Problem shared pool (JDBC/Oracle)

Similar Questions

• Shared pool error in Oracle 10.1.0.5

  Installation: databases 3-node RAC cluster
  
  Version of the OS: RHEL 4.5
  DB version: 10.1.0.5
  Storage: ASM starts for R/C/D files & archivelogs on SAN box
  applications: No. OLTP applications that run on a separate application server
  
  
  We get the error ORA - 04031 SHARED POOL MEMORY. There are three nodes: ud1 UD2 & node3 each running on RHEL AS4 OS. The sga components are not granted automatically, I mean it's not automated sga tuning or resizing. We put each CMS component manuallay when required. All r/c/d files are stored on ASM starts.
  
  Since yesterday evening, we are facing the issue of MEMORY in the SHARED POOL. Many OLTP applications operate at the front end and the load is more on node3. Due to the saturation of the pool shared it affected applications and the use of the CPU on the application server was close to 90%. But the use of the CPU on each node of the rac has been slightly less than 30%. Customer complained about slow performance of applications, and in fact a few user sessions hung up.
  What we found in the alerts log is the error ORA-04031 shared pool. Which was casuing the applications and the problem started to work very slowly. For the workaround, we have increased the size of the SHARED_POOL_SIZE parameter as we emptied the shared pool memory. Now, the requests have been working well. I also observed that there are 454 IDLE sessions in the node3. These sessions will have no impact on performance?
  
  But I don't know if it will be fixed for the future as well. But can anyone suggest me how could I approach to solve this problem permanently?
  I know that we still use 10.1.0.5 release and also one more thing is that the SWAP space in one of the node is 4 GB short compared to the other two nodes of swap space. I can't post you the logs please. What I've observed and I did have posted here.
  
  Any suggestions will be greatly appreciate. Please take some time to help out me.
  
  Kind regards
  Imran khan

  PL see if the troubleshooting steps in MOS Doc 1088239.1 (master Note for diagnosing the ORA-4031) can help you

  HTH
  Srini

• ORA-04031: unable to allocate 32 bytes of shared memory ('shared pool'.  Check your error messages for the cause of the error. (= < POINTER >)

  Dear team,

  We have for instance R12.

  DB - 11.2.0.3

  12.1.2 - application

  in this concurrent instance depressed frequently when checking of log file showing the error as

  List of errors encountered:

  .............................................................................

  _ 1 _

  Systematic FDPCRQ met an ORACLE error. ORA-04031: unable to

  allocate 32 bytes of shared memory ('shared pool'.

  Check your error messages for the cause of the error. (= < POINTER >)

  .............................................................................

  APP-FND-01388: cannot read the value for the profile FND_MGR_STRTUP_THRES_TIME option in the routine, and routine.

  List of errors encountered:

  .............................................................................

  _ 1 _

  Routine AFPCAL has received the code of failure while running or analysis of your

  simultaneous program CPMGR

  
  

  Examine your log file of concurrent application for more information.

  Make sure that you pass arguments in the correct format.

  Post: WARNING: mail_queue_enter: create file maildrop / 379309.437: permission denied

  Please guide me to solve this problem.

  Concerning

  Kumar V

  Dear Kumar,

  I suggest you to check the FND_NODES table

  1) connect to SQLPLUS as the APPS user and execute the following statement:

  Select CONCURRENT_QUEUE_NAME in the FND_CONCURRENT_QUEUES where CONCURRENT_QUEUE_NAME like '% FNDSM ';

  (2) If you have found that FND_NODES table with entries incorrect node (old node from the Source Instance), and then run the query to clean below

  EXEC FND_CONC_CLONE. SETUP_CLEAN;
  COMMIT;

  (3) then run AutoConfig on all stages, firstly on the DB layer then APPS and webtiers levels to repopulate the necessary system tables,

  and make sure that you are now able to see the correct entries in the FND_NODES table and start the application services.

  Kind regards

  S27

• Why my static PL/SQL within SQL local variable is not transformed in space in the shared pool?

  Hello everyone,

  Oracle version: 12.1.0.1.0 - 64 bit

  OS: Linux Fedora Core 17 X86_64

  Description of the problem:

  I'm reading an interesting book of online oracle named: SQL in PL/SQL

  On page 11, it reads the following:

  In the absence of a compilation error, the PL/SQL compiler generates an equivalent statement of SQL regular text and stores this with the generated machine code. This instruction uses placeholders where the embedded SQL statement uses identifiers that have been resolved in the PL/SQL unit.

  What I understand of this (please, correct me if I'm wrong) is that whenever I write some static/embedded statement SQL within a PL/SQL block in which there are a few local variables in PL/SQL, and then final generated SQL statement (after resolution of identifier) will include placeholders (bind variables) instead of these identifiers the PL/SQL.

  I just wanted to see this in practice, so I made the following test:

  Test case:

  SQL> connect / as sysdba
  SQL> alter system flush shared_pool
  
  system altered
  

  So, normally, after execution of the foregoing the shared_pool on my development environment is now empty.

  And then I run the following PL/SQL block

  <<b>>
  declare
      depid hr.employees.department_id%type := 100;
      cnt   pls_integer := 0;
  begin
      select
          count(*)
      into
          b.cnt
      from
          hr.employees t1
      where
          t1.department_id = b.depid;
  end;
  /
  --
  --
  column sql_id new_value sqlid_saved;
  --
  select
      v1.sql_id
  from
      v$sql v1
  where
      v1.sql_text like '%t1.department_id = b.depid%';
  --     
  -- 
  select
      v1.sql_text
  from
      v$sql v1
  where
      v1.sql_id = '&sqlid_saved';
  

  And the result was:

  SQL_ID
  -------------
  687dxvsmrwm9z
  g17tjb3f8t94y

  6 old: v1.sql_id = "& sqlid_saved"
  6 new: v1.sql_id = "g17tjb3f8t94y".

  SQL_TEXT
  --------------------------------------------------------------------------------
  < < b > > declare depid hr.employees.department_id%type: = 100;     CNT pls_in
  SEB: = 0; Start select count (*) in b.cnt of
  T1 hr. Employees where t1.department_id = b.depid; end;

  
  SQL >

  What I don't understand is the main part of the SQL_TEXT I put in red.

  Instead of

  T1.department_id = b.depid

  I expected to see something like

  T1.department_id = : B

  In other words, some bind variable, because depid is a local variable inside my PL/SQL block used in integrated/static SQL statement, so it must be converted to a reserved space in the shared pool instead of the original identifier.

  You kindly could you tell me what I misunderstood?

  Thanks in advance

  > But once again no variable binding in the stored/parsed SQL statement. That's what I don't understand.

  Submitted by PL/SQL SQL is "normalized", which includes (among other things) convert uppercase. Your query on v$ sql is looking for '% hr.employees% '.

• Shared pool error

  Hi guys...
  
  I am running Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production on Solaris 64-bit...
  
  We often experience the following error message:
  
  ORA-04031: could not allocate 4 096 bytes of shared memory ('shared pool', "job SAID directory: ...","PL/SQL MPCODE ',' ' BAMIMA: Bam buffer '")
  
  I did a search on this error on the net... we tried to have our sql statements use the binaries...
  
  My shared_pool is 3.5 GB in size.
  
  My overall sga is close to 15 GB.
  
  How can I solve this problem...
  
  Thank you

  Hello

  Order the link, below, it may be useful to you.
  [http://www.dba-oracle.com/sf_ora_04031_unable_to_allocate_string_bytes_of_shared_memory.htm]

  Kind regards
  Delphine K

• narrowing of the shared pool

  Hi friends, when you browse the documentation I read that "internal adjustment algorithm isn't shrink shared pool when you use EAMA. I want to know if that's all the time or for specific cases. If for all the time, then it can lead to performance and more problem sql, pl/sql etc info will reside.
  
  Please explain to me. Thanks in advance

  Hello
  Yes in the case of the distributed databases, using pfile we can statup dbs with client side pfile as well. See here,
  The location of the file in distributed environments initialization parameter
  The client that allows you to access the database must be able to read the settings of the base initialization file to start instance database. Therefore, always store a file parameter on the computer running the client.

  In undistributed treatment facilities, the computer is running Oracle and the customer. This computer already has the settings file stored on one of its hard drives. In distributed processing facilities, however, local client workstations may administer a database stored on a remote computer. In this configuration, the local client computers must each store a copy of the settings for the corresponding databases file.
  http://download-West.Oracle.com/docs/CD/A87860_01/doc/server.817/a76956/start.htm#6439
  HTH
  Aman...

• sqlplus: error while loading shared libraries: /opt/oracle/lib/libclntsh.so.11.1: ELF file data encoding not little-endian not

  Hello

  I get the error message below.

  We have made the correction but the suite spot not be able to start the database.

  sqlplus: error while loading shared libraries: /opt/oracle/u01/app/oracle/product/11.2.0.3/lib/libclntsh.so.11.1: ELF file data encoding not little-endian not

  Need your help in resolving this issue.

  Thank you

  Srinivasan R wrote:

  Hello

  FYI,.

  We have applied the fix for database only and there's OS patching.

  Thank you

  Srinivasan R

  Realize that Oracle provides the PATCH of the DATABASE for different versions of the OS & if you apply the patch to the database for the version of Solaris on a HP version.

  then the problems will result.

  If sqlplus worked without error before applying the patch & now ENDIAN error reports, problem exists between keyboard and Chair!

• problem connecting to the Oracle 11 g Server

  Hi all

  I just encountered an error to connect to a server Oracle 11 g on linux environment.

  This is the login screen where it connects to an idle instance.

  $ (oracle): sqlplus / as sysdba

  SQL * more: Production of the version 11.2.0.3.0 on Mon 6 Oct 20:05:41 2014

  Copyright (c) 1982, 2011, Oracle.  All rights reserved.

  Connected

  20:05:51 idle >

  The error log says

  ORA-00604: an error has occurred at the SQL level 1 recursive

  ORA-04031: unable to allocate 32 bytes of shared memory (' shared pool ',' select f.file #, f.block #, f... ") ', 'SQLA","tmp ".

  any solution would be much appreciated...

  Thanks in advance...

  starting strength;

• question related to the shared pool

  Hi Experts,

  Version of DB - Oracle Database 11g Enterprise Edition Release 11.2.0.1.0

  OS - Windows 7

  (installed on my laptop)

  Just started reading concepts DBA. I had a few questions. Please explain indetail/short ;-).

  (1) can we see the size of the Cache of the library and Cache data dictionary which are internal units of the Shared pool.
  (2) one of the advantages of the package is - when we invoke a single method, oracle loads the whole package into the buffer and for subsequent calls, it will not go to the db files. Here the buffer means library Cache. My understanding is correct.
  (3) I am able to see the two parameters shared_pool_size(value =0), shared_pool_reserved_size (value 15099494) to parameter v$. What is the difference between these two parameters.

  
  Thank you very much in advance for your help.

  See you soon,.
  Suri ;-)

  Your questions:

  1 Yes, v$ sgastat

  2 Yes, if your terminology is a little loose.

  3. the parameters described here, content

• JDBC Oracle CEP data cartridge

  Hello
  
  I'm trying to implement the JDBC Oracle CEP data cartridge
  From:
  http://docs.Oracle.com/CD/E23943_01/apirefs.1111/e12048/datacartjdbc.htm#CIHCEFBH
  The problem is that it fails on deployment with the following error:
  
  < exception thrown to prepare the com.oracle.cep.cartridge.jdbc.JdbcCartridgeContext.checkCartridgeContextConfig method.
  java.lang.AssertionError: java.lang.ClassNotFoundException: weblogic.jdbc.wrapper.PoolConnection
  
  I added the file that contains this class of classpath (com.bea.core.datasource6_1.10.0.0.jar),
  but get the same error.
  Any help would be appreciated.
  
  Kind regards
  Dmitry

  Hi, Dmitry,
  Based on the version of your jar, I assume you are using 11g ps5 part. I tried your app on my about the issue can be reproduced.
  Could you try your application in an own env?
  Actually, you need not pack up the com.bea.core.datasource6_1.10.0.0.jar and com.bea.oracle.ojdbc6_1.1.0.0_11 - 2-0-2 - 0.jar in the container application.

  BTW: as the application to connect db in OraDcnAdapter, the following packages must be imported into the MANIFEST. MF
  Oracle.JDBC.DCN,
  Oracle.JDBC

  Concerning

• shared pool of pinned objects

  How do I know what objects are already pinned in the shared pool? TX

  Indra Budiantho wrote:
  How do I know what objects are already pinned in the shared pool? TX

  http://www.lmgtfy.com/?q=Oracle+how+to+know+which+objects+are+already+pinned+in+the+shared+pool

• Data dictionary - shared pool

  Hi everyone, I have read that the pool of the shared pool data dictionary has the data dictionary information, but my doubt is if it has only the information of the view V$ or too has the value given in the DBA_ views.
  Thank you very much for your help.
  Concerning

  user12215372 wrote:
  Hi everyone, I have read that the pool of the shared pool data dictionary has the data dictionary information, but my doubt is if it has only the information of the view V$ or too has the value given in the DBA_ views.
  Thank you very much for your help.
  Concerning

  Dictionary Cache

  + The data dictionary is a collection views and database tables containing the reference information about the database, its structures and its users. Oracle allows access to the dictionary of data frequently during the SQL analysis. This access is essential for the holding of the Oracle. +

  The data dictionary is accessible so often by Oracle that two special locations in memory are designated to receive the data from the dictionary. An area is called the data dictionary cache, also known as the cache line because it contains data that the lines instead of tampons (who hold entire blocks of data). The other area in memory to store data dictionary is the library cache. All Oracle user processes share these two caches for access to the data dictionary information.

  reference http://docs.oracle.com/cd/B19306_01/server.102/b14220/memory.htm

• Shared pool size increases... need help... AS SOON AS POSSIBLE

  Hi guys
  
  Our shared pool size is growing constantly. We've had a breakdown when it reaches 2 GB last time. her new growing and now at 1.3 GB.
  
  don't know the reason why he grows too?
  
  Please find below the information.
  
  SGA_TARGET = 6 GB
  SGA_MAX_SIZE = 8GB
  
  cpu_count = 6.
  
  I tried a lot of things...
  (1) flush the shared_pool - no effect
  
  Not sure if under idea can help us.
  
  If we can change the size of the SGA_TARGET to 7 GB. He is currently 6 GB. and sga_max_size 8 GB.
  
  
  
  My query is... Why it's happening... And what we can do... Please send your expert advisor on it. AS SOON AS POSSIBLE.
  
  My setup is...
  
  Oracle Database 11 g Enterprise Edition Release 11.1.0.7.0 - 64 bit Production
  
  Let me know if you need more information.

  Hello

  Script below will give you information of memory from the pool of shred.

  coil memoryinfo.out

  SELECT sum (sharable_mem) "total memory".
  , avg (sharable_mem) 'average of memory '.
  , count (1) Num_Statements
  , sum (executions) "TotExecs".
  , substr (sql_text, 1, 100) 'SQL '.
  V $ sqlstats
  The executions WHERE = 1
  GROUP BY substr (sql_text, 1, 100)
  HAVING count (1) > 5
  ORDER BY DESC 3;

  spool off

  Run the same and download the support of oracle.

  Since you are workign with oracle, you can give this thread replied.

  Kind regards
  Rakesh jayappa

• RMAN, shared pool

  Hello
  Forgive my ignorance, but I have 3 basic questions please:
  
  1. What do these commands:
  

  sql  'alter tablespace test2 offline';
  switch tablespace test2 to copy;
  recover tablespace test2;
  sql 'alter tablespace test2 online';

  I found high in a script and confused about this.
  
  2 if I put my memory_taget 3 G and memory_max_target to 3 G, and then I put shared_pool at 50 M, then it means that the shared pool is set at 50 M and cannot exceed by Oracle automatically, if need arises?
  
  3 - I have this line in the RMAN report
  

  File Key     TY LV S Ckp SCN    Ckp Time  #Pieces #Copies Compressed Tag
  ---- ------- -  -- - ---------- --------- ------- ------- ---------- ---
  1    5       B  F  A 631092     04-NOV-09 1       1       YES        TAG20031104T195949

  What is the meaning of the column TY, LV, S and parts?
  
  Thank you for your patience.

  1. What do these commands:

  sql  'alter tablespace test2 offline';
  switch tablespace test2 to copy;
  recover tablespace test2;
  sql 'alter tablespace test2 online';
  

  I found high in a script and confused about this.

  Your code should be like that. In this you move test2 tablespace to a new diskgroup called "+ DATANEW".

  backup as copy tablespace test2 format '+DATANEW';
  sql  'alter tablespace test2 offline';
  switch tablespace test2 to copy;
  recover tablespace test2;
  sql 'alter tablespace test2 online';
  

  concerning

  2 if I put my memory_taget 3 G and memory_max_target to 3 G, and then I put shared_pool at 50 M, then it means that the shared pool is set at 50 M and cannot exceed by Oracle automatically, if need arises?

  No, Oracle would not limit the pool shared 50 m, but use the space of 3G, as appropriate, must be basic. But why together shared pool if low value compared to your total LMS?

  concerning

• Need help with shared pool sizing

  Hello
  
  
  Database: 8.1.7
  OS: win 2003 Server
  
  While checking memory pool settings, I found that, at any time, about 200 MB of memory is free. Can I use this to increase the library cache misses (it is > 1%). To reduce this miss, I need increse shared pool size. Since there are always free memory, I was wondering can I use it instead of increasing shared pool memory?
  
  My settings are:
  Library Cache Misses about (> 1% and < 3%) - recommended 1 < %
  Rank of the absences of the cache (5-7%) - recommended < 10%
  Free memory in the shared pool - 200 M
  
  Best regards

  The shared pool became self-adjusting in 8.0, so you can't set the size of the library cache more.
  As you have 200 M freestyle, increasing the shared pool will not work.
  You'd better study how to reduce the number of parsed soft hard, while the upgrade to a Certified version of Oracle.

  -------------
  Sybrand Bakker
  Senior Oracle DBA