Hello,

I am experiencing issue when doing a test of OS/DB migration for APO from Oracle on HP-UX to Oracle on Linux X64 (RHEL6).

The migration of ABAP went without trouble, however I am unable to install liveCache (MaxDB) on RHEL 6.0.

According to note 916649, SCM 5.1 with liveCache 7.7.06.22 should be supported:

The following versions constitute the minimum requirement for the use of SAP liveCache on Red Hat 6:

SCM 5.1      : SAP LC/LCAPPS  5.1 SP25, SAP liveCache 7.7.06.22

I have used the instalaltion package LC770624A6028_2-20002022.SAR to update the LC version, the update of software went through, but I am unable to start the x_server.

It always core-dumped for segmentation fault, resp. the part that core dumped is vserver. I am not even able to check the version of vserver with vserver -V, it immediately core dumps. I am sure I have the right version (CPU version etc), also all maxdb verification tools returned no error at all.

The OS parametrization should be according to all the notes concerned, at least the OS colleagues confirmed that.

Thank you any suggestion,

Branislav GREGER

Hi,

I have installed SAP Netweaver developer Studio 6.40 which installed MAXDB database also. Due to some reason I had to unistall the trial version of Developer studio, in this process developer studio got unistalled but not MAXDB.

*----

I use Add/Remove programs and uninstall MaxDB. I get the messages like this.....

Start uninstallation now (y/n) : Y (resoponse)

then message displays

found instance of J2E, cannot remove package..first remove all instances...

*----

I have stopped all the services, even then Iam getting such error message. How do I uninstall?

Help needed.

-Suresh

Hi All ,

I am trying to install SAP  trial version . While installation of MAXDB serve , I am getting an error " Some database application might still be running"

I dont have any other database installed on my system .

Kindly reply what can be the possible reason for this .

Thanks n Regards

Manik L Dhakate

I get an error trying to install

maxdb_all_win_64bit_x86_64_7_9_08_26

on windows 8 Pro Version 6.2.9200

Here is the log :

Hello all!

Today SAP released the new patch for SAP MAXDB: 7.9.08.26.

But when I added it to Download Basket and then download it I get following error:

"You are not authorized to download selected object"

Why SAP release public something and it is impossible to download?

When customers can download the latest patch for SAP MaxDB and why older versions are not also downloadable?

Best Regards,

Jaroslaw

The maxDB database is not starting,

When I type

dbmcli -n mgiusdgrc1 -d CME -u superdba,<passwd> db_online, I get the following error.

Error! Connection failed to node <hostname> for database CME:

-24700, ERR_DBMSRV_NOSTART: Could not start DBM Server.

-24832, ERR_SHMNOTAVAILABLE: Shared memory not available.

-24827, ERR_SHMALLOCFAILED: ID E:\sapdb\data\wrk\CME.dbm.shi, requested size 260010,

Opening shared memory file E:\sapdb\data\wrk\CME.dbm.shi failed, rc = 5.

I tried to rename the file CME.dbm.shi, but it did not work.

Currently we have 8 GB of physical memory RAM allocated on Wndows 2008 Server and paging size specified is 16 GB.

1- Can anyone help in resolving the above shared memory error?

2- Are there any logfiles and specific error messages that I need to check, to resolve the MaxDB startup issue error.

Thanks in advance.

Hello,

i have installed a new ERP 6.06 SAP System on MaxDB 7.9/Sles 11 Linux. After successful installation i have tested the database connection.

The database connection failed. What could i do to solve the problem?

SAP transaction DB59 Test:

Result:

p01_P01_02 (p01 )

SAP Kernel Release : 720_EXT_REL

SAP Kernel Patch : 401

DBMRFC Release : 7.9.07.14

DBMCLI Release : 7.9.07.14

DBSL Release : 720.00

DBSL Patch : 421

SQLDBC Version : 7.8.02.17

SQLDBC Runtime : 7.9.07.14

1.DBSL Library Availability -Connection test successful

2.Client Software Availability -Connection test successful

3.Execute an external operating system command (DBMCLI) -Connection test successful

4.Determine status using SQL connection -Error in connection test

5.Test the SQL connection (Native SQL at CON_NAME) -Connection test successful

Report: RSSDBCHECKDBMRFC

  Main Analysis

       SMGW - Checking existence and correctness of registered client

       WARNING: dbmrfc@sapdb not registered. Trying to start the SAPDB_DBM_DAEMON

       SM59 - Checking existence and connection of RFC destinations SAPDB_DBM and SAPDB_DBM_DAEMON

       SAPDB_DBM exists

       SAPDB_DBM_DAEMON exists

       SAPDB_DBM connection successful

       WARNING: SAPDB_DBM_DAEMON connection not successful. Trying to start SAPDB_DBM_DAEMON

       SM59 - Checks were successful

       CONN - Determining database state via TCP/IP connection SAPDB_DBM and SAPDB_DBM_DAEMON

  DBM_EXECUTE_SDB error: dbm_execute_error

  Name and Server     : P01 - p01

  Function            : DBM_EXECUTE

  Command             : db_state

  Error               : DBM Error

  Return Code         : -24941

  Error Message       : ERR_NEEDLOGON: DBM server logon required

  ERR

  -24941,ERR_NEEDLOGON: DBM server logon required

       ERROR: Error in determination via command mode "dbmrfc db_state"

  DBM_EXECUTE_SDB: dbm_execute_error

  Name and Server     : P01 - p01

  Function            : DBM_EXECUTE

  Command             : db_state

  Error               : DBM Error

  Return Code         : -24941

  Error Message       : ERR_NEEDLOGON: DBM server logon required

  ERR

  -24941,ERR_NEEDLOGON: DBM server logon required

       ERROR: Error in determination via session mode "dbmrfc db_state"

       CONN - Check was not successful

       TP - Get connection information and existence of program

       Connection information used by DBMRFC:

       dbnode: p01 ; dbname: P01 ; sysid: P01 ; conn: P01 ; profile: no_longer_used

       Transport profile is not specified, trying to determine it

       ERROR in TMS_CFG_READ_LOCAL_CONFIG:  tms_is_not_configured

       ERROR in TMS_CFG_READ_LOCAL_CONFIG: Could not get transport domain.

       Executing command: dbmcli -d P01 -n p01 -tpp no_longer_used -tpi P01 -tpc P01 db_state

       TP - Checks were successful

Detail Analysis

       Checking MAXDB Version and searching independent program path via SDBREGVIEW

       Independent program path exists: /sapdb/programs

       Client installation path exists: /sapdb/clients/P01

       Checking paths in environment variables

       Checking correctness of environment variable "path"

       /sapdb/programs/bin  exists

       ERROR: Set the following path before all other paths in environment variable: /sapdb/clients/P01/bin

       /usr/sap/P01/DVEBMGS02/exe (DIR_EXECUTABLE) exists

       Checking correctness of environment variable "ld_library_path"

       /usr/sap/P01/DVEBMGS02/exe (DIR_EXECUTABLE) exists

       ERROR: Set the following path before all other paths in environment variable: /sapdb/programs/lib

       ERROR: Set the following path before all other paths in environment variable: /sapdb/clients/P01/lib

       Error found in one step

       Checking existence of necessary libraries in /sapdb/programs/lib

       libicudata.so.<version> exists

       libicui18n.so.<version> exists

       libicuuc.so.<version> exists

       libsapni.so exists

       WARNING: libsapu16.so was not found

       Check your MAXDB installation

       Checking existence of necessary executables

       tp exists in /usr/sap/P01/DVEBMGS02/exe

       sapdbmrfc exists in /usr/sap/P01/DVEBMGS02/exe

       dbmrfc exists in /sapdb/programs/bin

       sdbregview exists in /sapdb/programs/bin

       sdbverify exists in /sapdb/programs/bin

       dbmcli exists in /sapdb/programs/bin

Xuser test on OS:

p01:p01adm 57> dbmcli -U c

dbmcli on p01 : P01>exit

OK

---

p01:p01adm 58> dbmcli -U w

dbmcli on p01 : P01>exit

OK

---

p01:p01adm 59> dbmcli -d P01 -u control,<password>

dbmcli on P01>exit

OK

---

p01:p01adm 59> dbmcli -d P01 -u superdba,<password>

dbmcli on P01>exit

OK

---

p01:p01adm 61> R3trans -d

This is R3trans version 6.23 (release 720 - 31.10.12 - 20:12:06).

unicode enabled version

R3trans finished (0000).

p01:p01adm 62> R3trans -x

This is R3trans version 6.23 (release 720 - 31.10.12 - 20:12:06).

unicode enabled version

R3trans finished (0000).

p01:p01adm 63>

p01:p01adm 58> dbmcli -d P01 -U c db_enum

OK

P01     /sapdb/P01/db                           7.9.07.14       fast    running

P01     /sapdb/P01/db                           7.9.07.14       quick   offline

P01     /sapdb/P01/db                           7.9.07.14       slow    offline

P01     /sapdb/P01/db                           7.9.07.14       test    offline

p01:p01adm 59>

p01:p01adm 60> x_server start

2013-10-19 12:17:28 30139 44640 INF  12916          Found running XServer on port 7200

2013-10-19 12:17:28 30139 44640 INF  13011            version 'U64/LIX86 7.9.07   Build 014-123-244-287'

2013-10-19 12:17:28 30139 44640 INF  13010            installation P01  - path: /sapdb/P01/db

2013-10-19 12:17:28 30141 86336 ERR  11931 XSERVER  Open update pipe '/sapdb/data/fifo/xserver_p01_update' failed:No such file or directory

2013-10-19 12:17:28 30141 86336 INF  12916          Found running sdbgloballistener on port 7210

2013-10-19 12:17:28 30141 86336 INF  13011            version 'UNKNOWN'

2013-10-19 12:17:28 30141 86336 ERR  11941 XSERVER  Version string conversion failed:expected format %-9.9s %-8.8s Build %-3.3s-%-11.11s

p01:p01adm 60>

p01:p01adm 60> cd /sapdb/data/fifo/

p01:p01adm 61> ls -altr

total 8

drwxrwxr-x 12 sdb sdba 4096 Oct 18 18:30 ..

prw-rw----  1 sdb sdba    0 Oct 19 12:05 xserver_p01_7200_logger

prw--w--w-  1 sdb sdba    0 Oct 19 12:05 P01

prw-rw----  1 sdb sdba    0 Oct 19 12:17 xserver_p01_7200_update

drwxrwxr-x  2 sdb sdba 4096 Oct 19 12:17 .

p01:p01adm 62>

There´s no entry with "xserver_p01_update"

How can i create this entry?

I have no idea to solved this problem. Who can help?

Best regards

Dennis

Hello, please I need your help to solve this problem. I've upgraded

MAXDB from 7.7.04.28 to 7.7.7.28. Then we tried by mistake to recover a DB

backup with Max db database studio and it finished with error. Then we

can't start the database instance, here is the /home/erladm/startdb.log:Checking ADA db Database

-

Database is not available via R3trans

Running /usr/sap/ERL/SYS/exe/run/startdb

Trying to start database ...

Log file: /home/erladm/startdb.log

Database start failed

DB startup failed

ADP-ERL:erladm 41> tail -100 /home/erladm/startdb.log

-

Mon Feb 28 17:32:13 ARST 2011

LOGFILE FOR STARTING DATABASE

Trying to start database ...

-

Mon Feb 28 17:32:13 ARST 2011

Checking required environment variables

SAPSYSTEMNAME is >ERL<

Start database with xuserkey >c<

-

Mon Feb 28 17:32:13 ARST 2011

Connect to the database to check the database state

dbmcli: connect check finished with return code: 0

Database not available

-

Mon Feb 28 17:32:14 ARST 2011

Starting XServer

12798 NISERVER NI support started.

WNG 12453 NISSLSRV NISSL Init: SSL: Could not locate ticket file

12902 XSERVER started, 'U64/LIX86 7.7.07 Build 028-123-241-377'

-

Mon Feb 28 17:32:15 ARST 2011

Starting database

Starting Database Instance...

OK

Opening Database...

ERR

-24988,ERR_SQL: SQL error

-9407,System error: unexpected error

3,Database state: OFFLINE

Internal errorcode, Error code 6433 "system_error"

20025,ACTIVATE is missing

-

Mon Feb 28 17:32:23 ARST 2011

Connect to the database to verify the database is now open

dbmcli check finished with return code: 0

Database start failed

I'll appreciate your quickly response.

Thank you.

Hello,

I'm writing back following an old thread in 2009 on this forum, related to a problem with MaxDB and "AK Cachedirectory full" problems. You can find the previous thread here: What can we so against Error "-9400 AK Cachedirectory full"?

The problem was actually never resolved: we could more or less live with it, and we managed to reduce it for a while, but we are having that problem again almost every day now. We actually fixed various points since 2009 and our system has changed quite a lot.

We use MaxDB 7.8.02 (BUILD 038-121-249-252) with the JDBC Driver sapdbc-7.6.09_000-000-010-635.jar. Note that we don't use MaxDB in a SAP environment as we have our own business application.

Following some very helpful feedback from Lars Breddemann, we fixed various points in our system: for example, result sets were not always properly closed, this is now done immediately after the query has been executed and the result rows were read. We also follow the advise from Elke Zietlow to always close a connection and its associated prepared statements when the error occurs. This also helps in most cases, but sometimes when the error occurs, even closing the connection and its prepared statements does not help and the problem "escalates" until we have to restart the db to fix the problem.

Back to the discussion in 2009, I used the two statements given by Lars to monitor the catalog cache usage: when I run this multiple times, I see that all result sets are properly closed as I only see the ones currently being used and they disappear.

One important point is that our java application keeps many prepared statements open in a cache, to have them ready to be reused. We can have up to 10'000 prepared statements open, with up to 100 jdbc connections. Actually the AK Cachedirectory full problem happens sometimes very soon after we restart our system and db, so at that time the number of prepared statements can be very low, which seems to indicate that the number of prepared statements being open is not necessarily linked to the problem.

Also in the discussion in 2009, Lars mentioned the fact that we use prepared statements of the type TYPE_SCROLL_INSENSITIVE and he was asking if we could not use TYPE_FORWARD_ONLY. Would this really make a difference? We need the TYPE_SCROLL_INSENSITIVE in many cases because we use some iterators to scroll up and down the result sets, so using TYPE_FORWARD_ONLY would require changing quite some code. I also saw in the MaxDB code that using the type TYPE_SCROLL_INSENSITIVE adds the string "FOR REUSE" to the sql statement, what does it exactly mean?

Amy help to fix that problem would be greatly appreciated.

Christophe

Hi All,

I am upgrading to Content Server 6.50 on MaxDB 7.9. This has required a new installation on Windows 2012 with a restore of the SDB database from the 6.40 MaxDB 7.5 system. The URL's have successfully tested, however the OAC0 and CSADMIN transactions are not connecting and require a user and a password.

I have read through message Anyone familiar with the XUSER and MAXDB? and found that there is no registry entry "USER" under HKEY_LOCAL_MACHINE\SOFTWARE\SAP\SAP DBtech

The error I receive is "FATAL: Close xuser entry failed: could not write USER data [1307]"

If I need to manually create the USER registry key, please could some one either provide me with the details or point me in the direction of where I might find them. I am not permitted to action them due to company policy so do need specifics so I can raise a call to have a windows engineer create it for me.

Many thanks.

Maria

Max DB backup taking more time to completion..How to check backup completion in percentage and what are the basic logs need to check for troubleshooting  in Max DB.

Regards,

Prajith Ev

Hi,

I have installed SAP Netweaver developer Studio 6.40 which installed MAXDB database also. Due to some reason I had to unistall the trial version of Developer studio, in this process developer studio got unistalled but not MAXDB.

*----

I use Add/Remove programs and uninstall MaxDB. I get the messages like this.....

Start uninstallation now (y/n) : Y (resoponse)

then message displays

found instance of J2E, cannot remove package..first remove all instances...

*----

I have stopped all the services, even then Iam getting such error message. How do I uninstall?

Help needed.

-Suresh

Specifically maxdb_all_win_64bit_x86_64_7_9_08_26 on windows 8 Pro Version 6.2.9200

Hello,

I'm looking for some hints, which can help me to analyse the disk acitvity for a single "Left Outer Join" SQL statement. Unfortunately, the business is not able to enter an additional Where - clause.

Our database (version: 7.9.08.14 / OLTP)  is running on a virtual Windows 2008 R2 Server (ESXi 5.1.0). All datavolumes (50 pieces) are on a single LUN.

If I use the "x_cons <DB> show active 1 25", I get this reponse from, where T128 is my ID. During the whole runtime of the statement, there is no high cpu (Task Manager) or high disk activity (Resource Monitor of Windows). If I copy a file (3,5 GB) on the LUN, the performance is OK.

SERVERDB: xxx

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0     27        39077695(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T54    9 0x1A60 User      6884* IO Wait (R)             0     15        121292233(s)

T128  11 0x13DC User      1240* IO Wait (R)             0     24        39077820(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T35    8 0x1770 User      1812* IO Wait (R)             0     26        32578072(s)

T54    9 0x1A60 User      6884* IO Wait (R)             0     47        121292754(s)

T128  11 0x13DC User      1240* IO Wait (R)             0      9        39078040(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T54    9 0x1A60 User      6884* IO Wait (R)             0     20        121292947(s)

T128  11 0x13DC User      1240* IO Wait (R)             0     26        39078296(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0     29        39078437(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0     13        39078563(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0      4        39078667(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0     20        39078759(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0      8        39078856(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0      3        39079019(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0     37        39079176(s)

ID   UKT  Win   TASK       APPL Current        Timeout/ Region     Wait

          tid   type        pid state          Priority cnt try    item

T128  11 0x13DC User      1240* IO Wait (R)             0     11        39079282(s)

I know there are many components, but maybe with some hints I'm able to exclude a one or more component(s). I already check the good scripts from http://maxdb.sap.com/traning, but unfortunately without success.

Thank you!

best regards

Lukas Meusburger

I've installed maxdb_studio_win_64bit_x86_64_7_9_08_18 on windows 8 Pro Version 6.2.9200. The Java runtime is 32bit jre1.8.0_25. Database studion doesn't run - there is no error message. The xServer services are all running. I've verified the installation using the installation manager.

Is there any way to diagnose what's wrong - any log or trace file I could look at?

Hi,

I have installed SAP Netweaver developer Studio 6.40 which installed MAXDB database also. Due to some reason I had to unistall the trial version of Developer studio, in this process developer studio got unistalled but not MAXDB.

*----

I use Add/Remove programs and uninstall MaxDB. I get the messages like this.....

Start uninstallation now (y/n) : Y (resoponse)

then message displays

found instance of J2E, cannot remove package..first remove all instances...

*----

I have stopped all the services, even then Iam getting such error message. How do I uninstall?

Help needed.

-Suresh

I get an error trying to install

maxdb_all_win_64bit_x86_64_7_9_08_26

on windows 8 Pro Version 6.2.9200

Here is the log :

Hello,

I'm writing back following an old thread in 2009 on this forum, related to a problem with MaxDB and "AK Cachedirectory full" problems. You can find the previous thread here: What can we so against Error "-9400 AK Cachedirectory full"?

The problem was actually never resolved: we could more or less live with it, and we managed to reduce it for a while, but we are having that problem again almost every day now. We actually fixed various points since 2009 and our system has changed quite a lot.

We use MaxDB 7.8.02 (BUILD 038-121-249-252) with the JDBC Driver sapdbc-7.6.09_000-000-010-635.jar. Note that we don't use MaxDB in a SAP environment as we have our own business application.

Following some very helpful feedback from Lars Breddemann, we fixed various points in our system: for example, result sets were not always properly closed, this is now done immediately after the query has been executed and the result rows were read. We also follow the advise from Elke Zietlow to always close a connection and its associated prepared statements when the error occurs. This also helps in most cases, but sometimes when the error occurs, even closing the connection and its prepared statements does not help and the problem "escalates" until we have to restart the db to fix the problem.

Back to the discussion in 2009, I used the two statements given by Lars to monitor the catalog cache usage: when I run this multiple times, I see that all result sets are properly closed as I only see the ones currently being used and they disappear.

One important point is that our java application keeps many prepared statements open in a cache, to have them ready to be reused. We can have up to 10'000 prepared statements open, with up to 100 jdbc connections. Actually the AK Cachedirectory full problem happens sometimes very soon after we restart our system and db, so at that time the number of prepared statements can be very low, which seems to indicate that the number of prepared statements being open is not necessarily linked to the problem.

Also in the discussion in 2009, Lars mentioned the fact that we use prepared statements of the type TYPE_SCROLL_INSENSITIVE and he was asking if we could not use TYPE_FORWARD_ONLY. Would this really make a difference? We need the TYPE_SCROLL_INSENSITIVE in many cases because we use some iterators to scroll up and down the result sets, so using TYPE_FORWARD_ONLY would require changing quite some code. I also saw in the MaxDB code that using the type TYPE_SCROLL_INSENSITIVE adds the string "FOR REUSE" to the sql statement, what does it exactly mean?

Amy help to fix that problem would be greatly appreciated.

Christophe

Hello,

I am experiencing issue when doing a test of OS/DB migration for APO from Oracle on HP-UX to Oracle on Linux X64 (RHEL6).

The migration of ABAP went without trouble, however I am unable to install liveCache (MaxDB) on RHEL 6.0.

According to note 916649, SCM 5.1 with liveCache 7.7.06.22 should be supported:

The following versions constitute the minimum requirement for the use of SAP liveCache on Red Hat 6:

SCM 5.1      : SAP LC/LCAPPS  5.1 SP25, SAP liveCache 7.7.06.22

I have used the instalaltion package LC770624A6028_2-20002022.SAR to update the LC version, the update of software went through, but I am unable to start the x_server.

It always core-dumped for segmentation fault, resp. the part that core dumped is vserver. I am not even able to check the version of vserver with vserver -V, it immediately core dumps. I am sure I have the right version (CPU version etc), also all maxdb verification tools returned no error at all.

The OS parametrization should be according to all the notes concerned, at least the OS colleagues confirmed that.

Thank you any suggestion,

Branislav GREGER

EDIT:

I will post here the the solution that worked for us after contacting SAP/RedHAT:

Why MaxDB is not starting after updating the operative system? - Red Hat Customer Portal

Hi all,

When I check the same sql statement in different systems,   P system and Q system.

It shows different execution plan for inner join

Sql statement

Excution plan

For system P    the value of MANDT is 1     table EKPO accessed first with full table scan.

For system Q    the value of MANDT is 4     table EKKO accessed first with index EKKO~1(in P also has this index)

Data volume in Q is a little bit larger than P.

Could you please help to find out why there is such a difference?  which one is correct?

How the optimizer works when process the inner join for maxDB?

Thanks & Regards,

Chris