Seems to be a memory leak in itunes 10.6.3.25
I cant seem to find a usefull end-user bug reporting system; so i just post it here: had to redownload all my songs (lots of them); after a few 100 iTunes displayed a message saying something cryptic like that there was not enough memory to save the library or so; little later iTunes completely hung; checked in task manager... about 1GB of memory usage. Just restarted downloading the rest of my music, memory usage is already over 200MB again... think you guys have a memory leak in your downloading or caching code.
Close your iTunes,
Go to command Prompt -
(Win 7/Vista) - START/ALL PROGRAMS/ACCESSORIES, right mouse click "Command Prompt", choose "Run as Administrator".
(Win XP SP2 n above) - START/ALL PROGRAMS/ACCESSORIES/Command Prompt
In the "Command Prompt" screen, type in
netsh winsock reset
Hit "ENTER" key
Restart your computer.
If you do get a prompt after restart windows to remap LSP, just click NO.
Now launch your iTunes and see if it is working normal now.
If you are still having these type of problems after trying the winsock reset, refer to this article to identify which software in your system is inserting LSP:
Apple software on Windows: May see performance issues and blank iTunes Store
http://support.apple.com/kb/TS4123?viewlocale=en_US
Similar Messages
-
OBVIOUS MEMORY LEAK
iTunes about:10.6.3.25
windows 64 bit Home on AMD64 HP G60 laptop
downloaded and installed "iTunes32Setup.exe"
saw the problem and uninstalled it
downloaded and installed "iTunes64Setup.exe"
iTunes about:10.6.3.25
now i see process "iTunes.exe*32
it is ok when it play song list
but ***** UP MEMORY when i click on another song to play. apparently it doesn't release previous player thread
OR,
if you right click on a song, the memory will blow up antother 6MB and won't release it...can do it all day long
-- until run out of memory and iTunes freezes...without any of my changes.
sooooo.. is it the uninstaller or is iTunes64Setup.exe mispackaged or do both have memory problems on AMD 64 ?Unfortunately I was able to repeat the memory leak even with turning the Toolbar off. To replicate the problem, I was able to watch the memory leak each time I actively selected a new song with the iTunes open. I was able to repeat the leak with and without both Spotify and TuneUp Companion running and not running. The only thing I noticed is when both Spotify and iTunes were open, the memory leak from iTunes added insult to injure with Spotify which kept trying to sync up with iTunes local library which would crash Spotify as well. But I can confirm the memory leak is in iTunes 10.6.3.25 (looking forward to 10.6.4 fixing the problem).
-
Since the itunes 10.4.1 update I have memory leaks problems.
Since the itunes 10.4.1 update I have memory leaks problems, Itunes used memory start at about 100 megs as usual but when it play the ram usage climb about 4 kb per second ( one time I had itunes using 690 megs !). I had to periodically close and restart Itunes to clear the memory.
Someone has suggestion to resolve this problem?Same issue, Running Windows 7 x64 with 6 Gigs of RAM and have iTunes 10.4.1 32bit version.
I wanted to break in some headphones over the weekend, so left it playing a loop of songs. Came back on Monday to see my machine using a huge amount of RAM and iTunes just froze.
Here is a shot of my Task Manager showing iTunes was using 1.5gigs of Memory. -
How can I address a memory leak problem with Firefox?
I have happily used Firefox for the past 7 years, and have rarely had difficulties. However, I am having some trouble now; Firefox (running 3.6.6) seems to have a memory leak on my machine. It's slower than what was discussed in other forum posts, but it still scales up slowly to multiple hundred MBs of Memory with very little CPU usage.
I have tried disabling add-ons and extensions, but this does not stop the problem. I have cleared my cache and other stored data, but that also does not help. Has anyone experienced a similar problem that might be able to help?
== This happened ==
Every time Firefox opened
== within last two weeksHi reble0708,
I have Java console disabled on my Firefox browser.Everything is working fine for me. There maybe other problem on your browser which is making PDF document faded and blurry. Can you post the link where you found the problem viewing the PDF document?
Btw, you can go to ftp://ftp.mozilla.org/pub/firefox/releases/ and select the previous version of Firefox from the given options. There's no need to uninstall Firefox before you downgrade to the previous version of it.But before new installation, backup your Firefox profile folder.
edit: replaced random unofficial download site link. -
Help with Java Memory Leak in URLConnection
Hi everyone,
I can't seem to find the memory leak in the below code, if anyone could help, i would greatly appreciate it. The jist of the code is: I open up a URLConnection to update a ColdFusion page that takes in URL parameters passed in my URL. Then, I get the response. I also check for proxy usage and take that into consideration when making the connection.
I have one class to handle the Connections, Connect.java:
* Connection using Username and Password, as well as boolean option to use Basic Proxy Authentication
public Connect(String pHost, String pPort, String urlString,
String pUsername, String pPassword, boolean useProxy) {
this.pHost = pHost;
this.pPort = pPort;
this.urlString = urlString;
this.pUsername = pUsername;
this.pPassword = pPassword;
this.useProxy = useProxy;
* Get the Input Stream from the Connection given a specific URL
public java.io.InputStream getInputStream(String urlString) {
if (urlString == null) urlString = this.urlString;
exDialog = new ExceptionDialog(new javax.swing.JFrame());
try {
String auth = "";
if (useProxy) {
System.getProperties().put("proxySet", "true");
System.getProperties().put("proxyHost", pHost);
System.getProperties().put("proxyPort", pPort);
String authString = "";
if (pUsername != null && pUsername != "") authString = pUsername + ":";
else authString = "username:";
if (pPassword != null && pPassword != "") authString = authString + pPassword;
else authString = authString + "password";
auth = "Basic " + new sun.misc.BASE64Encoder().encode(authString.getBytes());
java.net.URL url = new java.net.URL(urlString);
java.net.HttpURLConnection conn = (java.net.HttpURLConnection)url.openConnection();
if (useProxy) conn.setRequestProperty("Proxy-Authorization", auth);
conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0)");
conn.setDoInput( true );
conn.setDoOutput( true );
conn.connect();
return conn.getInputStream();
} catch (java.io.IOException ioe) {
exDialog.showForThrowable(ioe.toString(),ioe);
return null;
}I call the code in Download.java:
Connect conn = new Connect(sm.pHost, sm.pPort, null, sm.pUser, sm.pPass, sm.useProxy);
new BufferedReader(new InputStreamReader(conn.getInputStream(sUpdateURL)));
in.close();For some reason, as I loop through this call, the memory footprint of my program grows through every iteration, eventually resulting in a Java Out of Memory error. I can't track the leak down and it's fairly frustrating. If anyone can help, that would be greatly appreciated. Thanks!One place there might be a memory leak is in the line
exDialog = new ExceptionDialog(new javax.swing.JFrame());Even though the JFrame object goes out of scope when the ExceptionDialog method returns, JFrames stay around until they are closed, even though in this case it isn't even shown on the screen. -
Hello everyone.
I need some help with a problem we are having with our application. It consists on Servlets, JMS with MDBs, Xml parsing...
Our application dequeues messages from an Oracle Queue and sends xml-text message to a servlet. It also receives xml-text and enqueues objects in an Oracle Queue.
And it also has access to Oracle Database (context tables, etc).
We are doing everything on Tru64 Unix (and our tests on Win 2000) and we are using WebLogic 6.1.
Our problem is that we have found that it seems that the garbage collector is not running well. I mean, with the time our system is degrading. The memory use increases. It seems to be a memory leak.
We have used a testing tool, OptimizeIt, and we have found that there are
objects that are increasing the use of memory. If we use the option 'java -verbose' we find that it seems to be Hash objects (HashMap, Hashtable) which are increasing the use of memory. In our code we are not using any hashtable nor any class that extends from it (we have deleted everyone).
Can it be due to a problem with WebLogic? A problem with JMS, queues, etc? A problem with JNDI?
Could anybody please help us?
Thanks in advanced.Yes, we see that there are some entries of the type:
java/util/Hahstable$Entry
java/util/Hahstable
weblogic/jndi/Environment
This entries keep growing and growing with the time.
We have deleted all the Hashtable, Properties and all the kind of Collection objects. I guess WebLogic is using this objects in order to arrange our application runs.
Am I right? Do you know if we can do anything?
Thank you. -
It seems there is a memory leak with JPopupMenu. The following program demonstrates this leak. If you run the program, click on show form, and then close the form, the used memory will be GCd appropriately. If you click on show form, then right click on the table to show the popup (even if you dont do anything else with the popup) then close the form, it never GCs the form. I've tried all kinds of crazy things, but I cant seem to find what is keeping the memory from being GCd.
Peter
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.beans.PropertyChangeListener;
import java.text.DecimalFormat;
import java.util.Timer;
import java.util.TimerTask;
import java.util.Vector;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.AbstractTableModel;
@SuppressWarnings("serial")
public class TriState extends JPanel {
private static final long K = 1024;
private static final long M = K * K;
private static final long G = M * K;
private static final long T = G * K;
protected static int ctr = 1;
private JButton btnShow = new JButton("Show Form");
private JLabel lblMem = new JLabel();
private static final DecimalFormat df = new DecimalFormat("#,##0.#");
protected Timer updateTimer = new Timer();
public TriState() {
this.setLayout(new GridLayout());
add(btnShow);
add(lblMem);
updateTimer.scheduleAtFixedRate(new UpdateTimerTask(), 1000, 1000);
btnShow.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
FrmReferrals fr = new FrmReferrals();
fr.setVisible(true);
class UpdateTimerTask extends TimerTask {
public void run() {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
dumpMemoryUsage();
protected void dumpMemoryUsage() {
System.gc();
Long t = Runtime.getRuntime().totalMemory();
long f = Runtime.getRuntime().freeMemory();
String st = convertToStringRepresentation(t);
String sf = convertToStringRepresentation(f);
String su = convertToStringRepresentation(t - f);
System.out.println("Total:" + st + "(" + t + ") Free:" + sf + "(" + f + ") Used:" + su + "(" + (t - f) + ")");
lblMem.setText(su + "/" + st);
public static String convertToStringRepresentation(final long value) {
final long[] dividers = new long[]{T, G, M, K, 1};
final String[] units = new String[]{"TB", "GB", "MB", "KB", "B"};
if (value < 1)
throw new IllegalArgumentException("Invalid file size: " + value);
String result = null;
for (int i = 0; i < dividers.length; i++) {
final long divider = dividers;
if (value >= divider) {
final double dr = divider > 1 ? (double) value / (double) divider : (double) value;
result = df.format(dr) + units[i];
break;
return result;
private static void createAndShowGUI() {
JFrame frame = new JFrame("SimpleTableDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Create and set up the content pane.
TriState newContentPane = new TriState();
newContentPane.setOpaque(true); // content panes must be opaque
frame.setContentPane(newContentPane);
// Display the window.
frame.pack();
frame.setVisible(true);
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGUI();
protected class PopupMenu extends JPopupMenu {
public PopupMenu() {
JRadioButtonMenuItem item1 = new JRadioButtonMenuItem(new AbstractAction("Insert Item") {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println(e.getActionCommand());
item1.setActionCommand("Insert");
add(item1);
JRadioButtonMenuItem item2 = new JRadioButtonMenuItem(new AbstractAction("Delete Item") {
@Override
public void actionPerformed(ActionEvent e) {
System.out.println(e.getActionCommand());
item2.setActionCommand("Delete");
add(item2);
public class FrmReferrals extends JFrame {
public FrmReferrals() {
super();
init();
protected void init() {
jbInit();
protected void closeIt() {
uninit();
// variables here
protected Dimension dimPreferred = new Dimension(1270, 995);
protected JTabbedPane tabbedPane = new JTabbedPane();
protected JTable tblReferrals = null;
protected PopupMenu popMenu = new PopupMenu();
protected void jbInit() {
setPreferredSize(dimPreferred);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
setTitle("Referrals");
JPanel pnl = new JPanel();
pnl.setOpaque(false);
pnl.setLayout(new BorderLayout());
pnl.add(tabbedPane, BorderLayout.CENTER);
// put it all in the frame
add(pnl);
pack();
setLocationRelativeTo(null);
// init the table and model
ReferralsTableModel ctm = new ReferralsTableModel(buildDummyVector());
tblReferrals = new JTable(ctm);
tblReferrals.setComponentPopupMenu(popMenu);
tblReferrals.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
tabbedPane.add(new JScrollPane(tblReferrals, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED));
addWindowListener(new WindowListener() {
@Override
public void windowActivated(WindowEvent e) {}
@Override
public void windowClosed(WindowEvent e) {}
@Override
public void windowClosing(WindowEvent e) {
closeIt();
@Override
public void windowDeactivated(WindowEvent e) {}
@Override
public void windowDeiconified(WindowEvent e) {}
@Override
public void windowIconified(WindowEvent e) {}
@Override
public void windowOpened(WindowEvent e) {}
protected Vector<DBO_Referrals> buildDummyVector() {
Vector<DBO_Referrals> vr = new Vector<DBO_Referrals>();
for (int x = 0; x < 5000; x++) {
DBO_Referrals r = new DBO_Referrals(x+(5000*ctr));
vr.add(r);
return vr;
protected void uninit() {
tblReferrals.setComponentPopupMenu(null);
for (Component c : popMenu.getComponents()) {
PropertyChangeListener[] pl = c.getPropertyChangeListeners();
for (PropertyChangeListener l : pl)
c.removePropertyChangeListener(l);
if (c instanceof JMenuItem) {
ActionListener [] al = ((JMenuItem)c).getActionListeners();
for (ActionListener l : al) {
((JMenuItem)c).removeActionListener(l);
popMenu = null;
protected class DBO_Referrals {
protected long id;
protected String Employee;
protected String Rep;
protected String Asst;
protected String Client;
protected String Dates;
protected String Status;
protected String Home;
public DBO_Referrals(long id) {
this.id = id;
Employee = "Employee" + id;
Rep = "Rep" + id;
Asst = "Asst" + id;
Client = "Client" + id;
Dates = "Dates" + id;
Status = "Status" + id;
Home = "Home" + id;
public long getId() {
return id;
public String getEmployee() {
return Employee;
public String getRep() {
return Rep;
public String getAsst() {
return Asst;
public String getClient() {
return Client;
public String getDates() {
return Dates;
public String getStatus() {
return Status;
public String getHome() {
return Home;
public class ReferralsTableModel extends AbstractTableModel {
protected Vector<DBO_Referrals> data = new Vector<DBO_Referrals>();
protected String[] sColumns = {"id", "Employee", "Rep", "Assistant", "Client", "Date", "Status", "Home", "R"};
public ReferralsTableModel() {
super();
public ReferralsTableModel(Vector<DBO_Referrals> data) {
this();
this.data = data;
@SuppressWarnings("unchecked")
@Override
public Class getColumnClass(int col) {
switch (col) {
case 0 :
return Long.class;
default :
return String.class;
@Override
public int getColumnCount() {
return sColumns.length;
@Override
public int getRowCount() {
return data.size();
@Override
public Object getValueAt(int row, int col) {
if (row > data.size())
return null;
DBO_Referrals a = data.get(row);
switch (col) {
case 0 :
return a.getId();
case 1 :
return a.getEmployee();
case 2 :
return a.getRep();
case 3 :
return a.getAsst();
case 4 :
return a.getClient();
case 5 :
return a.getDates();
case 6 :
return a.getStatus();
case 7 :
return a.getHome();
case 8 :
return "+";
default :
return null;BTW instead of continually printing out the memory use a profiler (jvisualvm in the jdk/bin directory -> heapdump -> search on your class -> view in instances -> find nearest GC root).
Looks like BasicPopupMenuUI doesn't remove a reference to the JRootPane immediately. As far as I can see it will be removed when another menu shows.
As a hackish workaround you can try this in you FrmReferrals#uninit():
for(ChangeListener listener : MenuSelectionManager.defaultManager().getChangeListeners()) {
if (listener.getClass().getName().contains("MenuKeyboardHelper")) {
try {
Field field = listener.getClass().getDeclaredField("menuInputMap");
field.setAccessible(true);
field.set(listener, null);
} catch (Exception e) {
// ignored
break;
}Funnily enough though it isn't there when I reduce your code to a SSCCE:
import java.awt.*;
import javax.swing.*;
public class TestBasicPopupMenuUILeak extends JFrame {
public TestBasicPopupMenuUILeak() {
super("Not collected right away");
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.getContentPane().add(
new JButton(new AbstractAction("Show frame") {
@Override
public void actionPerformed(ActionEvent e) {
EventQueue.invokeLater(new Runnable() {
public void run() {
JLabel label = new JLabel(
"Right click to show popup, then close this frame."
+ "The frame with not be GCed until another (popup) menu is shown.");
JPopupMenu popup = new JPopupMenu(
"Popup");
popup.add("Item");
label.setComponentPopupMenu(popup);
// named differently so you can find it
// easily in your favorite profiler
JFrame frame = new TestBasicPopupMenuUILeak();
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.getContentPane().add(label);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
} -
SQL Developer - 1.5.5.59.69 - XP - Memory Leak
I am running SQL Developer 1.5.5.59.69 in XP and I am having an issue with what seems to be a memory leak. I left SQL Developer running over night, and when I looked at the task manager, the memory usage was really high, and each time task manager refreshed, the memory usage was going up by a few KB.
Is this issue known by the development team?
KurzYes, and has been happening since day 1, for almost anyone trying the same.
No idea is dev is planning to fix this. Only way to have it tracked is logging a SR through Metalink/MOS.
Regards,
K. -
Suspected memory leak in numbers
Dear All!
I am facing a problem in Numbers, which seems to me a memory leak issue.
The original problem occurred when I tried to process a data set consisting of 6 tables of 6 columns by 600-800 rows. A scatterplot with 6 series has been created using 2 selected columns of each table. The "your startup disk is almost full" was first symptom when I realiser that something is going wrong. I traced back using activity monitor that when I edit the spreadsheet the memory fills up rapidly. Once the memory is full the program starts to use up the swap area. I my case I have about 20 GB empty SSD space. After a few hours of work on this table the entire memory and the SSD was filled up.
To check whether the file is corrupted or something else issuing on I made a mock file to test the behaviour. I could produce the same response with a single table of 2 columns and 3000 rows of random numbers and a scatter plot of the this pairs of numbers.
Originally I have faced the problem on a mid 2014 MBP running OS 10.10.3 (i5, 8GB, 128GB SSD) but I have carried out the mock data experiment also on a 2014 MBA OS10.10.2 (i5, 8GB, 128GB SSD) and I have experienced that the memory usage keeps on increasing as I roll up and down in the table, just like on my MBP and in case of the original file. During the few minutes of the test on the MBA the memory usage of the Numbers application indicated in Activity Monitor shoot up from 70Mb to over 1GB and kept on increasing with every operation carried out in numbers, regardless the type of the operation. In this sense there was no difference whether it was rolling the sheet or saving the file.
The extra applications that are installed on both computers: Latex, and Parallels (but non of them were running during the tests)
On my MBP I ran a leak command in terminal for the Numbers and got the following result.
Last login: Thu Apr 16 14:03:17 on ttys000
Peters-MacBook-Pro:~ xxxxxxxx$ leaks 5743 --nocontext
Process: Numbers [5743]
Path: /Applications/Numbers.app/Contents/MacOS/Numbers
Load Address: 0x102553000
Identifier: com.apple.iWork.Numbers
Version: 3.5.2 (2118)
Build Info: Numbers-2118000000000000~1
Code Type: X86-64
Parent Process: ??? [1]
Date/Time: 2015-04-16 14:13:01.457 +0200
OS Version: Mac OS X 10.10.3 (14D131)
Report Version: 7
Analysis Tool: /usr/bin/leaks
leaks Report Version: 2.0
Process 5743: 1320819 nodes malloced for 996727 KB
Process 5743: 158802 leaks for 871233088 total leaked bytes.
I have searched similar issues on the net and on the community sites but unfortunately could not find any relevant information.
Any help or suggestion would be highly appreciated.Dear Wayne,
Thanks for your suggestions, I will definitely make a bug report. In fact I have already tried it through apples homepage, and I wanted to make a more specific one but to do so you have to become a developer... which would be a really bad joke.
However I did the mock experiment with 700 lines of random data in 2 columns and a scatter plot of the 700 points. The same happens. The memory usage of Numbers went up to 1.63GB... even higher since I have checked.
To answer your questions I have MBP 128 GB SSD of which 20 GB is free, RAM: 8GB
You see... my original problematic dataset consisting of 6 times 500-800 points has been plotted in a fraction of a second, handled as easy as in Excel, LibreOffice or Gnumeric (which are not intended for handling a lot of data; for that purpose I use Matlab or Python). So without any complains or extra effort my data points are plotted beautifully (as lines with no markers to keep the plot clear), but the memory is gradually filled up...
I am not sure it is the right approach to reduce the use of Numbers for very tiny datasets. This would mean that you were unable to make a chart for two years of data of precipitation or temperature or stock value or anything... sounds very unlikely. It sounds like you have a nice car that can go 280 km/h and reach 100 km/h in 4s, with the only the restriction that wheels are designed to fall off at 30 km/h without warning! I don't think that is the case. Would be very unbalanced performance.
Many thanks again. I'll go and make my bug report to get the wheels reinforced .
Peter -
Memory Leak in cwui.ocx (graph control)
Hi!
I'm using cwgraph control (cwui.ocx V2.0.3.413) in VB6. Once I have assigned the graph properties to set UI appearance, I sent 2d arrays to update the plot only (either .plotY or .ChartY, doesn't matter). The application then consumes more and more memory. When I comment out the .plotY or .ChartY code line the problem disappears. So it seems to be a memory leak in the cwui control. Who can help?Keep in mind that the graph keeps its own copy of the data that you pass in via the Plot/Chart methods. It has to do this for several reasons, like if it needs to repaint or you want to pan the data. This could explain what you're seeing if the memory usage is comparable to the amount of data that you're passing in via the Plot/Chart methods. If that's not the case, please post a small test project that demonstrates the problem. Thanks.
- Elton -
Memory leaks in MFC while using CDatabase::OpenEx()
Hi,
This question has been asked previously but the explanation was not in detail and i could never reach to the bottom of it.
I hope i can elaborate more on the problem statement and i can get a resolution/explanation from the experts here.
Consider the following two sample codes;
1.
int count = 200;
for (int i=0; i <count; ++i)
try
CDatabase *db = new CDatabase;
BOOL bRes = db->OpenEx(_T("DSN=MyData;UID=anon;PWD=pass"));
db->Close();
delete db;
db=NULL;
catch (CDBException* e)
e->Delete();
2.
CDatabase *db = new CDatabase;
int count = 200;
for (int i=0; i <count; ++i)
try
BOOL bRes = db->OpenEx(_T("DSN=MyData;UID=anon;PWD=pass"));
db->Close();
catch (CDBException* e)
e->Delete();
delete db;
db=NULL;
return 0;
delete db;
db=NULL;
The first sample code leaks a lot of memory and it can be easily observed from the task manager, the memory usage keeps on growing.
The second sample code does not leak any memory if i observe the memory usage from the task manager.
To find out the cause of the memory leak i ran the code through rational purify, both the codes are leaking memory according to rational purify. The first code leaks significantly more memory than the second one. The DLL pointed by rational purify are MFC
DLLs (inserting the screen shot below)
Is this a known issue with the MFC DLL or am i doing something wrong?
I have a server application where i have to create CDatabase object multiple times and i end up leaking a lot of memory over a period of time.
I can provide more information about this issue if required. Thanks in advance.I am trying to reproduce this issue on my side, but it seem there is no memory leak in my simple sample. I use _CrtDumpMemoryLeaks() to test the memory leak.
https://msdn.microsoft.com/en-us/library/d41t22sb.aspx
If I comment this line: db->Close();
I can detect the memory leak at CDatabase
*db =
new CDatabase;
See the screenshot.
If follow your sample code, there is memory leak message in the output view pane.
#define CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
#ifdef _DEBUG
#define new DEBUG_NEW
#endif.....int CMFCCdbMLTestApp::ExitInstance()
// TODO: Add your specialized code here and/or call the base class
_CrtDumpMemoryLeaks();
return CWinApp::ExitInstance();
May you can use some use tool like WinDbg tool to find more information about this issue.
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JDBC memory leak in 11.2.0.2.0 driver ?
Hi,
my customer on WLS 9.2.1 have just upgraded to new database and to a new JDBC Oracle 11.2.0.2.0 driver and it seems there is a memory leak. Based on heap dump it seem that leek i near oracle.jdbc.xa.OracleXAResource$XidListEntry. Admins are missing about 200MB on each server after 3 days.
Class Name | Objects | Shallow Heap | Retained Heap
oracle.jdbc.xa.OracleXAResource$XidListEntry| 2,378,575 | 57,085,800 | 171,257,016
Class Name | Objects | Shallow Heap | Retained Heap
weblogic.transaction.internal.XidImpl| 2,378,605 | 57,086,520 | 114,172,880
2,378,605 objects are really a lot :) and it about 114 MB of weblogic.transaction.internal.XidImpl objects
I found patch 8423655 but it is for older driver version. Does anybody have a similar experience? Any solution?
Thanks
PatrikAfter a discussion with support we have found patch for the problem:
Document Titleoracle.jdbc.xa.OracleXAResource$XidListEntry Objects Leaking in JDBC Driver for WebLogic Server (WLS) (Doc ID 872258.1)
You were right the problem was on Weblogic site and also on driver side. In last JDBC driver it is already fixed so we have to upgrade just WLS part.
Thanks
Patrik -
Memory leak in WebView with custom UserAgent
Hi,
When I use the method with using NavigateWithHttpRequestMessage to modify my UA, I cannot dispose my webview properly - there seems to be a memory leak when calling this.
In my code when I comment out the following line:
myWebView.NavigateWithHttpRequestMessage(httpRequest);
The memory leak goes away.
Please note this seems to be a WP8.1 issue only, the memory leak does not appear on Windows.
Is this a known issue? Is there a work around here?Hi Justin,
Could you share a reproducible sample with us for a test purpose?
What kind of other information include in your httpRequest, let's say if we exclude the UserAgent information, will the memory not release issue happens again, I'm not sure if the issue happens on setting UserAgent or on NavigateWithHttpRequestMessage
part.
--James
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Hi, I have an application (on Glassfish 2.1.1) that seems like has one memory leak. I took a heap dump and i found an object (of class org.apache.taglibs.standard.lang.jstl.ELEvaluator) that consumes almost 900 Mb. The memory is allocated by the static field sCachedExpressionStrings. Viewing the documentation of apache taglibs, I found that this field is marked as static, and seems that the GC cannot liberate the space.
I need help, because this problem is in production environment.
Someone knows if some configuration exists for resolve this problem?
Regardsuser5343236 wrote:
I'm not entirely sure what usage causes it, but the same thing happened to us. I had a website that suffered from a heap growing by nearly 100MB per hour due to this. Looking at the heap dump revealed millions of ELEvaluator char[]s taking up all the space.
This JSTL memory leak bug exists even in the glassfish.jstl_1.2.0.1.jar that is packaged with the current version of JDev (11.1.1.4.0). Note that the compile time on the classes inside the JAR are dated earlier than the posts on this bugzilla thread that actually talk about a fix: https://issues.apache.org/bugzilla/show_bug.cgi?id=31789
The fix they talk about is still relevant relevant to JSTl 1.2 even though the discussion is based on 1.0.6, because the ELEvaluator and related classes didn't change much if at all. You can download the source for it and fix the problem based on the 31789.patch attached to that bugzilla report. Hope this helps others that stumble into the problem.Okay, you seem to have put a decent amount of investigation time into this; well done. Perhaps a new bug report is in order then? Although it doesn't seem that the people at Apache put too much development time into their Java APIs anymore. -
Hi,
I have an app developed with AIR 3.7 for iOS (iPad)
The app gets very sluggish after a while, eventually crashes.
I've been -very- careful to pool objects where possible and cleanup / nullify all objects once they're not needed any more.
Profiling the app in Scout returns a pretty stable memory profile (the peaks and the lows translate very well to what's happening on screen)
Simultenously profiling the app using XCode's Instruments, shows me that the memory consumption off the app constantly rises up to the point the systems spends more time throwing memory warning than anything else.
Here are screenshots of both profilers: they show as3 memory usage being pretty stable, on the app level, memory keeps rising...
https://dl.dropboxusercontent.com/u/608333/AIR_memory_leak.zip
If AS3 is not leaking any memory (according to scout), but the app is (according to Instruments), would I be right assuming there's a memory leak in the AIR-runtime itself?
thanks for your feedback!
bart.ok, lots of trial and error has showed me the following:
There are two issues when loading assets using the Loader Class with its LoaderContext set to ImageDecodingPolicy.ON_LOAD.
These issues typically arise in a magazine-like app, where many images are loaded and unloaded continously.
Issue 1:
When initializing a load() on a Loader class with LoaderContext to ImageDecodingPolicy.ON_LOAD, all image decoding seems to be queued in a seperate thread. With several large images, especially on mobile devices, the time to crunch through a queue like this can easily go into dozens of seconds. During that time, some of the loaders can be unloaded, cleared, nulled and deleted. Yet, the loader isn't removed from the decoding queue.
In other words: once you fire the 'load' method on a Loader instance, you're not able to cancel the decompression process, even though the decompression might not even have started yet, as queued by other decompressions.
Issue 2:
When a Loader instance is unloaded, cleared, nulled and deleted while its decompression is still queued and not yet fully decompressed, there seems to be a memory leak. With several dozens of images loading and interupting the loading, you'll notice a difference in memory consumtion when comparing memory output in Scout and in Instruments. Both memory graphs build up very similar yet after the runtime's garbarge collection kicks in, the memory graph in Instruments seems to not release memory fully. Consumption gradually rises until the app eventually crashes.
https://dl.dropboxusercontent.com/u/608333/AIRMemoryLeakExample.zip
This example app allows you to create loaders in bursts by touching the screen.
You'll instantly see the massive waiting times for decompression, despite the fact there's only a few Loader instances in memory at the same time. After several short bursts and wait-a-bit-for-decompression-to-catch-up, you should also notice the difference in memory profiling between Scout and Instruments.
I managed to work around both issues by making a LoaderQueueManager class.
This class instantiates and returns a Loader instance, queues these instances and tracks its onComplete handler. Only when one loader is finished loading, the next loader starts loading. This way, you never have different instances trying to simulataneously decompress their content. As such decompressions are never interrupted and loaders can also be de-queued. This practically speeds up decompression dramatically, since images that are removed won't get decompressed in vain. Memory Leaks also don't occur, since not a single decompression is ever interupted.
This solution only works with content loaded locally.
Hope you can get somewhere with this,
and hopefully, you find a fix in one of the next AIR releases.
best,
bart.
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