Server restarting - Out of Memory Exception

Hi,
We are using Websphere 5.1 and after our recent production deployment, server is restarting every 3-4 hrs. I am able to see some OutOfMemory and stack overflow exception.
Is there a way I can find out what piece of code is causing the problem and any tips for not getting in this problem in the future...
Thanks in advance...
Karan

Your code is leaking resources somewhere. Use a profiler to see what eats memory.

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Hi,
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My Server details,
Windows 2008 R2 64 bit, RAM 8 GB,
The required BPM s/w I installed from the link below,
http://www.oracle.com/technetwork/middleware/bpm/downloads/index.html?ssSourceSiteId=ocomen
Thanks in advance for your help.
Regards,
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Edited by: user13821489 on 06-Feb-2011 22:45

I had to increase JVM xmx/maxperm in the "set*Env.sh" scripts in the directory where you start WLS. In my dev environment, deploying BAM & BPM together with the Admin server, I finally allocated 4GB max. Jdev.conf is also better if you allocate > 1GB - mine is 1.4GB. I also watch process memory. Multiple re-deployments in my development environment seem to increase the memory, even if I remove process instances and undeploy first. I don't understand the internals very well so perhaps it is behaving correctly, but restarting WLS frees the unused memory that I expected gc to reclaim.

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Moving content databases from 2010 to 2013 August CU. Have 7 databases attached and ready to go, all the content is crawled successfully except zip files. Getting errors such as
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Processing this item failed because the parser server ran out of memory. ( Error parsing document 'http://sharepoint/materials-ca/HPSActiveCDs/Votrevieprofessionnelleetvotrecarrireenregistrement.zip'. Document failed to be processed. It probably crashed the
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I have written a JAVA program to read an AutoCAD DXF file and grapgically display the contents as in AutoCAD. Whwn i try to pass a particular file ( say 15MB)
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Out of Memory exception

Hi All,
I am using Weblogic server 10.3.2 . when 3 to 5 people hitting server after some time it is giving out of memory Exception ,even i assigned memory parameters maxPermSize:1024 then also i am getting same error.
Application developed using Jdeveloper11g.
Can you please help me figure out the problem.
Thanks and Regards
Sreedhar

take a heap dump and use Eclipse MAT to examine the content of the heap
Only if you understand the kind of objects which fill your heap you can solve your problem.
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Getting out of memory exception while loading images in web browser control one by one in windows phone 8 silverlight application?

Hi,
I am developing a windows phone 8 silver light application .
In my app I am displaying images in web browser control one by one , those images are the web links , the problem is after displaying 2 to 3 images I am getting out of memory exception .
I searched for this exception how to over come , everybody are saying memory profiling ,..etc but really I dont know how to release the memory and how to clear the memory .
In some sites they are adding this
<FunctionalCapabilities>
<FunctionalCapability Name="ID_FUNCCAP_EXTEND_MEM"/>
</FunctionalCapabilities>
by doing this am I free from out of memory exception?
Any help ,
Thanks...
Suresh.M

string HtmlString = "<!DOCTYPE html><html><head><meta name='viewport' content='width=device-width,initial-scale=1.0, user-scalable=yes' /></head>";
HtmlString = HtmlString + "<body>";
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HtmlString = HtmlString + "</body></html>";
innerpagebrowser.NavigateToString(HtmlString);
that image source is the web link for example www.sss.com/files/xxx/123.jpg .
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Suresh.M

Server goes out of memory when annotating TIFF File. Help with Tiled Images

I am new to JAI and have a problem with the system going out of memory
Objective:
1)Load up a TIFF file (each approx 5- 8 MB when compressed with CCITT.6 compression)
2)Annotate image (consider it as a simple drawString with the Graphics2D object of the RenderedImage)
3)Send it to the servlet outputStream
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Server goes out of memory when 5 threads try to access it concurrently
Runtime conditions:
VM param set to -Xmx1024m
Observation
Writing the files takes a lot of time when compared to reading the files
Some more information
1)I need to do the annotating at a pre-defined specific positions on the images(ex: in the first quadrant, or may be in the second quadrant).
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Thx
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ImageReader imgReader = null;
ImageWriter imgWriter = null;
TiledImage in_image = null, out_image = null;
IIOMetadata metadata = null;
ImageOutputStream ios = null;
try {
Iterator readIter = ImageIO.getImageReadersBySuffix("tif");
imgReader = (ImageReader) readIter.next();
imgReader.setInput(ImageIO.createImageInputStream(file));
metadata = imgReader.getImageMetadata(0);
in_image = new TiledImage(JAI.create("fileload", file.getPath()), true);
System.out.println("Image Read!");
Annotater annotater = new Annotater(in_image);
out_image = annotater.annotate(wText, param);
Iterator writeIter = ImageIO.getImageWritersBySuffix("tif");
if (writeIter.hasNext()) {
imgWriter = (ImageWriter) writeIter.next();
ios = ImageIO.createImageOutputStream(out);
imgWriter.setOutput(ios);
ImageWriteParam iwparam = imgWriter.getDefaultWriteParam();
if (iwparam instanceof TIFFImageWriteParam) {
iwparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
TIFFDirectory dir = (TIFFDirectory) out_image.getProperty("tiff_directory");
double compressionParam = dir.getFieldAsDouble(BaselineTIFFTagSet.TAG_COMPRESSION);
setTIFFCompression(iwparam, (int) compressionParam);
else {
iwparam.setCompressionMode(ImageWriteParam.MODE_COPY_FROM_METADATA);
System.out.println("Trying to write Image ....");
imgWriter.write(null, new IIOImage(out_image, null, metadata), iwparam);
System.out.println("Image written....");
finally {
if (imgWriter != null)
imgWriter.dispose();
if (imgReader != null)
imgReader.dispose();
if (ios != null) {
ios.flush();
ios.close();
}

user8684061 wrote:
U are right, SGA is too large for my server.
I guess oracle set SGA automaticlly while i choose default installion , but ,why SGA would be so big? Is oracle not smart enough ?Default database configuration is going to reserve 40% of physical memory for SGA for an instance, which you as a user can always change. I don't see anything wrong with that to say Oracle is not smart.
If i don't disincrease SGA, but increase max-shm-memory, would it work?This needs support from the CPU architecture (32 bit or 64 bit) and the kernel as well. Read more about the huge pages.

URLStream.readBytes always throw out of memory exception (errorID=1000)

When I try to load a file as 180MBytes by using URLStream.readBytes().
In some PCs, it's OK.
But in some PCs, there are always [out of memory] exception (errorID=1000) even such PC still had enough memory.
For example:
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For file with little size such as 30M, there isn't such problem.
Could any body give some suggestion?
Best regards,
Sourcecode is very simple like:
var myStream:URLStream;
var inputBytes: ByteArray = new ByteArray();
... do load ...
// load by progressive event. I only deal progress load once, and ignore all later progressive load events.
// for example first 500KBytes was read.
myStream(inputBytes,inputBytes.length);
// load again when all datas is loaded completely. For example, 180MBytes should be read.
try {
    myStream(inputBytes,inputBytes.length);
} catch(e:*) {
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When I try to load a file as 180MBytes by using URLStream.readBytes().
In some PCs, it's OK.
But in some PCs, there are always [out of memory] exception (errorID=1000) even such PC still had enough memory.
For example:
   Total memory is 2G, current used is 1.43G, but URLStream.readBytes() still throw such exception.
For file with little size such as 30M, there isn't such problem.
Could any body give some suggestion?
Best regards,
Sourcecode is very simple like:
var myStream:URLStream;
var inputBytes: ByteArray = new ByteArray();
... do load ...
// load by progressive event. I only deal progress load once, and ignore all later progressive load events.
// for example first 500KBytes was read.
myStream(inputBytes,inputBytes.length);
// load again when all datas is loaded completely. For example, 180MBytes should be read.
try {
    myStream(inputBytes,inputBytes.length);
} catch(e:*) {
    // warning log

Large DataTable causes out of memory exception

Hello Support
We have a datatable that returns 112970 records and have 51 columns.
When we try generate an xls file or display data result in grid view than "System Out of memory exception" is thrown.
OS : Windows 2003 Enterprise 32 Bit
HP DL380 G4
CPU 2x3.6GHZ
6 GB RAM
Can you help us to find a resolution to this issue?
Thank you
Shrenik
Maurice

Thanks for reply.
1> .XLXS format allows us >= 133000 records in spread sheet some times and some times it throws Exception of type 'System.OutOfMemoryException'.
2> We are using asp.net gridview.
Exception:
ExceptionObject : Message : Exception of type 'System.OutOfMemoryException' was thrown.
Data : System.Collections.ListDictionaryInternal
InnerException : Nothing
TargetSite : System.String ToBase64String(Byte[], Int32, Int32, System.Base64FormattingOptions)
StackTrace : at System.Convert.ToBase64String(Byte[] inArray, Int32 offset, Int32 length, Base64FormattingOptions options)
at System.Web.UI.ObjectStateFormatter.Serialize(Object stateGraph, Purpose purpose)
at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter2.Serialize(Object state, Purpose purpose)
at System.Web.UI.Util.SerializeWithAssert(IStateFormatter2 formatter, Object stateGraph, Purpose purpose)
at System.Web.UI.HiddenFieldPageStatePersister.Save()
at System.Web.UI.Page.SavePageStateToPersistenceMedium(Object state)
at System.Web.UI.Page.SaveAllState()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) HelpLink : Nothing Source : mscorlib HResult : -2147024882
Please see below code for more information.
protected void Button1_Click(object sender, EventArgs e)
try
DataTable _dt = GetDataFromDB();
ViewState["dtQueryResults"] = _dt;
BindgvQueryResults();
messageLabel.Text = "";
catch (Exception ex)
messageLabel.Text = "Query execute error: " + ex.Message;
private void BindgvQueryResults()
if (ViewState["dtQueryResults"] != null)
DataView _dv = ((DataTable)ViewState["dtQueryResults"]).DefaultView;
if (ViewState["gvQRSortExpression"] != null && ViewState["gvQRSortDirection"] != null)
_dv.Sort = ViewState["gvQRSortExpression"].ToString() + ViewState["gvQRSortDirection"].ToString();
gvQueryResults.DataSource = _dv;
gvQueryResults.DataBind();
private DataTable GetDataFromDB()
SqlCommand _Cmd = null;
SqlConnection _Con = null;
try
_Con = DBInteraction.InstantiateConnection();
_Cmd = new SqlCommand();
_Cmd.Connection = _Con;
_Cmd.CommandTimeout = 300;
if (_Con.State != ConnectionState.Open)
_Con.Open();
try
_Cmd.CommandText = CriteriaBuilder1.QueryTransformer.Sql;
catch(NullReferenceException)
throw new ApplicationException("Error message.");
if(string.IsNullOrEmpty(CriteriaBuilder1.QueryTransformer.Sql))
throw new ApplicationException("This query does not have any text. Please add views in the query and try again.");
_Cmd.CommandType = CommandType.Text;
DataTable _dt = new DataTable();
SqlDataAdapter adaPTer = new SqlDataAdapter(_Cmd);
adaPTer.AcceptChangesDuringFill = false;
adaPTer.Fill(_dt);
if (_dt.Rows.Count == 0)
throw new ApplicationException("Your request did not return any results.");
return _dt;
catch (Exception ex)
throw ex;
finally
if (_Con.State == ConnectionState.Open)
_Con.Close();
Maurice

Large Bitmaps create out of memory exception

Hello,
I try to generate a "BufferedImage" from a Windows Bitmap file ( xxxx.BMP ) .
I can read and generate relatively images from relatively small files (e.g. 852x626 pixels works fine),
but if it comes to larger images, I get an out of memory exception.
Has anybody an idea how to convince Java to read also large BMP image files.
If I create an awt "Image" even large images (eg 1200x5000 pixels are generated).
But unfortunately I have found no way to convert an "Image" to a "BufferedImage" and
only "BufferedImage" offers all the processing methods needed.
This is the code snippet I wrote:
------------ start of code snippet -----------------------------------------------------
try {
DataBufferInt dbBMPInt = new DataBufferInt(nwidth*nheight);
System.out.println("DataBufferInt = "+dbBMPInt);
int [] bitMasks = new int[3];
bitMasks[0] = (int)0xff<<16;
bitMasks[1] = (int)0xff<<8;
bitMasks[2] = (int)0xff;
SinglePixelPackedSampleModel spSM = new SinglePixelPackedSampleModel(DataBuffer.TYPE_INT,nwidth,nheight,bitMasks);
System.out.println("SinglePixelPackedSampleModel = "+spSM);
WritableRaster bmpRaster = WritableRaster.createWritableRaster((SampleModel) spSM, (DataBuffer) dbBMPInt, new Point(0,0));
System.out.println("WritableRaster = "+bmpRaster);
bmpImage = new BufferedImage(nwidth,nheight,BufferedImage.TYPE_3BYTE_BGR);
System.out.println("BufferedImage = "+bmpImage);
bmpImage.setData(bmpRaster);
catch (Exception exCrBm)
{ /* 001 start catch */
exCrBm.printStackTrace ();
} /* 001 end catch */
----------------------------------------------- end of code snippet --------------------
and this is the generated output.
File type is :BM
Size of file is :1600110
Size of bitmapinfoheader is :40
Width is :852
Height is :626
Planes is :1
BitCount is :24
Compression is :0
SizeImage is :1600056
DataBufferInt = java.awt.image.DataBufferInt@1774b9b
SinglePixelPackedSampleModel = java.awt.image.SinglePixelPackedSampleModel@8080b54
WritableRaster = IntegerInterleavedRaster: width = 852 height = 626 #Bands = 3 xOff = 0 yOff = 0 dataOffset[0] 0
BufferedImage = BufferedImage@b9e45a: type = 5 ColorModel: #pixelBits = 24 numComponents = 3 color space = java.awt.color.ICC_ColorSpace@3ef810 transparency = 1 has alpha = false isAlphaPre = false ByteInterleavedRaster: width = 852 height = 626 #numDataElements 3 dataOff[0] = 2
Any help appreciated
Regards
Wolfgang

Increase your maximum heap memory size.
Se -Xmx parameter of java.exe
Have a nice programming day,
Jos�.

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I am getting an Out Of Memory exception while validating my XML against a given XSd which is huge.
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Yes, but increasing the heap size is a temporary solution , isnt there a way where the XML can be validated against an XSD without having to load XSD in memory

Getting an out of memory exception while validating my XML against a XSD

Hello friends,
I have asked this question in following thread too. Pasting it again here just to saye your time
http://forum.java.sun.com/thread.jspa?threadID=690812&tstart=0
I am getting an Out Of Memory exception while validating my XML against a given XSd which is huge.
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Yes, but increasing the heap size is a temporary solution , isnt there a way where the XML can be validated against an XSD without having to load XSD in memory

Oracle.jdbc.driver.T4CPreparedStatement causing out of memory exception

I am using oracle spatial 11.2.0.3 g.
I am getting out of memory exception on a process.
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How to solve it ?

Hi,
We will need a re-producible test case (preferably small) to figure out why you are getting out of memory. You can send it to Oracle Support or email me at alan dot wu at oracle dot com.
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Download Servlet throwing Out Of Memory Exception

I am trying to download file of more than 500 mb through servlet but getting out of memory exception .
Before downloading i am zipping that huge file .
try {
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      file =null;
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      InputStream fileToDownload = new FileInputStream(
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cotton.m wrote:
My zip suggestion was as follows.
Take the file. Do not set the Content length header. Do set the Content encoding header to gzip. Create a GZIP output stream using the servlet output stream. Read the unzipped file in and output it through the gzip output stream.
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response.setContentType("application/gzip");
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byte buf[] = new byte[BUF_SIZE];
int read;
while ((read = fileToDownload.read(buf)) != -1) {
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How to overcome a "System out of memory exception"?

Hi,
As i am running my program , I get (sometimes) an out of memory exception.
I don't know exactly why because I am always doing the same thing so if I get this exception once It should always be so... (of course, as I am trying , no other program is running on my computer! ).
anyway.
I have 3 questions:
1) Do you know how to eliminate this error ?
(I don't mind if the time of execution is longer)
2) I have Win XP, do you think that using a software to build ".exe" files can change the problem ? If so, have you heard about a simple 'one' (I downloaded JET Excelsior, but it seems rather complicated to parametrize)
3) (last but not least) Can someone explain to me WHY there is this type of exception ( I would have thought that when "memory is full", then there is a swap, and the program doesn't stop !
I know there is a lot of questions in one ! ( altough I tried to be short)
Thanks

In answer to your third question, the error occurs when
the JVM runs out of memory, not the OS. Since the OS
controls swapping the fact that the memory space
assigned to the JVM is running low won't cause
swapping to take place. The solution is either a) use
less space by reducing what you have loaded at any
given time or b) increase the amount of memory
available to the JVM. You can user the -Xms, -Xmx and
-Xss switches to increase the amount of memory
available.
Mark

Server restarting - Out of Memory Exception

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