Redolog and checkpoint problems
Hi!
We are working on Oracle 10.2.0.3.0 Standard Edition on a Windows 2003 Server platform.
We are facing the following two problems:
Problem 1:
Thread 1 cannot allocate new log, sequence 953
Checkpoint not complete
Current log# 4 seq# 952 mem# 0: R:\ORANT\ORADATA\ITBMED4\REDOLOG\REDO04A.LOG
Current log# 4 seq# 952 mem# 1: S:\ORANT\ORADATA\ITBMED4\REDOLOG\REDO04B.LOG
Thu Jun 07 07:11:53 2007
Thread 1 advanced to log sequence 953
Current log# 1 seq# 953 mem# 0: R:\ORANT\ORADATA\ITBMED4\REDOLOG\REDO01A.LOG
Current log# 1 seq# 953 mem# 1: S:\ORANT\ORADATA\ITBMED4\REDOLOG\REDO01B.LOG
The database is not very active and there are 4 redo log files each of 50 MB in size. We have implemented this at several customers but only one customer gets this error.
After an 'ALTER SYSTEM CHECKPOINT' followed by a log switch, the error disappears from the alert log but then again appears after a few more log switches.
Other points of concern are that the archived logs are not the same size as the redo logs (before we did the log switch exercise).
The layout on the server is:
Disk 1: Oracle installation and data files
Disk 2: redo log files
Disk 3: redo log files
Disk 4: Archived logs
What is the solution to this problem?
Problem 2:
The second problem is that the OS timestamp of the redo log files does not change. It remains the same as the date on which we migrated the database from 8i to 10g.
Regards,
Aniruddha
Yes, I had a look at this Metalink note. I reproduce the relevant information for discussion below:
This message indicates that Oracle wants to reuse a redo log file, but
the current checkpoint position is still in that log. In this case, Oracle must
wait until the checkpoint position passes that log. Because the
incremental checkpoint target never lags the current log tail by more than 90%
of the smallest log file size, this situation may be encountered if DBWR writes
too slowly, or if a log switch happens before the log is completely full,
or if log file sizes are too small.
I do not feel that this is related to the size of the log file as we do not get this problem at any other customer which have larger activity. Under what conditions can the log switch happen before the log is completely full other than purposefully switching the log file?
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Checkpoint scn in redolog and controlfile
Hi
The checkpoint scn in datafile headers are updated after checkpoint.
How about redologs and controlfile?
As far I read from the docs
scn's are written to redo logs continuously (every commit), it should also stored in controlfile continuesly(every commit) so that controlfile will know where redochain ends ..
Is that right?Pascal Nouma wrote:
Yes Aman, I read it.
As I said,
I learned that scn is incremented in controlfile and datafile after checkpoint.
However still have doubts about redologs..No, that's what my doubt is. If you have read the thread thoroughly, it explains that in the redo logs, there is open/close SCN. And I have shown its behavior too there. SCN is nothing but a time stamp(see Hans's reply also for the explanation, in the thread too , I have posted one) and as redologs contain nothing but transactions, each one would be having its starting and ending SCN(the article posted by Hans goes into great length to show it) . The files would have the high and low scn. I would suggest that you reread the thread one more time and come back with a more detailed question. I am not still sure that what is your doubt regarging the scn in the redologs. Control file's mechanism or data files's mechanism are different as the writes happen at certain events while redo logs are constantly being fliushed with the minimum frequency of 3seconds. So things are not really alike and its not good to compare bit by bit all the aspects in every file IMHO.
HTH
Aman.... -
Scn in redologs and controlfile
Hi
The checkpoint scn in datafile headers are updated after checkpoint.
How about redologs and controlfile?
As far I read from the docs
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Is that right?Hi,
The checkpoint scn in datafile headers are updated after checkpoint.
Yes. By CKPT process.
scn's are written to redo logs continuously
Yes, by LGWR every COMMIT IMMEDIATE.
+ it should also stored in controlfile continuesly(every commit) so that controlfile will know where redochain ends ..+
Even if it is in controlfile then it is NOT updated every commit.
Bartek -
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I have installed the NMAS modules from Border Manager 3.8 onto a Netware 6 SP3 box. I installed per TID 10078616 and can authenicate from my W2K workstation fine.
I am now trying to authenicate from a Nortel switch and a VPN from a checkpoint firewall. So far I have installed all of the login methods and I still get an unknown RADIUS client on the RADIUS server, when loging in from the Nortel switch. I have not tried to authenicate from the checkpoint firewall yet.
Does anyone have pointers as to the configuration to use the RADIUS server with Nortel or Checkpoint or a pointer to a technical description of the various login methods?
JohnJohn,
I have a very similar problem with our 3com switches, can you give me more
details of what you did to get it working?
Thanks a lot,
Matt Hudson
(CNE6.5)
"John Curran" <[email protected]> wrote in message
news:[email protected]...
> Thank you very much, Jordack. The instructions were clear and concise.
>
> We go the Checkpoint firewall to authenicate VPN's with the RADIUS server.
>
> Also, I got the information from Nortel to allow authenication. I had to
> set up the Radius server to allow Service-Type Administrative and
> Service-Type NAS-Prompt. Then I had to go into each user and set up
> one of the service types.
>
> Thanks for your help.
>
> John
>
>
> >>> Jordack<[email protected]> 01/26 9:36 AM >>>
> I uploaded a quick draft guide. It should help.
>
> http://www.thiscorner.com/guides/cp-radius.pdf
>
> Jordack
>
> "John Curran" <[email protected]> wrote in message
> news:[email protected]...
> > Thanks for the input. I will get that book.
> >
> > With the Nortel switch it is curious. I had forgotten to add the switch
> > to the client list. When I did, the radius server accepts the
> > authenication and sends an accpt message, but the Nortel switch says
> > access denied. I put a Sniffer on the link and the accept message looks
> > just like any other accept message (follows RFC 2865). I have a feeling
> > Nortel does not follow RFC 2865 or does not like the authenication ID
for
> > some reason. I guess I will have to work more with Nortel to resolve
that
> > one.
> >
> > John
> >
> >
> >>>> Jordack<[email protected]> 01/26 7:53 AM >>>
> > Sorry about not responding, I saw your post and meant to dig up my
notes
> > and respond.
> >
> > I don't know much about the Nortel stuff.
> >
> > Make sure you have added the IP address of your Nortel and Checkpoint
box
> > to
> > the 'Clients' page of the 'Radius:Dial access System". The DAS will
only
> > except connections from known clients. From the sounds of it that might
> > be
> > the issue.
> >
> > For the CheckPoint Setup stuff there is a few things you will need to do
> > on
> > the Checkpoint Box.
> >
> > I used this book http://www.syngress.com/catalog/chapter.cfm?pid=25903
and
> > Everything worked.
> >
> > I was working on a small guide for CheckPoint radius but got pulled to
> > other
> > things. If I get it finished Ill post it
> >
> >
> > "John Curran" <[email protected]> wrote in message
> > news:[email protected]...
> >>I have installed the NMAS modules from Border Manager 3.8 onto a Netware
6
> >>SP3 box. I installed per TID 10078616 and can authenicate from my W2K
> >>workstation fine.
> >>
> >> I am now trying to authenicate from a Nortel switch and a VPN from a
> >> checkpoint firewall. So far I have installed all of the login methods
> >> and
> >> I still get an unknown RADIUS client on the RADIUS server, when loging
in
> >> from the Nortel switch. I have not tried to authenicate from the
> >> checkpoint firewall yet.
> >>
> >> Does anyone have pointers as to the configuration to use the RADIUS
> >> server
> >> with Nortel or Checkpoint or a pointer to a technical description of
the
> >> various login methods?
> >>
> >> John
> >>
> >
> >
> >
> >
>
>
>
> -
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I have the following setup
RT1--RT2
|______|
SW1--SW2
|______|
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I am making code to try to make a game and my problem is that my code......
I am making code to try to make a game and my problem is that my code
will not let it change the hit everytime so im getting the first guy to hit 1 then next hits 8 and so on and always repeats.
Another problem is that I would like it to attack with out me telling it how much times to attack. I am using Object oriented programming.
Here is the code for my objects:
import java.lang.*;
import java.io.*;
import java.net.*;
import java.util.*;
import java.util.Random;
import static java.lang.Math.*;
import java.awt.*;
import java.awt.color.*;
class rockCrab {
//Wounding formula
double sL = 70; // my Strength Level
double bP = 1; // bonus for prayer (is 1 times prayer bonus)
double aB = 0; // equipment stats
double eS = (sL * bP) + 3; // effective strength
double bD = floor(1.3 + (eS/10) + (aB/80) + ((eS*aB)/640)); // my base damage
//Attack formula
double aL = 50; // my Attack Level
double eD = 1; // enemy's Defence
double eA = aL / eD; // effective Attack
double eB = 0; // equipment bonus'
double bA = ((eA/10) * (eB/10)); // base attack
//The hit formula
double fA = random() * bA;
double fH = random() * bD;
double done = rint(fH - fA);
//health formula
double health = floor(10 + sL/10 * aL/10);
rockCrab() {
void attack() {
health = floor(10 + sL/10 * aL/10);
double done = rint(fH - fA);
fA = random() * bA;
fH = random() * bD;
done = rint(fH - fA);
System.out.println("Rockcrab hit" +done);
import java.lang.*;
import java.io.*;
import java.net.*;
import java.util.*;
import java.util.Random;
import static java.lang.Math.*;
import java.awt.*;
import java.awt.color.*;
class self {
//Wounding formula
double sL = 1; // my Strength Level
double bP = 1; // bonus for prayer (is 1 times prayer bonus)
double aB = 0; // equipment stats
double eS = (sL * bP) + 3; // effective strength
double bD = floor(1.3 + (eS/10) + (aB/80) + ((eS*aB)/640)); // my base damage
//Attack formula
double aL = 1; // my Attack Level
double eD = 1; // enemy's Defence
double eA = aL / eD; // effective Attack
double eB = 0; // equipment bonus'
double bA = ((eA/10) * (eB/10)); // base attack
//The hit formula
double fA = random() * bA;
double fH = random() * bD;
double done = rint(fH - fA);
//health formula
double health = floor(10 + sL/10 * aL/10);
self() {
void attack() {
health = floor(10 + sL/10 * aL/10);
fA = random() * bA;
fH = random() * bD;
done = rint(fH - fA);
System.out.println("You hit" +done);
}Here is the main code that writes what the objects do:
class fight {
public static void main(String[] args) {
self instance1 = new self();
rockCrab instance2 = new rockCrab();
instance2.health = instance2.health - instance1.done;
System.out.println("You hit: " +instance1.done);
System.out.println("rockCrabs health: " + instance2.health);
instance1.health = instance1.health - instance2.done;
System.out.println("RockCrab hit: " +instance2.done);
System.out.println("rockCrabs health: " + instance1.health);
instance2.health = instance2.health - instance1.done;
System.out.println("You hit: " +instance1.done);
System.out.println("rockCrabs health: " + instance2.health);
instance1.health = instance1.health - instance2.done;
System.out.println("RockCrab hit: " +instance2.done);
System.out.println("rockCrabs health: " + instance1.health);
instance2.health = instance2.health - instance1.done;
System.out.println("You hit: " +instance1.done);
System.out.println("rockCrabs health: " + instance2.health);
instance1.health = instance1.health - instance2.done;
System.out.println("RockCrab hit: " +instance2.done);
System.out.println("rockCrabs health: " + instance1.health);
instance2.health = instance2.health - instance1.done;
System.out.println("You hit: " +instance1.done);
System.out.println("rockCrabs health: " + instance2.health);
instance1.health = instance1.health - instance2.done;
System.out.println("RockCrab hit: " +instance2.done);
System.out.println("rockCrabs health: " + instance1.health);
}when the code is run it says something like this:
you hit 1
RockCrabs health is 9
RockCrab hit 7
your health is 38
you hit 1
RockCrabs health is 8
RockCrab hit 7
your health is 31
you hit 1
RockCrabs health is 7
RockCrab hit 7
your health is 24
you hit 1
RockCrabs health is 6
RockCrab hit 7
your health is 17
my point is whatever some one hits it always repeats that
my expected output would have to be something like
you hit 1
RockCrabs health is 9
RockCrab hit 9
your health is 37
you hit 3
RockCrabs health is 6
RockCrab hit 4
your health is 33
you hit 2
RockCrabs health is 4
RockCrab hit 7
your health is 26
you hit 3
RockCrabs health is 1
RockCrab hit 6
your health is 20
Edited by: rade134 on Jun 4, 2009 10:58 AM[_Crosspost_|http://forums.sun.com/thread.jspa?threadID=5390217] I'm locking.
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Once device displays boot information, release keys.
Soft Reset
Press the Power key.
Touch Power off.
Touch OK.
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or
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Have you read this post written by another forum member?
The Sad iPod icon.
However, as your iPod was purchased on Boxing Day, why not get it serviced under the warranty?
You can arrange online service here.
Service request.
Or if an Apple store is near you, take it there and have them check your iPod.
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It sounds like you are having an issue with activating your iMessage app on your iPad. An article outlining some troubleshooting steps for this issue can be found here:
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http://support.apple.com/kb/ts4268
Thanks for using the Apple Support Communities. Have a good one!
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Hello
Thanks for using Apple Support Communities.
For more information on this, take a look at:
iTunes repeatedly prompts to authorize computer to play iTunes Store purchases
http://support.apple.com/kb/ts1389
Best of luck,
Mario
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