinkedHashMap.createEntry(Unknown Source)
>> at java.util.LinkedHashMap.addEntry(Unknown Source)
>> at java.util.HashMap.put(Unknown Source)
>> at
>> sun.util.resources.OpenListResourceBundle.loadLookup(Unknown Source)
>> at
>> sun.util.resources.OpenListResourceBundle.loadLookupTablesIfNecessary(Unknown
>> Source)
>> at
>> sun.util.resources.OpenListResourceBundle.handleGetObject(Unknown Source)
>> at
>> sun.util.resources.TimeZoneNamesBundle.handleGetObject(Unknown Source)
>> at java.util.ResourceBundle.getObject(Unknown Source)
>> at java.util.ResourceBundle.getObject(Unknown Source)
>> at java.util.ResourceBundle.getStringArray(Unknown Source)
>> at sun.util.TimeZoneNameUtility.retrieveDisplayNames(Unknown
>> Source)
>> at sun.util.TimeZoneNameUtility.retrieveDisplayNames(Unknown
>> Source)
>> at java.util.TimeZone.getDisplayNames(Unknown Source)
>> at java.util.TimeZone.getDisplayName(Unknown Source)
>> at java.text.SimpleDateFormat.subFormat(Unknown Source)
>> at java.text.SimpleDateFormat.format(Unknown Source)
>> at java.text.SimpleDateFormat.format(Unknown Source)
>> at java.text.DateFormat.format(Unknown Source)
>> at
>> org.apache.tomcat.util.http.FastHttpDateFormat.getCurrentDate(FastHttpDateFormat.java:115)
>>
>> at
>> org.apache.coyote.http11.AbstractHttp11Processor.prepareResponse(AbstractHttp11Processor.java:926)
>>
>> at
>> org.apache.coyote.http11.AbstractHttp11Processor.action(AbstractHttp11Processor.java:739)
>>
>> at org.apache.coyote.Response.action(Response.java:170)
>> at org.apache.coyote.Response.sendHeaders(Response.java:350)
>> at
>> org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:308)
>> at
>> org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:275)
>> at
>> org.apache.catalina.connector.Response.finishResponse(Response.java:501)
>> at
>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
>>
>> at
>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
>>
>> at
>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
>>
>> at
>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
>>
>> at
>> org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)
>>
>> at
>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
>> Exception in thread
>> "ContainerBackgroundProcessor[StandardEngine[Catalina]]"
>> java.lang.OutOfMemoryError: Java heap space
>> at java.lang.reflect.Array.newArray(Native Method)
>> at java.lang.reflect.Array.newInstance(Unknown Source)
>> at java.util.AbstractCollection.toArray(Unknown Source)
>> at
>> org.apache.catalina.session.ManagerBase.findSessions(ManagerBase.java:705)
>>
>> at
>> org.apache.catalina.session.ManagerBase.processExpires(ManagerBase.java:527)
>>
>> at
>> org.apache.catalina.session.ManagerBase.backgroundProcess(ManagerBase.java:518)
>>
>> at
>> org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1214)
>>
>> at
>> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1393)
>>
>> at
>> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1403)
>>
>> at
>> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1403)
>>
>> at
>> org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1382)
>>
>> at java.lang.Thread.run(Unknown Source)
>> =======================================================================================
>>
>>
>> Thanks,
>> Sunil.
>>
>> -----Original Message-----
>> From: André Warnier [mailto:aw@ice-sa.com] Sent: Monday, May 30, 2011
>> 7:25 PM
>> To: Tomcat Users List
>> Subject: Re: Exception in thread ""http-bio-8080"-exec-9"
>> java.lang.OutOfMemoryError: Java heap space
>>
>> You are kidding us, right ?
>>
>> But just in case you are not, what is the part which you do not
>> understand in
>>
>> "java.lang.OutOfMemoryError: Java heap space".
>>
>> ?
>>
>> http://lmgtfy.com/?q=java.lang.OutOfMemoryError:%20Java%20heap%20space
>>
>> sunil.shevante@wipro.com wrote:
>>> Hi,
>>>
>>>
>>>
>>> I am getting an error as follows
>>>
>>>
>>>
>>> "Exception in thread ""http-bio-8080"-exec-9"
>>> java.lang.OutOfMemoryError: Java heap space".
>>>
>>>
>>>
>>> I am running my jsp application on a windows machine with Tomcat 7.0.8
>>>
>>>
>>>
>>> Any pointers?
>>>
>>>
>>
>>
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>>
>>
>> Please do not print this email unless it is absolutely necessary.
>> The information contained in this electronic message and any
>> attachments to this message are intended for the exclusive use of the
>> addressee(s) and may contain proprietary, confidential or privileged
>> information. If you are not the intended recipient, you should not
>> disseminate, distribute or copy this e-mail. Please notify the sender
>> immediately and destroy all copies of this message and any attachments.
>> WARNING: Computer viruses can be transmitted via email. The recipient
>> should check this email and any attachments for the presence of
>> viruses. The company accepts no liability for any damage caused by any
>> virus transmitted by this email.
>> www.wipro.com
>>
>
>
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RE: Exception in thread ""http-bio-8080"-exec-9"
java.lang.OutOfMemoryError: Java heap space
Posted by "Caldarale, Charles R" <Ch...@unisys.com>.
> From: André Warnier [mailto:aw@ice-sa.com]
> Subject: Re: Exception in thread ""http-bio-8080"-exec-9" java.lang.OutOfMemoryError: Java heap space
> I apologise (a little bit) for my original answer
You shouldn't apologize; the OP has still not provided any useful information (just denial of responsibility), and has violated mailing list protocol by replying directly to you rather than to the list.
He's nil-for-two at this point; how many wickets do we give him?
- Chuck
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Re: Exception in thread ""http-bio-8080"-exec-9" java.lang.OutOfMemoryError:
Java heap space
Posted by André Warnier <aw...@ice-sa.com>.
Well maybe then you should have posted that stack trace and the comments below to the
list, and maybe someone would then have taken a closer look.
I apologise (a little bit) for my original answer, but you must admit that with the
information you posted before, it was hard to make the difference between that, and
someone posting : "Tomcat doesn't work. Can you help ?"
sunil.shevante@wipro.com wrote:
> Hi Andre,
>
> I am not kidding.
>
> My application has only 8 to 10 classes. I checked the heap using IBM heap analyser and my objects are not leaking memory.
>
> I am guessing that this is a bug in tomcat 7. Let me know in case you can make any sense out of the trace.
>
> =======================================================================================
> Exception in thread ""http-bio-8080"-exec-12" java.lang.OutOfMemoryError: Java heap space
> at java.util.LinkedHashMap.createEntry(Unknown Source)
> at java.util.LinkedHashMap.addEntry(Unknown Source)
> at java.util.HashMap.put(Unknown Source)
> at sun.util.resources.OpenListResourceBundle.loadLookup(Unknown Source)
> at sun.util.resources.OpenListResourceBundle.loadLookupTablesIfNecessary(Unknown Source)
> at sun.util.resources.OpenListResourceBundle.handleGetObject(Unknown Source)
> at sun.util.resources.TimeZoneNamesBundle.handleGetObject(Unknown Source)
> at java.util.ResourceBundle.getObject(Unknown Source)
> at java.util.ResourceBundle.getObject(Unknown Source)
> at java.util.ResourceBundle.getStringArray(Unknown Source)
> at sun.util.TimeZoneNameUtility.retrieveDisplayNames(Unknown Source)
> at sun.util.TimeZoneNameUtility.retrieveDisplayNames(Unknown Source)
> at java.util.TimeZone.getDisplayNames(Unknown Source)
> at java.util.TimeZone.getDisplayName(Unknown Source)
> at java.text.SimpleDateFormat.subFormat(Unknown Source)
> at java.text.SimpleDateFormat.format(Unknown Source)
> at java.text.SimpleDateFormat.format(Unknown Source)
> at java.text.DateFormat.format(Unknown Source)
> at org.apache.tomcat.util.http.FastHttpDateFormat.getCurrentDate(FastHttpDateFormat.java:115)
> at org.apache.coyote.http11.AbstractHttp11Processor.prepareResponse(AbstractHttp11Processor.java:926)
> at org.apache.coyote.http11.AbstractHttp11Processor.action(AbstractHttp11Processor.java:739)
> at org.apache.coyote.Response.action(Response.java:170)
> at org.apache.coyote.Response.sendHeaders(Response.java:350)
> at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:308)
> at org.apache.catalina.connector.OutputBuffer.close(OutputBuffer.java:275)
> at org.apache.catalina.connector.Response.finishResponse(Response.java:501)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:188)
> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:166)
> at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:288)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
> Exception in thread "ContainerBackgroundProcessor[StandardEngine[Catalina]]" java.lang.OutOfMemoryError: Java heap space
> at java.lang.reflect.Array.newArray(Native Method)
> at java.lang.reflect.Array.newInstance(Unknown Source)
> at java.util.AbstractCollection.toArray(Unknown Source)
> at org.apache.catalina.session.ManagerBase.findSessions(ManagerBase.java:705)
> at org.apache.catalina.session.ManagerBase.processExpires(ManagerBase.java:527)
> at org.apache.catalina.session.ManagerBase.backgroundProcess(ManagerBase.java:518)
> at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1214)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1393)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1403)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1403)
> at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1382)
> at java.lang.Thread.run(Unknown Source)
> =======================================================================================
>
> Thanks,
> Sunil.
>
> -----Original Message-----
> From: André Warnier [mailto:aw@ice-sa.com]
> Sent: Monday, May 30, 2011 7:25 PM
> To: Tomcat Users List
> Subject: Re: Exception in thread ""http-bio-8080"-exec-9" java.lang.OutOfMemoryError: Java heap space
>
> You are kidding us, right ?
>
> But just in case you are not, what is the part which you do not understand in
>
> "java.lang.OutOfMemoryError: Java heap space".
>
> ?
>
> http://lmgtfy.com/?q=java.lang.OutOfMemoryError:%20Java%20heap%20space
>
> sunil.shevante@wipro.com wrote:
>> Hi,
>>
>>
>>
>> I am getting an error as follows
>>
>>
>>
>> "Exception in thread ""http-bio-8080"-exec-9"
>> java.lang.OutOfMemoryError: Java heap space".
>>
>>
>>
>> I am running my jsp application on a windows machine with Tomcat 7.0.8
>>
>>
>>
>> Any pointers?
>>
>>
>
>
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> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
> Please do not print this email unless it is absolutely necessary.
>
> The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments.
>
> WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.
>
> www.wipro.com
>
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Re: Exception in thread ""http-bio-8080"-exec-9" java.lang.OutOfMemoryError:
Java heap space
Posted by André Warnier <aw...@ice-sa.com>.
You are kidding us, right ?
But just in case you are not, what is the part which you do not understand in
"java.lang.OutOfMemoryError: Java heap space".
?
http://lmgtfy.com/?q=java.lang.OutOfMemoryError:%20Java%20heap%20space
sunil.shevante@wipro.com wrote:
> Hi,
>
>
>
> I am getting an error as follows
>
>
>
> "Exception in thread ""http-bio-8080"-exec-9"
> java.lang.OutOfMemoryError: Java heap space".
>
>
>
> I am running my jsp application on a windows machine with Tomcat 7.0.8
>
>
>
> Any pointers?
>
>
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