Question about Error Statistics

Hello,
Just want to ask question, what cause of Recieve Ignored packets and Throttles in Cisco Aironet 1310G with System Software Version:12.4(21a)JA, it increments the number very fast.
Thanks you

Wireless transmission acts similar to a wired hub. One talks and everyone listens. Wireless static errors can easily be attributed to retransmissions caused by the clients either too far away or too close (shadow). Transmission errors also happens when there are just too many clients that associate to a specific AP.

Similar Messages

Answer to question about "Error Occurring when convertion is tried for PDF to Word Document"

There are about ten questions about the "Error Occurring" when using Abode Reader XLto convert a PDF to a Word Doc, but no one has the answer? It has something to do with "signing in the wrong address". I have been working on this three days Now! Soimeone has the answer? Cataloochee

You must be kidding to say, "Adobe doesn't convert any version of Adobe Reader."' I must be in another world! When i move an Adobe Reader file pdf that goes to a wIndow that the top line says,'' Adobe reader X1 1001 Early Dutch History. pdf ". Then i click on the far left yellow marked icon that is used to move 1001 Early Dutch History.pdf to thye far right into a gray colored slot that reads "1001 Early Dutch History.pdf'. Under the file above or down below, the selected File for conversionis, a selection gray slot that ask if you want to convert this file(pdf) to a .docx.,.doc, tex. or Excell. After I make the selection and click onto Convert, a message comes into view where the word convert was that reads "An Error Occurred wilth Signing In OK" Even the use of another pdf file with a complete different address produces the same message. There are eight chapters in Dutch that I need to convert to word document by tommorrow or the class i teach "the Origin of Golf" will have to listen in Dutch and I can't speak Dutch. Cataloochee

Questions about errors

These are my latest HH3a stats after a DLM resynch - part of an ongoing battle with it over the SNR
Connection Information
Line state:
Connected
Connection time:
2 days, 03:05:42
Downstream:
6.711 Mbps
Upstream:
888.9 Kbps
ADSL Settings
VPI/VCI:
0/38
Type:
PPPoA
Modulation:
G.992.5 Annex A
Latency type:
Interleaved
Noise margin (Down/Up):
5.1 dB / 8.3 dB
Line attenuation (Down/Up):
44.1 dB / 26.0 dB
Output power (Down/Up):
20.0 dBm / 12.6 dBm
FEC Events (Down/Up):
324989772 / 315
CRC Events (Down/Up):
761667 / 0
Loss of Framing (Local/Remote):
0 / 0
Loss of Signal (Local/Remote):
0 / 0
Loss of Power (Local/Remote):
0 / 0
HEC Events (Down/Up):
7393116 / 2
Error Seconds (Local/Remote):
31313 / 1
IP is 6.06 and speed 5.92.
The errors an hour after the resynch were CRC 702269 HEC 6925930 Secs 28828
What I want to know/understand is why the errors were so high after the resynch and why am I currently still able to get the speed I can as in the past errors less than half the total shown have completely throttled the line.
FYI this is a follow on from this thread http://community.bt.com/t5/BB-Speed-Connection-Issues/Low-Noise-high-errors-again/td-p/734960
Solved!
Go to Solution.

It's not an easy question to answer ... but this may give you an insight.
Sync is acheived by the msan sending a series of tones down the line to the modem, and according to the acknowledgements, the modulation standard is set. The loop loss is measured electronically and according to same, the amount of SNR (not SNRm) is used to set power factors so that the dslam can transmit the databits over the frequencies for the tones that were accepted. Some tones and thus frequencies will have been lost, as the line can't sustain them, because of either outside influences or mere line length. Once the SNR and power is set, the dslam will apply a buffer which is normally target margin (6db) (can be 3db on DSL2 running a special algo at the msan control).
Once all these parameters are set the line will attempt to transmit data putting analog information into digital virtual buckets to transmit down the wire.
If any of the databits are destroyed in total, or the majority of the packet is useless, a cyclic checksum will command a resend of that packet. If the packets are fairly good, and transmittable, they will go but will be checked and error corrected by a soft block code algorithm using RS codewords to fix the packet, these don;t get resent merely fixed.
If the line is having a bad day, the errors may rack up and quickly, so the modem has the capability to drop the connection if it sees multiple second counts whereby the entire payload was corrupted, but it won't do it until a threshold (count) is breached.
Lines change all the time, and at different times of day, as for example impulse noise increases at night owing to external influences, street lamp radiation, radio frequencies etc. and this is normally absorbed by the margin of the SNR, or put another way the noise margin. If databit transmission becomes difficult the MSAN control can increase the margin to enable the linedata to be "heard"... at the cost of linespeed.
To get back to your original point about error rates .... if your line sees high CRC checks (and resends) high HECS , header corrections ... it will absorb high levels of bandwidth and reduced throughput will ensue.
With FEC high figures simply shows interleave and block error correction is working, and it is demonstrating the rate of bits that are acknowledged as repaired. All lines will see some, and some more than others. The better the line and quality of the path, the less errors will be seen.
The DSL also has a further trick up its sleeve. If certain frequencies can't be used when negotiation takes place, it has the ability to swap databits from one virtual bucket to another bit-free part of the spectrum, that isn't being utilised for transmission, and in doing so maintains the throughput without wasting any bandwidth. That's bitswapping and is used frequently on longer, or errornous lines where "normal" databit transmission is difficult.
To put all this into perspective .... if your line starts to crackle .... high counts of errored seconds will be seen, and cyclic checking will go up, along with packet header correction. And as all this takes up overhead, throughput and data transfer depletes until the modem drops the connection.
On regaining a new re-negotiated connection, the dslam may according to line history and the "fault" that caused linedrop .... impose a higher level of interleave, via the DLM line algorithm. It can also reduce sync like it does at night, in order to negotiate a connection that is sustainable.
Crackle is probably the worst case scenario, as eventually the connection is bound to drop. But even high levels of impulse noise can destroy data packets, so if you have say poor extension wiring that absorbs REIN it will do the same, cut back the throughput.
Hope this helps.

A question about error with jasperserver for pdf and Apex

I have created a pdf report on jasperserver and I can call it from apex via a url and it displays fine. The url is this format {http://server:port/jasperserver/flow.html?_flowId=viewReportFlow&reportUnit=/reports/Apex/deptemp&output=pdf&deptNo=#DEPTNO#&j_username=un&j_password=pw}
However, I am trying to follow a stored procedure executed from Apex so it would not expose the username/pwd in the url like above.
If I am reading the apache error log correctly it is erroring in this piece of the code below where it executes {Dbms_Lob.writeAppend}
loop
begin
-- read the next chunk of binary data
Utl_Http.read_raw(vResponse, vData);
-- append it to our blob for the pdf file
Dbms_Lob.writeAppend
( lob_loc => vBlobRef
, amount => Utl_Raw.length(vData)
, buffer => vData
exception when utl_http.end_of_body then
exit; -- exit loop
end;
end loop;
Utl_Http.end_response(vResponse);}
The error log says this; HTTP-500 ORA-14453: attempt to use a LOB of a temporary table, whose data has alreadybeen purged\n
What is this error telling me and how can I correct it?
The stored procedure I am following is below but replaced the vReportURL with my url like above that works.
Thank you,
Mark
{CREATE OR REPLACE procedure runJasperReport(i_deptno   in varchar2)
is
vReportURL       varchar2(255);
vBlobRef         blob;
vRequest         Utl_Http.req;
vResponse        Utl_Http.resp;
vData            raw(32767);
begin
-- build URL to call the report
vReportURL := 'http://host:port/jasperserver/flow.html?_flowId=viewReportFlow'||
     '&reportUnit=/reports/Apex/deptemp'||
     '&output=pdf'||
     '&j_username=un&j_password=pw'||
     '&deptNo='||i_deptno;
-- get the blob reference
insert into demo_pdf (pdf_report)
values( empty_blob() )
returning pdf_report into vBlobRef;
-- Get the pdf file from JasperServer by simulating a report call from the browser
vRequest := Utl_Http.begin_request(vReportUrl);
Utl_Http.set_header(vRequest, 'User-Agent', 'Mozilla/4.0');
vResponse := Utl_Http.get_response(vRequest);
loop
begin
-- read the next chunk of binary data
Utl_Http.read_raw(vResponse, vData);
-- append it to our blob for the pdf file
Dbms_Lob.writeAppend
( lob_loc => vBlobRef
, amount => Utl_Raw.length(vData)
, buffer => vData
exception when utl_http.end_of_body then
exit; -- exit loop
end;
end loop;
Utl_Http.end_response(vResponse);
owa_util.mime_header('application/pdf',false);
htp.p('Content-length: ' || dbms_lob.getlength(vBlobRef));
owa_util.http_header_close;
wpg_docload.download_file(vBlobRef);
end runJasperReport;
/}

I am new to working with working with jasperserver to apex interfacing, and also using utl_http with binary data.
But I guess typing my question down helped me figure out a way to make it work for me.
I combined info from http://www.oracle-base.com/articles/misc/RetrievingHTMLandBinariesIntoTablesOverHTTP.php
and from http://sqlcur.blogspot.com/2009_02_01_archive.html
to come up with this procedure.
{create or replace PROCEDURE download_file (p_url IN VARCHAR2) AS
l_http_request   UTL_HTTP.req;
l_http_response UTL_HTTP.resp;
l_blob           BLOB;
l_raw            RAW(32767);
BEGIN
-- Initialize the BLOB.
DBMS_LOB.createtemporary(l_blob, FALSE);
-- Make a HTTP request, like a browser had called it, and get the response
l_http_request := UTL_HTTP.begin_request(p_url);
Utl_Http.set_header(l_http_request, 'User-Agent', 'Mozilla/4.0');
l_http_response := UTL_HTTP.get_response(l_http_request);
-- Copy the response into the BLOB.
BEGIN
    LOOP
      UTL_HTTP.read_raw(l_http_response, l_raw, 32767);
      DBMS_LOB.writeappend (l_blob, UTL_RAW.length(l_raw), l_raw);
    END LOOP;
EXCEPTION
    WHEN UTL_HTTP.end_of_body THEN
      UTL_HTTP.end_response(l_http_response);
END;
-- make it display in apex
owa_util.mime_header('application/pdf',false);
htp.p('Content-length: ' || dbms_lob.getlength(l_blob));
owa_util.http_header_close;
wpg_docload.download_file(l_blob);
-- Release the resources associated with the temporary LOB.
DBMS_LOB.freetemporary(l_blob);
EXCEPTION
WHEN OTHERS THEN
    UTL_HTTP.end_response(l_http_response);
    DBMS_LOB.freetemporary(l_blob);
    RAISE;
END download_file; }
Don;t know what I did wrong, but I could not create an 'on-demand' process to call my procedure. I did not understand what it means when it says 'To create an on-demand page process, at least one application level process must be created with the type 'ON-DEMAND'.
so I had to use a blank page with a call to my procedure in the onload - before header process and that seems to work ok.
Thank you,
Mark

Question about error code

I have been having problems when I try to open applications such as IPhotos or Photoshop. They keep on quitting. I did the Hardware Test and it showed error code 2MEM/5/4:DIMM1/J31. Does anyone know what it means and what I should do? I do not have a warranty anymore and now I wondered if I am gonna have to get the coverage plan (my budget is tight right now). Thank you for any help you can give me.

Either the module has failed or has come loose. At this time I'd open up your computer and make sure it's still locked in place. Afterwards, no need to run the hardware test, just check with System Profiler to see if you were able to nudge it back into position.
Once in a while RAM modules do fail, but not very often.
Edit-
Since you apparently did not purchase this from Apple, it probably is still under lifetime warranty by the seller, so look up your original order number on the invoice and fill out an RMA request on the website of your supplier, or of the manufacturer (brand) itself. If they don't have a Support section or warranty or RMA section, you'll have to email them.
Put off thinking about eBay until you find out if it will be replaced under warranty.
[If you had an extra 1GB of memory, that is not going to be a bargain on eBay, as many are just now upgrading and trying to buy that size, but if you had an extra 512MB, then that is what can be found for a fraction of the price you'd have to pay for new anywhere else. If you're really lucky you can find someone with a relatively new iBook or PowerBook who might be looking to sell what hardly had any use. Caution in shipping is required, as the biggest cause of RAM failure is mishandling of the module between manufacture and packaging.]

I have a question about error messange in [Post Goods Issue] process.

Dear all.
I'm working a SD system operater in south Korea.
I'm really sad for our recent defeat in worldcup gameTT.
Anyway, I need your help.
When I make outbound delivery document and post GI,
I got a message like this :
Fld selectn for mvmt type 601 / acct 43010101 differs for Customer goods movement (015)
Message no. M7093
I don't know to solve this problem.
I Think this is a kind of LE module's error,
But there are no LE professional in my company.
So, I need your help.
And also, I try to find this error using message class M7, no 093.
I found the message in the class, but embarrassly, there is no result the maessage's where-used-list!.
PLZ let me know the solution about this.
Best Regards.
Kwangkyun choi.
Edited by: Kwang-Kyun Choi on Jun 21, 2010 3:16 AM
Edited by: Kwang-Kyun Choi on Jun 21, 2010 3:22 AM

Hi,
If you read the long text of the error message, you can find out that the cause of the problem is due to the incompatible setting of fields selection between movement type and G/L account.
SAP note 9281 will help you to solve this problem.
The system is functioning as designed, a check is done on both tables T004F (FI) and T156B (MM). These tables define what data is required, optional,etc... when processing the transaction. There are certain fields that are contained on both tables.
For those fields that are redundant, the field selections must be the same. Since the data is processed through a single dynpro, the system must have only one instruction for a data field. This is why message M7 093 is being generated when optional is specified for MM and required is specified for the General Ledger.
Please read SAP note 9281 and, according to it, execute the report RM07CUFA to compare the field selection definitions in MM
and FI. Maintain the incorrect settings from the report (when a red line appears, it means that it is wrong so you have to review your customizing settings). The customizing transactions for setting the field status are:
- OMBW -> field status group by movement type.
- OBC4 -> field status group for finantial documents, defined in the G/L account master data.

Question about error-code in web.xml

Can you use pattern matching for error-codes?
Instead of
<error-code>401</error-code>
<error-code>403</error-code>
<error-code>404</error-code>
etc..
you could just do
<error-code>4*</error-code>

I don't know a replacement for this, but I recommend to post this questione into Servlets section to get more chances for receiving answers...
Regards,
Mohammed Saleem

Question about error-handling in PL/SQL

Hi friends,
I would like to know if there is a way for error handling for insert and update statements in PL/SQL???
Like when for example an insert fails!
thanxx
Schoeib

You should get a book about such fundamentals!
This is not an online course...
begin
insert into emp values(...);
exception
when no_data_found then
when others then
end;

Quick question about errors

System.out.println(cheese);
the missing quotes around cheese, is that run time error or syntax error? i use eclipse. so it tells me right away about the error. so i'm wondering if it's run time error or not. i thought it was a syntax error but in this python book i'm reading, it's telling me it's a run time error. which is it?
just confirming: syntactic errors are like grammar mistakes right?

802807 wrote:
System.out.println(cheese);
the missing quotes around cheese, is that run time error or syntax error?Depends on whether a variable called "cheese" is in scope :)
i use eclipse. so it tells me right away about the error.Aren't IDEs nice like that :)
i thought it was a syntax error but in this python book i'm reading, it's telling me it's a run time error. which is it?
In Python it is, in Java see above.
just confirming: syntactic errors are like grammar mistakes right?no.
Syntax errors are mainly spelling errors.
Grammatical errors would more likely expose themselves as logic errors causing runtime exceptions or just plain unexpected and incorrect application behaviour.
Like your System.out.println(cheese); could be either.
If you intented to write System.out.println("cheese"); it's a spelling error and therefore a runtime error.
If there happens to be a variable "cheese" in scope that you didn't intend to use it turns into a runtime malfunction as something is printed that you didn't want printed, a grammatical error.

Question about error message in Adobe Reader

I reinstalled Reader and now when I try to open a program I get the error message Acrobat Failed to load its Core DLL

Hi
Please follow this KB doc: http://helpx.adobe.com/acrobat/kb/reader-core-dll-error.html
Thanks

General QUestion about error handling

Hello,
I am writing my own VI's to communicate with my hardware. Each one of the VI's incorporate numerous error checking routines to detect if the desired operation completed correctly. If error(s) are detected with a VI, the "Bundle by Name" VI is used to update the Natiinal Instruments error cluster with the appropriate info each time a error occurs.
What I am finding is that the VI error cluster contains the last error found, instead of the first error found. Please be aware that I am assuming (we know what that stands for) is that the National Instruments error cluster is accumulative, so if I add four errors to the cluster, then the error cluster contains at least four errors.
So how do I find the first error that was entered into the error cluster. I have found a vi called "Find First Error:, but I am confused (as usual) on how to get what I want. So I am asking for "divine guidance" or a kick in behind from the Labview wizards on how to correctly handle errors.
Regards,
Kaspar
Regards,
Kaspar

The cluster is a standard cluster and is not accumulative.
Usually, the way to handle this is to check the error in terminal and if it is has an error to pass the error instead of executing the code. That way, when you have an error, the rest of the code does not execute. Here's an example:
If you want to merge the error numbers, search the forums for Mike Porter's error stacker.
Try to take over the world!

Question about error message in SMTP log

Does anyone have any idea what this error message is in my log? I see it a couple of times a day.
table hash:/etc/aliases(0,lock|fold_fix) has changed -- restarting
Message was edited by: J Moore

Who says it's an error message?
Are there any problems with your mail delivery? Anything else in the logs that indicates a problem?
I don't know specifically but it reads as though something is changing /etc/aliases and postfix is reloading to incorporate the changes. I'd look at what's in that file - preferably before and after it gets changed, to see what's going on. I'd hazard a guess that it's some kind of email address white/grey/backlisting process that's periodically updating the list of emails to allow/deny, but that's just a guess.

Question about error 11

I'm getting an error message (no. 11) saying I have to uninstall and reinstall InDesign. What will happen to all my files created?

Unless you managed somehow to save your documents in one of the application folders, reinstalling will not affect them.
But before you go to all that work, tell us which version of ID, which OS, and what you were doing when you got this error.

Simple Question about error

When I run the code from:
http://www.devdaily.com/java/jwarehouse/hsqldb/src/org/hsqldb/lib/HashMap.java.shtml
I get the following error when trying to compile
package org.hsqldb.store does not exist
I have jdk 1.6 and can see no reason why this would occur.
Here is the code from the above site:
package org.hsqldb.lib;
import org.hsqldb.store.BaseHashMap;
* This class does not store null keys.
* @author fredt@users
* @version 1.7.2
* @since 1.7.2
public class HashMap extends BaseHashMap {
    Set        keySet;
    Collection values;
    public HashMap() {
        this(16, 0.75f);
    public HashMap(int initialCapacity) throws IllegalArgumentException {
        this(initialCapacity, 0.75f);
    public HashMap(int initialCapacity,
                   float loadFactor) throws IllegalArgumentException {
        super(initialCapacity, loadFactor, BaseHashMap.objectKeyOrValue,
              BaseHashMap.objectKeyOrValue);
    public Object get(Object key) {
        return super.getObject(key);
    public Object put(Object key, Object value) {
        return super.addOrRemove(0, 0, key, value, false);
    public Object remove(Object key) {
        return super.removeObject(key);
    public boolean containsKey(Object key) {
        return super.containsKey(key);
    public boolean containsValue(Object value) {
        return super.containsValue(value);
    public void putAll(HashMap t) {
        Iterator it = t.keySet.iterator();
        while (it.hasNext()) {
            Object key = it.next();
            put(key, t.get(key));
    public Set keySet() {
        if (keySet == null) {
            keySet = new KeySet();
        return keySet;
    public Collection values() {
        if (values == null) {
            values = new Values();
        return values;
    class KeySet implements Set {
        public Iterator iterator() {
            return HashMap.this.new BaseHashIterator(true);
        public int size() {
            return HashMap.this.size();
        public boolean contains(Object o) {
            return containsKey(o);
        public Object get(Object key) {
            int lookup = HashMap.this.getLookup(key, key.hashCode());
            if (lookup < 0) {
                return null;
            } else {
                return HashMap.this.objectKeyTable[lookup];
        public boolean add(Object value) {
            throw new RuntimeException();
        public boolean remove(Object o) {
            int oldSize = size();
            HashMap.this.remove(o);
            return size() != oldSize;
        public boolean isEmpty() {
            return size() == 0;
        public void clear() {
            HashMap.this.clear();
    class Values implements Collection {
        public Iterator iterator() {
            return HashMap.this.new BaseHashIterator(false);
        public int size() {
            return HashMap.this.size();
        public boolean contains(Object o) {
            throw new RuntimeException();
        public boolean add(Object value) {
            throw new RuntimeException();
        public boolean remove(Object o) {
            throw new RuntimeException();
        public boolean isEmpty() {
            return size() == 0;
        public void clear() {
            HashMap.this.clear();
}

Hi,
How are you executing your application?
Steps to set classpath:
Right click on My Computer-->Select Properties->Goto Advanced Tab->Click Environmental Variables.
In User Variables for Administrator section click new and add an entry for classpath as follows.
Variable Name: classpath
Variable Value: C:\YourDatabaseInstallationDir\lib\abc.jar;.; (ie select the JAR file from lib directory from the installation directory of DB.)
OR
Copy the JAR file in lib folder of your application(if your application is a web application)
Hope my sugesstions helped you.
Thanks,
Kiran

Question about error Debian

Hello everybody. I work in a French Company.
We want to deploy the last version of Debian (Jessie)
But, the drivers/software Xerox Printer Manager doesn't work with this version.
With the Debian Wheezy, all works correctly, but with Jessie, impossible to print, and we have no error message.
Do you know this problem?
How resolve it?
Thanks a lot.

Hi Quangngaicty,
Thank you for using the Support Forum. You do not mention which machine you are are using. As for the Xerox Printer Manager you will need to check with your local support centre for information on compatibility.

Question about Error Statistics

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