Thread Count Queue Length in Negative and Too many standby Thread
We are using Weblogic server 9.2.2 with 1 admin server and 4 managed server . Currently in one of the servers I could observe that there are around 77 standby threads.
Home > Summary of Servers > server1 > Monitoring > Threads > Self-Tuning Thread Pool
I could see that the "queue length" is negative (-138) and self tuning standby thread count is 77. Large number of threads STANDBY thread persists during the busy time of the business hours where as other servers are fully utilized.
Is it normal to have negative queue length and so many STANDBY threads? As for JMS queue negative oracle had already acknowledged that it is a bug. Thanks.
Edited by: 855849 on May 1, 2011 7:19 AM
Edited by: SilverHawk on May 12, 2011 8:12 AM
Yesterday an Oracle Consultant acknowlegded that it is a bug. There was a patch issued for Negative count in the JMS queue count and now this. Thanks for the reply by the way.
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Ogan -
Slow execution, flickering graphics, and too many threads, oh my!
i wrote a little game called Aim, Fire! just to screw around.
its immense complexity involves shooting little targets that fly across the screen.
you can see it at http://www.brianmaissy.com/applets/aimfire
i made a class representing a target that paints itself and is its own thread.
its kinda nifty in a OOP sort of way: all i have to do is instantiate a target; and it takes care of the rest, notifying the driver program of anything important (like it getting shot)
the problem, however, is the speed changes significantly depending on how many targets are active, and the graphics are very flickery.
i think the problem may be that having multiple threads is slow.
i also tried buffering my graphics but it didnt work very well.
however that may just be because i did it wrong.
in fact i probably did a lot of things wrong - please notify me of anything you see that i did badly
so tell me what you think about the design of the program, and any suggestions you have to restructure it. would i do better just to stick everything in one thread, or even all in one class?
thanks very much!
here is the code: (also found at http://www.brianmaissy.com/applets/aimfire/aimFire/AimFire.java and http://www.brianmaissy.com/applets/aimfire/aimFire/Target.java)
package aimFire;
import java.applet.Applet;
import java.awt.Color;
import java.awt.Event;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Point;
import java.util.ArrayList;
import java.util.Random;
public class AimFire extends Applet{
public static final int SPEED_CONSTANT = 500;
public static final int MIN_X = 0;
public static final int MIN_Y = 21;
public static final int MAX_X = 399;
public static final int MAX_Y = 399;
Image ammoImage;
private Random rand;
private static final int CLIP = 10;
private static final int TOTAL_TARGETS = 20;
private int toBeAdded;
private ArrayList<Target> targets;
private int targetsKilled;
private int ammo;
private int score;
private boolean gameActive;
public void init(){
setSize(400, 400);
setBackground(Color.black);
setCursor(getToolkit().createCustomCursor(getImage(this.getClass().getResource("crosshair.gif")), new Point(16, 16), "crosshair"));
ammoImage = getImage(this.getClass().getResource("ammo.gif"));
rand = new Random();
ammo = CLIP;
score = 0;
gameActive = true;
targetsKilled = 0;
toBeAdded = TOTAL_TARGETS;
targets = new ArrayList<Target>();
sendRandom();
sendRandom();
public boolean mouseDown(Event e, int x, int y){
if(gameActive && ammo > 0){
ammo--;
for(int count = 0; count < targets.size(); count++){
score += targets.get(count).hit(x, y);
repaint();
return true;
public boolean keyDown(Event e, int key){
if((char)key == ' ' && gameActive){
ammo = CLIP;
repaint();
return true;
private void sendRandom(){
toBeAdded--;
Target t = new Target(this, getGraphics(), rand);
targets.add(t);
new Thread(t).start();
repaint();
public void notifyOfDeath(Target t){
targetsKilled++;
targets.remove(t);
if(toBeAdded > 0){
sendRandom();
if(targets.size()==0){
gameActive = false;
repaint();
public void paint(Graphics g){
g.setColor(Color.gray);
g.drawLine(0, 20, 399, 20);
for(int count = 0; count < ammo; count++){
g.drawImage(ammoImage, count*10 + 3, 3, this);
if(ammo == 0){
g.drawString("press space to reload", 3, 13);
g.drawString("Targets: " + targetsKilled + "/" + TOTAL_TARGETS, 230, 13);
g.drawString("Score: " + score, 340, 13);
if(!gameActive){
g.setColor(Color.gray);
g.drawString("Game Over", 170, 200);
g.drawString("Score: " + score, 170, 230);
package aimFire;
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;
public class Target implements Runnable{
private AimFire a;
private Graphics g;
private int radius;
private int xLocation;
private int yLocation;
private int xDirection;
private int yDirection;
private int xSpeed;
private int ySpeed;
public Target(AimFire driver, Graphics graphics, Random rand){
this(driver, graphics, 3*(rand.nextInt(9)+ 2), rand.nextInt(1 + AimFire.MAX_X - 60) + 30 + AimFire.MIN_X, rand.nextInt(1 + AimFire.MAX_Y - 60 - AimFire.MIN_Y) + 30 + AimFire.MIN_Y, rand.nextInt(3)-1, rand.nextInt(3)-1, rand.nextInt(5)+1, rand.nextInt(5)+1);
if(xDirection == 0 && yDirection == 0){
if(rand.nextInt(2)==0){
if(rand.nextInt(2)==0){
xDirection = 1;
}else{
xDirection = -1;
}else{
if(rand.nextInt(2)==0){
yDirection = 1;
}else{
yDirection = -1;
public Target(AimFire driver, Graphics graphics, int r, int x, int y, int xDir, int yDir, int xSp, int ySp){
a = driver;
g = graphics;
radius = r;
xLocation = x;
yLocation = y;
xDirection = xDir;
yDirection = yDir;
xSpeed = xSp;
ySpeed = ySp;
public void run() {
if(g!=null){
paint();
int count = 1;
while(xLocation >= AimFire.MIN_X && xLocation <= AimFire.MAX_X && yLocation >= AimFire.MIN_Y && yLocation <= AimFire.MAX_Y){
unpaint();
if(count % (AimFire.SPEED_CONSTANT/xSpeed) == 0){
xLocation += xDirection;
if(count % (AimFire.SPEED_CONSTANT/ySpeed) == 0){
yLocation += yDirection;
paint();
count++;
unpaint();
a.notifyOfDeath(this);
public int hit(int x, int y){
if(Math.abs(x - xLocation) < radius/3 && Math.abs(y - yLocation) < radius/3){
xLocation = -99;
return 3;
}else if(Math.abs(x - xLocation) < 2*radius/3 && Math.abs(y - yLocation) < 2*radius/3){
xLocation = -99;
return 2;
}else if(Math.abs(x - xLocation) < radius && Math.abs(y - yLocation) < radius){
xLocation = -99;
return 1;
}else{
return 0;
private void paint(){
g.setColor(Color.red);
g.fillOval(xLocation-radius, yLocation-radius, 2*radius, 2*radius);
g.setColor(Color.white);
g.fillOval(xLocation-2*radius/3, yLocation-2*radius/3, 4*radius/3, 4*radius/3);
g.setColor(Color.red);
g.fillOval(xLocation-radius/3, yLocation-radius/3, 2*radius/3, 2*radius/3);
private void unpaint(){
g.setColor(Color.black);
g.fillOval(xLocation-radius, yLocation-radius, 2*radius, 2*radius);
}i wrote a little game called Aim, Fire! just to screw around.
its immense complexity involves shooting little targets that fly across the screen.
you can see it at http://www.brianmaissy.com/applets/aimfire
i made a class representing a target that paints itself and is its own thread.
its kinda nifty in a OOP sort of way: all i have to do is instantiate a target; and it takes care of the rest, notifying the driver program of anything important (like it getting shot)
the problem, however, is the speed changes significantly depending on how many targets are active, and the graphics are very flickery.
i think the problem may be that having multiple threads is slow.
i also tried buffering my graphics but it didnt work very well.
however that may just be because i did it wrong.
in fact i probably did a lot of things wrong - please notify me of anything you see that i did badly
so tell me what you think about the design of the program, and any suggestions you have to restructure it. would i do better just to stick everything in one thread, or even all in one class?
thanks very much!
here is the code: (also found at http://www.brianmaissy.com/applets/aimfire/aimFire/AimFire.java and http://www.brianmaissy.com/applets/aimfire/aimFire/Target.java)
package aimFire;
import java.applet.Applet;
import java.awt.Color;
import java.awt.Event;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Point;
import java.util.ArrayList;
import java.util.Random;
public class AimFire extends Applet{
public static final int SPEED_CONSTANT = 500;
public static final int MIN_X = 0;
public static final int MIN_Y = 21;
public static final int MAX_X = 399;
public static final int MAX_Y = 399;
Image ammoImage;
private Random rand;
private static final int CLIP = 10;
private static final int TOTAL_TARGETS = 20;
private int toBeAdded;
private ArrayList<Target> targets;
private int targetsKilled;
private int ammo;
private int score;
private boolean gameActive;
public void init(){
setSize(400, 400);
setBackground(Color.black);
setCursor(getToolkit().createCustomCursor(getImage(this.getClass().getResource("crosshair.gif")), new Point(16, 16), "crosshair"));
ammoImage = getImage(this.getClass().getResource("ammo.gif"));
rand = new Random();
ammo = CLIP;
score = 0;
gameActive = true;
targetsKilled = 0;
toBeAdded = TOTAL_TARGETS;
targets = new ArrayList<Target>();
sendRandom();
sendRandom();
public boolean mouseDown(Event e, int x, int y){
if(gameActive && ammo > 0){
ammo--;
for(int count = 0; count < targets.size(); count++){
score += targets.get(count).hit(x, y);
repaint();
return true;
public boolean keyDown(Event e, int key){
if((char)key == ' ' && gameActive){
ammo = CLIP;
repaint();
return true;
private void sendRandom(){
toBeAdded--;
Target t = new Target(this, getGraphics(), rand);
targets.add(t);
new Thread(t).start();
repaint();
public void notifyOfDeath(Target t){
targetsKilled++;
targets.remove(t);
if(toBeAdded > 0){
sendRandom();
if(targets.size()==0){
gameActive = false;
repaint();
public void paint(Graphics g){
g.setColor(Color.gray);
g.drawLine(0, 20, 399, 20);
for(int count = 0; count < ammo; count++){
g.drawImage(ammoImage, count*10 + 3, 3, this);
if(ammo == 0){
g.drawString("press space to reload", 3, 13);
g.drawString("Targets: " + targetsKilled + "/" + TOTAL_TARGETS, 230, 13);
g.drawString("Score: " + score, 340, 13);
if(!gameActive){
g.setColor(Color.gray);
g.drawString("Game Over", 170, 200);
g.drawString("Score: " + score, 170, 230);
package aimFire;
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;
public class Target implements Runnable{
private AimFire a;
private Graphics g;
private int radius;
private int xLocation;
private int yLocation;
private int xDirection;
private int yDirection;
private int xSpeed;
private int ySpeed;
public Target(AimFire driver, Graphics graphics, Random rand){
this(driver, graphics, 3*(rand.nextInt(9)+ 2), rand.nextInt(1 + AimFire.MAX_X - 60) + 30 + AimFire.MIN_X, rand.nextInt(1 + AimFire.MAX_Y - 60 - AimFire.MIN_Y) + 30 + AimFire.MIN_Y, rand.nextInt(3)-1, rand.nextInt(3)-1, rand.nextInt(5)+1, rand.nextInt(5)+1);
if(xDirection == 0 && yDirection == 0){
if(rand.nextInt(2)==0){
if(rand.nextInt(2)==0){
xDirection = 1;
}else{
xDirection = -1;
}else{
if(rand.nextInt(2)==0){
yDirection = 1;
}else{
yDirection = -1;
public Target(AimFire driver, Graphics graphics, int r, int x, int y, int xDir, int yDir, int xSp, int ySp){
a = driver;
g = graphics;
radius = r;
xLocation = x;
yLocation = y;
xDirection = xDir;
yDirection = yDir;
xSpeed = xSp;
ySpeed = ySp;
public void run() {
if(g!=null){
paint();
int count = 1;
while(xLocation >= AimFire.MIN_X && xLocation <= AimFire.MAX_X && yLocation >= AimFire.MIN_Y && yLocation <= AimFire.MAX_Y){
unpaint();
if(count % (AimFire.SPEED_CONSTANT/xSpeed) == 0){
xLocation += xDirection;
if(count % (AimFire.SPEED_CONSTANT/ySpeed) == 0){
yLocation += yDirection;
paint();
count++;
unpaint();
a.notifyOfDeath(this);
public int hit(int x, int y){
if(Math.abs(x - xLocation) < radius/3 && Math.abs(y - yLocation) < radius/3){
xLocation = -99;
return 3;
}else if(Math.abs(x - xLocation) < 2*radius/3 && Math.abs(y - yLocation) < 2*radius/3){
xLocation = -99;
return 2;
}else if(Math.abs(x - xLocation) < radius && Math.abs(y - yLocation) < radius){
xLocation = -99;
return 1;
}else{
return 0;
private void paint(){
g.setColor(Color.red);
g.fillOval(xLocation-radius, yLocation-radius, 2*radius, 2*radius);
g.setColor(Color.white);
g.fillOval(xLocation-2*radius/3, yLocation-2*radius/3, 4*radius/3, 4*radius/3);
g.setColor(Color.red);
g.fillOval(xLocation-radius/3, yLocation-radius/3, 2*radius/3, 2*radius/3);
private void unpaint(){
g.setColor(Color.black);
g.fillOval(xLocation-radius, yLocation-radius, 2*radius, 2*radius);
} -
Music playlist shows wrong cover and too many songs
On my iPhone 4s, I just did the upgrade to iOS 7 (I did a fresh install to be sure) and I am using iTunes 11.1
So now my playlist in the Music app is messed up.
In iTunes, I have both: just normal playlists and playlist-folders (which themselves have playlists)
e.g. A Folder is called "The Alan Parsons Project" and underneath there are the playlists ("I Robot", "On Air", ...)
The problem is with this playlist folders:
On the iPhone, the Music app shows me the right folder name, but it shows me a wrong cover. The same wrong cover for each playlist-folder!
The playlists themselves appear with the right cover
Any other music app (Track 8, CarTunes), that ist able to show the number of songs, shows me the folder names, each containing all my songs!
Normal playlists are shown correctly.
Any suggestions?Thank you! This was driving me crazy. I had this issue when I initially installed iOS 7. At that time I removed all my music and resynced, and then the correct art displayed. I recently had to restore my iPhone and resync, and the bug of wrong art for playlist folders came back. (Strangely, it consistently displayed the same wrong art and displayed the same wrong art as when it happened before.) I kept removing and resyncing my playlists and deleting the iTunes album art cache to no avail. The fix of renaming the folders worked!
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Duplicates and too many formats in iTunes library
How do I clean up my iTunes library? I have duplicates of every song now in both AAC and MPEG formats in there. I would like to delete the duplicates and all the mpeg songs leaving only the AAC songs in my library to sync with my Nano. THANKS
Robert Jacobson has a script for removing duplicates here:
http://home.comcast.net/~teridon73/itunesscripts/
As for removing MPEG files, have you discovered the "kind" column. If you go to View>>View options, there is a check box to display it.
You could either sort on the kind field or create a smart playlist where Kind is the format you want to delete.
This will group files of the same type together, but you would have to delete them yourself. -
I have created a site using iWeb on my MacAir with the assets uploaded to an FTP server through e-noise. I now have a iMac and would like to make changes on the machine, but every time I open iWeb it only allows me to start a new site. I'd like to be able to make changes on my iMac (at home) and on the road (MacAir). Can anyone advise me on how I might go about this please.
Many thanks
KieronI use dropbox. I love it. It's free for up to 2GB of capacity. I'm editing my site from three different computers. It eliminates any confusion regarding which file was the last one edited, which machine it's on, etc. I keep my domain file in dropbox and keep an alias in the left sidebar of the finder window. So all I have to do to edit my site is double click the domain file alias in any finder window, no matter what computer I'm working on. The dropbox website also keeps backups of your files so in case you ever lose your work, you can retrieve a back up from DropBox.com.
One thing you need to be careful about is to not edit your file from two different computers at the same time, The file can become corrupted if you do this.
David -
UserTransaction and too many connections
This might sound a bit weird. I am just looking for some quick pointers here if possible. The OC4J version in use is 9.0.4.0.0. I am doing something along the following lines in a struts action class.
1) UserTransaction txn = ctx.lookup("java:comp/UserTransaction");
2) Connection conn = dataSource.getConnection();
3) txn.begin();
4) ..StatelessSessionBean call which uses a few entity beans (Bean Managed)
5) Direct updates using conn (no commits in this).
6) txn.commit
My issue is with step 4 above. It does some updates and this results in close to 500 plus physical db connections getting created when in UserTransaction. The beans are normal usual beans and the whole process works without issues if I get rid of UserTransaction with less than 50 physical connections.
I am just not able to pinpoint what exactly might be going wrong in the beans that such a large number of connections get created when in UserTransaction.
The datasource is along these lines
<data-source
class="com.evermind.sql.DriverManagerDataSource"
name="xxxDB"
location="jdbc/xxxDBCore"
pooled-location="jdbc/xxxDBCore_non_tx"
xa-location="jdbc/xa/xxxDBXA"
ejb-location="jdbc/xxxDB"
connection-driver="oracle.jdbc.driver.OracleDriver"
username="xxxxxxxx"
password="xxxxxxxx"
url="jdbc:oracle:thin:@1.2.3.4:1521:xxx"
min-connections="10"
/>
I check for the number of physical connections using the oc4j option
-Ddatasource.verbose=true which prints out the information.
If I set the max-connections attribute on the datasource, I get a Timeout waiting for connection exception in the app.
If any of this rings a bell and if you have any thoughts or suggestions, I would really appreciate it.
Thanks in advance
best regards
-SudhirJust to add to my above post, the messages on the cnsole are along the lines of ...
null: Connection com.evermind.sql.DriverManagerXAConnection@189c9fe allocated (Pool size: 0)
Created new physical connection: com.evermind.sql.DriverManagerXAConnection@12c820f
null: Connection com.evermind.sql.DriverManagerXAConnection@12c820f allocated (Pool size: 0)
Created new physical connection: com.evermind.sql.DriverManagerXAConnection@10eb09e
null: Connection com.evermind.sql.DriverManagerXAConnection@10eb09e allocated (Pool size: 0)
Created new physical connection: com.evermind.sql.DriverManagerXAConnection@16d7d9e
null: Connection com.evermind.sql.DriverManagerXAConnection@16d7d9e allocated (Pool size: 0)
Created new physical connection: com.evermind.sql.DriverManagerXAConnection@e3f9e3
null: Connection com.evermind.sql.DriverManagerXAConnection@e3f9e3 allocated (Pool size: 0)
Created new physical connection: com.evermind.sql.DriverManagerXAConnection@10382ca
null: Connection com.evermind.sql.DriverManagerXAConnection@10382ca allocated (Pool size: 0)
Created new physical connection: com.evermind.sql.DriverManagerXAConnection@17faec2
Why would the pool size be 0? -
have an 8g ipod touch which has had problems trying to play games and downloading update 4.2.1. went to the apple store who kindly downloaded the software update but now can't synch and generates multiple error messages; device times out, internal device error, network times out, duplicate file and too many files open etc etc. have latest i tunes download and diagnostic test ok. what can i do?
Does the ext directory have the php_oci8.dll? In the original steps the PHP dir is renamed. In the given php.in the extension_dir looks like it has been updated correctly. Since PHP distributes php_oci8.dll by default I reckon there would be a very good chance that the problem was somewhere else. Since this is an old thread I don't think we'll get much value from speculation.
-- cj -
Too many files open when parsing xml
HI,
I have an application which needs to parse about 13 XML files multiple times.After parsing the XML and creating a DOM I put in values to create an XML message which is then put onto a message queue.I am getting a 'Too many files open' problem.I have run the loop a maximum of 105 times after which i get the problem.However I will need to do this atleast more than 10000 times.Can someone suggest a solution to read the XML, create a DOM and populate the DOM without encountering the above mentioned problem.If I just parse the XML and store the 13 DOMs in a HashMap and use the same, the text values from the previous call get appended resulting in an invalid XML.To overcome this we parse the XML each time a message is to be sent.We also tried increasing the system memory as suggested at some sites but the solution was of no help.
Thanks & RegardsDon't know what this has to do with Web Start but you should make sure that, after parsing a file, the corresponding InputStream is properly closed.
-
JBO-25013: Too many objects match the primary key oracle.jbo.key error
I have implemented dependant dropdown in ADF.
My page contains two dropdowns First one is independant and values in the second one is populated depending on the value chosen in the first one.
I have used simple selecy query in my view objects and one entity object.
but while running the page i am getting the error JBO-25013: Too many objects match the primary key oracle.jbo.key
please help me with how to debug the error.Hi,
Basically that error means exactly what it says. The primary key of your parent VO isn't unique and too many items in the parent VO have the same primary key.
Post the sql here for your two VO's, and let us know what the primary key is.
Are you using setCurrentRowWithKeyValue as the VO method to set the current row, or are you using setCurrentRowWithKey?
-Chris -
Hi
I am getting two different outputs with following code depending upon i declare the variable in first or second way...
when i declare the variable v_empno as number(10) and too many rows exception is raised....and after that i dbms this variable..it is null...
but when i declare the same variable as table.column%type....and the similar scenario happens and i dbms the value of variable...it is not null...rather the first value from output of the query...
declare
--v_empno number(10);
v_empno emp.empno%type;
begin
dbms_output.put_line('before '||v_empno );
select empno into v_empno from emp;
dbms_output.put_line('first '||v_empno);
exception when too_many_rows then
dbms_output.put_line('second '||v_empno);
dbms_output.put_line('exception'||sqlerrm);
end;
is there any specific reason for this....
ur comments plz
Thanks
SidhuIn 9i:
SQL> declare
2 --v_empno number(10);
3 v_empno emp.empno%type;
4 begin
5 dbms_output.put_line('before '||v_empno );
6 select empno into v_empno from emp;
7 dbms_output.put_line('first '||v_empno);
8 exception when too_many_rows then
9 dbms_output.put_line('second '||v_empno);
10 dbms_output.put_line('exception'||sqlerrm);
11 end;
12 /
before
second 7369
exceptionORA-01422: exact fetch returns more than requested number of rows
PL/SQL procedure successfully completed.
SQL> declare
2 v_empno number;
3 --v_empno emp.empno%type;
4 begin
5 dbms_output.put_line('before '||v_empno );
6 select empno into v_empno from emp;
7 dbms_output.put_line('first '||v_empno);
8 exception when too_many_rows then
9 dbms_output.put_line('second '||v_empno);
10 dbms_output.put_line('exception'||sqlerrm);
11 end;
12 /
before
second
exceptionORA-01422: exact fetch returns more than requested number of rows
PL/SQL procedure successfully completed.
SQL> edit
Wrote file afiedt.buf
1 declare
2 v_empno number(10);
3 --v_empno emp.empno%type;
4 begin
5 dbms_output.put_line('before '||v_empno );
6 select empno into v_empno from emp;
7 dbms_output.put_line('first '||v_empno);
8 exception when too_many_rows then
9 dbms_output.put_line('second '||v_empno);
10 dbms_output.put_line('exception'||sqlerrm);
11* end;
SQL> /
before
second 7369
exceptionORA-01422: exact fetch returns more than requested number of rows
PL/SQL procedure successfully completed.In 10G:
SQL> declare
2 v_empno number(10);
3 --v_empno emp.empno%type;
4 begin
5 dbms_output.put_line('before '||v_empno );
6 select empno into v_empno from emp;
7 dbms_output.put_line('first '||v_empno);
8 exception when too_many_rows then
9 dbms_output.put_line('second '||v_empno);
10 dbms_output.put_line('exception'||sqlerrm);
11 end;
12 /
before
second 7369
exceptionORA-01422: exact fetch returns more than requested number of rows
PL/SQL procedure successfully completed.
SQL> edit
Wrote file afiedt.buf
1 declare
2 v_empno number;
3 --v_empno emp.empno%type;
4 begin
5 dbms_output.put_line('before '||v_empno );
6 select empno into v_empno from emp;
7 dbms_output.put_line('first '||v_empno);
8 exception when too_many_rows then
9 dbms_output.put_line('second '||v_empno);
10 dbms_output.put_line('exception'||sqlerrm);
11* end;
SQL> /
before
second 7369
exceptionORA-01422: exact fetch returns more than requested number of rows
PL/SQL procedure successfully completed.
SQL> edit
Wrote file afiedt.buf
1 declare
2 --v_empno number;
3 v_empno emp.empno%type;
4 begin
5 dbms_output.put_line('before '||v_empno );
6 select empno into v_empno from emp;
7 dbms_output.put_line('first '||v_empno);
8 exception when too_many_rows then
9 dbms_output.put_line('second '||v_empno);
10 dbms_output.put_line('exception'||sqlerrm);
11* end;
SQL> /
before
second 7369
exceptionORA-01422: exact fetch returns more than requested number of rows
PL/SQL procedure successfully completed.Anyhow you should not rely on the fact Oracle fetches the first value into variable
and keeps it when the excaprion is raised.
Tom Kyte discusses the SELECT INTO issue here:
http://asktom.oracle.com/pls/ask/f?p=4950:8:7849913143702726938::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:1205168148688
Rgds. -
SMTP Error 452 Too many recipients
We are using Exchange 2007 at a school to send email to parents. When we send out email to all parents we get an error back from yahoo: 452 Too many recipients.
We have 34 recipients on the list.
Is there a way to configure Exchange SMTP outbound to break this up so it only sends to say 10 at a time?
Thanks,
GlennHere's more info on the problem after looking at the logs a bit more.
When we send to yahoo with 34 recipients, the first recipient is accepted and all the rest are rejected as 'too many recipients'. Exchange then tries again with the remaining users and one more email is accepted. In our case it does this three times and then hits a case where the first
yahoo email address is a bad address. Yahoo comes back with an error for this address and 'too many recipients' for all the others. It then gives up and does not try to send the remaining addresses.
Being able to control the max number of recipients per smtp session would be one fix to this problem as I could set it to something like 10 so that even if one recipient is rejected, the others would not also get rejected as having 'too many recipients'.
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