Hi Jose,
the size of your data area is not suitable for your application!
Your data area is filled with about 3000 perm pages and 3255 
temp pages! Each temp page consuming task will fail with error code
-904, -907 etc., because not enough space is available.

2004-03-12 11:35:21      0x71C WRN     6 Kernel_E  99 percent of data base 
occupied, 64 pages free\par
2004-03-12 11:35:21      0x71C WRN    41 Converte Force Rollback due to 
DB-Full. Tasks 28 holds to many temp pages #all p.= 6399 #all temp. p.= 3255 
#task temp p.= 1\par

I strongly recommand you to increase your data area size, i.e. you should add
some data volumes. Probably the log area is also too small.

BTW.
I am very confused by the CACHE_SIZE. You set the cache size to 30.000 pages (230 MB),
but your data area has only 50 MB. Why?

Regards,
Torsten

SAP Labs Berlin

-----Original Message-----
From: Jos� R�mulo El�as Contreras [mailto:[EMAIL PROTECTED] 
Sent: Samstag, 13. M�rz 2004 02:24
To: Schroeder, Alexander; [EMAIL PROTECTED]
Subject: RE: Question about data area


hi:

this is the part of the knldiag when the error occur:

2004-03-12 11:35:20      0x71C WRN     6 Kernel_E  80 percent of data base 
occupied, 1280 pages free\par
2004-03-12 11:35:21      0x71C WRN     6 Kernel_E  90 percent of data base 
occupied, 640 pages free\par
2004-03-12 11:35:21      0x71C         7 Kernel_E DB usage fell below 90 
percent, 640 pages free\par
2004-03-12 11:35:21      0x71C WRN     6 Kernel_E  90 percent of data base 
occupied, 640 pages free\par
2004-03-12 11:35:21      0x71C WRN     6 Kernel_E  95 percent of data base 
occupied, 320 pages free\par
2004-03-12 11:35:21      0x71C WRN     6 Kernel_E  96 percent of data base 
occupied, 256 pages free\par
2004-03-12 11:35:21      0x71C WRN     6 Kernel_E  97 percent of data base 
occupied, 192 pages free\par
2004-03-12 11:35:21      0x71C WRN     6 Kernel_E  98 percent of data base 
occupied, 128 pages free\par
2004-03-12 11:35:21      0x71C WRN     6 Kernel_E  99 percent of data base 
occupied, 64 pages free\par
2004-03-12 11:35:21      0x71C WRN    41 Converte Force Rollback due to 
DB-Full. Tasks 28 holds to many temp pages #all p.= 6399 #all temp. p.= 3255 
#task temp p.= 1\par
2004-03-12 11:35:21      0x71C WRN    41 Converte 610\par
2004-03-12 11:35:21      0x71C         7 Kernel_E DB usage fell below 95 
percent, 320 pages free\par
2004-03-12 11:35:21      0x71C         7 Kernel_E DB usage fell below 90 
percent, 640 pages free\par
2004-03-12 11:35:21      0x71C         7 Kernel_E DB usage fell below 80 
percent, 1280 pages free\par
2004-03-12 11:35:21      0x71C     19651 CONNECT  Connection released, 
T28\par
2004-03-12 11:35:21      0x71C     19633 CONNECT  Connect req. (T28, 
Node:'cora', PID:0)\par
2004-03-12 11:35:24      0x71C     19633 CONNECT  Connect req. (T33, 
Node:'', PID:2568)\par
2004-03-12 11:35:25      0x71C     19651 CONNECT  Connection released, 
T33\par
2004-03-12 11:35:30      0x71C     19633 CONNECT  Connect req. (T33, 
Node:'web_server', PID:0)\par
2004-03-12 11:35:31      0x71C     19633 CONNECT  Connect req. (T34, 
Node:'', PID:2568)\par
2004-03-12 11:35:31      0x71C     19651 CONNECT  Connection released, 
T34\par
2004-03-12 11:35:45      0x71C     19633 CONNECT  Connect req. (T34, 
Node:'', PID:2568)\par
2004-03-12 11:35:45      0x71C     19651 CONNECT  Connection released, 
T34\par
2004-03-12 11:35:58      0x71C     19633 CONNECT  Connect req. (T34, 
Node:'cora', PID:0)\par
2004-03-12 11:36:07      0x71C WRN     6 Kernel_E  80 percent of data base 
occupied, 1280 pages free\par
2004-03-12 11:36:07      0x71C         7 Kernel_E DB usage fell below 80 
percent, 1280 pages free\par
2004-03-12 11:36:33      0x71C     19633 CONNECT  Connect req. (T35,
Node:'web_server', PID:0)\par
2004-03-12 11:36:53      0x71C     19633 CONNECT  Connect req. (T36, 
Node:'cora', PID:0)\par
2004-03-12 11:37:15      0x71C     19633 CONNECT  Connect req. (T37, 
Node:'cora', PID:0)\par
2004-03-12 11:37:23      0x71C     19633 CONNECT  Connect req. (T38, 
Node:'', PID:2568)\par
2004-03-12 11:37:24      0x71C     19651 CONNECT  Connection released, 
T38\par
2004-03-12 11:37:36      0x71C WRN     6 Kernel_E  80 percent of data base 
occupied, 1280 pages free\par
2004-03-12 11:37:36      0x71C         7 Kernel_E DB usage fell below 80 
percent, 1280 pages free\par
2004-03-12 11:37:36      0x71C WRN     6 Kernel_E  80 percent of data base 
occupied, 1280 pages free\par
2004-03-12 11:37:36      0x71C         7 Kernel_E DB usage fell below 80 
percent, 1280 pages free\par
2004-03-12 11:37:36      0x71C WRN     6 Kernel_E  80 percent of data base 
occupied, 1280 pages free\par
2004-03-12 11:37:36      0x71C         7 Kernel_E DB usage fell below 80 
percent, 1280 pages free\par
2004-03-12 11:37:58      0x71C     19633 CONNECT  Connect req. (T38, 
Node:'', PID:2568)\par
2004-03-12 11:37:58      0x71C     19651 CONNECT  Connection released, 
T38\par
2004-03-12 11:37:59      0x71C     19633 CONNECT  Connect req. (T38, 
Node:'web_server', PID:0)\par

The node='' is the host in who is installed DBM GUI.
The node='webserver' is the crystal reports servlet.
The node='cora' is the host where the tomcat is running.

The data cache information hit rate is:
DATA           100%
CATALOG    57%
SEQUENCE    0%

Some parameters are:
CACHE_SIZE       = 30000
MAXLOCKS         = 8920
MAXUSERTASKS = 200

The DATA AREA has a total space of 51200 KB
The LOG AREA has a total space of 10224 KB

What can I have to chage to resolve this error?

thanks
Jos� R�mulo El�as Contreras
Ingeniero en Sistemas Computacionales
Guadalajara, Jalisco
Tel: (33) 3126-47-81 y 3126-48-13
Cel: (311) 910-50-59




>From: "Schroeder, Alexander" <[EMAIL PROTECTED]>
>To: 'Jos� R�mulo El�as Contreras' <[EMAIL PROTECTED]>,   
>[EMAIL PROTECTED]
>Subject: RE: Question about data area
>Date: Fri, 12 Mar 2004 10:44:38 +0100
>
>Hello Jose,
>
>could it be that a timeout happens? The error simply indicates that the 
>session
>is 'lost' at the TCP/IP level.
>
>You may also look into knldiag/knldiag.err if you see something 'suspicios' 
>there,
>and/or post the portion the knldiag to the list.
>
>Regards
>
>Alexander Schr�der
>SAP DB, SAP Labs Berlin
>
> > -----Original Message-----
> > From: Jos� R�mulo El�as Contreras [mailto:[EMAIL PROTECTED]
> > Sent: Thursday, March 11, 2004 9:24 PM
> > To: [EMAIL PROTECTED]
> > Subject: Question about data area
> >
> >
> > I have an application running in Apache Tomcat whith
> > connection to SAPDB.
> > When the used space of the SAPDB data area is around 82% my
> > application
> > display this error:
> >
> > com.sap.dbtech.jdbc.exceptions.ConnectionException: [-1]
> > Communication Error
> >        at
> > com.sap.dbtech.jdbc.ConnectionSapDB.execute(ConnectionSapDB.java:418)
> >        at
> > com.sap.dbtech.jdbc.ConnectionSapDB.execute(ConnectionSapDB.java:325)
> >        at
> > com.sap.dbtech.jdbc.StatementSapDB.sendCommand(StatementSapDB.
> > java:681)
> >        at
> > com.sap.dbtech.jdbc.StatementSapDB.sendSQL(StatementSapDB.java:720)
> >        at
> > com.sap.dbtech.jdbc.StatementSapDB.execute(StatementSapDB.java:219)
> >        at
> > com.sap.dbtech.jdbc.StatementSapDB.executeQuery(StatementSapDB
> > .java:350)....
> >
> > and I can't work more with the application, i have to restart
> > it to work one
> > more time.
> >
> > Why does my application display this error if the SAPDB data
> > area is not in
> > a full state?
> >
> > It is urgent.
> > Thanks.
> >
> >
> > Jos� R�mulo El�as Contreras
> > Ingeniero en Sistemas Computacionales
> > Guadalajara, Jalisco
> > Tel: (33) 3126-47-81 y 3126-48-13
> > Cel: (311) 910-50-59
> >
> > _________________________________________________________________
> > MSN. M�s �til Cada D�a  http://www.msn.es/intmap/
> >
> >
> > --
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