Side effects disabling rsh (SUN OS)

Hello.
For security reason OS administrators want to disable the rsh on all servers.
Can anyone list what are the side effects in SAP systems (tools or transactions which would not work anymore) and which could be a workaround?
Thanks a lot, kind regards,
Dino

AFAIK with newer Solaris 10 installations all remote services are disabled by default and the system works. For a single instance rsh is not needed.
If you configured other rem* commands in SM49 you may need to replace them to use ssh instead.
Markus

Similar Messages

Would like to disable HTTP and use only HTTPS yet I get side effects

Hello,
I have established a secure connection between the AS ABAP and AS Java.
I would like assure that all communication between the servers is using https and for that, as a test, I have deactivated the http service using SMICM transaction.
The only side effect I could recognize so far is that the Web Dynpro for ABAP stuff doesn't work through transaction SE80, the working area simply doesn't come up. If I activate HTTP again it is working.
Am I doing the right thing by disabling HTTP completely and if yes, what else do I need to do in order to prevent this side effect from happening?
Roy

humuhumunukunukuapuaa wrote:
If I get some nice approvals on my app spree in 10 days, I would like to close Talbots and Abercrombie and Fitch store cards. Total CL for the 2 is $2,700 ($1,350 each) but I can make up for that closure and utilization loss by getting quite a bit more than those amounts on majors during my app spree. Talbots has only been open 4 months, A&F one year. I have other cards that are the same age or older so should not majorly affect AaoA. Thoughts? I know some will say don't close cards, but they're store cards and I don't need to be responsible for store cards I don't use.If you have no use for them and don't foresee using them in the future then you should probably close them out. They won't affect your AAoA as the cards will stay in your reports for 10 years. No sense in keeping cards that you don't want just to take up room in your sock drawer.

What exactly are side-effects in #pragma no_side_effect?

Which of the following qualify as side-effects for the purposes of #pragma [no_side_effect|http://docs.sun.com/app/docs/doc/819-5265/bjaby?a=view#bjacp]:
1. dynamically allocating/deallocating memory using malloc/free or operator new/delete
2. exiting the function by throwing a C++ exception
3. temporarily changing the disposition for a signal (e.g., ignoring or suspending a signal)
4. creating a thread and joining with it

Thanks for your answers! Just to make sure I understand correctly: accessing the local state of the caller through a parameter is not a side-effect. I.e., in the following snippet the function has_no_side_effects() has no side-effects:
int get (int *p) { return *p; }
void set (int *p, int x) { *p = x; }
void has_no_side_effects () {
    int x;
    int y;
    set (&x, 0);    // not a side-effect (x is local)
    y = get (&x);   // same
}But in the following, has_side_effects() does:
void has_side_effects () {
    static int x;
    static int y;
    set (&x, 0);    // side-effect: writing a "global"
    y = get (&x);   // side-effect: reading a "global"
}Also, reading global const data (i.e., what might be in ROM) is not a side-effect. Correct? E.g.,
static const int global[] = { 1, 2 };
void has_no_side_effects () {
    int x;
    int y;
    x = global [0];   // not a side-effect, global is in ROM
    y = global [1];   // same
}

Hey guyz.. i wanna ask if i get an updated version from itunes when i plug my iPhone into the Pc, i get a letter tells me that there is an update for your iPhone ... i wanna ask is it safe to download ?? and does it make any side effects on longTerm using

hey guyz.. i wanna ask if i get an updated version from itunes when i plug my iPhone into the Pc, i get a letter tells me that there is an update for your iPhone ... i wanna ask is it safe to download ?? and does it make any side effects on longTerm using ??

It is safe to download if your phone is not jailbroken. Before you download it, however, take some precautions:
Reboot your computer
Disable your antivirus and firewall
Connect the phone cable to a USB port directly on the computer, not a hub
Before updating right click on the name of the phone in iTunes and choose "Backup"
When you are given the choice choose "Download only", not "Download and Update"
After the download completes successfully click the Update button to install it.
Most of these steps are just being overly cautious, as most people ignore them and have no problems. But occasionally the extra steps save grief.

Any side effects on JRE/JVM when setting Desktop Heap Size?

In Win2003 we experience a limitation of about 70 java.exe's. By setting the Desktop Heap Size we can increase this limit to more than double. Link showing more info on Desktop Heap Size:
http://blogs.msdn.com/ntdebugging/archive/2007/01/04/desktop-heap-overview.aspx
Does this give any side effects to the running java.exe's?
Has anyone experimented with this?

Hi Bobo
It seems to be a bit small. I have close the same configuration like you and set the
maxMemory to 512 MB/server
Regards Ruedi :-)
Bob Krause schrieb:
Hello,
I have a customer that is running WLS 6.1 sp4 and they have set the JVM max memory
value to 64M on a Sun Solaris box with over 6 meg of memory and 4 CPUs.
We have an application on it that makes use of connection pooling, session objects,
over 30+ stateless session beans, and has 100-200 users connected to the application
for 4-8 hours at a time.
Does this value of 64M make any sense??? This is the default out of the box setting
that we have setup on our development PCs.
Also as a side note, can any point me in the direction of any formulas for the
calculation of this number and also the number of execute threads.
Thank you,
Bob

Side effects of "_system_trig_enabled"

Hi! I'm having trouble on setting the parameter "_system_trig_enabled".
Actually, I just migrate our Oracle 8i Database to Oracle 9i, and since I've enabled this parameter, some forms applications have presented side effects.
One of these side effects happens when a visual component of our application doesn't show results from a query. Automatically, when I disable "_system_trig_enabled" the applications presents a normal behavior.
I'd like to ask if anyone know what's happening. I've noticed this parameter is affecting only the applications running on Windows 95/98. Win2K applications present a normal behavior independent the parameter.
Best regards,
Marcio.

You have told us almost nothing.
1. What version of Oracle? Surely you don't think they are all the same.
2. What "other" queries? We have no idea what you are doing.
It is impossible to answer your question without knowing a lot about your system.
Simply put any change that affects optimizer behaviour, by definition, affects optimizer behaviour.
How that may or may not affect any particular system requires testing ... not a ouija board or tarot cards.

Path Segment Reshaping feature's unpleasant side effect

So an apparent side effect of the new Path Segment Reshaping feature is that the direct selection tool now only selects a portion of the path you click on. This is very annoying! It makes it look like your path is non-contiguous. Is there any way to disable Path Segment Reshaping?

It seems to only happen with curved paths that:
are not a complete circuit
have four or more anchor points
I think this is a bug, though, because if your path is a closed circuit, it doesn't happen, and the path segment reshaping feature continues to work regardless.

Side Effects using a UIInput to determine whether a component is rendered

Hi,
I'm trying to use the value of a UIInput component to decide whether or not to render another component and am getting some strange side effects. When the hidden component is re-rendered after being hidden, the selected value is not displayed. This does not happen if I copy the value of a ValueChangeEvent and then use that as my return value. Any idea what is going on here? Switching the commented out line in getControllerValue in BackingBean.java should demonstrate the issue.
Thanks,
Pierce
index.jsp<?xml version="1.0" encoding="UTF-8" ?>
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page"
     xmlns:f="http://java.sun.com/jsf/core"
     xmlns:h="http://java.sun.com/jsf/html"
     version="2.0">
     <jsp:directive.page contentType="text/html; charset=UTF-8" />
     <f:view>
          <html>
          <head>
          <title>test</title>
          </head>
          <body>
          <h:form id="testForm">
               <h:panelGrid columns="2" columnClasses="labelColumn, inputColumn">
                    
                    <h:outputLabel value="Controller:"></h:outputLabel>
                    <h:selectOneMenu id="controller"
                         binding="#{backingBean.controller}"
                         valueChangeListener="#{backingBean.changeController}"
                         immediate="true" onchange="submit()" required="true">
                         <f:selectItems value="#{backingBean.controllerItems}" />
                    </h:selectOneMenu>
                    
                    <h:outputLabel for="hideme" value="Input to hide:"
                         rendered="#{(backingBean.controllerValue != 1) and (backingBean.controllerValue != 5)}"></h:outputLabel>
                    <h:selectOneRadio id="hideme" value="#{backingBean.hideme}"
                         required="true"
                         rendered="#{(backingBean.controllerValue != 1) and (backingBean.controllerValue != 5)}"
                         >
                         <f:selectItems value="#{backingBean.hidemeItems}" />
                    </h:selectOneRadio>
               </h:panelGrid>
          </h:form>
          </body>
          </html>
     </f:view>
</jsp:root>BackingBean.java
package test;
import java.util.LinkedList;
import java.util.List;
import javax.faces.component.UIInput;
import javax.faces.component.html.HtmlSelectOneMenu;
import javax.faces.event.ValueChangeEvent;
import javax.faces.model.SelectItem;
public class BackingBean {
     private UIInput controller = new HtmlSelectOneMenu();
     private Integer hideme = 2;
     private Integer copiedValue;
     private List<SelectItem> controllerItems = new LinkedList<SelectItem>();
    private List<SelectItem> hidemeItems = new LinkedList<SelectItem>();
    public BackingBean(){
         controller.setValue("3");
         controller.setSubmittedValue("3");
         copiedValue = 3;
         controllerItems.add(new SelectItem(1, "Controller 1"));
         controllerItems.add(new SelectItem(2, "Controller 2"));
         controllerItems.add(new SelectItem(3, "Controller 3"));
         controllerItems.add(new SelectItem(4, "Controller 4"));
         controllerItems.add(new SelectItem(5, "Controller 5"));
         hidemeItems.add(new SelectItem(1, "Hide Me 1"));
         hidemeItems.add(new SelectItem(2, "Hide Me 2"));
         hidemeItems.add(new SelectItem(3, "Hide Me 3"));
     public UIInput getController() {
          return controller;
     public void setController(UIInput controller) {
          this.controller = controller;
     public Integer getHideme() {
          return hideme;
     public void setHideme(Integer hideme) {
          this.hideme = hideme;
     public List<SelectItem> getControllerItems() {
          return controllerItems;
     public List<SelectItem> getHidemeItems() {
          return hidemeItems;
      * Value change listener
     public void changeController(ValueChangeEvent e){
          System.out.println((String)e.getNewValue());
          copiedValue = Integer.parseInt((String)e.getNewValue());
      * Helper
     public Integer getControllerValue(){
        // why does the following line not work?
     //     return Integer.parseInt((String)controller.getValue());
          return copiedValue;
}

This is a How to test a variable to determine whether it is a NUMBER.
Cheers, APC

MOPZ-generated SIDE EFFECT report never shows up in SOLMAN

HI - we are using SOLMAN ST 400, SPS#24
I am doing a MOPZ transaction for an ERP604/NW701 system landscape - specifically for updating from a lower SPS level to a more recent one...
In MOPZ....i requested the SIDE EFFECT report.....at that time got to a screen where it displayed the following message "Your request has not yet been processed. Please check back again in a few hours. "
I've waited more than 3 days - and still - when I go back into SOLMAN....into this same MOPZ transaction#....to look for the SIDE EFFECT report......it doesn't show up anywhere - instead....i just continue to see the same message (Your request has not yet been processed. Please check back again in a few hours. )
Please advise
(it seems that the process for MOPZ-generated side effect reports is not as "user friendly" as the "old" way - outside SOLMAN/MOPZ - of doing this - in the "old" way, using SMP....you always got a request id#....and you always got an EMAIL in a few hrs ....that you clicked on to get the report.....i see neither of these when using MOPZ)

Hi there,
sometimes the side-effect report may take longer to arrive due to a long processing time for the request. This may happen due to many concurrent requests at the same time, or because there are technical issues in the service backend systems here at SAP.
I hear that you already got the side-effect reports after a delay, so I guess that your request was finally processed.
Best regards,
Miguel Ariñ

What Side-Effects/Problems Can I Expect With Perian?

I have installed Perian in order to view downloaded .flv videos from Vimeo.
However, I seem to recollect a year or so ago, that some people were experiencing unwanted side-effects with other apps such as FCE.
I can't remember what these were or how to stop them other than by uninstalling Perian.
Any information on things to be aware of would be appreciated.

That reassures me . . . touch wood (aka knock on wood!).
I shall now forget that I have it installed but hope that someone will remind me if any of my pro apps start misbehaving!
Incidentally, yesterday I downloaded some 1080 x 720 HD videos from Vimeo made by friends, and when played back on my 40" Bravia via the WD HDTV they look very impressive. The MP4 ones play immediately on the TV but the FLVs need converting in Streamclip to MP4 (H.264 and AAC).
The only fault is that some occasionally show a very slight glitch, almost like a dropped frame, but it is not very noticeable unless you are looking for it. No doubt I will discover what I am doing wrong in the near future.
A couple of years ago I could never have imagined getting anything so good from the internet via a telephone line . . . . . I wonder when it'll be providing 1920 x 1080!

Desktop effect disabled after update

Hello,
After updating kde 4.5 today, my desktop effects disabled and my awn navigator doesn't work properly.
When try to enable it, I get the message: Desktop effects suspended by other application. When restart with Alt-F12, awn disappears; when I shut down kde, I get the message -- Desktop effects is too slow disabled.
Before update everything worked perfectly.
Proc: dual core 2.6
Video: ati 3600
memory: 6 gig
Any idea what could be wrong?
jmak

https://bbs.archlinux.org/viewtopic.php?id=103522

Newbie: Method should or should not have side effects

Hi experts,
What does it really mean when I read for the InputVerifier class that the method 'shouldYieldFocus' can have side effects but the method 'verify' should not have side effects.
Thanks for you comments.
tuckie

I am but a newbie only asked to learn and maintain. The reason I ask about side effects is that the shouldYieldFocus() method is invoked twice for the same tab key event. When the tab key (or mouse click) wants to move focus to another input the current input's shouldYieldFocus() is invoked, it in turn invokes verify() which validates data returning true or false and checks to see if a warning should be issued that the data is legal but high. If the data is not high it also returns true and the focus is yielded. Also shouldYieldFocus() is only invoked once. It is when the data is high and the showConfirmDialog() is put up that I get the second shouldYieldFocus() invocation. The previous coder put in a de-bouncing mechanism and I think this is where/how the problems with the next field are created. Sometimes the next field's focusLost() is invoked without the operator making any input. The focusLost() does some fill in the blank things that are reasonable only if the operator really wanted not to fill in any data in the field.
Back to my original point, I was wondering if the fact that the verify() method may have a dialog box put up before it returns to shouldYieldFocus() is the kind of thing that shouldn't be done - no side effects. If so then it could be the likely cause of the problem with the next field sometimes being automatically filled in as if it had received a focusLost() event.
tuckie

Cursor_sharing Side-effects

I have a situation where several off-the-shelf applications (same vendor) are running on the same instance. One of the is performing poorly and I was able to get a good performance boost with cursor_sharing=force. After much testing in QA, we are ready to move it to production.
Now two of the other applications are having trouble. Apparently, the applications do some very basic selects from sqlplus and then parse the results. Setting cursor_sharing to force has had a side-effect (bug) that changes the column widths of these selects. The end result is that the other application fails because it can't parse it correctly.
This is a documented problem and Oracle recommends to always explicitly set your column widths in sqlplus. This is what we want to do, but the effort is not small.
A kludge work-around is to alter cursor_sharing before and after the batch processes. This can be done at either the system or session level.
My question is this: Is there a simple way to set it up so an that when this black-box application create a session, it will set the cursor_sharing to force?
Thanks,
Scott
http://www.erpfuture.com

I have a situation where several off-the-shelf
applications (same vendor) are running on the same
instance. One of the is performing poorly and I was
able to get a good performance boost with
cursor_sharing=force. After much testing in QA, we
are ready to move it to production.
Now two of the other applications are having trouble.
Apparently, the applications do some very basic
c selects from sqlplus and then parse the results.
Setting cursor_sharing to force has had a
a side-effect (bug) that changes the column widths of
these selects. Actually it is the off the shelf applications that have the bug, they are not using bind variables which means you are overparsing and fragmenting your shared pool. Poor performance is about the best you will get from such applications. You are also likely open to security issues that arise from [url=http://www.google.com/search?q=sql+injection
]sql injection.
Cursor sharing force is a workaround for a badly written application. It auto binds all literals. This means plans will change and all literal values are variables which could contain anything which leads to the problem you describe.
select 'test' from dual;becomes
select :b_sys_0 from dual;where :b_sys_0 could be 4000 characters long.
I would second kamathg's advice that if you need to use the cursor sharing workaround to only set it at the session level for the application that needs it using the logon trigger.
You should do this as an interim measure while you file a bug report with the software vendor to have them fix their application.
The security issues do not go away.

Compiler warning PLW-05003 parameter at IN and COPY may have side effects

For the following Procedure:
create or replace
PROCEDURE lob_replace
p_lob IN OUT NOCOPY CLOB,
p_what IN VARCHAR2,
p_with IN VARCHAR2 )
AS
n NUMBER;
BEGIN
dbms_output.put_line('p_what = ' || p_what);
dbms_output.put_line('p_with = ' || p_with);
n := dbms_lob.instr( p_lob, p_what );
dbms_output.put_line('n = ' || n);
IF ( NVL(n,0) > 0 ) THEN
dbms_lob.copy( p_lob, p_lob, dbms_lob.getlength(p_lob), n+LENGTH(p_with), n+LENGTH(p_what) );
dbms_lob.write( p_lob, LENGTH(p_with), n, p_with );
IF ( LENGTH(p_what) > LENGTH(p_with) ) THEN
dbms_lob.trim( p_lob, dbms_lob.getlength(p_lob)-(LENGTH(p_what)-LENGTH(p_with)) );
END IF;
END IF;
END;
When I compile this, I receive the following warning "Warning(15,5): PLW-05003: same actual parameter(P_LOB and P_LOB) at IN and NOCOPY may have side effect"
Line 15, column 5 is:
dbms_lob.copy( p_lob, p_lob, dbms_lob.getlength(p_lob), n+LENGTH(p_with), n+LENGTH(p_what) );
I'm reading about the NOCOPY Compiler hint at
http://download-west.oracle.com/docs/cd/B10501_01/appdev.920/a96624/08_subs.htm#12813 but I'm not for sure what exactly the issue is here?
The syntax for dbms_lob.copy is:
DBMS_LOB.COPY (
dest_lob IN OUT NOCOPY BLOB,
src_lob IN BLOB,
amount IN INTEGER,
dest_offset IN INTEGER := 1,
src_offset IN INTEGER := 1);
Do I need to copy the p_lob to another variable, not sure what do here?

Hi,
Is this really a stand alone procedure, or is it in fact part of a package?
That warning usually comes when parameter is declared with NOCOPY in specification but without in body. Or vice versa.
Could this be the case?
Regards
Peter

Any bad side-effects to lengthy blocking in native code? - crosspost

[This question was also posted on the Native Methods forum a day ago, so far no response]
1) Are there any negative side-effects to having one (or maybe a few) Java threads block for an extended period (e.g. hours) in native code? Naturally the thread would NOT be one of the "special" threads (such as the Swing event dispatcher, etc).
2) Does the answer vary by platform? I'm interested in Win32, Linux and possibly Solaris (in that order).
3) What if I scale the number of threads blocked in JNI code up to 100 threads. Does that change any of the answers? This is perhaps a silly number, I'm just trying to understand if more resources are consumed by blocking in the JNI as opposed to blocking in Java.
4) Do modern JVM's use one native thread per Java thread? If so, then I would guess there is really nothing special about blocking in native code.
Lastly, Is this stuff spelled out in some document? Or is there some newsgroup dedicated to the topic? I looked a comp.lang.java.machine, but there is nothing there but spam.
Motivation for query -- In my application I need to interface with legacy C++ code that blocks (mostly on socket and i/o selects). I'm not thrilled about native code, but if there are no serious side-effects to extended blocking, it may be a viable approach.

[This question was also posted on the Native Methods
forum a day ago, so far no response]
1) Are there any negative side-effects to having one
(or maybe a few) Java threads block for an extended
period (e.g. hours) in native code? Naturally the
thread would NOT be one of the "special" threads (such
as the Swing event dispatcher, etc).No. It is common to have a "reader" thread for a blocking socket connection. This results in a block in native code for days (months). The only impact is that you may end up creating alot of threads to handle this blocking code.
>
2) Does the answer vary by platform? I'm interested in Win32, Linux and possibly Solaris (in that order).I would hope not. You may find that WIn32 will run out of threads fairly quickly (at about 1000 threads) Earlier versions of Linux create a different process per thread which can have a non-trival overhead. Solaris will probibly not care. It has a thread number limit but if you reach it you are probibly doing something wroung.
>
3) What if I scale the number of threads blocked in
JNI code up to 100 threads. Does that change any of
the answers? This is perhaps a silly number, I'm just
trying to understand if more resources are consumed by
blocking in the JNI as opposed to blocking in Java.It takes a while to start a thread, it also consumes a minimal amount of per thread memory which can add up if you have 100s of threads. f you are writing the JNI I would suggest writing it to scale such that say more connections/files etc can be handled by a small number of threads (like NIO does) and these issues are reduced.
>
Motivation for query -- In my application I need to
interface with legacy C++ code that blocks (mostly on
socket and i/o selects). I'm not thrilled about native
code, but if there are no serious side-effects to
extended blocking, it may be a viable approach.See above.

Side effects disabling rsh (SUN OS)

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