Problem combining snoop and logadm

Hello,
I'm running snoop and redirect the output to /var/log/snoop using
snoop -d bge0 > /var/log/snoop &We want to maintain a set of these files to analyze some network issues so we use logrotation:
logadm -p now -C 5 -c /var/log/snoopThe file snoop.0 is created but the filesize of snoop is the same as it was before the logadm command. It seems that the truncation (option -c) doesn't work and I don't know why.
Regards,
Muli

Well, the file in question is open as STDOUT for snoop. Even if the rotate would work, STDOUT would still continue to at the same offset as where it stoped, so you would end up with a file which was padded by a lot of zeros.
You could try and use
snoop -o /var/log/snoop -d bge0
and then you might be able to rotate it with logadm, even though that would only work if logadm can preserve the inode of the /var/log/snoop file.
However, its an extremely bad idea to run snoop on a system for a longer period of time. Snoop will affect the network performance and significantly increase the time it takes for the host to process network data.
What you really should to see if you can solve this with a dtrace script, which gives a much much lower impact on the system.
.7/M.

Similar Messages

Screen problems - black screen and lock-up (plus HDMI issues)

Hi, I'm not sure if these are related to the same fundamental issue, but they are both serious problems that need resolution.
I have a new mid-2012 MBPretina. I am on all the latest updates (10.8.2).
The first problem is the most recent, and the most serious problem. Since I updated the Java a couple of days ago I've been experiencing random black screens and lock-ups. Essentially, what happens is that sometimes when I perform an action (opening an app, clicking a link on a webpage, performing other kinds of in-app actions, etc.) the computer screen will go black. About half the time I can, through my own memory, try keyboard combinations to quit or force quit the most recently used app (the one where the action was just performed), and I will get some glimpse of the underlying apps, while the menubar and other areas will remain black until I move a window on top of the black space. Sometimes no key combinations work and I am forced to perform a hard restart with the power button. This is a serious issue, obviously, since I will lose current work/progress in my apps. I'm not sure if this is because of the new Java update, or has to do with something else, but it started happening shortly thereafter, over the last 2 days. I work most of my waking day on my laptop, and this "black screen of death" has happened about 5 or 6 times a day.
The second problem I have been experiencing since I starting using my MBPr with external HDMI displays in August/September. The problem is that I will plug the MBPr into an HDMI display, the screen will temporaliy go black, and then bring me to the login screen (as if it's crashing, albeit softly). This happens about 1 out of 4 times nowadays.
How can I fix these problems, especially the first?

UPDATE:
Clearly there's a problem because a third of the way through a clean reinstallation from scratch it black screened again. Hmmmm.
Now this is not good. Problem is I can't rule out potential updates from Apple that might have caused this either.
The search for solutions continues.

Problem with CS2 and firefox 3.6x

i have a strange problem arising from a combination of photoshop cs2 and firefox 3.6x browser in XP sp3
when photoshop is minimised to the taskbar and then firefox is minimised, the focus of firefox seems to be passed to photoshop unexpectedly, turning its button dark blue and making it very difficult to maximise photoshop (repeated clicking and swapping of apps sometimes frees it)
has anyone else every experienced anything like this with 3.6?
i have installed 3.5.10 atm which works with no problem at all and holds its own focus when minimised.
Steve

None of those ideas worked. I used the Disk Utility and it indicated that all permissions were OK. I cleared the caches and cookies on Safari and FireFox, and even re-installed FireFox and deleted all of the old files associated with it. Both browsers brought up the Apple support website using the IP address, but neither browser would allow me to log into Apple support to follow this thread. I turned off the Firewall thinking it was the problem. I am running the PC and iMac through a router, then a dsl modem. Could any of those items be the problem?

Problems with RAC and XA: Fallback

Hello,
we are seing problems with RAC and XA (Tuxedo 11, DB 11.2), specifically encountering "ORA-24798: cannot resume the distributed transaction branch on another instance".
The first scenario relates to fallback after a RAC node failure. There are two servers, S1 and S2. S1 makes an ATMI call to S2. Both servers are in the same Tuxedo group, using TMS_ORA. RAC is set up for failover (BASIC), no load balancing.
The sequence is:
- S1 and S2 are connected to the same RAC node n1. All is well.
- RAC node n1 fails. S1, S2 and the TMS_ORA all fail over to RAC node n2. After the failover has happened, all is well.
- RAC node n1 recovers. All is still well (as there is no automatic fallback).
- S1 (or S2) is restarted (either intentionally or because of a crash). Since n1 is up again, S1 connects to n1. Now we get ORA-24798. Permanently.
S1 is connected to n1 and S2 is connected to n2. Since both are in the same group, both use the same XA transaction branch. When called, S2 attempts to JOIN the transaction branch that S1 started. But the DB (11.2) does not allow the same branch to span more than one node. Hence the ORA-24798.
This seems to be a severe limitation in the combination of Tuxedo, XA and RAC. It basically means we still have to use DTP services, even with Tuxedo 11 and DB 11.2. Or are we missing something?
We could put S1 and S2 into different groups, but that seems to be inefficient, and not practical for a real application (10s of servers).
I am extrapolating from this that RAC load balancing would also not work, as S1 and S2 could be connected to different RAC nodes.
Roger

Roger,
When using an external transaction manager such as Tuxedo you should still declare Oracle services as DTP services when using Oracle Database 11g. The Tuxedo documentation is not clear about this. The relevant 11gR2 RAC documentation is at http://download.oracle.com/docs/cd/E11882_01/rac.112/e16795/hafeats.htm and states
"An XA transaction can span Oracle RAC instances by default, allowing any application that uses the Oracle XA library to take full advantage of the Oracle RAC environment to enhance the availability and scalability of the application.
"GTXn background processes support global (XA) transactions in an Oracle RAC environment. The GLOBAL_TXN_PROCESSES initialization parameter, which is set to 1 by default, specifies the initial number of GTXn background processes for each Oracle RAC instance. Use the default value for this parameter clusterwide to allow distributed transactions to span multiple Oracle RAC instances. Using the default value allows the units of work performed across these Oracle RAC instances to share resources and act as a single transaction (that is, the units of work are tightly coupled). It also allows 2PC requests to be sent to any node in the cluster.
"Before Release 11.1, the way to achieve tight coupling in Oracle RAC was to use Distributed Transaction Processing (DTP) services, that is, services whose cardinality (one) ensured that all tightly-coupled branches landed on the same instance—regardless of whether load balancing was enabled. Tightly coupled XA transactions no longer require the special type of singleton services to be deployed on Oracle RAC databases if the XA application does not join or resume XA transaction branches. XA transactions are transparently supported on Oracle RAC databases with any type of service configuration.
A"n external transaction manager, such as Oracle Services for Microsoft Transaction Server (OraMTS), coordinates DTP/XA transactions. However, an internal Oracle transaction manager coordinates distributed SQL transactions. Both DTP/XA and distributed SQL transactions must use the DTP service in Oracle RAC."
This issue came up earlier this year in another newsgroup thread at https://forums.oracle.com/forums/thread.jspa?threadID=2165803
Regards,
Ed

How to combine sales and delivery data

hi
i have requirement to make a report from sales as well as deliveries. Important fields in report are sales document , material , plant , sales document type , country key , sold to party , ordered quantity , delivered quantity , price from vakon ( KBETR ), actual goods issue date.
The required extractors are 2LIS_11_VASCL, 2LIS_11_V_SSL ,2LIS_11_VAKON.
Problem is how to combine sales and delivery data as V_SSL has different key figures.Multicube is not the solution as dont have plant , sold to party and many other fields in V_SSL.
Kindly suggest how to combine sales and deivery data.
Regards,
Monika

I guess you do have shipping point in delivery.
In most scenarios shipping point may not(or) may be same like order plant.
Although they are different you can still roll up the delivery information to order level by plant since you have order # available as reference key in delivery.
With this reference key you can convert all delivery information to order (item) level.
I guess you can use one merge ODS with one cube (or) with 2 ODS for each at order level for validation.
You may have to map delivery type to order type as per R3 configuration as well.
speak with any Logistics guys for help.
cheers
Martin

Airport wifi problems with uverse and gigabit switch resolved

I think there is a bug in airport firmware 7.6 with how spanning tree works in addition to problems with the Uverse router. Having an Airport with a uverse 2wire 3801 and gigabit switch will not work. Putting the extreme in NAT mode with DMZ plus behind the uverse resolved the problem.
Network configuration:
Uverse 2wire 3801 router
    3801 provides prioritization for upstream traffic so skype and VoIP work better when doing a lot of stuff on Internet
Airport extreme firmware 7.6
two airport express 802.11n hardwired to extreme. Set up in bridge mode. All access points have same SSID "create a network" to enable roaming. Ignore anything to do with extending a network. firmware 7.6
two gigabit switches
    Netgear GS608 - 8 port gigabit switch
    Trendnet TEG-S80g - 8 port gigabit switch
    100BT 5 port switch - did not figure into problem
Three Uverse set top boxes wired on Ethernet. They have to be wire directly to the 2wire box to work correctly. See: http://forums.att.com/t5/Features-and-How-To/At-amp-t-U-Verse-modem-setup-Airpor t-Extreme/td-p/2300785
However, you need to be careful to place your own PCs and other internet devices on the network created by your gear (airport extreme in your case), but keep AT&T's set top boxes for the IPTV services IN FRONT of your own router - so they remain on AT&T's provided network.
So it would work like this ...
Network 1: 2wire RG (4 lan ports) -> Any Set tops, and to the WAN port on your AirportExtreme
Network 2: Airport Extreme LAN ports -> to any computers or internet devices (but not AT&T set top boxes).
The RG prioritizes the traffic for your Uverse Voice and your Uverse TV ahead of internet data traffic, as it rationalizes data heading out of your home. If you place your own equipment in that equation (like putting AT&T set top boxes behind your Airport Extreme) the performance and function of your AT&T set top boxes could really flake out on you.
Symptom:
    Everything would be working fine, then intermittently all my wifi access points would stop working. ~6,000 ms latency, dropped packets. Ethernet worked fine. Here is an example of my macbook pinging the extreme when associated with the extreme over wifi with a strong signal.
ping: sendto: Host is down
Request timeout for icmp_seq 23
Request timeout for icmp_seq 24
64 bytes from 192.168.1.64: icmp_seq=25 ttl=255 time=267.051 ms
Request timeout for icmp_seq 26
Request timeout for icmp_seq 27
Request timeout for icmp_seq 28
64 bytes from 192.168.1.64: icmp_seq=26 ttl=255 time=3402.599 ms
Request timeout for icmp_seq 30
Request timeout for icmp_seq 31
Request timeout for icmp_seq 32
64 bytes from 192.168.1.64: icmp_seq=30 ttl=255 time=3060.673 ms
64 bytes from 192.168.1.64: icmp_seq=34 ttl=255 time=24.115 ms
64 bytes from 192.168.1.64: icmp_seq=35 ttl=255 time=31.056 ms
64 bytes from 192.168.1.64: icmp_seq=36 ttl=255 time=39.828 ms
Root cause:
    It looks like the 2wire 2801 router has a problem with spanning tree when interoperating with gigabit switches and airports. There is interplay with the airport.
I did not have this problem until the 7.6 airport firmware. I had been using the Netgear hub for about a year with the extreme in bridge mode. I added the Trendnet hub and upgraded airport firmware at the same time which made fault isolation difficult.
Problem recreation:
Set up airport expresses hard wired to extreme
Connect gigabit switch anywhere to network
Everything OK
Dettach one computer from wifi then reattach, then all wifi stops working. It takes a few seconds for the problem to propagate.
Ethernet still works fine
Problem Resolution:
Connect to 2wire with ethernet
Set 2wire route to have subnet as 192.168.2.x
Set extreme in NAT mode behind 2wire. It will complain about double NAT. Override the warning. Set the subnet to 192.168.1.x so you don't have to change any static IP addresses. Note that 2wire uses 192.168.1.254 as default route whereas airport uses 192.168.1.1.
I set DHCP to start at .10 to leave the lower addresses for assigning static IP addresses to computers I want to expose outside the firewall.
Go into firewall settings. Select airport extreme. Select the bottom setting which is "DMZ Plus". When you go into the airport extreme settings, you will now see that it has the uverse public IP address on its WAN port. NAT port mappings work fine on the extreme behind the 2wire router.

Keeping this very short here is a summary of the actual problem and solution to allow your Apple Airport Extreme to run in Bridge mode on the same subnet as your uVerse settop boxes (if your Layer 2 switch is configurable).
Devices: Uverse, Cisco SG300, and Airport Extreme
uVerse uses Multicast to broadcast video streams between the uVerse network to the settop box, and from settop box to settop box.
X number of Multicast Groups are created based on X number of settop boxes you have. You can see the multicast definitions by logging into the webinterface of the iNid. Each settop box is a member and can choose to display a broadcasted TV stream or not.
Multicast membership is setup by the use of ICMP messages for IPv4 (MLD for IPv6). Each of the settop boxes become members of each others multicast group by reporting up to the iNid (MultiCast Proxy).
In an ideal world a layer 2 switch will track these memberships and only forward a broadcast packet to the ports on the switch to which the settop boxes are connected to. The switch would do these via snooping on the ICMP packets. Most switches by default do not do this by default and simply forward the broadcast packett out every one of it's switch ports.
Here in lies the problem. Problem is that the Apple AES doesn’t do ICMP snooping / filtering and floods the wireless network with these broadcast streams.
In order to fix this you must turn on ICMP snooping and filtering on the switch (or buy a switch that does this). I have a Cisco SG300 and list out the configuration below.
Other notes:
Ensure that all Media renderers (settop boxes) and servers are wired directly off the switch and not attached to any of the Airport Express ports. This way no media transverses the Airport (only control point traffic goes through the WiFi - which is fine). Obviously if the IGMP snooping switch sees any client requesting Multicast streaming traffic on the same port as the WAP, it will add that Multicast address to the forwarding table for that port, and then, yes it could get flooded.
Remember, you need to allow some Multicast traffic through your WAP to allow UPnP discovery to work (assuming that you will be using Wireless control points.)
Read the Multicast chapter in the SG 300 switch Admin Guide as it explains things very well.
Setting up multicast on the SG300s using the WebUI:
1. Multicast/Properties/
Tick enable Bridge Multicast Filtering Status for VLAN 1, and
set the Forwarding Method to IP Group Address for both IPv4 & IPv6.
2. Multicast/ IGMP snooping/
Tick enable IGMP snooping status then select and edit the entry and ensure that IGMP querier status is ticked.
It's essential for IGMP snooping to work that there must be at least one active IGMP querier on the network - if more than one is enabled, they will carry out an "election" to decide which one should be active (normally the one with the lowest IP address.)
3. Multicast Router Port
Set whichever port that is connected to the uVerse iNid to Status which means that it the uVerse router connected to this port is the Multicast Router
4. Multicast/ Unregistered Multicast
set all ports to Filtering. (The default is Forwarding.)
There are a lot of other variables within all the above - the defaults are OK, you should probably leave them alone!
In the config file you would then expect to see the above appearing as something like this:
ip igmp snooping
ip igmp snooping vlan 1
ip igmp snooping vlan 1 immediate-leave
interface vlan 1
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
interface range gi1-10
bridge multicast unregistered filtering
ip igmp snooping vlan 1 querier
ip igmp snooping vlan 1 querier address <IP-Addr>

I am having problems combining 2 pdf's together. When I do it crashes Acrobat XI. The files are fairly large about 20Mb each if that helps. Others have been able to combine them without issue. Any Ideas?

I am having problems combining 2 pdf's together. When I do it crashes Acrobat XI. The files are fairly large about 20Mb each if that helps. Others have been able to combine them without issue. Any Ideas?

My daughter has had her Razr for about 9 months now. About two weeks ago she picked up her phone in the morning on her way to school when she noticed two cracks, both starting at the camera lens. One goes completely to the bottom and the other goes sharply to the side. She has never dropped it and me and my husband went over it with a fine tooth comb. We looked under a magnifying glass and could no find any reason for the glass to crack. Not one ding, scratch or bang. Our daughter really takes good care of her stuff, but we still wanted to make sure before we sent it in for repairs. Well we did and we got a reply from Motorola with a picture of the cracks saying this was customer abuse and that it is not covered under warranty. Even though they did not find any physical damage to back it up. Well I e-mailed them back and told them I did a little research and found pages of people having the same problems. Well I did not hear from them until I received a notice from Fed Ex that they were sending the phone back. NOT FIXED!!! I went to look up why and guess what there is no case open any more for the phone. It has been wiped clean. I put in the RMA # it comes back not found, I put in the ID #, the SN# and all comes back not found. Yet a day earlier all the info was there. I know there is a lot more people like me and all of you, but they just don't want to be bothered so they pay to have it fix, just to have it do it again. Unless they have found the problem and only fixing it on a customer pay only set up. I am furious and will not be recommending this phone to anyone. And to think I was considering this phone for my next up grade! NOT!!!!

Howto to get the year timestamp in syslog and logadm files

5.10 Generic_141414-10 sun4u sparc
Howto to get the year timestamp in syslog and logadm
We have to keep logs files for a long time, I was exploring logs in /var/adm/secure and noticed that log files over a year old did not have a year time stamp, they are in this format:
Nov 12 09:09:16
And on the face of it. /varlog/syslog is the same, I thought no problem, there will be something in syslog.conf or logadm.conf I change and it will be fixed, but I cannot find any options to change this, how do I get the year in my log files?
The "date" command does output the year:
Friday, September 14, 2012 7:57:36 AM

My guess is that the fields in a message logged by syslog are fixed, so you can't add a field to it.
The reason for this is simply that there might be other applications parsing your syslog messages, or there might be other systems syslogging to your system, and that would break if you would add fields.
The easiest workaround is probably to keep better track of your logs by either implementing an annual rotation of them from crontab, or log the date using the "logger" command on a regular basis.
A third option would be to look at syslog-ng or rsyslog, which is more flexible when it comes to storing logs, and among other things can store them into a SQL db..
.7/M.

Combine Year and Month two Dimensions together side-effect

My user ask me to combine Year and Month(Period) those two dimensions as one dimension. I found it will be difficult to get TB-Last amount except "Hard Code"
For example:
I got three years :2007,2008, 2009
One Banance Account: Current Asset
12 Months: Jan ~ Dec
Obvioulsy, I would mark Current Asset as TB Last dut to it is a balance sheet account. And 2008 Jan Current Asset amount will equal to 2007 Dec amount.
But if I combine Year and Months togethes as following
2007
200701
~
200712
2008
200801
~
200812
2009
200901
~
200912
Then Current Asset TB Last amount for Jan of each year will always be 200912 amount. The only way I think th solve the problem is "Hard Code". Can anyway provede me an more
effient way to do it?
Edited by: user7397045 on 2009/6/22 上午 8:27

if 200701 through 200712 are children of 2007 then if you mark current asset as TB last, 2007 will equal 200712 and 2008 will equal 200812, etc. For 2009 it would currently equal #missing since there is nothing in 200912. That could ber changed by setting current asset to be time balance last skip missing.
If you had 2007Q1 through 4 in there then 2007Q1 would equal 200703, etc

Problems combining rolls

Apologies in advance, because this seems to be a FAQ, but none of the answers I found by searching are definitive. I am running iPhoto 6.0.6 (322) & I am having a hard time combining rolls.
From searching these forums, I have made sure that the library is selected, and that all the years are ticked. However, still when I select two rolls and try to combine them, I might be able to choose Create New Roll or it might be grayed out - there's no way to know in advance. Then the answer is to select some photos here and there, do various other things, and then go back, and see if it's now possible. This is hardly very satisfactory.
I also saw mention of a bug with the Helvetica font, so I used Font Book to disable and re-enable this, but it didn't help. Is there basically a bug in this function, or is there a very precise sequence of things which I have to do to make it work consistently?
Macbook Pro Mac OS X (10.4.9)

niall_obroin:
Welcome to the Apple Discussions. You cannot combine two rolls by select the roll icons and using the menu option. You need to select the photos in each roll and then the menu option will be availalbe.
If you're combining two complete rolls try selecting the photos from one roll ande dragging and dropping on the the roll icon of the destination roll. Then your can rename the combined roll in the Info window at the bottom of the Source pane.
Do you Twango?
TIP: For insurance against the iPhoto database corruption that many users have experienced I recommend making a backup copy of the Library6.iPhoto database file and keep it current. If problems crop up where iPhoto suddenly can't see any photos or thinks there are no photos in the library, replacing the working Library6.iPhoto file with the backup will often get the library back. By keeping it current I mean backup after each import and/or any serious editing or work on books, slideshows, calendars, cards, etc. That insures that if a problem pops up and you do need to replace the database file, you'll retain all those efforts. It doesn't take long to make the backup and it's good insurance.
I've written an Automator workflow application (requires Tiger), iPhoto dB File Backup, that will copy the selected Library6.iPhoto file from your iPhoto Library folder to the Pictures folder, replacing any previous version of it. You can download it at Toad's Cellar. Be sure to read the Read Me pdf file.

My computer continually asks me to enter my password for Keychain access. This problem is continuos and I am having trouble with eliminating it. I have changed my password through Security and my Accounts numerous times to no avail. Is there anythin

My computer continually asks me to enter my password for Keychain access. This problem is continuos and I am having trouble with eliminating it.
I have changed my password through Security and my Accounts numerous times to no avail.
Is there anything I can do other than Resetting the entire computer and re installing all of the software, apps, etc.etc.

Back up all data before proceeding.
Launch the Keychain Access application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
Select the login keychain from the list on the left side of the Keychain Access window. If your default keychain has a different name, select that.
If the lock icon in the top left corner of the window shows that the keychain is locked, click to unlock it. You'll be prompted for the keychain password, which is the same as your login password, unless you've changed it.
Right-click or control-click the login entry in the list. From the menu that pops up, select
          Change Settings for Keychain "login"
In the sheet that opens, uncheck both boxes, if not already unchecked.
From the menu bar, select
          Keychain Access ▹ Preferences... ▹ First Aid
There are four checkboxes in the window that opens. Check all of them. if they're not already checked. Close the window.
Select
          Keychain Access ▹ Keychain First Aid
from the menu bar and repair the keychain. Quit Keychain Access.
If you use iCloud Keychain, open the iCloud preference pane and uncheck the Keychain box. You'll be prompted to delete the local iCloud keychain. Confirm. Then re-check the box. Follow one of the procedures described in this support article to set up iCloud Keychain on an additional device.

Help, please - Combined Limits and Expressions for Insurance Plans

I seem to be configuring something incorrectly using the Combined Limits and Expression in the IMG. I was wondering if somebody has used this successfully and can give me some pointers? I've used it successfully when I've limited a plan to coverage of not more than 50% of the coverage for another plan, but I can't seem to get it to work for my current requirement. Here is my current requirement:
I have 2 life insurance plans, one basic and one supplemental. The supplemental can only be elected if the basic plan is elected, so the basic plan would be the priority plan. The individual maximum allowable coverage amount for each plan is $3,000,000, which is configured under the coverage rules. However, the combined limit between the 2 plans is also 3,000,000. A person can have the basic plan only and have the full 3 mil, or they can have both plans and must not go over the 3 mil between the 2 plans. The basic plan is 1x but the supp plan can be 1x - 8x so it is very possible that the basic will not hit the limit, but the supp will.
I tried to set the combined limit of 3,000,000 for the 2 plans using the 2 pieces of the combined limits config, but I've tried everything, and it does not cut them back.
Can anyone tell me step by step how to configure this, or do I need to enable and develop a user exit?
Thanks!
Lisa

Hi, Lisa
This should not be a problem.
Firstly, have you set the Basic plan as a corequisite for your optional plan?
Benefits--> Flexible Administration -->Prerequisites and Corequisites --> Define Corequisite Plans;
Choose your secondary plan from the drop-down; then define your primary plan as the corequisite. In most instances, selecting the 'Any plan required' radio button should to the trick.
Now for the combined limits:
This is a 2-step process.
1: Define Combined Coverage Limits.
Choose your Optional life plan, and enter the following: Limit Amount -- 3,000,000; Rel. Operator : >=
REPEAT FOR BASIC PLAN AS WELL!!!!
When you save this, your resulting screen should read something like this : OPTL Optional Life Limit 3,000,000 0.000 >=
2:Define Combined Coverage Limit Expressions
Select your Optional life plan.
Enter the following in the table:
1.00 | Basic Life Plan
1.00 | Optional Life Plan
Again, do the same for the Basic plan.
the combination of these two steps creates the following equation:
3,000,000 >= 1* Basic Life + 1* Optional Life.
Feel free to ping me if you have questions. Contact details are on my business card.
Rob
Select your Optional life plan

Problem with JPanel and/or Thread

Hello all,
I have the following problem.
I have a JFrame containing to JPanels. The JPanels are placed
via BorderLayout.
JPanel #1 is for moving a little rectangle (setDoubleBufferd), it is
a self defined object extending JPanel.
The paint methon in JPanel #1 has been overwritten to do the drawings.
JPanel #2 contains 4 JButtons, but they have no effect at the
moment. It is an "original" JPanel.
The class extending JFrame implemented the interface Runnable and
is started in its own thread.
After starting the programm everthing looks fine.
But if I press a Button in the second JPanel this button is painted in
the top left corner of my frame. It changes if I press another button.
Any help would be appreciated.
Thanks.
Ralf

I have a JFrame containing to JPanels. The JPanels are
placed
via BorderLayout.The type of Layout does not seem to be relevant
>
JPanel #1 is for moving a little rectangle
(setDoubleBufferd), it is
a self defined object extending JPanel.
The paint methon in JPanel #1 has been overwritten to
do the drawings.
JPanel #2 contains 4 JButtons, but they have no effect
at the
moment. It is an "original" JPanel.
The class extending JFrame implemented the interface
Runnable and
is started in its own thread.
After starting the programm everthing looks fine.
But if I press a Button in the second JPanel this
button is painted in
the top left corner of my frame. It changes if I press
another button.
I noticed you solved this by painting the whole JFrame.
Yeh Form time to time I get this problem too......
Especially if the screen has gone blank - by going and having a cup of tea etc -
Text from one Panel would be drawn in another.. annoying
At first it was because I changed the state of some Swing Components
not from the Event Thread.
So make sure that your new Thread doesn't just blithely call repaint() or such like cos that leads to problems
but rather something like
SwingUtilities.invokeLater( new Runnable()
public void run()
MyComponent.repaint();
});However I still get this problem using JScrollPanes, and was able to fix it by using the slower backing store method for the JScrollPane
I could not see from my code how something on one JPanel can get drawn on another JPanel but it was happening.
Anyone who could totally enlighten me on this?

Problem with JFrame and busy/wait Cursor

Hi -- I'm trying to set a JFrame's cursor to be the busy cursor,
for the duration of some operation (usually just a few seconds).
I can get it to work in some situations, but not others.
Timing does seem to be an issue.
There are thousands of posts on the BugParade, but
in general Sun indicates this is not a bug. I just need
a work-around.
I've written a test program below to demonstrate the problem.
I have the problem on Solaris, running with both J2SE 1.3 and 1.4.
I have not tested on Windows yet.
When you run the following code, three JFrames will be opened,
each with the same 5 buttons. The first "F1" listens to its own
buttons, and works fine. The other two (F2 and F3) listen
to each other's buttons.
The "BUSY" button simply sets the cursor on its listener
to the busy cursor. The "DONE" button sets it to the
default cursor. These work fine.
The "SLEEP" button sets the cursor, sleeps for 3 seconds,
and sets it back. This does not work.
The "INVOKE LATER" button does the same thing,
except is uses invokeLater to sleep and set the
cursor back. This also does not work.
The "DELAY" button sleeps for 3 seconds (giving you
time to move the mouse into the other (listerner's)
window, and then it behaves just like the "SLEEP"
button. This works.
Any ideas would be appreciated, thanks.
-J
import java.awt.BorderLayout;
import java.awt.Cursor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class BusyFrameTest implements ActionListener
private static Cursor busy = Cursor.getPredefinedCursor (Cursor.WAIT_CURSOR);
private static Cursor done = Cursor.getDefaultCursor();
JFrame frame;
JButton[] buttons;
public BusyFrameTest (String title)
frame = new JFrame (title);
buttons = new JButton[5];
buttons[0] = new JButton ("BUSY");
buttons[1] = new JButton ("DONE");
buttons[2] = new JButton ("SLEEP");
buttons[3] = new JButton ("INVOKE LATER");
buttons[4] = new JButton ("DELAY");
JPanel buttonPanel = new JPanel();
for (int i = 0; i < buttons.length; i++)
buttonPanel.add (buttons);
frame.getContentPane().add (buttonPanel);
frame.pack();
frame.setVisible (true);
public void addListeners (ActionListener listener)
for (int i = 0; i < buttons.length; i++)
buttons[i].addActionListener (listener);
public void actionPerformed (ActionEvent e)
System.out.print (frame.getTitle() + ": " + e.getActionCommand());
if (e.getActionCommand().equals ("BUSY"))
frame.setCursor (busy);
else if (e.getActionCommand().equals ("DONE"))
frame.setCursor (done);
else if (e.getActionCommand().equals ("SLEEP"))
frame.setCursor (busy);
try { Thread.sleep (3000); } catch (Exception ex) { }
frame.setCursor (done);
System.out.print (" finished");
else if (e.getActionCommand().equals ("INVOKE LATER"))
frame.setCursor (busy);
SwingUtilities.invokeLater (thread);
else if (e.getActionCommand().equals ("DELAY"))
try { Thread.sleep (3000); } catch (Exception ex) { }
frame.setCursor (busy);
try { Thread.sleep (3000); } catch (Exception ex) { }
frame.setCursor (done);
System.out.print (" finished");
System.out.println();
Runnable thread = new Runnable()
public void run()
try { Thread.sleep (3000); } catch (Exception ex) { }
frame.setCursor (done);
System.out.println (" finished");
public static void main (String[] args)
BusyFrameTest f1 = new BusyFrameTest ("F1");
f1.addListeners (f1);
BusyFrameTest f2 = new BusyFrameTest ("F2");
BusyFrameTest f3 = new BusyFrameTest ("F3");
f2.addListeners (f3); // 2 listens to 3
f3.addListeners (f2); // 3 listens to 2

I've had the same problems with cursors and repaints in a swing application, and I was thinking of if I could use invokeLater, but I never got that far with it.
I still believe you would need a thread for the time consuming task, and that invokeLater is something you only need to use in a thread different from the event thread.

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