Oracle connection is very slow

Hello,
I install oracle enterprise 5 and oracle 11g R2 and when i connect oracle from plsql developer connectoion is very very slow.
What do you think about this problem ?
i don't want to install oracle 11g on windows server !

Hi,
Get the network speed/connection checked from the source server to database server. Also check the resources usage on client and server machine for any sign of resource issues.
Regards

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SELECT
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Thanks I will move to the correct one..
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Build the Indexes and it is still slow. I am querying from a view from another database, which is in 10g instances.
Moved: Query can run in Oracle 10g but very slow in 11g
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Edited by: 924400 on Apr 1, 2012 6:26 PM

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Oracle-11g connection is very slow

Hi Team,
Installed oracle11g with database yesterday. but the connection to database using tnsnames is very slow even from host server, where as sys / as sysdba is normal in hostserver.
And checked other databases(10g) connections in the same host server, normal. Here with I spooled alert log file and parameter list. pls do the needful help.
Aler log file from shut down to startup.
Sat Aug 06 11:28:54 2011
Shutting down instance (immediate)
Stopping background process SMCO
Shutting down instance: further logons disabled
Sat Aug 06 11:28:55 2011
Stopping background process CJQ0
Stopping background process QMNC
Stopping background process MMNL
Stopping background process MMON
License high water mark = 10
ALTER DATABASE CLOSE NORMAL
Sat Aug 06 11:28:58 2011
SMON: disabling tx recovery
SMON: disabling cache recovery
Sat Aug 06 11:28:58 2011
Shutting down archive processes
Archiving is disabled
Sat Aug 06 11:28:58 2011
ARCH shutting down
Sat Aug 06 11:28:58 2011
ARCH shutting down
Sat Aug 06 11:28:58 2011
ARCH shutting down
ARC1: Archival stopped
ARC0: Archival stopped
ARC3: Archival stopped
Sat Aug 06 11:28:58 2011
ARCH shutting down
ARC2: Archival stopped
Thread 1 closed at log sequence 9
Successful close of redo thread 1
Completed: ALTER DATABASE CLOSE NORMAL
ALTER DATABASE DISMOUNT
Completed: ALTER DATABASE DISMOUNT
ARCH: Archival disabled due to shutdown: 1089
Shutting down archive processes
Archiving is disabled
Archive process shutdown avoided: 0 active
ARCH: Archival disabled due to shutdown: 1089
Shutting down archive processes
Archiving is disabled
Archive process shutdown avoided: 0 active
Sat Aug 06 11:29:01 2011
Stopping background process VKTM:
Sat Aug 06 11:29:05 2011
Instance shutdown complete
Sat Aug 06 11:32:12 2011
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Picked latch-free SCN scheme 3
Using LOG_ARCHIVE_DEST_1 parameter default value as USE_DB_RECOVERY_FILE_DEST
Autotune of undo retention is turned on.
IMODE=BR
ILAT =118
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up:
Oracle Database 11g Release 11.2.0.1.0 - 64bit Production.
Using parameter settings in client-side pfile /oracle/ora11g/apps/dbs/initrakshak.ora on machine abml01
System parameters with non-default values:
processes                = 700
sga_max_size             = 30G
sga_target               = 30G
control_files            = "/barch10g_db/ora11g/rakshak_control/rkdatabase/control1/rakshak_control01.ctl"
control_files            = "/barch10g_db/ora11g/rakshak_redo/rkdatabase/control2/rakshak_control02.ctl"
control_files            = "/barch10g_db/ora11g/rakshak_idx1/rkdatabase/control3/rakshak_control03.ctl"
db_block_size            = 16384
compatible               = "11.2.0"
log_archive_dest         = "/barch10g_db/ora11g/rakshak_archive/rkdatabase/rakshak"
db_recovery_file_dest    = "/barch10g_db/ora11g/rakshak_idx1/rkdatabase/flash_recovery_area"
db_recovery_file_dest_size= 2G
undo_management          = "AUTO"
undo_tablespace          = "UNDOTBS1"
sec_case_sensitive_logon = FALSE
remote_login_passwordfile= "EXCLUSIVE"
utl_file_dir             = "/barch10g_db/ora11g/ldoutput/"
plsql_code_type          = "native"
job_queue_processes      = 100
cursor_sharing           = "FORCE"
audit_file_dest          = "/barch10g_db/ora11g/rakshak_idx1/rkdatabase/adump"
audit_trail              = "DB"
db_name                  = "rakshak"
open_cursors             = 700
diagnostic_dest          = "/barch10g_db/ora11g/rakshak_idx1/rkdatabase/"
Sat Aug 06 11:32:33 2011
PMON started with pid=2, OS id=9463
Sat Aug 06 11:32:34 2011
VKTM started with pid=3, OS id=9465 at elevated priority
VKTM running at (10)millisec precision with DBRM quantum (100)ms
Sat Aug 06 11:32:34 2011
GEN0 started with pid=4, OS id=9469
Sat Aug 06 11:32:34 2011
DIAG started with pid=5, OS id=9471
Sat Aug 06 11:32:34 2011
DBRM started with pid=6, OS id=9473
Sat Aug 06 11:32:34 2011
PSP0 started with pid=7, OS id=9475
Sat Aug 06 11:32:34 2011
DIA0 started with pid=8, OS id=9477
Sat Aug 06 11:32:34 2011
MMAN started with pid=9, OS id=9479
Sat Aug 06 11:32:34 2011
DBW0 started with pid=10, OS id=9481
Sat Aug 06 11:32:34 2011
DBW1 started with pid=11, OS id=9483
Sat Aug 06 11:32:34 2011
DBW2 started with pid=12, OS id=9485
Sat Aug 06 11:32:34 2011
LGWR started with pid=13, OS id=9487
Sat Aug 06 11:32:34 2011
CKPT started with pid=14, OS id=9489
Sat Aug 06 11:32:34 2011
SMON started with pid=15, OS id=9491
Sat Aug 06 11:32:34 2011
RECO started with pid=16, OS id=9493
Sat Aug 06 11:32:34 2011
MMON started with pid=17, OS id=9495
Sat Aug 06 11:32:34 2011
MMNL started with pid=18, OS id=9497
Sat Aug 06 11:32:34 2011
ORACLE_BASE not set in environment. It is recommended
that ORACLE_BASE be set in the environment
Sat Aug 06 11:34:34 2011
Shutting down instance (immediate)
Shutting down instance: further logons disabled
Stopping background process MMNL
Stopping background process MMON
License high water mark = 1
ALTER DATABASE CLOSE NORMAL
ORA-1507 signalled during: ALTER DATABASE CLOSE NORMAL...
ARCH: Archival disabled due to shutdown: 1089
Shutting down archive processes
Archiving is disabled
Archive process shutdown avoided: 0 active
ARCH: Archival disabled due to shutdown: 1089
Shutting down archive processes
Archiving is disabled
Archive process shutdown avoided: 0 active
Sat Aug 06 11:34:37 2011
Stopping background process VKTM:
Sat Aug 06 11:34:40 2011
Instance shutdown complete
Sat Aug 06 11:35:55 2011
Starting ORACLE instance (normal)
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Picked latch-free SCN scheme 3
Using LOG_ARCHIVE_DEST_1 parameter default value as USE_DB_RECOVERY_FILE_DEST
Autotune of undo retention is turned on.
IMODE=BR
ILAT =118
LICENSE_MAX_USERS = 0
SYS auditing is disabled
Starting up:
Oracle Database 11g Release 11.2.0.1.0 - 64bit Production.
Using parameter settings in client-side pfile /oracle/ora11g/apps/dbs/initrakshak.ora on machine abml01
System parameters with non-default values:
processes                = 700
sga_max_size             = 30G
sga_target               = 30G
control_files            = "/barch10g_db/ora11g/rakshak_control/rkdatabase/control1/rakshak_control01.ctl"
control_files            = "/barch10g_db/ora11g/rakshak_redo/rkdatabase/control2/rakshak_control02.ctl"
control_files            = "/barch10g_db/ora11g/rakshak_idx1/rkdatabase/control3/rakshak_control03.ctl"
db_block_size            = 16384
compatible               = "11.2.0"
log_archive_dest         = "/barch10g_db/ora11g/rakshak_archive/rkdatabase/rakshak"
db_recovery_file_dest    = "/barch10g_db/ora11g/rakshak_idx1/rkdatabase/flash_recovery_area"
db_recovery_file_dest_size= 2G
undo_management          = "AUTO"
undo_tablespace          = "UNDOTBS1"
sec_case_sensitive_logon = FALSE
remote_login_passwordfile= "EXCLUSIVE"
utl_file_dir             = "/barch10g_db/ora11g/ldoutput/"
plsql_code_type          = "native"
job_queue_processes      = 100
cursor_sharing           = "FORCE"
audit_file_dest          = "/barch10g_db/ora11g/rakshak_idx1/rkdatabase/adump"
audit_trail              = "DB"
db_name                  = "rakshak"
open_cursors             = 700
diagnostic_dest          = "/barch10g_db/ora11g/rakshak_idx1/rkdatabase/"
Sat Aug 06 11:36:16 2011
PMON started with pid=2, OS id=9648
Sat Aug 06 11:36:16 2011
VKTM started with pid=3, OS id=9657 at elevated priority
VKTM running at (10)millisec precision with DBRM quantum (100)ms
Sat Aug 06 11:36:16 2011
GEN0 started with pid=4, OS id=9669
Sat Aug 06 11:36:16 2011
DIAG started with pid=5, OS id=9678
Sat Aug 06 11:36:16 2011
DBRM started with pid=6, OS id=9686
Sat Aug 06 11:36:16 2011
PSP0 started with pid=7, OS id=9697
Sat Aug 06 11:36:16 2011
DIA0 started with pid=8, OS id=9704
Sat Aug 06 11:36:16 2011
MMAN started with pid=9, OS id=9711
Sat Aug 06 11:36:16 2011
DBW0 started with pid=10, OS id=9713
Sat Aug 06 11:36:16 2011
DBW1 started with pid=11, OS id=9715
Sat Aug 06 11:36:16 2011
DBW2 started with pid=12, OS id=9717
Sat Aug 06 11:36:16 2011
LGWR started with pid=13, OS id=9719
Sat Aug 06 11:36:16 2011
CKPT started with pid=14, OS id=9721
Sat Aug 06 11:36:16 2011
SMON started with pid=15, OS id=9723
Sat Aug 06 11:36:16 2011
RECO started with pid=16, OS id=9725
Sat Aug 06 11:36:16 2011
MMON started with pid=17, OS id=9727
Sat Aug 06 11:36:16 2011
MMNL started with pid=18, OS id=9729
Sat Aug 06 11:36:16 2011
ORACLE_BASE from environment = /oracle/ora11g/home
Sat Aug 06 11:36:40 2011
alter database mount
Sat Aug 06 11:36:44 2011
Successful mount of redo thread 1, with mount id 3292194824
Database mounted in Exclusive Mode
Lost write protection disabled
Completed: alter database mount
Sat Aug 06 11:36:54 2011
alter database open
LGWR: STARTING ARCH PROCESSES
Sat Aug 06 11:36:54 2011
ARC0 started with pid=20, OS id=9743
Sat Aug 06 11:36:55 2011
ARC0: Archival started
LGWR: STARTING ARCH PROCESSES COMPLETE
ARC0: STARTING ARCH PROCESSES
Sat Aug 06 11:36:55 2011
ARC1 started with pid=21, OS id=9745
Sat Aug 06 11:36:55 2011
ARC2 started with pid=22, OS id=9747
Sat Aug 06 11:36:55 2011
ARC3 started with pid=23, OS id=9749
ARC1: Archival started
ARC2: Archival started
ARC2: Becoming the 'no FAL' ARCH
ARC2: Becoming the 'no SRL' ARCH
ARC1: Becoming the heartbeat ARCH
Thread 1 opened at log sequence 9
Current log# 3 seq# 9 mem# 0: /barch10g_db/ora11g/rakshak_idx1/rkdatabase/redo3/rakshak_redolog3a.log
Current log# 3 seq# 9 mem# 1: /barch10g_db/ora11g/rakshak_idx1/rkdatabase/redo3/rakshak_redolog3b.log
Successful open of redo thread 1
Sat Aug 06 11:36:55 2011
SMON: enabling cache recovery
Successfully onlined Undo Tablespace 2.
Verifying file header compatibility for 11g tablespace encryption..
Verifying 11g file header compatibility for tablespace encryption completed
SMON: enabling tx recovery
Database Characterset is WE8ISO8859P1
No Resource Manager plan active
replication_dependency_tracking turned off (no async multimaster replication found)
Starting background process QMNC
Sat Aug 06 11:36:55 2011
QMNC started with pid=25, OS id=9753
Completed: alter database open
Sat Aug 06 11:36:56 2011
db_recovery_file_dest_size of 2048 MB is 0.99% used. This is a
user-specified limit on the amount of space that will be used by this
database for recovery-related files, and does not reflect the amount of
space available in the underlying filesystem or ASM diskgroup.
ARC3: Archival started
ARC0: STARTING ARCH PROCESSES COMPLETE
Sat Aug 06 11:36:58 2011
Starting background process CJQ0
Sat Aug 06 11:36:58 2011
CJQ0 started with pid=24, OS id=9768
Setting Resource Manager plan SCHEDULER[0x2FF9]:DEFAULT_MAINTENANCE_PLAN via scheduler window
Setting Resource Manager plan DEFAULT_MAINTENANCE_PLAN via parameter
Sat Aug 06 11:37:01 2011
Starting background process VKRM
Sat Aug 06 11:37:01 2011
VKRM started with pid=26, OS id=9770
Sat Aug 06 11:41:55 2011
Starting background process SMCO
Sat Aug 06 11:41:55 2011
SMCO started with pid=29, OS id=9920
parameter list
db_name='rakshak'
+#memory_target=30G+
processes = 700
audit_file_dest='/barch10g_db/ora11g/rakshak_idx1/rkdatabase/adump'
audit_trail ='db'
db_block_size=16384
db_recovery_file_dest='/barch10g_db/ora11g/rakshak_idx1/rkdatabase/flash_recovery_area'
db_recovery_file_dest_size=2G
diagnostic_dest='/barch10g_db/ora11g/rakshak_idx1/rkdatabase/'
+#dispatchers='(PROTOCOL=TCP) (SERVICE=ORCLXDB)'+
open_cursors=700
job_queue_processes=100
remote_login_passwordfile='EXCLUSIVE'
undo_management='AUTO'
undo_tablespace='UNDOTBS1'
+# You may want to ensure that control files are created on separate physical+
+# devices+
control_files = '/barch10g_db/ora11g/rakshak_control/rkdatabase/control1/rakshak_control01.ctl','/barch10g_db/ora11g/rakshak_redo/rkdatabase/control2/rakshak_control02.ctl','/barch10g_db/ora11g/rakshak_idx1/rkdatabase/control3/rakshak_control03.ctl'
compatible ='11.2.0'
SGA_MAX_SIZE=30G
SGA_TARGET=30G
Utl_file_dir='/barch10g_db/ora11g/ldoutput/'
sec_case_sensitive_logon=FALSE
plsql_code_type=native
cursor_sharing='FORCE'
log_archive_dest='/barch10g_db/ora11g/rakshak_archive/rkdatabase/rakshak'
If any information is needed, pls let me know.
thanks in advance
Regards
Phani Kumar

Phani wrote:
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Hello chesterpascual,
Welcome to the HP Support Forums!
Regarding the Deskjet 3520 and the error to use setup cartridges, you will need to call HP's Technical Support to see about sending some to you.
Click here to locate the contact information.
Regards,
JERENDS
I work on behalf of HP
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" to the left of the reply button to say “Thanks” for helping!

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1805 / 164783
Error Seconds (Local/Remote):
87 / 45535

Hi,
Thanks for replying.
line test was fine.
Here are results from bt speed tester
1. Best Effort Test: -provides background information.
Download Speed
15.57 Mbps
0 Mbps
21 Mbps
Max Achievable Speed
Download speedachieved during the test was - 15.57 Mbps
For your connection, the acceptable range of speeds is 4 Mbps-21 Mbps.
IP Profile for your line is - 16.12 Mbps
2. Upstream Test: -provides background information.
Upload Speed
0.83 Mbps
0 Mbps
0.83 Mbps
Max Achievable Speed
Upload speed achieved during the test was - 0.83Mbps
Additional Information:
Upstream Rate IP profile on your line is - 0.83 Mbps

UCP wrapped connection is very slow

Test with oracle jdbc driver - 11.2.0.3 and latest 12.1.0.1.
When we create connections directly, we get an instance of oracle.jdbc.driver.LogicalConnection.
When we create connections from UCP pool, we get an instance of $Proxy
Then, we run the same test on this connection:
public static long runDBTest(int loopCount) {
final Connection con = //get connection from pool or directly
long b = System.currentTimeMillis();
for(int index=0;index<loopCount;index++){
try {
PreparedStatement s = con.prepareStatement("select count(*) from no_table");
s.close();
catch (Exception e) {
System.out.println(e);
return (System.currentTimeMillis()-b);
some result of 10000 iterations:
--------- UCP accessUniversalConnectionPool ---------
connection: $Proxy0@61578aab
prepare statement only (ms): 512, 523...
execute a statement (ms): 2029, 2022...
--------- accessOracleConnectionPool ---------
connection: oracle.jdbc.driver.LogicalConnection@3adec8b3
prepare statement only (ms): 223, 247...
execute a statement (ms): 1632, 1671...
This is just synthetic test, but we did our performance tests with real usage of database (selects, updates) and it is indeed slower in real life scenarios, by magnitude of 10, so this synthetic test shows the problem very vell.
Is this inherent overhead of UCP or something can be done? Dynamic proxies introduce that much overhead?
As I understand, we need to use UCP to be able to support advanced features like oracle RAC, right?

1). yes, same JVM. it is running from same standalone java class, just pass into different parameters.
2). I already did, there is no significant different in execution part, time difference is from the prepare step.
the tests are done with local database, means JVM and oracle are in same machine.
see result below, execution part only is pretty much similar, around 1.5s.
--------- UCP accessUniversalConnectionPool ---------
connection: $Proxy0@61578aab
prepare statement only (ms): 512, 523...
execute a statement (ms): 2029, 2022... --- execution part is 1500 ms.
--------- accessOracleConnectionPool ---------
connection: oracle.jdbc.driver.LogicalConnection@3adec8b3
prepare statement only (ms): 223, 247...
execute a statement (ms): 1632, 1671...--- execution part is 1400 ms.

DBProviderFactories.GetFactory("Oracle.DataAccess.Client") very slow

The call to System.Data.Common.DBProvidersFactories.GetFactory("Oracle.DataAccess.Client") is taking over 2 minutes to return on my computer. By comparison, calls to GetFactory() for the System.Data.SqlClient and IBM.Data.DB2 takes less than a second.
Even more strange, the same call is very fast if I am running the code inside of the VS2010 debugger.
ODAC version 11.2.0.1.2 (32bit version)
Windows 7 64 bit
.NET 3.5 SP1
Oracle server - not relevant since test pgm is not connecting to a serve.
Code developed with VS 2010.
Test pgm built with:
- Target CPU=32 (so app runs as 32bit mode, instead of 64)
- Target Framework = .NET 3.5 SP1
The call has not always been this slow. I have been running with ODAC 11.2.0.1.2 since it's release. But, IIRC, the slowness just started several weeks ago.
Below is the test pgm:
Imports System.Configuration
Imports System.Data.Common
Module Module1
    Sub Main()
        CreateFactory("Oracle.DataAccess.Client")
        CreateFactory("System.Data.SqlClient")
        CreateFactory("IBM.Data.DB2")
    End Sub
    Sub CreateFactory(ByVal providerName As String)
        Dim sw = New Stopwatch
        sw.Start()
        Dim factory = DbProviderFactories.GetFactory(providerName)
        sw.Stop()
        If factory Is Nothing Then
            Throw New Exception(String.Format("DbProviderFactories.GetFactory({0}) failed", providerName))
        End If
        Console.WriteLine("DbProviderFactories.GetFactory({0}) call took {1} secs", providerName, sw.Elapsed.TotalSeconds)
    End Sub
End ModuleThe output I get is:
DbProviderFactories.GetFactory(Oracle.DataAccess.Client) call took 130.1584958 secs
DbProviderFactories.GetFactory(System.Data.SqlClient) call took 0.0001462 secs
DbProviderFactories.GetFactory(IBM.Data.DB2) call took 0.1252213 secs
Please let me know if you need any more information. All help is appreciated.
Jim

As I mentioned before, if I loaded the DBProviderFactory object, for the IBM.Data.DB2 provider, loading the Oracle.DataAccesss.Client provider ran quickly. The IBM.Data.DB2 provider always using a distributed transaction to communicate with the database. So, my guess is that the IBM DBProviderFactory was doing work to prepare for a distributed transaction. And this prep work allows the Oracle DBProviderFactory to run much faster.
So to test my theory, I created a TransactionScope object, before creating the Oracle DBProviderFactory. See new code below:
<pre>
Sub Main()
Using ts = New Transactions.TransactionScope()
CreateFactory("Oracle.DataAccess.Client")
End Using
End Sub
Sub CreateFactory(ByVal providerName As String)
Dim sw = New Stopwatch
sw.Start()
Dim factory = DbProviderFactories.GetFactory(providerName)
sw.Stop()
If factory Is Nothing Then
Throw New Exception(String.Format("DbProviderFactories.GetFactory({0}) failed", providerName))
End If
Console.WriteLine("DbProviderFactories.GetFactory({0}) call took {1} secs", providerName, sw.Elapsed.TotalSeconds)
End Sub
</pre>
And this was the result:
DbProviderFactories.GetFactory(Oracle.DataAccess.Client) call took 0.1925129 sec
a dramatic speedup.
Is this expected behavior? More importantly, is there a fix to make loading the Oracle DbProviderFactory faster without requiring the creation of a TransactionScope object?
Thanks,
Jim
Edited by: thompkin on Nov 18, 2010 10:55 AM

Oracle Login is very slow

Hi all,
I have two Windows 2000 Servers:
1. Compaq Server with one 2.4G CPU, 1G RAM and 30G harddisk
2. Acer Server with one 2.4G CPU, 1G RAM and 30G harddisk
The software configuration of two server are identical, they both have:
1 Windows 2000 Server with SP3
2 Oracle 8i ( Oracle configuration(such SGA, buffer size, etc...) are also identical
But I found two strange things I cannot explain.
1.)
When I local(not throuhg network) login Oracle on Compaq Server, it only takes no more than 1second to login. But When I local login Oracle on Acer Server it takes about 3 seconds to logon.
2.)
I local login to Oracle on Acer Server, and followed by executing a query which involves external procedure call, it takes 5 seconds to finish that query. In the same session, I executed the same query again and again, it only took 2 seconds to complete. I donot know why the first execution of a query (with external procedure call) takes longer time. It seems Oracle takes some time to load the external procedure service in Acer server. Again the strange thing, there is not such issue in Compaq Server, no matter when I execute the same query, it always take 2 seconds.
Could any one tell me why Oracle on Acer Server has slow response in certain situations (e.g Logon , and run first query involve external procedure). And any solution to solve the problem?
Thanks in advance.
Frank

Could any one tell me why Oracle on Acer Server has slow response in certain situations (Maybe that's why Compaq charge more than Acer.
Cheers, APC

Oracle Database suddenly very slow!

Hello,
After running our Oracle 10g instance on Red Hat Enterprise for more than two years without an itch it suddenly became extremely slow. A simple query that would take a few seconds now takes an hour to complete! It is not the network since the same happens from a local console.
I checked the log files on bdump and cdump but couldn't see anything wrong.
Any assistance would be much appreciated!
Thank you in advance.

hi,
do you perform the following
execute dbms_stats.gather_system_stats ('Start');
let the system do some typical work
execute dbms_stats.gather_system_stats ('Stop');
try running this and see what happens.
could you also post back some
vmstat 10 13
under typical work load and also some
sar figures
rgds
alan

Oracle database is very slow and hangs sometime

I am using Oracle 11g on Red hat 5.2 . My RAM is of 6 GB and swap size is 12GB . When I checked the used RAM and Swap area by using $ free -m command it shows that enough free memory (almost 4990 GB and swap space (more than 10GB) is available to use. Then I checked an alert.log file as my database was hanged . It contains error like
1. audit commit delay exceeded oracle
2. unable to spawn jobq slave process oracle
3. maximum number of sessions exceeded
4. could not allocate new resource
My init.ora contains following parameters.
Processes =150
Sessions= 248
Transactions = 220
memory_target = 2400m
sga_max_size = 1500m
sga_target = 0m
So, what steps i should take to stop database hanging and how can i boost slow performance ? Is there any problem with my resource manager and if so then how can i correct it?
Thanks
Tushar Lapani

Hi,
Please check the query
SELECT username,default_tablespace from dba_users;
Ususally the default tablespace of the user should not be in SYSTEM tablespace. This might cause performance issue. Create a seperate tablespace and alter/assign this user. Also must move all the objects from SYSTEM tablespace to this new tablespace which you created.
For complete details, you can refer the document http://docs.oracle.com/cd/B14117_01/server.101/b10752.pdf

Oracle connection is very slow

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