Locking Entries Table.

i have used the FM Enqueue_____ and DEQUE____
i want to know in which table the lock entries are
entered, by sm12 i can know which is the locked entry
but i want to know the table in which entry is stored
pl. help me its urgent.
abhishek suppal

Hi,
it's a logical -not physical- lock
-> look TA: ST05 (option Enqueue trace)
Andreas

Similar Messages

Unalbe to delete lock entry table using Dequeue function module

Friends,
I display a base ALV list with custom app. tool bar. When i click on a button, i submit another report which updates a z-table for that corresponding row. I create a lock object for this entry before submitting the report. After updating the table, I try to delete the lock object using dequeue function module in the called report, but though the subrc is 0, the lock entry is not getting deleted in SM12. The called report, after dequeue, again submits report 1 (the caller). So, when i try to do some operation for the same row which I first selected, it triggers Foreign_lock exception. When I completely go out of the base list, only then the entry is deleted. Can anyone tell me the reason? I have tried with parameters _SCOPE & _SYNCHRON, but same result.
Regards,
Sathish R

Hi,
The triggering of the dequeue is not in the proper position as it need to be placed.
Thats the only problem as per u have described the issue.
Place the deque as soon as the report is return the value.
I hope it may work ur issue.

Lock entries standard table

Hi Experts,
Please help in finding which SAP Standard table can we find the lock entries(SM12 transaction).
Thanks!

Prerequisites
You have generated the demo data for the SQL Tutorial.
Log on to the database instance DEMODB as user MONA.
Examples
You can use the system table LOCKS to determine the following database information, among other things:
●     All locks that are currently held on table ROOM
SELECT lockmode, lockstate, rowidlength, rowidhex, rowid
FROM DOMAIN.LOCKS
    WHERE tablename = 'ROOM'
●     All locks that the current user holds in that database session on table ROOM
SELECT lockmode, lockstate, rowidlength, rowidhex, rowid
FROM DOMAIN.LOCKS, SYSINFO.SESSIONS
    WHERE tablename = 'ROOM'
      AND locks.session = sessions.sessionid
●     All locks that are currently held on the table with the hexadecimal internal identification 000000000000035D
SELECT lockmode, lockstate, rowidlength, rowidhex, rowid
FROM DOMAIN.LOCKS
    WHERE tableid = X'000000000000035D'
If the current user is the database administrator (DBA user) or the database system administrator (SYSDBA user), then all currently held locks are shown.
Users that belong to other user classes only see the locks held by that one user.
Definition
The system table LOCKS describes the current lock entries and entries for lock requests.
Structure
LOCKS
SESSION
FIXED(10)
ID of the database session
TRANSCOUNT
CHAR(20)
Transaction identification in the database session
PROCESS
FIXED(10)
Process identification in the database instance
USERNAME
CHAR(32)
Name of the user
DATE
DATE(10)
Creation date of the lock
TIME
TIME(8)
Creation time of the lock
TERMID
CHAR(18)
User terminal identification
LASTWRITE
CHAR(10)
Elapsed time since the last SQL statement for data manipulation
LOCKMODE
CHAR(14)
Type of lock (NULL value | SHARE | EXCLUSIVE)
LOCKSTATE
CHAR(10)
Status of lock
APPLPROCESS
FIXED(10)
Process identification on the client hardware
APPLNODE
CHAR(64)
Client hardware identification
SCHEMANAME
CHAR(32)
Name of the schema of the table
OWNER
CHAR(32)
Name of the owner of the table
TABLENAME
CHAR(32)
Name of the table
TABLEID
CHAR(8) BYTE
ID of the table
ROWIDLENGTH
FIXED(4)
Length of the key of the locked row
ROWIDHEX
CHAR(64) BYTE
Start of the key of the locked row in hexadecimal notation
ROWID
CHAR(128)
Start of the key of the locked row
http://dev.mysql.com/doc/maxdb/en/c4/812640632cec01e10000000a155106/content.htm

Lock entries for table SWWWIHEAD in SM12 Urgent

HI
From last few days, In SM12 there are lock entries coming for workitems of table SWWWIHEAD even though workitem is completed successfully. Time of lock entry shows it is time when approver started taking action on it.
Please let me know is there any impact of this on system and how it is happening and what we should do with these lock entries.
Appreciate your help.
Regards,
Shiv.

Dear,
Actually we faced an issue related to this like the approver took action on it. after that the item got locked. the basis is telling there could be the RFC session from SAP Portal inbox which is not closed somehow. may be session is exited without properly logging out. in this case the item was still in his inbox and when the approver tries to open it, the error message says workitem is locked bye the same user id. The basis is telling the lock will be removed after the default stipulated time (in my case, its 8 Hrs ! ).
hope this helps.
with regards,
Sudhahar R.

Db_associate fails with : Lock table is out of available lock entries

Hi
Occasionally on startup my app needs to rebuild its secondary database, so I call db_associate with DB_CREATE set. If the primary db is large the associate fails with "Lock table is out of available lock entries". Both databases are hashes, so I have not configured any special lock sizes as I didn't think I needed to.
What lock configuration does db_associate need to succeed?
I am using version 4.7.25
Thanks
Ashley

Hi Ashley,
You should be sizing the locking subsystem with high enough values so the secondary database rebuilds successfully, then run the "db_stat -C" utility and see how many locks, lock objects and lockers did you need to perform the operation and reconfigure the locking subsystem with values slightly bigger than what you needed, so you make sure that you'll have enough resources for the next time you'll rebuild the secondary.
"Lock table is out of available lock entries" means that the Berkeley DB locking subsystem has not been configured for enough locks. For more information, see the "Configuring locking: sizing the system" section of the Berkeley DB Reference Guide, included in your download package and also available at:
http://download.oracle.com/docs/cd/E17076_01/html/programmer_reference/lock_max.html
To see what locks are held in the database environment at any time, you can dump the lock table using the -Cl options:
% db_stat -h [database environment directory] -Cl -N
Additional documentation:
db_stat: http://download.oracle.com/docs/cd/E17076_02/html/api_reference/C/db_stat.html
set_lk_max_locks: http://download.oracle.com/docs/cd/E17076_01/html/api_reference/C/envset_lk_max_locks.html
Bogdan Coman

Perl & "Lock table is out of available lock entries"

Hi,
i use to retrieve about ten thousand results with ./dbxml,
but when i use the same query within a perl script,
i get the error:
Lock table is out of available lock entries
Query collection("frwiki_10_0.dbxml")/DOCUMENT/Sentence failed (1)
Error: Could not fetch next DOM element for doc id: 2, nid: 8CB6 in /Users/francois/Desktop/INRIA/EasyRef2_DBXML/script/../lib/session.pm, line 175
Database handles still open at environment close
Open database handle: frwiki_10_0.dbxml/structural_stats
Open database handle: frwiki_10_0.dbxml/secondary_document_statistics_double
Open database handle: frwiki_10_0.dbxml/secondary_document_index_double
Open database handle: frwiki_10_0.dbxml/secondary_document_statistics_string
Open database handle: frwiki_10_0.dbxml/secondary_document_index_string
Open database handle: frwiki_10_0.dbxml/node_nodestorage
Open database handle: frwiki_10_0.dbxml/secondary_document
Open database handle: frwiki_10_0.dbxml/secondary_dictionary
Open database handle: frwiki_10_0.dbxml/primary_dictionary
Open database handle: frwiki_10_0.dbxml/secondary_sequence
Open database handle: frwiki_10_0.dbxml/secondary_configuration
Segmentation fault
Somewhere on other forums, one's talking about Configuring locking: sizing the system & DB_ENV->set_lk_max_locks(),
but how can I my environment the same way with a perl script?

I'm configuring my environment in my Java application via this DB_CONFIG file, and it definitely works. When I had problems like you have, I just increased the number of locks, lockers, objects and everything started to work just fine. Are you sure that you have put DB_CONFIG into environment home directory. Did you increase the number of locks, lockers, objects sufficiently?
Vyacheslav
UPD. Does your application have enough permissions to read DB_CONFIG file?
Edited by: detonator413 on Oct 21, 2009 12:33 PM

Lock table is out of available locker entries

My mail server version is -->
Sun Java(tm) System Messaging Server STORE 6.3-0.15 (built Feb 9 2007)
Not always this thing happened but sometimes, I can find follow error message in deault log file.
---- default log --
[12/May/2009:12:00:00 +0900] epajo01 imdbverify[4106]: General Notice: verify database snapshots started
[12/May/2009:12:00:00 +0900] epajo01 imdbverify[4106]: General Notice: verify snapshots finished: Total verified 3 Total failed = 0
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Notice: imexpire started, functions: expire purge
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Lock table is out of available locker entries
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: DBERR: can't get locker id for file descriptor 20: Not enough space
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Critical: Unable to lock index for user/journal_ms08_i: Not enough space
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Error: locking {StoreRoot}/=user/02/91/=journal_ms08_i/store.exp: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Critical: Unable to lock index for user/journal_ms08_y: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
-------- omit ---------
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Error: locking {StoreRoot}/=user/e1/91/=journal_ms08_g/store.exp: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Lock table is out of available locker entries
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: DBERR: can't get locker id for file descriptor 23: Not enough space
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Critical: Unable to lock index for user/journal_ms08_w: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Error: locking {StoreRoot}/=user/73/e5/=journal/store.exp: Not enough space
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Error: locking {StoreRoot}/=user/e2/91/=journal_ms08_w/store.exp: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Critical: Unable to lock index for user/journal_ms08_h: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Error: locking {StoreRoot}/=user/f1/91/=journal_ms08_h/store.exp: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Critical: Unable to lock index for user/journal_ms08_x: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Error: locking error: Locker does not exist
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: Store Error: locking {StoreRoot}/=user/f2/91/=journal_ms08_x/store.exp: Invalid argument
[12/May/2009:12:00:01 +0900] epajo01 imexpire[4115]: General Notice: Expire finished
When I can see this error message in default log files, all emails are enqueued but not dequeued.
Emails are just piled up in a queue directory, and getting increased.
To solve this thing, I just restart mail server(with stop-msg, start-msg command) and then emails are dequeued.
In a web site, I found those error messages can be found when some interrption occurred like Control-c in product using Berkeley DB .
I know JMS is using Berkeley DB but at that time there is no chance to use Control-c.
With those log, I just can assum imexpire started when snapshots job is not finished completely(although log file shows snapshots job is finished).
Imexpire started before snapshots not release locker
But I am not Sure.
I don't know why this thing happened and what is solid workaround.
If someone had the same problem as mine, plz reply
Thanks in advance.
Edited by: leeky41 on May 12, 2009 7:22 AM

leeky41 wrote:
Sun Java(tm) System Messaging Server STORE 6.3-0.15 (built Feb 9 2007) Please always provide the full output of ./imsimta version. I cannot tell for example what platform you are using (Solaris SPARC/x86/Linux).
I don't know why this thing happened and what is solid workaround.I suggest your first step is to upgrade to a recent release of MS6.3 and see if the problem persists.
Regards,
Shane.

Lock table is out of available lock entries

Hi,
I'm using BDB 4.8 via Berkeley DB XML. I'm adding a lot of XML documents (ca. 1000) in one transaction and get "Lock table is out of available lock entries". My locks number is set to 100000 (it's too much but still...).
I know that I probably should not put so many docs in the same transaction, but why BDB throws "not enough locks" error? Aren't 100000 locks enough? (I also tried to set 1 million for testing purposes)
As a side effect question, may I change the number of locks after environment creation (but before opening it)?
P.S. Hope it's not offtop on this forum
Thanks in advance,
Vyacheslav

Hello,
As you mention, "Lock table is out of available lock entries" indicates that there are more locks than your underlying database environment is configured for. Please take a look at the documentation on "Configuring locking: sizing the system" section of the Berkeley DB Reference Guide at:
http://www.oracle.com/technology/documentation/berkeley-
db/db/programmer_reference/lock_max.html
From there:
The maximum number of locks required by an application cannot be easily estimated. It is possible to calculate a maximum number of locks by multiplying the maximum number of lockers, times the maximum number of lock objects, times two (two for the two possible lock modes for each object, read and write). However, this is a pessimal value, and real applications are unlikely to actually need that many locks. Reviewing the Lock subsystem statistics is the best way to determine this value.
What information is the lock subsystem statistics showing? You can get this with db_stat -c or programmatically with the environment lock_stat method.
Thanks,
Sandra

Max no of records in for all entries table

Hello all,
Hi have used for all entries in a select statement in BW extractor. This extractor is working fine for the test data. When i moved this code to pre-production for testing, there this extractor has to deal with thousands of records. In pre-prod , this select statement is not picking up all the records available in DB. Can any one give any idea on behavior of for all entries for large number of records. and is the any max limit for for all entries table.
Thank you..correct answer will be rewarded.
Regards
Sravan

Moderator message - Please search before asking and do not offer rewards (particularly since as far as I can see, you've awarded a total of two points in the last two years - post locked
Rob

Is there any function module to lock t024 table

is there lock object for t024 table?otherwise any fm for locking t024 table?

Hi Naren,
<b>Good ... check out the following documentation
Lock objects are used to lock the database table while making the modifications on the database table.
you can create your own lock objects using SE11.
if you create lock objects on any table system will create two function modules.
1.ENQUEUE....
2.DEQUEUE.....
first one is used to lock the table
second one used to removing lock on the table.
lock Table
CALL FUNCTION 'ENQUEUE_E_TABLE'
EXPORTING
tabname = table_name
EXCEPTIONS
foreign_lock = 1
system_failure = 2
OTHERS = 3.
Unlock Table
CALL FUNCTION 'DEQUEUE_E_TABLE'
EXPORTING
tabname = table_name
check this link :
http://help.sap.com/saphelp_40b/helpdata/en/cf/21eea5446011d189700000e8322d00/content.htm
_SCOPE = 1: The lock is not sent to the update program. The lock is removed when the transaction is ended.
_SCOPE = 2: The lock is sent to the update program. The update program is responsible for removing the lock. The dialog program which requested the lock no longer has an influence on the lock behavior. This is the standard setting for the ENQUEUE function module.
_SCOPE = 3: The lock
Re: lock objects
Managingin lock entries
http://help.sap.com/saphelp_nw04/helpdata/en/37/a2e3ae344411d3acb00000e83539c3/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/7b/f9813712f7434be10000009b38f8cf/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/cb/168237d30d974be10000009b38f8cf/frameset.htm</b>
Good Luck and thanks
AK

Lock entries making problem

Hi Experts,
We are facing one problem durring updating the records in background 'Z' transaction. It will update the a record in mm02. The updated record will store in a Z table.
But while executing mass records(multiple records) its getting error as lock entries. This error also coming after 1000 records. Upto 1000 records we are not getting any error. After this lock entries error comming.
Can any one pls guide me what will be the reason behind this? Even while updating the 'Z' records we are added the commit work also . Still the same error comming. Kindly guide as.
Moahana.

Hi
I hope you are using ENQUEUE_E_TABLE and DEQUEUE_E_TABLE FM while updated the tables
Yes Commit statement is very important while updating the records in Tables
Regards
Renu Gusain

Lock Entries are having the false time

Hello!
I've a problem in the lock table.
When I look at the status screen there is standing the right time.
But the lock entries are listed with a time which is 10 minutes in the future.
Can somebody tell me where this field gets his values? The lock table is in the shared memory I think, but I can't understand why there is the false time.
Thank you for your answers!
Florian

Hi,
do you mean the time of my system?
This time is correct.
The system time of the ERP Server and my system is nearly the same and the time of the lock entries not.
At our CRM system it is correct.
And at our Test-Systems it is also correct.

Lock entries for FM - 'ALM_ME_READ_CATALOG_PROFILE'

Dear Friends
Whenever the following function modules are called it create lock entries in sm12. So it restricts transaction QS41 for edit Mode.
ALM_ME_READ_CATALOG_PROFILE
QM09_READ_CATALOG_PROFILE
I want these lock entires to be deleted automatically after it is called. I tried to remove lock entires using the following function module and it never worked.
Call function 'DEQUEUE_EQQPGR2'
      exporting
        mode_qpgr = 'X'
        mandt      = sy-mandt
        katalogart = 'P'
        codegruppe = 'PTRTY'
Kindly help me.
Thanks

Hi Meghana,
I am not sure about the FM. But the CRM table COMM_PCAT_ITM contains the relation between product catalog and the product. In this table the product guids are stored in the field 'OBJECT' and corresponding product catalog guids are in the field 'PARENT_CATALOG'
Hope this helps to debug further.
Thnaks,
Paul Kondaveeti

Maximum number of Lock Entries

Hi Guys,
I'm doing some WBS Settlements through CJ88/CJB1 . It might happen that this Txn may process thousands of WBS Elements at a time which means all those WBS Elements will be locked .
How to find out the maximum Lock entries in SAP ?
I want to avoid LOCK TABLE OVERFLOW Exception when processing all the WBS Elements .
I have gone through the txn RZ11 and found out that the enque/table_size as 4096 KB (ie 4MB) .
I'm not sure how to many entries make out this 4MB . Do anyone have an Idea ??
Thanks .
Anil

Where is the relation to ABAP development? Please ask again in forum "SAP Netweaver Administrator".
Thread locked.
Thomas

Too many lock entries on BUT000 in SRM7

Hi,
When we are trying to update attributes of Org units through FM BBP_UPDATE_ATTRIBUTES, there are so many lock entries created for different values on table BUT000.
We are calling the said FM in loop becasue this FM has the capability of updating just one ORG unit at a time. So while the loop runs, there are a lot of lock entries created on BUT000 which are just not getting unlocked automatically.
There is a huge performance hit due to this. We are not sure how and why BUT000 entries are getting locked while updating org unit attributes.
Please suggest what should be a remedy to this.
Thanks,
Tirth

i dont know BUT000 table and have no idea what it does, but i suspect that it works like with every other thing in SAP system.
In DEV you mostly have not much data. E.G. in your case lets say 200 BUT000 entries.
200 lock entries aint a problem for the system.
In Quality you SHOULD have more data, up to number of data in production. If you have nearly same amount of data in Q like in P the problem should have existed in quality as well.
Another thing is that in productive MORE people work.
See there is a table where your lock entries get stored, if that table exceeds some certain amount of entries your system is going to slow down up to dumping or timeouting.
So in production system there are probably other people as well creating lockj entries with various transactions, while when you tested it in quality you were probably not much users on the system.

Locking Entries Table.

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